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Grid Solutions Capacitor Bank Protection and Control System Instruction Manual Product version: 7.6x GE publication code: 1601-9015-AF2 (GEK-130995A) E83849 LISTED IND.CONT. EQ. 52TL 1601-9015-AF2...
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The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The content of this manual is for informational use only and is subject to change without notice.
Page 3: Table Of Contents

2.5.14 Production tests ........................2-34 2.5.15 Approvals ..........................2-35 2.5.16 Maintenance.........................2-35 3 INSTALLATION Unpack and inspect ....................3-1 Panel cutouts ......................3-2 3.2.1 Horizontal units ........................3-2 3.2.2 Vertical units ........................... 3-6 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 4: Table Of Contents

Protection summary window..................4-4 4.1.7 Settings templates........................4-5 4.1.8 Secure and lock FlexLogic equations ................4-9 4.1.9 Settings file traceability....................4-12 Front panel interface ...................4-15 4.2.1 Front panel..........................4-15 4.2.2 Front panel display......................4-17 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 5: Table Of Contents

System setup.......................5-140 5.5.1 AC inputs ..........................5-140 5.5.2 Power system........................5-141 5.5.3 Signal sources........................5-142 5.5.4 Breakers..........................5-144 5.5.5 Disconnect switch control...................5-150 5.5.6 FlexCurves...........................5-155 FlexLogic ......................5-162 5.6.1 FlexLogic operands ......................5-162 5.6.2 FlexLogic rules ........................5-177 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 6: Table Of Contents

6.2.2 Graphical front panel ......................6-4 Status........................6-4 6.3.1 Contact inputs ........................6-4 6.3.2 Virtual inputs ...........................6-4 6.3.3 RxGOOSE boolean inputs ....................6-5 6.3.4 RxGOOSE DPS inputs......................6-5 6.3.5 Teleprotection inputs ......................6-5 6.3.6 Contact outputs........................6-5 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 7: Table Of Contents

Internally fused capacitors ....................8-2 8.1.4 Fuseless capacitors......................8-2 8.1.5 Unfused capacitors ......................8-3 Connections of shunt capacitor banks .............. 8-3 8.2.1 Grounded wye-connected banks ................. 8-3 8.2.2 Ungrounded wye-connected banks................8-3 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 8: Table Of Contents

10.10 Replace front panel ................... 10-15 10.11 Replace module ....................10-23 10.12 Battery......................... 10-24 10.12.1 Replace battery for SH/SL power supply ............. 10-24 10.12.2 Dispose of battery ......................10-25 viii C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 9: Table Of Contents

FlexAnalog items ....................A-1 OPERANDS B RADIUS SERVER RADIUS server configuration ................B-1 CONFIGURATION C COMMAND LINE Command line interface ..................C-1 INTERFACE D MISCELLANEOUS Warranty .........................D-1 Revision history ......................D-1 ABBREVIATIONS INDEX C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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TABLE OF CONTENTS C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 11: Introduction

Ensure that the control power applied to the device, the alternating current (AC), and voltage input match the ratings specified on the relay nameplate. Do not apply current or voltage in excess of the specified limits. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 12: For Further Assistance

When contacting GE by e-mail, optionally include a device information file, which is generated in the EnerVista software by clicking the Service Report button. The service report also can be generated in the field, for example with a USB cable connected between the graphical front panel and a computer, and the Device Setup configured for the USB connection.
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CHAPTER 1: INTRODUCTION FOR FURTHER ASSISTANCE Figure 1-1: Generate service report in EnerVista software C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 15: Product

2.1 Product description The C70 Capacitor Bank Protection and Control System is part of the Universal Relay (UR) series of products. It is a microprocessor-based relay for protection and control of small, medium, and large three-phase capacitor banks. The relay can be ordered with up to three current transformer/voltage transformer (CT/VT) modules, allowing for flexible application in variety of bank configurations.
Page 16: Description

IEC 61850, Modbus/TCP, TFTP, and PTP (according to IEEE Std. 1588-2008 or IEC 61588), and it allows access to the relay via any standard web browser (C70 web pages). The IEC 60870-5-104 protocol is supported on the Ethernet port.
Page 17: Security

Power factor metering VT fuse failure DNP 3.0 or IEC 60870-5-104 protocol Setting groups (6) 2.2 Security The following security features are available: • Password security — Basic security present by default C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the C70, the remote password is used. If the connection is to a front panel port, the local password applies. (These two local and remote password settings are not shown the figure.)
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CyberSentry Security Device Definition Settings |---------- Product Setup |--------------- Security (CyberSentry) |--------------- Supervisory See table notes See table notes |--------------- Display Properties |--------------- Clear Relay Records (settings) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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|---------- Front Panel Labels Designer |---------- Protection Summary Commands |---------- Virtual Inputs |---------- Clear Records |---------- Set Date and Time User Displays Targets Actual Values |---------- Front panel labels designer C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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If a RADIUS server is provided, but is unreachable over the network, server authentication requests are denied. In this situation, use local UR accounts to gain access to the UR system. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 22: Order Codes

The order code is on the product label and indicates the product options applicable. The C70 is available as a 19-inch rack horizontal mount or reduced-size (¾) vertical unit and consists of the following modules: power supply, CPU, CT/VT, contact input and output, transducer input and output, and inter-relay communications.
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PRP, CyberSentry Lvl 1, and IEC 61850 PRP, CyberSentry Lvl 1, and enhanced capacitor bank control PRP, CyberSentry Lvl 1, IEC 61850, and enhanced capacitor bank control IEEE 1588, PRP, and CyberSentry Lvl 1 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 24: Order Codes With Process Bus Modules

1300 nm, multimode, LED, 2 Channels G.703, 2 Channels 7W RS422, 2 Channels 2.3.2 Order codes with process bus modules Table 2-6: C70 order codes for horizontal units with process bus - * ** - * * * - F **...
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Channel 1 - IEEE C37.94, MM, 64/128 kbps; Channel 2 - 1550 nm, single-mode, Laser IEEE C37.94, 820 nm, multimode, LED, 2 Channels 820 nm, multimode, LED, 2 Channels 1300 nm, multimode, LED, 2 Channels G.703, 2 Channels 7W RS422, 2 Channels C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-11...
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ORDER CODES CHAPTER 2: PRODUCT DESCRIPTION Table 2-7: C70 order codes for reduced-size vertical units with process bus - * ** - * * * - F ** - H ** - M ** - P/R ** Reduced Size Vertical Mount (see note regarding P/R slot below)
Page 27: Replacement Modules

Replacement modules can be ordered separately. When ordering a replacement CPU module or front panel, provide the serial number of your existing unit. Not all replacement modules apply to the C70 relay. The modules specified in the order codes for the C70 are available as replacement modules for the C70.
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Channel 1 - G.703; Channel 2 - 1550 nm, single-mode Laser IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 1 Channel IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels 2-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 29: Signal Processing

(when applicable), and auxiliary voltages. The 2.4 kHz cut-off frequency applies to both 50 Hz and 60 Hz applications and fixed in the hardware, and thus is not dependent on the system nominal frequency setting. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-15...
Page 30

The analog/digital converter has the following ranges of AC signals: Voltages: Eq. 2-1 Currents: Eq. 2-2 Current harmonics are estimated based on raw samples with the use of the full-cycle Fourier filter. Harmonics 2nd through 25th are estimated. 2-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 31: Specifications

ICD/CID/IID files, and so on), IEEE 1588 (IEEE C37.238 power profile) based time synchronization, CyberSentry (advanced cyber security), the Parallel Redundancy Protocol (PRP), IEC 60870-5-103, and so on. 2.5 Specifications Specifications are subject to change without notice. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-17...
Page 32: Protection Elements

> 2.0 × CT: ±1.5% of reading > 2.0 × CT rating Curve shapes: IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse, Short/Very/ Extremely Inverse; I t; FlexCurves™ (programmable); Definite Time (0.01 s base curve) Curve multiplier: Time Dial = 0.00 to 600.00 in steps of 0.01...
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0.1 to 2.0 x CT rating ±1.5% of reading > 2.0 x CT rating Curve shapes: IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse, Short/Very/ Extremely Inverse; I t; FlexCurves™ (programmable); Definite Time (0.01 s base...
Page 34

Pickup delay: 0 to 600.00 s in steps of 0.01 Timer accuracy: ±3% of operate time or ±35 ms, whichever is greater Operate time: <35 ms at 60 Hz 2-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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Operate time: <30 ms at 1.10 pickup at 60 Hz AUXILIARY OVERVOLTAGE Pickup level: 0.004 to 3.000 pu in steps of 0.001 Dropout level: 97 to 98% of pickup C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-21...
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0 to 1000 min. in steps of 1 Reset time constant: 0 to 1000 min. in steps of 1 Minimum reset time: 0 to 1000 min. in steps of 1 2-22 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 37: User-programmable Elements

Reset mode: self-reset or latched LED TEST Initiation: from any contact input or user-programmable condition Number of tests: 3, interruptible at any time C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-23...
Page 38: Monitoring

FlexLogic equation Data: AC input channels; element state; contact input state; contact output state Data storage: in non-volatile memory EVENT RECORDER Capacity: 1024 events Time-tag: to 1 microsecond 2-24 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 39: Metering

THD: 1. f > 0.4pu: (0.25% + 0.035% / harmonic) of reading or 0.20% of 100%, whichever is greater 2. f < 0.4pu: as above plus %error of f C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-25...
Page 40: Inputs

CONTACT INPUTS WITH AUTO-BURNISHING Dry contacts: 1000 Ω maximum Wet contacts: 300 V DC maximum Selectable thresholds: 17 V, 33 V, 84 V, 166 V Tolerance: ±10% Contacts per common return: 2-26 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 41: Power Supply

Voltage loss hold-up: 200 ms duration at maximum load NOTE: Low range is DC only. HIGH RANGE Nominal DC voltage: 125 to 250 V Minimum DC voltage: 88 V C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-27...
Page 42: Outputs

Control: separate operate and reset inputs Control mode: operate-dominant or reset-dominant FORM-A VOLTAGE MONITOR Applicable voltage: approx. 15 to 250 V DC Trickle current: approx. 1 to 2.5 mA 2-28 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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10 A at L/R = 40 ms 10 A at L/R = 40 ms (0 to 250 V DC) 1.6 A at L/R = 20 ms 0.8 A L/R = 40 ms C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-29...
Page 44: Communications

Power budget 10 dB Maximum input power –14 dBm Typical distance 2 km Full duplex Redundancy ETHERNET (10/100 MB TWISTED PAIR) Modes: 10 Mb, 10/100 Mb (auto-detect) Connector: RJ45 2-30 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 45: Inter-relay Communications

9 dB –14 dBm 1300 nm Laser, Single mode –1 dBm –30 dBm 29 dB –14 dBm 1550 nm Laser, Single mode +5 dBm –30 dBm 35 dB –14 dBm C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-31...
Page 46: Cybersentry Security

1 phasor metering page for each AC Source 5 tabular metering pages with dynamic metering and status event records page with dynamic update product information page settings, actual values, error messages (targets) 2-32 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 47: Environmental

IP40 front, IP10 back (new enhanced front panel) IP54 front with IP54 mounting collar accessory (new enhanced front panel) Ingress protection with IP20 cover accessory: IP20 back Noise: 0 dB C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-33...
Page 48: Type Tests

Insulation: class 1, Pollution degree: 2, Over voltage cat II 1 Not tested by third party. 2.5.14 Production tests THERMAL Products go through an environmental test based upon an Accepted Quality Level (AQL) sampling process. 2-34 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 49: Approvals

Normally, cleaning is not required. When dust has accumulated on the front panel display, wipe with a dry cloth. To avoid deterioration of electrolytic capacitors, power up units that are stored in a de-energized state once per year, for one hour continuously. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-35...
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SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION 2-36 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 51: Installation

For any issues, contact GE as outlined in the For Further Assistance section in chapter 1. Check that you have the latest copy of the C70 Instruction Manual and the UR Family Communications Guide, for the applicable firmware version, at http://www.gegridsolutions.com/multilin/manuals/index.htm...
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3.2.1 Horizontal units The C70 is available as a 19-inch rack horizontal mount unit with a removable front panel. The front panel is specified as enhanced, standard, or graphical at the time of ordering. The enhanced and graphical front panels contain additional user-programmable pushbuttons and LED indicators.
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CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-1: Horizontal dimensions (old enhanced front panel) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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PANEL CUTOUTS CHAPTER 3: INSTALLATION Figure 3-2: Horizontal dimensions (enhanced front panel) Figure 3-3: Horizontal mounting (enhanced and graphical front panels) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-4: Horizontal dimensions and mounting (standard front panel) Figure 3-5: Horizontal dimensions (graphical front panel) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 56

3.2.2 Vertical units The C70 is available as a reduced size (¾) vertical mount unit, with a removable front panel. The front panel is specified as enhanced or standard at the time of ordering. The enhanced front panel contains additional user-programmable pushbuttons and LED indicators.
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CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-7: Vertical dimensions and mounting (enhanced front panel) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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PANEL CUTOUTS CHAPTER 3: INSTALLATION Figure 3-8: Vertical dimensions and mounting (standard front panel) For side-mounting C70 devices with the enhanced front panel, see the following documents available on the UR DVD and the GE Grid Solutions website: • GEK-113180 —...
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CHAPTER 3: INSTALLATION PANEL CUTOUTS For side-mounting C70 devices with the standard front panel, use the following figures. Figure 3-9: Vertical side-mounting installation (standard front panel) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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PANEL CUTOUTS CHAPTER 3: INSTALLATION Figure 3-10: Vertical side-mounting rear dimensions (standard front panel) 3-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 61: Rear Terminal Layout

Two-slot wide modules take their slot designation from the first slot position (nearest to CPU module), indicated by an arrow on the terminal block. The figure shows an example of rear terminal assignments. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-11...
Page 62

Wire connections to these two modules at 13 inch-pounds. Figure 3-12: CPU modules and power supply The following figure shows the optical connectors for CPU modules. 3-12 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 63

CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-13: LC fiber connector (left) and ST fiber connector (right) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-13...
Page 64: Wiring

WIRING CHAPTER 3: INSTALLATION 3.3 Wiring 3.3.1 Typical wiring Figure 3-14: Typical wiring diagram (T module shown for CPU) 3-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 65: Dielectric Strength

The power supply module can be ordered for two possible voltage ranges, and the C70 can be ordered with or without a redundant power supply module option. Each range has a dedicated input connection for proper operation. The ranges are as follows (see the Specifications section of chapter 2 for details): •...
Page 66: Ct/vt Modules

CHAPTER 3: INSTALLATION For high-reliability systems, the C70 has a redundant option in which two C70 power supplies are placed in parallel on the bus. If one of the power supplies becomes faulted, the second power supply assumes the full load of the relay without any interruptions.
Page 67

UR models. Substitute the tilde “~” symbol with the slot position of the module in the following figure. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-17...
Page 68: Process Bus Modules

Figure 3-17: CT/VT module wiring 3.3.5 Process bus modules The C70 can be ordered with a process bus interface module. The module interfaces with the HardFiber Process Bus System, or HardFiber Brick, allowing bidirectional IEC 61850 fiber-optic communications with up to eight HardFiber Bricks.
Page 69: Contact Inputs And Outputs

Form-A contact output with or without a current or voltage monitoring option is not polarity sensitive. The polarity shown in the figure is required for solid-state contact output connection. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-19...
Page 70

Where a tilde “~” symbol appears, substitute the slot position of the module. Where a number sign “#” appears, substitute the contact number. 3-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 71

Form-C Form-A Form-A Form-A Form-C Form-A Form-A Form-A Form-C Form-C Form-C Form-A Form-C Form-C Form-C Form-A Fast Form-C ~5a, ~5c 2 Inputs Form-C ~5a, ~5c 2 Inputs C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-21...
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~4A module ~4B module ~4C module Terminal Output Terminal Output Terminal Output Terminal Output assignment assignment assignment assignment Form-A Not Used Not Used Not Used Form-A Solid-State Solid-State Solid-State 3-22 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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~4a, ~4c 2 Inputs 2 Outputs ~5a, ~5c 2 Inputs 2 Outputs ~6a, ~6c 2 Inputs 2 Outputs ~7a, ~7c 2 Inputs 2 Outputs ~8a, ~8c 2 Inputs Not Used C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-23...
Page 74

WIRING CHAPTER 3: INSTALLATION Figure 3-19: Contact input and output module wiring (Sheet 1 of 3) 3-24 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
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CHAPTER 3: INSTALLATION WIRING Figure 3-20: Contact input and output module wiring (Sheet 2 of 3) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-25...
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17 V DC for 24 V sources, 33 V DC for 48 V sources, 84 V DC for 110 to 125 V sources, and 166 V DC for 250 V sources. Figure 3-22: Dry and wet contact input connections Where a tilde “~” symbol appears, substitute the slot position of the module. 3-26 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 77

C70 input even when the output is open, if there is a substantial distributed capacitance (represented by C1) present in the wiring between the output and the C70 input, and the debounce time setting in the C70 relay is low enough.
Page 78

"R" as calculated later. Table 3-5: Typical debounce time setting Stray capacitance (μF) Battery voltage (V) Debounce time (ms) 0.05 0.05 3-28 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 79

Eq. 3-2 The 2 mA current is used in case the contact input is connected across the GE Form A contact output with voltage monitoring. Otherwise use the amperage of the active circuit connected to the contact input when its contact output is open and the voltage across the contact input is third trigger threshold to calculate the resistor value.
Page 80

Contact inputs can be susceptible to parasitic capacitance, caused by long cable runs affected by switching surges from external circuits. This can result in inadvertent activation of contact inputs with the external contact open. In this case, GE recommends using the contact I/O module with active impedance circuit.
Page 81: Transducer Inputs And Outputs

The following figure illustrates the transducer module types (5A, 5C, 5D, 5E, and 5F) and channel arrangements that can be ordered for the relay. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-31...
Page 82

CHAPTER 3: INSTALLATION Where a tilde “~” symbol appears, substitute the slot position of the module. Figure 3-28: Transducer input/output module wiring The following figure show how to connect RTDs. 3-32 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 83: Rs232 Port

RS232 port is shown in the following figure for the nine-pin connector on the UR and nine or 25-pin connector on a computer. The baud rate for this port can be set, with a default of 115200 bps. Figure 3-30: RS232 front panel port connection C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-33...
Page 84: Cpu Communication Ports

3.3.9.1 Overview There is a rear RS485 communication port on the CPU module. The CPU module does not require a surge ground connection. Figure 3-31: CPU module communications wiring 3-34 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 85

This common voltage is implied to be a power supply common. Some systems allow the shield (drain wire) to be used as common wire and to connect directly to the C70 COM terminal (#3); others function correctly only if the common wire is connected to the C70 COM terminal, but insulated from the shield.
Page 86: Irig-b

IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices. The IRIG-B code allows time accuracies of up to 100 ns. The GE MultiSync 100 1588 GPS Clock as well as third-party equipment are available for generating the IRIG-B signal.
Page 87: Direct Input And Output Communications

UR1-Tx1 to UR2-Rx1, UR2-Tx1 to UR3-Rx1, UR3-Tx1 to UR4-Rx1, and UR4-Tx1 to UR1-Rx1 for the first ring; and UR1-Tx2 to UR4-Rx2, UR4-Tx2 to UR3-Rx2, UR3-Tx2 to UR2-Rx2, and UR2-Tx2 to UR1-Rx2 for the second ring. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-37...
Page 88

Those that apply depend on options purchased. The options are outlined in the Inter-Relay Communications section of the Order Code tables in Chapter 2. All of the fiber modules use ST type connectors. 3-38 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 89: Fiber: Led And Eled Transmitters

The following figure shows the typical pin interconnection between two G.703 interfaces. For the actual physical arrangement of these pins, see the Rear Terminal Layout section earlier in this chapter. All pin interconnections are to be maintained for a connection to a multiplexer. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-39...
Page 90

Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module is inserted fully. 3-40 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 91

(S1 = ON) and set timing mode to loop timing (S5 = OFF and S6 = OFF). The switch settings for the internal and loop timing modes are shown. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-41...
Page 92

One source lies on the G.703 line side of the interface while the other lies on the differential Manchester side of the interface. Figure 3-44: G.703 dual loopback mode 3-42 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 93: Rs422 Interface

(data module 1) connects to the clock inputs of the UR RS422 interface in the usual way. In C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-43...
Page 94

Figure 3-47: Timing configuration for RS422 two-channel, three-terminal application Data module 1 provides timing to the C70 RS422 interface via the ST(A) and ST(B) outputs. Data module 1 also provides timing to data module 2 TT(A) and TT(B) inputs via the ST(A) and AT(B) outputs. The data module pin numbers have been omitted in the figure because they vary by manufacturer.
Page 95: Ieee C37.94 Interface

Connection — as per all fiber-optic connections, a Tx-to-Rx connection is required The UR-series C37.94 module can be connected directly to any compliant digital multiplexer that supports the IEEE C37.94 standard. The figure shows the concept. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-45...
Page 96

5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on it and is to be used on all ends of C70 communication for two and three terminal applications.
Page 97

Figure 3-52: IEEE C37.94 timing selection switch setting Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the following figure. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-47...
Page 98: Activate Relay

MESSAGE SECURITY Press the down arrow until the message displays. MESSAGE INSTALLATION Press the right arrow until the Not Programmed message displays. MESSAGE RELAY SETTINGS: 3-48 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 99: Install Software

To communicate via the RS232 port, use a standard straight-through serial cable. Connect the DB-9 male end to the relay and the DB-9 or DB-25 female end to the computer COM2 port as described in the CPU Communication Ports section earlier in this chapter. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-49...
Page 100: System Requirements

This device (catalog number F485) connects to the computer using a straight-through serial cable. A shielded twisted-pair wire (20, 22, or 24 AWG) connects the F485 converter to the C70 rear communications port. The converter terminals (+, –, GND) are connected to the C70 communication module (+, –, COM) terminals. See the CPU Communication Ports section in chapter 3 for details.
Page 101

Add Now button to list software items for the product. EnerVista Launchpad obtains the software from the Internet or DVD and automatically starts the installation program after prompting about updates. From the web, the software is downloaded. A wizard opens. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-51...
Page 102: Add Device To Software

You connect remotely to the C70 through the rear RS485 or Ethernet port with a computer running the EnerVista UR Setup software. The C70 also can be accessed locally with a computer through the front panel RS232 or USB port or the rear Ethernet port using the Quick Connect feature.
Page 103: Set Ip Address In Ur

Online Window area, cannot be moved from it to another grouping, and needs to be renamed in the Device Setup window. GE instead recommends using the Device Setup window to add devices, as outlined here. 3.7.1 Set IP address in UR The IP and subnet addresses need to be added to the UR for Ethernet communication.
Page 104

ADD DEVICE TO SOFTWARE CHAPTER 3: INSTALLATION connections window. Or in Windows 7, access the Network and Sharing Center in the Control Panel. Right-click the Local Area Connection icon and select Properties. 3-54 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 105

Select the Internet Protocol (TCP/IP) item from the list, and click the Properties button. Click the “Use the following IP address” box. Enter an IP address with the first three numbers the same as the IP address of the C70 relay and the last number different (in this example, 1.1.1.2).
Page 106

Minimum = 0ms, Maximum = 0ms, Average = 0 ms Pinging 1.1.1.1 with 32 bytes of data: verify the physical connection between the C70 and the computer, and double-check the programmed IP address in setting, then repeat step 2. PRODUCT SETUP  COMMUNICATIONS  NETWORK  IP ADDRESS...
Page 107

Click the Quick Connect button to open the window. Select the Ethernet interface and enter the IP address assigned to the C70, then click the Connect button. The EnerVista UR Setup software creates a site named “Quick Connect” with a corresponding device also named “Quick Connect”...
Page 108: Configure Serial Connection

For the RS232 connection, a computer with an RS232 port and a serial cable are required. To use the RS485 terminals at the back of the relay, a GE Grid Solutions F485 converter (or compatible RS232-to-RS485 converter) is required. See the F485 instruction manual for details.
Page 109

Processor, such as an SEL-2030 or SEL-2032. This option enables display of a terminal window to allow interaction with the other device. Click the Read Order Code button to connect to the C70 and upload the order code to the software. If a communications error occurs, ensure that the EnerVista software serial communications values entered in the previous step correspond to the relay setting values, and also ensure that the same IP address is not assigned to multiple C70 ports.
Page 110: Configure Ethernet Connection

10. If using a gateway to connect to the device, select Yes from the drop-down list. 11. Click the Read Order Code button to connect to the C70 device and upload the order code. If the device was entered already, a message displays "Device ’x’ is also using IP address.." If a communications error occurs, ensure that the...
Page 111: Configure Modem Connection

12. Click the OK button when the relay order code has been received. The new site and device are added to the Online Window. The device has been configured for Ethernet communications. Proceed to the Connect to the C70 section to begin communications.
Page 112: Connect To The C70

When unable to connect because of an "ACCESS VIOLATION," access Device Setup and refresh the order code for the device. When unable to connect, ensure that the same IP address is not assigned to multiple C70 ports, for example under Settings > Product Setup > Communications > Network.
Page 113: Use Quick Connect Via Front Rs232 Port

Connect an RS232 serial cable to the computer and the front panel RS232 port. Start the EnerVista UR Setup software, or in EnerVista Launchpad select the UR device to start the software. Click the Quick Connect button. The window opens. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 3-63...
Page 114: Use Quick Connect Via Front Usb Port

Click the Quick Connect button to open the window. Select the USB Interface and the "GE Virtual Serial Port" driver from the drop-down list, then click Connect. If the GE driver does not display, it means that the USB cable was connected on Windows 10 when upgrading the UR software.
Page 115: Set Up Cybersentry And Change Default Password

Connect" and displays them in the Online Window. Expand the sections to view data directly from the C70 device. Use the Device Setup button to change the site name. Each time that the EnerVista software is initialized, click the Quick Connect button to establish direct communications to the C70.
Page 116: Import Settings

URS file is retained. 3-66 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 117: Connect To D400 Gateway

3.11 Connect to D400 gateway A GE Multilin D400 Substation Gateway can be used to collect data from UR devices in a local area network (LAN). It collects metering, status, event, and fault report data from serial or LAN-based intelligent substation devices, and it pre-processes the data.
Page 118: Setting Files

These are the configuration/settings files in the IEC 61850 SCL/IID format. The ur.iid file is saved with a "_YYMMDDhhmmss" retrieval time stamp, for example ur_170525183124.iid. It is stored in the D400 folder system using the UR site and device name. 3-68 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 119

The EnerVista UR Setup software is provided with every C70. This chapter outlines the EnerVista software interface. The EnerVista UR Setup help file in the software also provides details for getting started and using the software interface.
Page 120: Event Viewing

IP Address IP Subnet Mask IP Routing When a settings file is loaded to a C70 that is in-service, the following sequence occurs: The C70 takes itself out of service. The C70 issues a UNIT NOT PROGRAMMED major self-test error.
Page 121: File Support

Settings list / offline window area Software windows, with common toolbar Settings file data view windows, with common toolbar Workspace area with data view tabs Status bar 10. Quick action hot links C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 122: Protection Summary Window

The Protection Summary is a graphical user interface to manage elements, such as enabling and disabling them. Access it under Settings > Protection Summary. See the Settings chapter for information on use. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 123: Settings Templates

The settings file template is now enabled and the file menus display in light blue. The settings file is now in template editing mode. To undo the action, select Template Mode > Remove Template. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 124

Figure 4-4: Settings template with all settings specified as locked Specify the settings to make viewable by clicking them. A setting available to view displays with a yellow background. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 125

4.1.7.3 Add password protection to a template GE recommends that templates be saved with password protection to maximize security. When templates are created for online settings, the password is added during the initial template creation step. It does not need to be added after the template is created.
Page 126

Once the template has been applied, users are limited to edit the settings specified by the template, but all settings are shown. The effect of applying the template to the phase time overcurrent settings is shown as follows. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 127: Secure And Lock Flexlogic Equations

EnerVista UR Setup is in EDIT mode. Specify the entries to lock by clicking them. The locked entries display a grey background as shown in the example. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 128

The effect of applying the template to the FlexLogic entries is shown here. Figure 4-10: Locking FlexLogic entries through settings templates The FlexLogic entries are also shown as locked in the graphical view and on the front panel display. 4-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 129

Actual Values > Product Info > Model Information, the inside front panel, and the rear of the device. Right-click the setting file in the Offline Window area and select the Edit Device Properties item. The window opens. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-11...
Page 130: Settings File Traceability

When a settings file is transferred to a C70 device, the date, time, and serial number of the C70 are sent back to EnerVista UR Setup and added to the settings file on the local computer. This information can be compared with the C70 actual values at any later date to determine if security has been compromised.
Page 131

• The transfer date of a settings file written to a C70 is logged in the relay and can be viewed in the EnerVista software or the front panel display. Likewise, the transfer date of a settings file saved to a local computer is logged in the EnerVista software.
Page 132

4.1.9.2 Online device traceability information The C70 serial number and file transfer date are available for an online device through the actual values. Select the Actual Values > Product Info > Model Information menu item within the EnerVista online window as shown in the example.
Page 133: Front Panel Interface

The enhanced front panel consists of LED panels, an RS232 port, keypad, LCD display, control pushbuttons, and optional user-programmable pushbuttons. The front panel is hinged to allow access to removable modules inside the chassis. The C70 enhanced front panel can be horizontal or vertical. The following figure shows the horizontal front panel.
Page 134

IEC 61850. The USB port connects to a computer with the EnerVista software and can be used to upgrade the relay and to transfer files and settings. The USB port is the square type B. 4-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 135: Front Panel Display

The front panel can be viewed and used in the EnerVista software, for example to view an error message displayed on the front panel or the LEDs. To view the front panel in EnerVista software: Click Actual Values > Front Panel, then any option. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-17...
Page 136

IRIG-B, SNTP, and so on, the date/time is shown in white, and otherwise in yellow. On pages other than the home page, the header displays the name of the page. The footer dynamically labels the Tab, or control, pushbuttons immediately below. Page content displays between the header and footer. 4-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 137

Configure the home page in the software under Settings > Product Setup > Graphical Panel > Home Page. The menu does not display when there is no graphical front panel. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-19...
Page 138

Factory default names are SLD 1 to SLD 5. Pages that have no configured content have a blank Tab pushbutton label, and the Tab pushbutton does nothing. The label for the current page has a blue background. Figure 4-24: Toolbar options for single-line diagram 4-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 139

Figure 4-25: Single-line diagram of open circuit breakers Under Settings > System Setup > Switches and Breakers, enable and name the six switches and two breakers. Switch 6, M568G, has the A/3 Pole Opened setting on. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-21...
Page 140

Line Diagram Editor. Add the four switches for the top line by clicking the GE switch symbol in the toolbar, then clicking in the window. (If the UR device is not online, the software attempts to connect.) Right-click to edit properties. Rotate switches SW569 and SW5682 to 270 degrees.
Page 141

Figure 4-27: Single-line diagram on graphical front panel Press the Enable Control pushbutton. The side pushbutton labels display. Figure 4-28: Side pushbutton display on graphical front panel Press the CB523 breaker pushbutton. Its menu displays. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-23...
Page 142

To add a line component, click it in the toolbox, then click in the window. Double-click a line to open its properties window to set orientation. Figure 4-30: Line and bus crossover symbols 4-24 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 143

The symbols assume horizontal symbol orientation, red - closed color, and green - open scheme. With vertical orientation, they are rotated 90 degrees. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-25...
Page 144

(horizontal or vertical), color scheme (red - closed, or red - open), and assigned side button (if any). If the selected breaker or disconnect element does 4-26 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 145

A question mark displays in a symbol on the graphical front panel when status is bad. The question mark does not rotate with orientation. Figure 4-34: Symbols when status is bad The following figures show the orientation available for the static components. The default position is 0 degrees. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-27...
Page 146

FRONT PANEL INTERFACE CHAPTER 4: INTERFACES Figure 4-35: Single-line diagram static symbol orientation (sheet 1 of 2) 4-28 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 147

User-programmable pushbuttons 9 to 16 can be programmed among the 10 pushbuttons on the left and right sides of the screen display. They show dynamically and provide a means to perform the same control as the other pushbuttons. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-29...
Page 148

To add a metering component, click the M symbol in the toolbox, then click in the window. Drag it to its final location. Double-click it to open the properties window. The figure shows the properties that can be edited. 4-30 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 149

Self Reset, so the alarm displays in a solid color. The blue alarm type is Acknowledgeable, so the alarm flashes until it is acknowledged, for example by navigating with the arrow keys and pressing the ENTER button. The alarm then remains blue until the trigger condition is eliminated. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-31...
Page 150

FlexLogic operand. The self-reset mode alarm sequence conforms to ISA-18.1-1979 (R2004) standard type A 4 5 6. Figure 4-40: Annunciator alarm sequence in Self Reset mode 4-32 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 151

An alarm remains in an alarm state (for example, displays red) when the condition remains. That is, if you acknowledged a flashing alarm but the alarm condition remains, the background color remains red. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-33...
Page 152

The three page layouts (3 × 4, 4 × 6, and 6 × 8) select the number of rows x columns of windows that appear in a page. Annunciator window size and text size shrink as the number of annunciator windows in a page increases. 4-34 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 153

Content to display is configured with the cell lines. The content can be actual values, a status indicator, or text. • Actual value — Select from the FlexAnalogs applicable to the C70, where a FlexAnalog is an analog parameter C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 154

Save — Updates the connected device if online or the open setting file if offline with changes made • Restore — Undoes changes that have not been saved • Default — Changes all settings in the window to factory default values 4-36 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 155: Front Panel Navigation Keys

ESCAPE — If a setting is open for edit, this pushbutton closes the setting without saving. If a popup menu is open, this pushbutton closes it. If an item is selected, this pushbutton deselects it. Otherwise this pushbutton activates the previous page in the page hierarchy. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-37...
Page 156: Led Indicators

IN SERVICE — Indicates that control power is applied, all monitored inputs/outputs and internal systems are fine, and the relay is in (online) Programmed mode (under Settings > Product Setup > Installation) 4-38 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 157

Support for applying a customized label beside every LED is provided. Default labels are shipped in the label package of every C70, together with custom templates. The default labels can be replaced by user-printed labels. User customization of LED operation is of maximum benefit in installations where languages other than English are used to communicate with operators.
Page 158

PHASE A — Indicates phase A was involved • PHASE B — Indicates phase B was involved • PHASE C — Indicates phase C was involved • NEUTRAL/GROUND — Indicates that neutral or ground was involved 4-40 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 159

TROUBLE — Indicates that the relay has detected an internal problem. Check the self-test messages outlined at the end of the Commands and Targets chapter, and view the event records under Actual Values > Records. For a beta / pre-release, this LED is always on. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-41...
Page 160

PHASE B — LED 12 — Indicates phase B was involved • PHASE C — LED 13 — Indicates phase C was involved • NEUTRAL/GROUND — LED 14 — Indicates that neutral or ground was involved 4-42 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 161: Front Panel Labelling

FRONT PANEL INTERFACE 4.2.5 Front panel labelling 4.2.5.1 Enhanced front panel The following procedure requires these pre-requisites: • The UR front panel label cutout sheet (GE part number 1006-0047) has been downloaded from http://www.gegridsolutions.com/products/support/ur/URLEDenhanced.doc and printed • Small-bladed knife To create custom LED and pushbuttons labels for the enhanced front panel: Start the EnerVista UR Setup software.
Page 162

FRONT PANEL INTERFACE CHAPTER 4: INTERFACES The label package shipped with every C70 contains the three default labels, the custom label template sheet, and the label removal tool. If the default labels are suitable for your application, insert them in the appropriate slots and program the LEDs to match them.
Page 163

Slide the new LED label inside the pocket until the text is properly aligned with the LEDs, as shown. To remove the user-programmable pushbutton labels from the C70 front panel and insert the custom labels: Use the knife to lift the pushbutton label and slide the tail of the label tool underneath, as shown. Ensure that the bent C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM –...
Page 164

Remove the tool and attached user-programmable pushbutton label. Slide the new user-programmable pushbutton label inside the pocket until the text is properly aligned with the 4-46 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 165

To create LED and pushbutton labels for a standard front panel: In the EnerVista software, if the C70 is not already listed in the Offline Window area, add it by right-clicking it and selecting the Add Device to Offline Window option.
Page 166

4.2.5.3 Graphical front panel The C70 includes software for labelling the LEDs and pushbuttons on the graphical front panel and a sticker sheet with pre- printed and blank labels. The pre-printed labels are on the top-left of the template sheet, and the blank labels are on the bottom-right.
Page 167: Menu Navigation

Use the down, right, left, and up arrows to navigate the menu. The up and down arrow keys move within a group of headers, sub-headers, setting values, or actual MESSAGE C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-49...
Page 168

The Page Up and Page Down Tab pushbuttons also navigate through the list. When there is only a single page of options, they jump to the first and last entries. The options displayed depend on order code. 4-50 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 169: Change Settings

This flash message momentarily appears as confirmation of the storing process. Numerical values that contain decimal places are rounded-off if more decimal place digits are entered than specified by the step value. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-51...
Page 170

An example is a confirmation message upon saving settings. This setting specifies how long to display the message. Press the Menu pushbutton to display the main menu. 4-52 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 171

Use the Up or Down pushbutton to select SETTINGS, then press the Right or ENTER pushbutton. Figure 4-57: Settings menu With PRODUCT SETUP selected, press the Right or ENTER pushbutton. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-53...
Page 172

Pressing the ENTER pushbutton with the - key selected inverts the sign. Pressing the ENTER pushbutton with the decimal point selected enters that character at the insertion point. Push ENTER now to accept the 4. 4-54 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 173

To add accents, highlight a key and hold the ENTER pushbutton on the graphical front panel. Any special characters associated with the key display. Figure 4-61: Settings page with keyboard and accents C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-55...
Page 174: View Actual Values

Figure 4-62: Phasor display The configurable name displays in the header and Tab pushbutton label. Factory default names are Page 1, Page 2, and so 4-56 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 175: Breaker Control

4.2.9 Breaker control The C70 can interface with associated circuit breakers. In many cases the application monitors the state of the breaker, that can be presented on front panel LEDs, along with a breaker trouble indication. Breaker operations can be manually initiated from the front panel keypad or automatically initiated from a FlexLogic operand.
Page 176: Change Passwords

When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the C70, the remote password must be used. If the connection is to the RS232 port of the front panel, the local password must be used.
Page 177: Invalid Password Entry

By default, when an incorrect Command or Setting password has been entered via the front panel three times within five minutes, the FlexLogic operand is set to “On” and the C70 does not allow settings or command level LOCAL ACCESS DENIED access via the front panel for five minutes.
Page 178

Connection S, R Set, Reset Timer pickup. Triggered by the settings latch in the diagram. Timer reset. Triggered by the reset latch in the diagram. Figure 4-64: Logic diagram 4-60 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 179: Flexlogic Design Using Engineer

Works with all UR firmware versions The figure shows an example where several inputs are used to trigger an output. With the OR function, any one of the inputs can trigger the output. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-61...
Page 180

This section explains how to use Engineer. It outlines the following topics: • Design logic • Send file to and from device • Monitor logic • View front panel • Generate connectivity report • Preferences 4-62 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 181: Design Logic

Preparation — Under Settings > Inputs/Outputs > Virtual Outputs, virtual outputs 3 and 4 are named DLTrigger Top logic — Seven-minute timer trigger Bottom logic — Turn on LED 9 for 10 seconds when the trigger starts C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-63...
Page 182

This procedure uses input / output logic as an example. To create a logic diagram: In the Offline Window area, access Engineer for the device, then Logic Designer. If the device is not listed, right-click 4-64 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 183

Optionally delete the default logic diagram by right-clicking its tab at the bottom of the window and selecting Delete. To add a blank sheet, click Edit > Add Sheet. A new tab displays. Or use the last tab displayed, which is a blank sheet. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-65...
Page 184

Line option. The cursor needs to be at the connection point to end the line, not elsewhere on the block. Note that the outline color is no longer red on the blocks. 4-66 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 185

The warning "input using disabled feature" means that input needs to be enabled. Double-click the block, click the View Associated Screen button, enable the setting, save, and recompile. The output and messages are explained in the next section. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-67...
Page 186

IEC 61850 panel and thereby become synchronized. The CID file and the IID file (depending on the preference 'Do not update IID file when updating SCL files') are updated. If the CID file is not already there, it is generated. 4-68 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 187

FLEXLOGIC DESIGN USING ENGINEER The location of these files is C:\ProgramData\GE Power Management\urpc, for example, in the Offline and Online folders. Any FlexLogic equations entered in the Offline Window area are erased. The logic drawn in the Logic Designer window in Engineer in the Offline Window area remain.
Page 188

Click the Ok button to save and exit from the window. In the logic diagram, select an element, then click in the drawing area to add it, click again to add a second box, and so on. 4-70 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 189

Optimization Summary. Changes also display when the FlexLogic Equation Editor is accessed. The logic diagram does not change. In the example shown, no lines were saved to free up space. Figure 4-81: Code optimization results C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-71...
Page 190

Type in the second text string box, or select any of the 32 previous searches from the drop-down list. Click the Search button. Any results display. The search applies to all tabs, not just the active tab. Double-click a search result to view the item. 4-72 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 191: Send File To And From Device

When a window opens, select the device to which you want to send the file, then click the Send button and confirm. The order codes must match. The file is sent to the live device. Any errors can be viewed in the log file at the prompt. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-73...
Page 192: Monitor Logic

(green box outline). In this case, the battery is weak and needs to be replaced. This can be viewed as the Replace Battery message on the front panel of the device and in the EnerVista software under Actual Values > Front Panel > Front Panel or Display/Keypad. 4-74 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 193: View Front Panel And Print Labels

To save the report and labels, click File > Save As, enter a file name, and select the FPR, JPG, or PDF format. Use the instructions in the second tab of the window to add the labels to the physical device. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-75...
Page 194: Generate Connectivity Report

View > Toolbar > Advanced Actions — Active when in Logic Designer. Toggles a toolbar to nudge, rotate, flip, or change the order of an element. View > Show Unused Pins — Enable to display unconnected pins. Disable to eliminate unconnected pins from the view, for example when printing. 4-76 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 195

File Information The text entered here displays at the bottom right of a diagram when printing, provided that the Show Title Block option is enabled. Note the option to change the logo from the GE logo to your company logo. Display The panel sets how the element boxes display.
Page 196

The software displays the color specified when an element is on. There is no color when the element is off. The software displays another color when the status cannot be determined and is unknown. 4-78 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 197

Options display for filtering, such as recording timing for Virtual Inputs and Outputs, but not Communications Status. 4.4.6.4 COMTRADE waveforms Waveform files are viewable in the EnerVista software. The preferences are unrelated to Engineer and are outlined in the UR Family Communications Guide. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-79...
Page 198: Toolbars

4.4.7.2 Token Toolbox Drawing Tools Draw a line. Click and drag to draw. Draw multiple joined lines. Click and drag for each line. Double-click to finish. 4-80 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 199

Input from another UR device. Teleprotection inputs/outputs and direct inputs/outputs are mutually exclusive and cannot be used simultaneously. Teleprotection inputs/outputs and direct inputs/outputs are mutually exclusive and cannot be used simultaneously. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-81...
Page 200

Tag-In can is used to reference an existing Tag-Out. It joins another diagram to a previous diagram. Boolean Tokens These symbols are used to create FlexLogic Equations. Use them as intermediate logic for the Virtual Output equations. The display can vary from that shown here. 4-82 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 201

Place a positive one shot and a negative one shot symbol in the Logic Designer diagram Place a timer in the Logic Designer diagram Elements These blocks configure properties of the element or use element operands as input to FlexLogic equations. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-83...
Page 202

Set the width of the selected components to the same width as the reference component Same Height Set the height of the selected components to the same height as the reference component 4-84 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 203

Front, Back Moves current components to the absolute front or back of all viewable layers Forward, Backward Moves current components on layer higher or lower than its original layer hierarchy C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 4-85...
Page 204

FLEXLOGIC DESIGN USING ENGINEER CHAPTER 4: INTERFACES 4-86 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 205

See page 5-107    REAL TIME See page 5-107   CLOCK  USER-PROGRAMMABLE See page 5-112   FAULT REPORT  OSCILLOGRAPHY See page 5-113   C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 206

  LATCHES  SETTINGS  SETTING GROUP 1 See page 5-188   GROUPED ELEMENTS   SETTING GROUP 2     SETTING GROUP 3   C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 207

    SETTINGS TEST MODE Range: Disabled, Isolated, Forcible   TESTING FUNCTION: Disabled See page 5-311 TEST MODE FORCING: Range: FlexLogic operand   See page 5-311 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 208: Overview

VTs, the secondary base quantity and secondary voltage setting is: Eq. 5-1 For wye-connected VTs, the primary and secondary base quantities are as before, but the secondary voltage setting (here a phase-to-ground value) is: Eq. 5-2 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 209: Introduction To Ac Sources

The same considerations apply to transformer winding 2. The protection elements require access to the net current for transformer protection, but some elements can need access to the individual currents from CT1 and CT2. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 210

“bank,” and all four are either current or voltage, as are channels 5, 6, 7, and 8. Channels 1, 2, 3 and 5, 6, 7 are arranged as phase A, B, and C respectively. Channels 4 and 8 are either another current or voltage. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 211: Product Setup

To reset the unit after a lost password: Email GE customer service at multilin.tech@ge.com with the serial number and using a recognizable corporate email account. Customer service provides a code to reset the relay to the factory defaults.
Page 212

 EVENTS: Disabled The C70 supports password entry from a local or remote connection. Local access is defined as access to settings or commands via the front panel. This includes both keypad entry and the RS232 port. Remote access is defined as access to settings or commands via any rear communications port. This includes both Ethernet and RS485 connections.
Page 213

When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the C70, the remote password must be used. If the connection is to the RS232 port of the front panel, the local password must be used.
Page 214

SETTINGS  PRODUCT SETUP  SECURITY  ACCESS SUPERVISION  ACCESS  ACCESS LEVEL See below   SUPERVISION  TIMEOUTS INVALID ATTEMPTS Range: 2 to 5 in steps of 1  BEFORE LOCKOUT: 3 5-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 215

INVALID ATTEMPTS BEFORE LOCKOUT The C70 provides a means to raise an alarm upon failed password entry. If password verification fails while accessing a password-protected level of the relay (either settings or commands), the FlexLogic operand is UNAUTHORIZED ACCESS asserted.
Page 216

The status of this timer updates every five seconds. 5.3.1.3 EnerVista security Enable the security management system The EnerVista security system allows an administrator to manage access privileges of multiple users of EnerVista. 5-12 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 217

If you force password entry by using this feature, ensure that you know the Administrator password. If you do not know the password and are locked out of the software, contact GE Grid Solutions for the default password of a UR device.
Page 218

The EnerVista security management system must be enabled (the Enable Security check box enabled) To modify user privileges: Select the Security > User Management item from the top menu to open the user management window. Locate the username in the User field. 5-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 219

This feature requires a CyberSentry software option. See the Order Codes section in chapter 2 for details. The EnerVista software provides the means to configure and authenticate the C70 access using either a server or the device. Access to functions depends on user role.
Page 220

When the "Device" button is selected, the C70 uses its local authentication database and not the RADIUS server to authenticate the user. In this case, it uses built-in roles (Administrator, Engineer, Supervisor, Operator, Observer, or Administrator and Supervisor when Device Authentication is disabled), as login accounts and the associated passwords are stored on the C70 device.
Page 221

For the Device > Settings > Product Setup > Supervisory option, the panel looks like the following. Figure 5-4: Supervisory panel For the Security panel, the following settings are available. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-17...
Page 222

Administrator is to re-enable Device authentication when Device authentication is disabled. To re-enable Device authentication, the Supervisor unlocks the device for setting changes, and then the Administrator can re- enable Device authentication. 5-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 223

Range: Administrator, Engineer, Supervisor,   None Operator, Factory (for factory use only), None  CHANGE LOCAL See page 5-20   PASSWORDS  SESSION See page 5-21   SETTINGS C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-19...
Page 224

• Observer — This role has read-only access to all C70 settings. This role allows unlimited concurrent access but it has no download access to any files on the device. Observer is the default role if no authentication has been done to the device.
Page 225

In Device authentication mode, the Observer role does not have a password associated with it. In Server authentication mode the Observer role requires a password. If you are locked out of the software, contact GE Grid Solutions for the default password. When using CyberSentry, the default password is "ChangeMe1#".
Page 226

RS232 and RS485 connections. The default value is 1 minute. GE recommends setting this value to at least 3 minutes for the following scenario: while connected to a CyberSentry device, with serial or USB cable connected to the front panel, and performing "Add Device to Offline Window" or an online/ offline comparison.
Page 227

In the EnerVista software, choose Server authentication and log in using the user name and password configured on the RADIUS server for Server authentication login. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-23...
Page 228

Clear Energy command (not applicable to all UR products) Clear Unauthorized Access command Clear Teleprotection Counters command (not applicable to all UR products) Clear All Relay Records command Role Log in 5-24 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 229: Display Properties

Enumeration Description Role Log off In addition to supporting syslog, a C70 with CyberSentry also saves the security events in two local security files, these being SECURITY_EVENTS.CSV and SETTING_CHANGES.LOG. Details on these files and how to retrieve them are available in the EnerVista software under Maintenance >...
Page 230

Some customers prefer very low currents to display as zero, while others prefer the current to display even when the value reflects noise rather than the actual signal. The C70 applies a cut-off value to the magnitudes and angles of the measured currents.
Page 231: Graphical Front Panel

Annunciator Editor and Single Line Diagram Editor can be open and active, then subsequently opened Rolling Mode and Home Page screens are read-only. Close the windows, then re-open the one required. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-27...
Page 232

Visual and audible signals are given when conditions return to normal, then the sequence returns to normal by pushing the RESET button. – The first annunciator page that contains an annunciator window that is in abnormal state – Annunciator page 1 5-28 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 233

Similarly, the display backlight intensity is lowered to a specified level; lower intensity extends the life of the display. Each rolling page displays for a few seconds; duration cannot be set. The path is Settings > Product Setup > Graphical Panel > Rolling Mode. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-29...
Page 234

Range: 1 to 10 in steps of 1 Default: 1 This setting specifies the number of rolling pages. During rolling mode, the graphical front panel displays pages from 1 to the selected number. 5-30 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 235

Metering Tab pushbutton on the graphical front panel. The Metering Editor is not used for these phasor diagrams. The figures show setup and table preview. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-31...
Page 236

A maximum of eight Status Inputs can be used per metering page, and 16 in all metering pages. Select the metering input from the drop-down list. The options reflect the FlexLogic operands applicable to the C70. They are inputs for all five metering pages, not just the current page.
Page 237

Set the font size to display on the graphical front panel. TEXT COLOR Range: 24-bit color selector Default: Black Set the text color to display in the specified cell. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-33...
Page 238

32-bit floating-point format per IEEE 754, otherwise, the input value is represented as per the IEEE standard. For example, 1234.56789 is represented as 1234.567871094, and 9876.54321 as 9876.54296875. 5-34 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 239

Settings > Product Setup > User-Programmable Self Tests (not shown). When the alarms are triggered, they display with a red background. An alarm is acknowledged by using the arrow keys on the graphical front panel then pressing the ENTER button. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-35...
Page 240

Up to 20 characters can be input as the name of each annunciator page. The number of pages depends on the Layout. The name displays for the Tab pushbutton on the graphical front panel. 5-36 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 241

ACTUAL (Configure) Range: Configure Default: Configure The Configure button becomes active when the CONTENT field is set to "Actual" or "Mixed." The window specifies the metering data to display. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-37...
Page 242

Avoid selecting condition operands that are likely to operate simultaneously but activate different pages, as only one page can be opened at a time. For example, do not select a single-line diagram page for breaker status open and select an annunciator page for a trip alarm. 5-38 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 243: Clear Relay Records

The Targets option displays error messages, such as wrong transceiver, similar to event record entries. 5.3.4 Clear relay records SETTINGS  PRODUCT SETUP  CLEAR RELAY RECORDS  CLEAR RELAY CLEAR USER REPORTS: Range: FlexLogic operand   RECORDS C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-39...
Page 244

Selected records can be cleared from user-programmable conditions with FlexLogic operands. Assigning user- programmable pushbuttons to clear specific records is a typical application for these commands. Since the C70 responds to rising edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.
Page 245

5.3.5.3 Ethernet network topology The C70 has three Ethernet ports. Each Ethernet port must belong to a different network or subnetwork. Configure the IP address and subnet to ensure that each port meets this requirement. Two subnets are different when the bitwise AND operation performed between their respective IP address and mask produces a different result.
Page 246

SCADA is provided through LAN2. P2 and P3 are connected to LAN2, where P2 is the primary channel and P3 is the redundant channel. In this configuration, P3 uses the IP and MAC addresses of P2. 5-42 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 247

LAN2, to which port 2 (P2) is connected, and communications with SCADA on LAN3, to which port 3 (P3) is connected. There is no redundancy. Figure 5-15: Multiple LANS, no redundancy C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-43...
Page 248

IP addresses and mask. Configure the network IP and subnet settings before configuring the routing settings. To obtain a list of all port numbers used, for example for audit purposes, contact GE technical support with substantiating information, such as the serial number and order code of your device.
Page 249

2 is performed. The delay in switching back ensures that rebooted switching devices connected to the C70, which signal their ports as active prior to being completely functional, have time to completely initialize themselves and become active. Once port 2 is active again, port 3 returns to standby mode.
Page 250

UR 7 redundancy Failover is selected for redundancy. 5.3.5.6 Parallel Redundancy Protocol (PRP) The C70 is provided with optional PRP capability. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
Page 251

Delete the default route by replacing the default gateway with the default value of 127.0.0.1. General conditions to be satisfied by static routes The following rules are validated internally: C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-47...
Page 252

Port 2 (IP address 10.1.2.2) connects the UR to LAN 10.1.2.0/24 and to the EnerVista software through Router2. Router2 has an interface on 10.1.2.0/24 and the IP address of this interface is 10.1.2.1. The configuration before release 7.10 was as follows: 5-48 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 253

 MODBUS PROTOCOL MODBUS SLAVE Range: 1 to 254 in steps of 1   ADDRESS: 254 MODBUS TCP PORT Range: 0 to 65535 in steps of 1  NUMBER(502): 502 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-49...
Page 254

0 disables Modbus over TCP/IP, meaning closes the Modbus TCP port. When the port number is changed to 0, the change takes effect when the C70 is restarted. When it is set to 0, use the front panel or serial port to communicate with the relay.
Page 255

Range: 0 to 65519 in steps of 1  DEST ADDRESS: 1 DNP CURRENT SCALE Range: 0.001, 0.01. 0.1, 1, 10, 100, 1000, 10000,  FACTOR: 1 100000, 1000000, 10000000, 100000000 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-51...
Page 256

 CONTROL POINTS: 0 DNP TCP CONNECTION Range: 10 to 7200 s in steps of 1  TIMEOUT: 120 s DNP EVENT TIME BASE: Range: UTC, LOCAL  LOCAL 5-52 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 257

DNP ADDRESS unique address to each DNP slave. The C70 can specify a maximum of five clients for its DNP connections. These are IP addresses for the controllers to which the C70 can connect. The settings follow. SETTINGS  PRODUCT SETUP  COMMUNICATIONS  DNP PROTOCOL  DNP NETWORK CLIENT ADDRESSES ...
Page 258

DNP TCP connection for greater than the time specified by this setting, the connection is aborted by the C70. This frees up the connection to be re-used by a client. For any change to take effect, restart the relay.
Page 259

60870-5-104 point lists must be in one continuous block, any points assigned after the first “Off” point are ignored. 5.3.5.12 IEC 61850 protocol The C70 is provided with optional IEC 61850 communications. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
Page 260

The maximum number of simultaneous clients supported by the UR family is five. EnerVista setup for IEC 61850 The EnerVista UR Setup software provides the interface to configure C70 settings for the IEC 61850 protocol. This section describes this interface. The software also supports import/export and merging of IEC 61850 Substation Configuration Language (SCL) files as documented in the UR Family Communications Guide.
Page 261

Figure 5-19: IEC 61850 panel Opening the IEC 61850 window while online causes the UR Setup software to retrieve and import an SCL file from the C70. This System Configuration Description (SCD) file contains all the settings in the UR at the time of the file request, both those that are mapped into the IEC 61850 information model (that is, the "public"...
Page 262

When the Save button is clicked in the online IEC 61850 window, UR Setup software prepares a configured IED description (CID) file containing all the settings of the UR and sends the CID file to the C70. Upon receipt, the C70 checks the CID file for correctness, going out of service, then back into service when the CID file is accepted.
Page 263

Default: TEMPLATE The value entered sets the IED name used by IEC 61850 for the C70. An IED name unique within the network must be entered for proper operation. Valid characters are upper and lowercase letters, digits, and the underscore (_) character.
Page 264

Range: status-only, direct-with-normal-security, sbo-with-normal-security Default: sbo-with-normal-security This setting specifies the control service that clients must use to control the TEST MODE FUNCTION of the C70. An "on" control to <LDName>/LLN0.Mod changes TEST MODE FUNCTION to Disabled, an "on-blocked" control changes it to Forcible, and a "test/blocked"...
Page 265

"2016-03-07 08:46." The text is clipped on the right if the line is longer than the available width. The next paragraphs explain how to do this setup. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-61...
Page 266

Figure 5-23: Menu for logical node If the insert option is selected, or the edit option is selected for other than the Master logical device, a logical device parameters edit dialog opens. 5-62 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 267

Each logical device inst name is required to be unique within the device, and it cannot be blank. Also, if the corresponding functional ldName setting is blank, the concatenation of the IED name and the logical device C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-63...
Page 268

The UR increments the value of paramRev by one whenever one or multiple setting changes occurs in one Modbus write request by any means (front panel, Modbus, or MMS) other than by SCL file 5-64 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 269

A v7.4 device can send an R-GOOSE message to another v7.4 device when both have R-GOOSE active as the protocol • A v7.4 device can send a GOOSE message to another v7.4 device when both have GOOSE active as the protocol C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-65...
Page 270

Navigate to Settings > Product Setup > Communications > IEC 61850 > GOOSE > TxGOOSE > TxGOOSE1 to access the settings for the first TxGOOSE. The settings and functionality for the others are similar. 5-66 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 271

Range: 0 to 129 VisibleString characters Default: TxGOOSE1 The entered value sets the goID value published in TxGOOSE1 messages, and can be used by subscribers to discriminate the TxGOOSE1 messages from other GOOSE messages. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-67...
Page 272

VID values of 0 and 1 are assigned by IEEE 802.1Q to other functions and are not to be used for GOOSE. 5-68 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 273

Also, Port 3 configuration in the CID file is ignored. The Port 3 ConnectedAP elements has no meaning, as ports 2 and 3 use the port 2 MAC address, IP address, and mask. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-69...
Page 274

(test field in edition 1.0 messages) are accepted only when the UR Test Mode Function setting is set to Forcible or Isolated. RxGOOSE messages can be received through any UR Ethernet port. 5-70 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 275

RxGOOSE1 messages. An entered address of zero disables RxGOOSE1. If the publisher is a UR series 7.3x device, the setting needs to match the value of the publisher’s TxGOOSE DST MAC setting. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-71...
Page 276

<GoCBName> is the name of the publishing control block. The C70 translates the ACSI format required for this setting to the MMS format used in GOOSE messages: <LDName>/LLN0$GO$<GoCBName> If the publisher is a UR 7.3x or 7.40 series device, <LDName> is the value of the publisher's Master functional ldName setting if that setting is not empty, otherwise it is the value of the publisher's IED NAME suffixed with "Master".
Page 277

7.40 UR Setup RxGOOSE Inputs pages. In this case the Member setting displays as the product-related name used by the publishing IED of the data object or data attribute, in standard SCSM format (e.g. Publisher1LD1/LLN0$ST$Off$stVal). C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-73...
Page 278

(supported in version 7.40 and later). When the file format is SCD, the system lists all IEDs inside the SCD file and lets the user select the ones to add. The figure shows a selection being made by importing a CID file using the Add IED function. 5-74 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 279

This setting selects the logic state for the RxGOOSE Boolean1 FlexLogic operand if the UR has just completed startup and the selected RxGOOSE has not yet received a message, or the selected RxGOOSE has lost its connectivity with the publisher. The following choices are available: C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-75...
Page 280

This setting selects the GOOSE message containing the value that drives the RxGOOSE DPS1 FlexLogic operand. If set to None, the RxGOOSE DPS1 FlexLogic operand assumes its default state. 5-76 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 281

(supported in version 7.40 and later). When the file format is SCD, the system lists all IEDs inside the SCD file and lets the user select the ones to add. Figure 5-31: RxGOOSE Analog Inputs panel There are 32 RxGOOSE analog inputs. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-77...
Page 282

Range: 0.000 to 1000000000.000 in steps of 0.001 Default: 1.000 This setting specifies the per-unit base value for other C70 features to use with the RxGOOSE Analog1 operand. A FlexElement for instance subtracts two quantities after converting their values to integers rescaled to a common base, the common base being the largest of the base values of the two quantities.
Page 283

RptEna attribute is false. Buffered and unbuffered reports Navigate to Settings > Product Setup > Communications > IEC 61850 > Reports > Buffered Reports or Unbuffered Reports. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-79...
Page 284

Also, the control block can be configured to send integrity reports containing the present value of all members either on demand from the client or periodically. A TCP handshaking mechanism causes messages that are not read and acknowledged by the client to be retransmitted. 5-80 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 285

Control blocks and data sets can be pre-configured by sending the C70 a CID file. See the UR Family Communications Guide for details. EnerVista UR Setup also can be used to select the data set members and to pre-configure the control blocks.
Page 286

This setting selects the data set whose members' status is reported in Unbuffered Report1 messages using the UR Setup software designator for the data set. The IEC 61850 name of the data sets are configured in the Datasets panel, as described later. 5-82 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 287

DataSets Navigate to Settings > Product Setup > Communications > IEC 61850 > DataSets. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-83...
Page 288

The DataSet name is not copied or pasted. In short, use this feature to copy a DataSet Member setting and paste it into another Member setting, a text file, or Word, as examples. 5-84 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 289

Select the member from the drop-down list. Or right-click an entry to copy, paste, delete, or insert. Product setup Navigate to Settings > Product Setup > Communications > IEC 61850 > Product Setup. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-85...
Page 290

Deadband parameters of measured values related to the Energy metering are configured here. Real Time Clock Navigate to Settings > Product Setup > Communications > IEC 61850 > Product Setup > Real Time Clock. 5-86 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 291

However, a tabulation of the analog values and their associated deadband setting can be found in the UR Family Communications Guide. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-87...
Page 292

Auxiliary voltage — 275 x auxiliary VT ration setting • Power (real, reactive, apparent, 3-phase, and 1-phase) — 4 × phase CT primary setting × 1.5 × VT Secondary setting × VT ratio setting 5-88 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 293

While the selected operand is asserted, Bkr0XCBR1.Loc.stVal is true and IEC 61850 commands to BkrCSWI1.Pos and Bkr0XCBR1.Pos are not accepted, and a Negative Response (-Rsp) is issued with the REASON CODE of Blocked-by- switching-hierarchy. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-89...
Page 294

Bkr0XCBR1.BlkOpn.ctlVal signal on the Breaker Control Logic (Sheet 1 of 2) diagram in the Settings > System Setup section later. This signal when true blocks breaker 1 trip control while the operand selected by setting XCBR1 ST.LOC OPERAND is not active. 5-90 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 295

Navigate to Settings > Product Setup > Communications > IEC 61850 > System Setup > Switches > Switch 1 to access the settings that configure the IEC 61850 protocol interface with the first disconnect switch control and status monitoring element. The settings and functionality for the others are similar. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-91...
Page 296

> System Setup section later. These signals force a disconnect switch trip or close control while the operand selected by setting XSWI1 ST.LOC OPERAND is not active. "sbo" here is select-before-operate. Enhanced security means that the C70 reports to the client the disconnect switch 1 position the end of the command sequence.
Page 297

Navigate to Settings > Product Setup > Communications > IEC 61850 > Control Elements > Setting Groups to access the setting that configures the IEC 61850 setting group commands. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-93...
Page 298

Navigate to Settings > Product Setup > Communications > IEC 61850 > Settings for Commands to access the settings that configure the IEC 61850 protocol interface for record clear commands. Figure 5-43: Commands panel 5-94 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 299

This setting selects the control model clients must use to successfully control the command CLEAR FAULT REPORTS. "sbo" here is select-before-operate. Enhanced security means that the C70 reports to the client the breaker 1 position at the end of the command sequence.
Page 300

Navigate to Settings > Product Setup > Communications > IEC 61850 > GGIO > GGIO2 to access the settings that configure the IEC 61850 protocol interface for Virtual Input commands. Figure 5-45: GGIO2 panel 5-96 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 301

<LDName>/GGIO4.AnIn01.instMag.f. The value of the FlexAnalog operand is converted automatically to the format and scaling required by the standard, that is to say primary amperes, primary volts, and so on. See Appendix A for a list of FlexAnalog operands. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-97...
Page 302

File transfer by IEC 61850 The C70 supports file transfer by IEC 61850. The approach is as follows, using the SISCO AX-S4 61850 client software as an example. In the AX-S4 61850 Explorer window, click the Tools menu and access the SISCO File Transfer Utility.
Page 303

NUMBER(80): 80 The C70 contains an embedded web server and can display pages in a web browser. The web pages are organized as a series of menus that can be accessed starting at the C70 “Main Menu.” Web pages are read-only and are available showing DNP and IEC 60870-5-104 points lists, Modbus registers, event records, fault reports, and so on.
Page 304

NUMBER: 0 The Trivial File Transfer Protocol (TFTP) can be used to transfer files from the C70 over a network. The C70 operates as a TFTP server. TFTP client software is available from various sources, including Microsoft Windows NT. The dir.txt file obtained from the C70 contains a list and description of all available files, for example event records and oscillography.
Page 305

COMMUNICATIONS  PROTOCOL connected to a maximum of two masters (usually either an RTU or a SCADA master station). Since the C70 maintains two sets of IEC 60870-5-104 data change buffers, ideally no more than two masters actively communicate with the C70 at one time.
Page 306

0.0.0.0 The C70 can specify a maximum of five clients for its IEC 104 connections. These are IP addresses for the controllers to which the C70 can connect. A maximum of two simultaneous connections are supported at any given time.
Page 307

PTP, or SNTP, its time is overwritten by these three sources, if any of them is active. If the synchronization timeout occurs and none of IRIG-B, PTP, or SNTP is active, the C70 sets the invalid bit in the time stamp of a time-tagged message.
Page 308

The configuration menu allows a maximum of four ASDUs containing measurands. Measurands are sent as a response to Class 2 requests, which are cyclic requests coming from the master. 5-104 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 309

FlexAnalog operands. The measurands sent are voltage, current, power, power factor, and frequency. If any other FlexAnalog is chosen, the C70 sends 0 instead of its value. Note that the power is transmitted in KW, not W. Measurands are transmitted as ASDU 3 or ASDU 9 (type identification value set to measurands I, respectively measurands II).
Page 310

Commands are received as General Command (Type Identification 20). The user can configure the action to perform when an ASDU command comes. A list of available mappings is provided on the C70. This includes 64 virtual inputs (see the following table). The ON and OFF for the same ASDU command can be mapped to different virtual inputs.
Page 311: Modbus User Map

ADDRESS The UR Family Communications Guide outlines the Modbus memory map. The map is also viewable in a web browser; enter the IP address of the C70 in a web browser and click the option. 5.3.7 Real-time clock 5.3.7.1 Menu SETTINGS ...
Page 312

Setup for IRIG-B is illustrated in the Installation chapter. For the Other protocols, whenever a time synchronization message is received through any of the active protocols, the C70 clock updates. However, given that IEC 60870-5-103, IEC 60870-5-104, Modbus, and DNP are low-accuracy time synchronization methods, avoid their use for synchronization when better accuracy time protocols, such as IRIG-B and PTP, are active in the system.
Page 313

See the Order Codes section in chapter 2 for details. The C70 supports the Precision Time Protocol (PTP) specified in IEEE Std 1588 2008 using the Power Profile (PP) specified in IEEE Std C37.238 2011. This enables the relay to synchronize to the international time standard over an Ethernet network that implements PP.
Page 314

Ethernet switch it is connected to is 9000 ns and that the delay from the switch to the relay is 11000 ns, then the mean delay is 10000 ns, and the path delay asymmetry is 11000 - 10000 = +1000 ns. 5-110 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 315

C70 clock is closely synchronized with the SNTP/ NTP server. It takes up to two minutes for the C70 to signal an SNTP self-test error if the server is offline.
Page 316: User-programmable Fault Report

The user programmable record contains the following information: the user-programmed relay name, detailed firmware revision (x.xx, for example) and relay model (C70), the date and time of trigger, the name of pre-fault trigger (a specific FlexLogic operand), the name of fault trigger (a specific FlexLogic operand), the active setting group at pre-fault trigger, the active setting group at fault trigger, pre-fault values of all programmed analog channels (one cycle before pre-fault trigger), and fault values of all programmed analog channels (at the fault trigger).
Page 317: Oscillography

The following table provides sample RECORDS  OSCILLOGRAPHY configurations with corresponding cycles/record. The minimum number of oscillographic records is three. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-113...
Page 318

To populate quickly the rows in the Offline Window, use Ctrl C/V to copy/paste, or click then double-click a row to display a quick selection window. Figure 5-49: Quick selection window 5-114 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 319: Data Logger

Range: Off, any FlexAnalog/actual value parameter  See Appendix A for list DATA LOGGER CONFIG: Range: Not applicable - shows computed data only  0 CHNL x 0.0 DAYS C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-115...
Page 320

— This display presents the total amount of time that the Data Logger can record the channels not DATA LOGGER CONFIG selected to “Off” without overwriting old data. 5-116 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 321: User-programmable Leds

LEDs. This test checks for hardware failures that lead to more than one LED being turned off from a single logic point. This stage can be interrupted at any time. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-117...
Page 322

LED TEST CONTROL setting. The control pulses must last at least 250 ms to take effect. The following diagram explains how the test is executed. Figure 5-50: LED test sequence 5-118 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 323

LED column 3 — User-programmable LEDs 13 through 24 • LED column 4 — User-programmable LEDs 25 through 36 • LED column 5 — User-programmable LEDs 37 through 48 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-119...
Page 324

LED PHASE B EVENT CAUSE LED 7 Orange Event Cause LED 8 LED PHASE C EVENT CAUSE LED 8 Orange Event Cause LED 9 LED NEUTRAL/GROUND EVENT CAUSE LED 9 Orange 5-120 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 325: User-programmable Self Tests

These are user-programmable and can be used for various applications such as performing an LED test, switching setting groups, and invoking and scrolling though user-programmable displays. The location of the control pushbuttons are shown in the following figures. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-121...
Page 326

CHAPTER 5: SETTINGS Figure 5-51: Control pushbuttons (enhanced front panel) An additional four control pushbuttons are included on the standard front panel when the C70 is ordered with the 12 user- programmable pushbutton option. Figure 5-52: Control pushbuttons (standard front panel) Control pushbuttons are not typically used for critical operations and are not protected by the control password.
Page 327: User-programmable Pushbuttons

 EVENTS: Disabled The C70 is provided with this optional feature, specified as an option at the time of ordering. Using the order code for your device, see the order codes in chapter 2 for details. User-programmable pushbuttons provide an easy and error-free method of entering digital state (on, off) information. The number depends on the front panel ordered.
Page 328

Figure 5-55: User-programmable pushbuttons (standard front panel) Figure 5-56: User-programmable pushbuttons (graphical front panel) Front panel pushbuttons and LEDs can be custom labelled as outlined in the Front Panel Labelling section in the previous chapter. 5-124 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 329

PUSHBUTTON 1 FUNCTION “Disabled,” the pushbutton is not active and the corresponding FlexLogic operands (both “On” and “Off”) are de-asserted. If set to "Latched," the pushbutton remains on until reset. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-125...
Page 330

"Latched" mode the off message displays when the user-programmable pushbutton becomes deactivated. When set to "Normal", the duration the message displays is as specified by the setting. FLASH MESSAGE TIME 5-126 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 331

— If this setting is enabled, each user-programmable pushbutton state change is logged as an PUSHBUTTON 1 EVENTS event into the event recorder. The figures show the user-programmable pushbutton logic. Figure 5-57: User-programmable pushbutton logic (Sheet 1 of 2) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-127...
Page 332: Flex State Parameters

The state bits can be read out in the “Flex States” register array beginning at Modbus address 0900h. Sixteen states are packed into each register, with the lowest-numbered state in the lowest-order bit. Sixteen registers accommodate the 256 state bits. 5-128 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 333: User-definable Displays

When this type of entry occurs, the sub-menus are automatically configured with the proper content—this content can be edited subsequently. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-129...
Page 334

If the parameters for the top line and the bottom line items have the same units, then the unit is displayed on the bottom line only. The units are only displayed on both lines if the units specified both the top and bottom line items are different. 5-130 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 335: Direct Inputs And Outputs

All UR-series IEDs in a ring need to have unique numbers assigned. The IED ID is used to identify the sender of the direct input and output message. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-131...
Page 336

DIRECT I/O DATA RATE setting applies to a C70 with dual-channel communication cards and allows crossing DIRECT I/O CHANNEL CROSSOVER over messages from channel 1 to channel 2. This places all UR-series IEDs into one direct input and output network regardless of the physical media of the two communication channels.
Page 337

DIRECT I/O CH2 RING CONFIGURATION: “Yes” For UR-series IED 2: DIRECT OUTPUT DEVICE ID: “2” DIRECT I/O CH1 RING CONFIGURATION: “Yes” DIRECT I/O CH2 RING CONFIGURATION: “Yes” For UR-series IED 3: C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-133...
Page 338

A permissive pilot-aided scheme can be implemented in a two-ring configuration, shown as follows (IEDs 1 and 2 constitute a first ring, while IEDs 2 and 3 constitute a second ring). 5-134 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 339

In this application, apply the following settings. For UR-series IED 1: DIRECT OUTPUT DEVICE ID: “1” DIRECT I/O CH1 RING CONFIGURATION: “Yes” DIRECT I/O CH2 RING CONFIGURATION: “Yes” For UR-series IED 2: C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-135...
Page 340

EVENTS: Disabled The C70 checks integrity of the incoming direct input and output messages using a 32-bit CRC. The CRC alarm function is available for monitoring the communication medium noise by tracking the rate of messages failing the CRC check. The monitoring function counts all incoming messages, including messages that failed the CRC check.
Page 341: Teleprotection

 EVENTS: Disabled The C70 checks integrity of the direct input and output communication ring by counting unreturned messages. In the ring configuration, all messages originating at a given device should return within a pre-defined period of time. The unreturned messages alarm function is available for monitoring the integrity of the communication ring by tracking the rate of unreturned messages.
Page 342

5.4 Remote resources 5.4.1 Remote resources configuration When the C70 is ordered with a process card module as a part of HardFiber system, an additional Remote Resources menu tree is available in the EnerVista software to allow configuration of the HardFiber system.
Page 343

Bricks. Remote resources settings configure the point-to-point connection between specific fiber optic ports on the C70 process card and specific Brick. The relay is then configured to measure specific currents, voltages and contact inputs from those Bricks, and to control specific outputs.
Page 344: System Setup

 VOLTAGE BANK F5 PHASE VT F5 Range: Wye, Delta   CONNECTION: Wye PHASE VT F5 Range: 25.0 to 240.0 V in steps of 0.1  SECONDARY: 66.4 V 5-140 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 345: Power System

The AC signal used is prioritized based on the AC inputs configured for the signal source. Phase voltages takes precedence, followed by auxiliary voltage, then phase currents, and finally ground current. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-141...
Page 346: Signal Sources

“Disabled” only in unusual circumstances; consult GE Grid Solutions for special variable- FREQUENCY TRACKING frequency applications. The frequency tracking feature functions only when the C70 is in the “Programmed” mode. If the C70 is “Not Programmed,” then metering values are available but can exhibit significant errors. 5.5.3 Signal sources SETTINGS ...
Page 347

CT/VT module 3 B30, B90, C70, F35, N60, T35 8 CTs 4 CTs, 4 VTs 4 CTs, 4 VTs C60, D60, G30, G60, L30, L90, M60, T60 not applicable C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-143...
Page 348: Breakers

 BREAKER 1 BREAKER 1 Range: Disabled, Enabled  FUNCTION: Disabled  BREAKER1 PUSH BUTTON Range: Disabled, Enabled  CONTROL: Disabled BREAKER 1 TAGGING: Range: Disabled, Enabled  Disabled 5-144 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 349

For greater security in determination of the breaker position, both the 52/a and 52/b auxiliary contacts are used with reporting of the discrepancy between them. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-145...
Page 350

— This setting selects an operand, usually an external contact input connected to a breaker alarm BREAKER 1 EXT ALARM reporting contact. While the selected operand is active, the operand is activated. BREAKER 1 TROUBLE 5-146 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 351

If this setting is set to Off, the racked status is not considered. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-147...
Page 352

SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-68: Dual breaker control logic (Sheet 1 of 3) 5-148 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 353

CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-69: Dual breaker control logic (Sheet 2 of 3) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-149...
Page 354: Disconnect Switch Control

FUNCTION: Disabled SWITCH 1 NAME: Range: up to six alphanumeric characters  SW 1 SWITCH 1 MODE: Range: 3-Pole, 1-Pole  3-Pole SWITCH 1 OPEN: Range: FlexLogic operand  5-150 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 355

— This setting selects “3-Pole” mode, where disconnect switch poles have a single common auxiliary SWITCH 1 MODE switch, or “1-Pole” mode where each disconnect switch pole has its own auxiliary switch. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-151...
Page 356

— This setting specifies the delay interval during which a disagreement of status among the pole SWITCH 1 ALARM DELAY position tracking operands do not declare a pole disagreement. This allows for non-simultaneous operation of the poles. 5-152 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 357

SYSTEM SETUP IEC 61850 functionality is permitted when the C70 is in “Programmed” mode and not in local control mode. The switch element has direct hard-coded connections to the IEC 61850 model as shown in the logic diagrams. This allows remote open/close operation of each switch, using either CSWI or XSWI IEC 61850 logical nodes.
Page 358

SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-72: Disconnect switch control status logic (sheet 2 of 3) 5-154 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 359: Flexcurves

FlexCurve, enter the reset and operate times (using the keys) for each selected pickup point (using the VALUE up/down keys) for the required protection curve (A, B, C, or D). MESSAGE C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-155...
Page 360

The recloser curve configuration window shown here appears when the Initialize From setting in the EnerVista software is set to “Recloser Curve” and the Initialize FlexCurve button is clicked. 5-156 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 361

MRT and from then onwards the operating time remains at 200 ms. Figure 5-75: Composite recloser curve with HCT disabled With the HCT feature enabled, the operating time reduces to 30 ms for pickup multiples exceeding eight times pickup. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-157...
Page 362

Configuring a composite curve with an increase in operating time at increased pickup multiples is not allowed. If this is attempted, the EnerVista software generates an error message and discards the proposed changes. 5.5.6.5 Standard recloser curves The following graphs display standard recloser curves available for the C70. Figure 5-77: Recloser curves GE101 to GE106 5-158...
Page 363

CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-78: Recloser curves GE113, GE120, GE138, and GE142 Figure 5-79: Recloser curves GE134, GE137, GE140, GE151, and GE201 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-159...
Page 364

SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-80: Recloser curves GE131, GE141, GE152, and GE200 Figure 5-81: Recloser curves GE133, GE161, GE162, GE163, GE164, and GE165 5-160 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 365

CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-82: Recloser curves GE116, GE117, GE118, GE132, GE136, and GE139 Figure 5-83: Recloser curves GE107, GE111, GE112, GE114, GE115, GE121, and GE122 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-161...
Page 366: Flexlogic

FlexLogic. In general, the system receives analog and digital inputs that it uses to produce analog and digital outputs. The figure shows major subsystems of a generic UR-series relay involved in this process. 5-162 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 367

Figure 5-85: UR architecture overview The states of all digital signals used in the C70 are represented by flags (or FlexLogic operands, which are described later in this section). A digital “1” is represented by a set flag. Any external contact change-of-state can be used to block an element from operating, as an input to a control feature in a FlexLogic equation, or to operate a contact output.
Page 368

The following table lists the operands available for the relay. The operands can be viewed online by entering the IP address of the relay in a web browser and accessing the Device Information Menu. 5-164 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 369

Automatic voltage regulator 1 issued an open command AVR 1 OPEN DPO Open command of automatic voltage regulator 1 dropped out AVR 2 to 3 Same set of operands as shown for AVR 1 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-165...
Page 370

Breaker failure 1 timer 3 is operated BKR FAIL 1 TRIP OP Breaker failure 1 trip is operated BKR FAIL 2 to 3 Same set of operands as shown for BKR FAIL 1 5-166 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 371

Digital counter 1 output is ‘equal to’ comparison value Counter 1 LO Digital counter 1 output is ‘less than’ comparison value Counter 2 to 8 Same set of operands as shown for Counter 1 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-167...
Page 372

Non-volatile latch 1 is ON (Logic = 1) Non-volatile latches LATCH 1 OFF Non-volatile latch 1 is OFF (Logic = 0) LATCH 2 to 16 Same set of operands as shown for LATCH 1 5-168 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 373

Same set of operands as shown for NTRL CUR 1 ELEMENT: NTRL DIR OC1 FWD Neutral directional overcurrent 1 forward has operated Neutral directional NTRL DIR OC1 REV Neutral directional overcurrent 1 reverse has operated overcurrent C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-169...
Page 374

PHASE TOC1 I2t RST All phases I t accumulated energy dropped below level per reset curve PHASE TOC2 I2t RST All phases I t accumulated energy dropped below level per reset curve 5-170 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 375

Delta connected VT. SRC2 VT FUSE FAIL to SRC6 Same set of operands as shown for SRC1 VT FF C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-171...
Page 376

Trip bus TRIP BUS 1 OP Asserted when the trip bus 1 element operates TRIP BUS 2 to 6 Same set of operands as shown for TRIP BUS 1 5-172 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 377

Cont Op 72 VOff (does not appear unless ordered) INPUTS/OUTPUTS: DIRECT INPUT 1 On Flag is set, logic=1 ↓ ↓ Direct inputs DIRECT INPUT 32 On Flag is set, logic=1 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-173...
Page 378

Asserted when user-programmable LED 1 is on User-programmable LEDs Enhanced and standard front panels LED USER 2 to 48 The operand above is available for user-programmable LEDs 2 through 48 5-174 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 379

Any device settings changed over any available interface; operand is asserted for at least one second and then self-reset TEMPERATURE TEMP MONITOR Asserted while the ambient temperature is greater than the maximum MONITOR operating temperature (80°C) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-175...
Page 380

‘1’ 2 to 16 all inputs are ‘1’ 2 to 16 all inputs are ‘0’ NAND 2 to 16 any input is ‘0’ only one input is ‘1’ 5-176 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 381: Flexlogic Rules

If this rule is broken, a syntax error is declared. 5.6.3 FlexLogic evaluation Each equation is evaluated in the ascending order in which the parameters have been entered. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-177...
Page 382: Flexlogic Example

H1 (that is, contact output H1). Therefore, the required logic can be implemented with two FlexLogic equations with outputs of virtual output 3 and virtual output 4, shown as follows. 5-178 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 383

It is generally easier to start at the output end of the equation and work back towards the input, as shown in the following steps. It is also recommended C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-179...
Page 384

The result of this process is shown in the figure, which is compared to the logic for virtual output 3 diagram as a check. 5-180 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 385

Now check that the selection of parameters produce the required logic by converting the set of parameters into a logic diagram. The result is shown in the figure, which is compared to the logic for virtual output 4 diagram as a check. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-181...
Page 386

Always test the logic after it is loaded into the relay, in the same way as has been used in the past. Testing can be simplified by placing an "END" operator within the overall set of FlexLogic equations. The equations are evaluated up 5-182 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 387: Flexlogic Equation Editor

Range: Off, any analog actual value parameter  FLEXELEMENT 1 INPUT Range: SIGNED, ABSOLUTE  MODE: SIGNED FLEXELEMENT 1 COMP Range: LEVEL, DELTA  MODE: LEVEL FLEXELEMENT 1 Range: OVER, UNDER  DIRECTION: OVER C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-183...
Page 388

FLEXELEMENT 1 +IN this setting is set to “Off.” For proper operation of the element, at least one input must be selected. Otherwise, the element does not assert its output operands. 5-184 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 389

Figure 5-94: FlexElement direction, pickup, and hysteresis In conjunction with the setting, the element can be programmed to provide two extra FLEXELEMENT 1 INPUT MODE characteristics, as shown in the following figure. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-185...
Page 390

(Brk X Arc Amp A, B, and C) DCmA BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configured under the +IN and –IN inputs DELTA TIME BASE = 1 µs 5-186 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 391: Non-volatile Latches

LATCH 1 TYPE — If asserted, the specified FlexLogic operands 'sets' Latch 1. LATCH 1 SET — If asserted, the specified FlexLogic operand 'resets' Latch 1. LATCH 1 RESET C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-187...
Page 392: Grouped Elements

See below     NEUTRAL CURRENT See page 5-204    GROUND CURRENT See page 5-216    NEGATIVE SEQUENCE See page 5-219   CURRENT 5-188 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 393: Phase Current

 UNBALANCE 3 5.7.3.2 Inverse TOC curve characteristics The inverse time overcurrent curves used by the time overcurrent elements are the IEEE, IEC, GE Type IAC, and I t standard curve shapes. This allows for simplified coordination with downstream devices.
Page 394

3.514 1.471 0.899 0.654 0.526 0.450 0.401 0.368 0.345 16.179 7.028 2.942 1.798 1.308 1.051 0.900 0.802 0.736 0.689 32.358 14.055 5.885 3.597 2.616 2.103 1.799 1.605 1.472 1.378 5-190 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 395

1.992 1.712 1.535 1.411 1.319 1.247 1.188 0.60 10.317 6.017 3.781 2.988 2.568 2.302 2.117 1.978 1.870 1.782 0.80 13.755 8.023 5.042 3.984 3.424 3.070 2.822 2.637 2.493 2.376 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-191...
Page 396

IAC curve shape IAC Extreme Inverse 0.0040 0.6379 0.6200 1.7872 0.2461 6.008 IAC Very Inverse 0.0900 0.7955 0.1000 –1.2885 7.9586 4.678 IAC Inverse 0.2078 0.8630 0.8000 –0.4180 0.1947 0.990 5-192 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 397

0.434 0.419 0.409 0.401 0.394 10.0 1.431 0.948 0.699 0.613 0.569 0.542 0.524 0.511 0.501 0.493 t curves The I t curves are derived as follows: Eq. 5-10 where C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-193...
Page 398

T = Operate Time (in seconds) TDM = Multiplier setting I = Input Current = Pickup Current setting pickup = Reset Time in seconds (assuming energy capacity is 100% and RESET: Timed) RESET 5-194 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 399

CHAPTER 5: SETTINGS GROUPED ELEMENTS Recloser curves The C70 uses the FlexCurve feature to facilitate programming of 41 recloser curves. See the FlexCurves settings section earlier in this chapter for details. 5.7.3.3 Phase time overcurrent (ANSI 51P, IEC PTOC) SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  PHASE CURRENT  PHASE TOC1(6) ...
Page 400

— Selects the signal source for the phase time overcurrent protection element. SIGNAL SOURCE — Selects how phase current input quantities are interpreted by the C70. Inputs can be selected as fundamental INPUT phasor magnitudes or total waveform RMS magnitudes as required by the application.
Page 401

Range: FlexLogic operand   PHASE IOC1 BLOCK C: Range: FlexLogic operand  PHASE IOC1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset PHASE IOC1 Range: Disabled, Enabled  EVENTS: Disabled C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-197...
Page 402

Range: 0.004 to 3.000 pu in steps of 0.001  THRESHOLD: 0.700 pu PHASE DIR 1 BLOCK Range: No, Yes  WHEN V MEM EXP: No PHASE DIR 1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset 5-198 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 403

(phase current) and the polarizing signal (the line voltage, shifted in the leading direction by the characteristic angle, ECA). The table shows the operating and polarizing signals used for phase directional control. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-199...
Page 404

When set to "No," the directional element allows tripping of phase overcurrent elements under directional control. — This setting enables and disables the logging of phase directional overcurrent events in the PHASE DIR 1 EVENTS sequence of events recorder. 5-200 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 405

Range: –0.1000 to 0.1000 in steps of 0.0001  FACTOR A: 0.0000  CUR UNBALCE 1 INHNT Range: –0.1000 to 0.1000 in steps of 0.0001  FACTOR C: 0.0000 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-201...
Page 406

Subtracting an adequate portion of the total bank current in a given phase compensates for this inherent unbalance current. 5-202 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 407

Setting the compensating factors to zero effectively disables the compensation and turns this feature into a plain overcurrent element responding to the differential (split phase) currents. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-203...
Page 408: Neutral Current

5.7.4 Neutral current 5.7.4.1 Menu SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  NEUTRAL CURRENT  NEUTRAL CURRENT  NEUTRAL TOC 1 See below     5-204 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 409

  UNBALANCE 3 The C70 contains protection elements for neutral time overcurrent (ANSI device 51G), neutral instantaneous overcurrent (ANSI device 50G), and neutral current unbalance (ANSI device 60N). A maximum of six ground time overcurrent and 12 ground instantaneous overcurrent elements are available, dependent on the CT/VT modules ordered with the relay. Three neutral current unbalance elements are available.
Page 410

— This setting selects the signal source for the neutral time overcurrent protection element. NEUTRAL TOC1 SIGNAL SOURCE — This setting selects how neutral current input quantities are interpreted by the C70. Inputs can be NEUTRAL TOC1 INPUT selected as fundamental phasor magnitudes or total waveform RMS magnitudes as required by the application.
Page 411

SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  NEUTRAL CURRENT  NEUTRAL DIRECTIONAL OC1  NEUTRAL NEUTRAL DIR OC1 Range: Disabled, Enabled   DIRECTIONAL OC1 FUNCTION: Disabled C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-207...
Page 412

K to zero. This facilitates better response to high-resistance faults when the unbalance is very small and there is no danger of excessive CT errors as the current is low. 5-208 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 413

REV LA = 80° (reverse limit angle = the ± angular limit with the ECA for operation) Take the bias into account when using the neutral directional overcurrent element to directionalize other protection elements. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-209...
Page 414

For example, if using an autotransformer neutral current as a polarizing source, ensure that a reversal of the ground current does not occur for a high-side fault. Assume that the 5-210 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 415

— This setting defines the pickup level for the overcurrent unit of the element in the reverse NEUTRAL DIR OC1 REV PICKUP direction. When selecting this setting, keep in mind that the design uses a positive-sequence restraint technique for the “Calculated 3I0” mode of operation. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-211...
Page 416

Range: 0.001 to 5.000 pu in steps of 0.001  STG 1 PKP: 0.020 pu NTRL CUR UNBALCE 1 Range: 0.0 to 10.% in steps of 0.1  STG 1 SLOPE: 2.0% 5-212 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 417

The relay allows manual setting of the inherent unbalance factor or automatic setting via a dedicated command. For more information, see the Application of Settings chapter. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-213...
Page 418

Setting the compensating factor to zero effectively disables the compensation. If further the slope is set to zero as well, this feature becomes a plain overcurrent element responding to the neutral split-phase current. 5-214 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 419

At minimum this function shall be blocked when the two banks are not paralleled. Note that when unblocked, the function becomes operational after five cycles of intentional delay. High-set instantaneous protection on energization can be provided by a separate instantaneous overcurrent function. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-215...
Page 420: Ground Current

 GROUND CURRENT  GROUND TOC1 See below      GROUND TOC6    GROUND IOC1 See page 5-218     GROUND IOC12   5-216 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 421

— This setting selects the signal source for the ground time overcurrent protection element. GROUND TOC1 SIGNAL SOURCE — This setting selects how ground current input quantities are interpreted by the C70. Inputs can be GROUND TOC1 INPUT selected as fundamental phasor magnitudes or total waveform RMS magnitudes as required by the application.
Page 422

These elements measure the current that is connected to the ground channel of a CT/VT module. The conversion range of a standard channel is from 0.02 to 46 times the CT rating. 5-218 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 423: Negative Sequence Current

Range: 0.00 to 600.00 in steps of 0.01  TD MULTIPLIER: 1.00 NEG SEQ TOC1 Range: Instantaneous, Timed  RESET: Instantaneous NEG SEQ TOC1 BLOCK: Range: FlexLogic operand  C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-219...
Page 424

DELAY: 0.00 s NEG SEQ IOC1 BLOCK: Range: FlexLogic operand  NEG SEQ IOC1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset NEG SEQ IOC1 Range: Disabled, Enabled  EVENTS: Disabled 5-220 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 425

Range: 0.015 to 30.000 pu in steps of 0.005  PICKUP: 0.050 pu NEG SEQ DIR OC1 REV Range: 40 to 90° in steps of 1  LIMIT ANGLE: 90° C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-221...
Page 426

CT errors, since the current is low. The operating quantity depends on the way the test currents are injected into the C70. For single phase injection = ⅓ × (1 – K) × I •...
Page 427

If this is the intent, the offset impedance shall not be larger than the negative-sequence impedance of the protected circuit. Practically, it is several times smaller. Enter the offset impedance in secondary ohms. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-223...
Page 428: Breaker Failure (ansi 50bf)

SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  BREAKER FAILURE  BREAKER FAILURE 1(3)  BREAKER FAILURE 1 BF1 FUNCTION: Range: Disabled, Enabled  Disabled  BF1 MODE: Range: 3-Pole, 1-Pole  3-Pole 5-224 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 429

Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.000 s BF1 TRIP DROPOUT Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.000 s BF1 TARGET: Range: Self-reset, Latched, Disabled  Self-reset C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-225...
Page 430

1, 2, and 3, which are intended to have delays increasing with increasing timer numbers. These delayed paths are individually enabled to allow for maximum flexibility. 5-226 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 431

Figure 5-116: Breaker failure main path sequence The current supervision elements reset in less than 0.7 of a power cycle for any multiple of pickup current as shown in the following figure. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-227...
Page 432

In microprocessor relays this time is not significant. In C70 relays, which use a Fourier transform, the calculated current magnitude ramps-down to zero one power frequency cycle after the current is interrupted, and this lag needs to be included in the overall margin duration, as it occurs after current interruption.
Page 433

Upon operation of the breaker failure element for a single pole trip command, a three-pole trip command needs to be given via output operand BKR FAIL 1 TRIP C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-229...
Page 434

GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-118: Single-pole breaker failure initiate logic 5-230 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 435

CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-119: Single-pole breaker failure, timers logic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-231...
Page 436

GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-120: Three-pole breaker failure, initiate logic 5-232 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 437

CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-121: Three-pole breaker failure, timers logic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-233...
Page 438: Voltage Elements

The undervoltage protection feature can be used to either cause a trip or generate an alarm when the voltage drops below a specified voltage setting for a specified time delay. 5-234 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 439

PHASE UV1 MODE: Range: Phase to Ground, Phase to Phase  Phase to Ground PHASE UV1 Range: 0.004 to 3.000 pu in steps of 0.001  PICKUP: 1.000 pu C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-235...
Page 440

Range: 0.004 to 3.000 pu in steps of 0.001  PICKUP: 1.000 pu PHASE OV1 PICKUP Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s 5-236 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 441

Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s NEUTRAL OV1 RESET: Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s NEUTRAL OV1 BLOCK: Range: FlexLogic operand  C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-237...
Page 442

Range: Self-reset, Latched, Disabled  Self-reset NEG SEQ OV1 EVENTS: Range: Disabled, Enabled  Disabled There is one negative-sequence overvoltage element available per CT bank, to a maximum of three. 5-238 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 443

Range: Disabled, Enabled  Disabled The C70 contains one auxiliary overvoltage element for each VT bank. This element is intended for monitoring overvoltage conditions of the auxiliary voltage. The nominal secondary voltage of the auxiliary voltage channel entered under SYSTEM is the per-unit (pu) base used when setting the SETUP ...
Page 444

Range: 0.001 to 1.000 pu in steps of 0.001  PICKUP: 0.040 pu VOLTAGE DIF 1 STG 1C Range: 0.001 to 1.000 pu in steps of 0.001  PICKUP: 0.010 pu 5-240 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 445

An automatic setting procedure is available under the COMMAND menu to calculate automatically the matching factor when installing the relay or after repairs of the bank. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-241...
Page 446

A to C in per-units (pu) of the nominal bus voltage. A value of 1 pu is a product of the nominal secondary voltage and VT ratio of the voltage bank configured under the bus source of this function. Four independent stages are provided for each phase of protection. 5-242 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 447

Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6  SOURCE: SRC 1 BANK OV 1 NTRL Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6  SOURCE: SRC 1 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-243...
Page 448

Range: Self-reset, Latched, Disabled  Self-Reset BANK OV 1 EVENTS: Range: Disabled, Enabled  Disabled Up to three identical bank overvoltage elements, one per each VT bank configured in hardware, are provided. 5-244 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 449

The VT ratio and secondary nominal voltage are set under the SETTINGS  SYSTEM SETUP  AC INPUTS  VOLTAGE BANK menu. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-245...
Page 450

— This input is used to block the function when required; in particular, when the bank is offline. BANK OV 1 BLK 5-246 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 451

Range: 0.001 to 1.000 pu in steps of 0.001  STG 2 PKP: 0.020 pu NTRL VOL UNBAL 1 Range: 0.0 to 10.0% in steps of 0.1  STG 2 SLOPE: 0.0% C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-247...
Page 452

The slope of the operating characteristic is user adjustable, and if required, it can be effectively removed yielding a straight compensated overvoltage function. For information, see the Application of Settings chapter. 5-248 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 453

— Selects the grounding arrangement of the bank. For ungrounded banks, set it to “VT NTRL VOL UNBAL 1 GROUND (ungrnd)”. When the bank neutral is solidly grounded through the CT with a resistor in the CT secondary, set it as “CTxR (grnd)”. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-249...
Page 454

The function becomes blocked if all four blocking inputs are asserted. The individual blocking inputs inhibit the associated stages of the function. 5-250 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 455: Control Elements

Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s TRIP BUS 1 RESET Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-251...
Page 456

— This setting enables or disables latching of the trip bus output. This is typically used when lockout is TRIP BUS 1 LATCHING required or user acknowledgement of the relay response is required. 5-252 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 457: Setting Groups

— When Enabled, allows setting groups other than group 1 (the default active group) to be SETTING GROUPS FUNCTION activated. The default setting group is forced active while the setting is Disabled. SETTING GROUPS FUNCTION C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-253...
Page 458: Selector Switch

SELECTOR 1 FULL Range: 1 to 7 in steps of 1  RANGE: 7 SELECTOR 1 TIME-OUT: Range: 3.0 to 60.0 s in steps of 0.1  5.0 s 5-254 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 459

Z the pre-selected position. The message is displayed for the time specified by the FLASH setting. The pre-selected position is applied after the selector times out (“Time-out” mode), or when the MESSAGE TIME C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-255...
Page 460

If the position restored from memory is out of range, position 0 (no output operand selected) is applied and an alarm is set ( SELECTOR 1 PWR ALARM 5-256 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 461

The selector position pre-selected via the three-bit control input has not been confirmed before the time The following figures illustrate the operation of the selector switch. In these diagrams, “T” represents a time-out setting. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-257...
Page 462

CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-137: Time-out mode 5-258 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 463

1 through 3. The pre-selected setting group is to be applied automatically after five seconds of inactivity of the control inputs. When the relay powers up, it is to synchronize the setting group to the three-bit control input. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-259...
Page 464

SETUP  USER-PROGRAMMABLE PUSHBUTTONS  USER PUSHBUTTON 1 : “Self-reset” PUSHBUTTON 1 FUNCTION : “0.10 s” PUSHBUTTON 1 DROP-OUT TIME The figure shows the logic for the selector switch. 5-260 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 465: Time Of Day Timers

The time of day timer function provides the ability to program control actions based on real time. There are five identical timers, each with an independent start and stop time setting. Each timer is on when the C70 real-time clock/calendar value is later than its programmed start time, and earlier than its programmed stop time.
Page 466

— If enabled, the events are logged. TIME OF DAY TIMER 1 EVENTS TIME OF DAY 1 ON TIME OF DAY 1 OFF Figure 5-142: Time of day timer logic 5-262 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 467: Capacitor Control

Range: 0.000 to 60.000 s in steps of 0.001  DELAY: 0.400 s CAP 1 REMOTE CLOSE: Range: FlexLogic operand  CAP 1 LOCAL CLOSE: Range: FlexLogic operand  CAP 1 AUTO CLOSE: Range: FlexLogic operand  C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-263...
Page 468

 Disabled The C70 is provided with optional capacity bank control. This feature is specified as an option at the time of ordering. See the Order Codes section in chapter 2 for details. The capacitor control element gathers on/off commands from various sources and executes them, while maintaining remote/local and auto/manual control rights.
Page 469

— Selects a FlexLogic operand that overrides all inhibits for the breaker close command and allows the CAP 1 CLS OVERRIDE CLOSE command to be issued from any source as per the logic diagram. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-265...
Page 470

CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-143: Capacitor bank control logic 5-266 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 471: Automatic Voltage Regulator

The automatic voltage regulator element (AVR) is intended to switch a static capacitor bank breaker open and closed to regulate system voltage, load voltage, power factor, or reactive power. The figure shows some applications. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-267...
Page 472

For the latter preference, set the var open mode to “Minimize No. of Ops” (minimize number of operations) and set the var open level to the negative of the close level. 5-268 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 473

— In the voltage mode, this setting specifies the voltage level at or above which to issue the open AVR 1 VOLT LEVEL TO OPEN command. The following figure illustrates voltage control level settings. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-269...
Page 474

— Specifies a dynamic blocking condition. When blocked the element resets its output flags and internal AVR 1 BLOCK timers. VT fuse fail is a typical application. 5-270 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 475: Digital Elements

PICKUP LED: Enabled DIG ELEM 1 BLOCK: Range: FlexLogic operand  DIGITAL ELEMENT 1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset DIGITAL ELEMENT 1 Range: Disabled, Enabled  EVENTS: Disabled C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-271...
Page 476

In most breaker control circuits, the trip coil is connected in series with a breaker auxiliary contact that is open when the breaker is open (see figure). To prevent unwanted alarms in this situation, the trip circuit monitoring logic must include the breaker position. 5-272 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 477

Using the contact input settings, this input is given an ID name, for example, “Cont Ip 1," and is set “On” when the breaker is closed. The settings to use digital element 1 to monitor the breaker trip circuit are indicated (EnerVista example shown). C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-273...
Page 478: Digital Counters

Range: Disabled, Enabled  FUNCTION: Disabled  COUNTER 1 NAME: Range: up to 12 alphanumeric characters  Counter 1 COUNTER 1 UNITS: Range: up to six alphanumeric characters  5-274 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 479

If control power is interrupted, the accumulated and frozen values are saved into non-volatile memory during the power-down operation. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-275...
Page 480: Monitoring Elements

   VT FUSE FAILURE 1 See page 5-287     VT FUSE FAILURE 6    THERMAL OVERLOAD See page 5-289   PROTECTION 5-276 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 481

— Selects the threshold value above which the output operand is set. BKR 1 ARC AMP LIMIT C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-277...
Page 482

-cycle) and AMP MAX (kA) values of the last event. — This setting specifies the maximum symmetrical interruption rating of the circuit breaker. BKR 1 INTERUPTION RATING Figure 5-152: Arcing current measurement 5-278 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 483

CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-153: Breaker arcing current logic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-279...
Page 484

The voltage difference is not considered as a condition for open breaker in this part of the logic. 5-280 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 485

This application does not require detection of breaker status via a 52a contact, as it uses a voltage difference larger than setting. However, monitoring the breaker contact ensures scheme stability. BRK 1 FLSHOVR DIFF V PKP C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-281...
Page 486

(all line breakers open), to well above the maximum line (feeder) load (line/feeder connected to load). 5-282 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 487

A six-cycle time delay applies after the selected FlexLogic operand resets. — This setting specifies the time delay to operate after a pickup condition is detected. BRK FLSHOVR PKP DELAY C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-283...
Page 488

CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-154: Breaker flashover logic 5-284 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 489

 EVENTS: Disabled One breaker restrike element is provided for each DSP in the C70. According to IEEE standard C37.100 entitled IEEE Standard Definitions for Power Switchgear, restrike is defined as “a resumption of current between the contacts of a switching device during an opening operation after an interval of zero current of ¼...
Page 490

— Specifies the reset delay for this element. When set to “0 ms,” then FlexLogic operand is BREAKER RESTRIKE 1 RESET DELAY picked up for only 1/8th of the power cycle. 5-286 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 491

B failures is when positive sequence current is present and there is an insignificant amount of positive sequence voltage. Also, a rapid decrease in the phase voltages magnitude from a healthy C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-287...
Page 492

PHASE VT SECONDARY of DELTA VTs. The setting is found under SETTINGS  SYSTEM SETUP  AC INPUTS  VOLTAGE BANK  PHASE VT SECONDARY Figure 5-158: VT fuse fail logic 5-288 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 493

= protected element base (nominal) current To ensure element accuracy for high overcurrent conditions, the maximum value of I/(k x I ) is limited to 8, even when realistically it is exceeding this value. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-289...
Page 494

The thermal overload protection element estimates accumulated thermal energy E using the following equations calculated each power cycle. When current is greater than the pickup level, I > k × I , element starts increasing the thermal energy: Eq. 5-26 5-290 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 495

60 minutes 20 minutes Underground cable 20 to 60 minutes 60 minutes The figure shows the logic for the thermal overload protection element. Figure 5-160: Thermal overload protection logic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-291...
Page 496: Inputs/outputs

The DC input voltage is compared to a user-settable threshold. A new contact input state must be maintained for a user-settable debounce time in order for the C70 to validate the new contact state. In the following figure, the debounce time is set at 2.5 ms;...
Page 497

For example, to use contact input H5a as a status input from the breaker 52b contact to seal-in the trip relay and record it in the Event Records menu, make the following settings changes: C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-293...
Page 498: Virtual Inputs

FlexLogic equation, it likely needs to be lengthened in time. A FlexLogic timer with a delayed reset can perform this function. Figure 5-162: Virtual inputs logic 5-294 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 499: Contact Outputs

: any suitable FlexLogic operand OUTPUT H1 OPERATE “Cont Op 1 OUTPUT H1 SEAL-IN IOn” : “Enabled” CONTACT OUTPUT H1 EVENTS Figure 5-163: Contact input/output module type 6A contact 1 logic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-295...
Page 500

Figure 5-164: Contact input/output module type 4L contact 1 logic Application example 1 A latching output contact H1a is to be controlled from two user-programmable pushbuttons (buttons number 1 and 2). The following settings are applied. 5-296 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 501

(assuming an H4L module): OUTPUTS  CONTACT OUTPUT H1a CONTACT OUTPUT H1c : “VO1” OUTPUT H1a OPERATE : “VO4” OUTPUT H1a RESET : “VO2” OUTPUT H1c OPERATE : “VO3” OUTPUT H1c RESET C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-297...
Page 502: Virtual Outputs

VIRTUAL OUTPUT 1 ID : "Disabled" VIRTUAL OUTPUT 1 EVENTS 5.9.5 Resetting 5.9.5.1 Enhanced and standard front panels SETTINGS  INPUTS/OUTPUTS  RESETTING  RESETTING RESET OPERAND: Range: FlexLogic operand   5-298 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 503

These settings specify how the direct input information is processed. — This setting allows the user to assign a descriptive name to the direct input. DIRECT INPUT 1 NAME C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-299...
Page 504

Assume that contact input 1 from UR IED 2 is to be used by UR IED 1. The following settings are applied (Direct Input 5 and bit number 12 are used, as an example). UR IED 1: 5-300 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 505

(if any default state is set to “On”), or to trip the bus on any overcurrent condition (all default states set to “Off”). Example 3: Pilot-aided schemes Consider a three-terminal line protection application shown in the following figure. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-301...
Page 506

5" (forward a message from 1 to 3) DIRECT OUT 3 OPERAND "DIRECT INPUT 6" (forward a message from 3 to 1) DIRECT OUT 4 OPERAND The figure shows the signal flow among the three IEDs. 5-302 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 507

The “Latest/On” and “Latest/Off” values freeze the input in case of lost communications. If the latest state is not known, such as after relay power-up but before the first communication exchange, then the input defaults to logic 1 for “Latest/ On” and logic 0 for “Latest/Off.” C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-303...
Page 508

(teleprotection outputs at the sending end or corresponding teleprotection inputs at the receiving end). On three-terminal two-channel systems, redundancy is achieved by programming signal re-transmittal in the case of channel failure between any pair of relays. Figure 5-170: Teleprotection input/output processing 5-304 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 509: Transducer Inputs/outputs

VALUE: 0.000 The C70 is provided with optional DCmA capability. This feature is specified as an option at the time of ordering. See the Order Codes section in chapter 2 for details. Hardware and software are provided to receive signals from external transducers and to convert these signals into a digital format for use as required.
Page 510: Rtd Inputs

1.5 pu. FlexElement operands are available to FlexLogic for further interlocking or to operate an output contact directly. See the following table for reference temperature values for each RTD type. 5-306 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 511: Dcma Outputs

Range: –90.000 to 90.000 pu in steps of 0.001  MIN VAL: 0.000 pu DCMA OUTPUT F1 Range: –90.000 to 90.000 pu in steps of 0.001  MAX VAL: 1.000 pu C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-307...
Page 512

— This setting allows selection of the output range. Each DCmA channel can be set independently DCMA OUTPUT F1 RANGE to work with different ranges. The three most commonly used output ranges are available. 5-308 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 513

The CT ratio is 5000:5 and the maximum load current is 4200 A. The current is to be monitored from 0 A upwards, allowing for 50% overload. The phase current with the 50% overload margin is: Eq. 5-34 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-309...
Page 514

• ±0.5% of reading For example, under nominal conditions, the positive-sequence reads 230.94 kV and the worst-case error is 0.005 × 230.94 kV + 1.27 kV = 2.42 kV. 5-310 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 515: Testing

 FUNCTION: Disabled The C70 provides a test facility to verify the functionality of contact inputs and outputs, some communication functions and the phasor measurement unit (where applicable), using simulated conditions. The test mode can be in any of three states: Disabled, Isolated, or Forcible.
Page 516: Force Contact Inputs

FORCE Cont Op xx Range: Normal, Energized, De-energized, Freeze  : Normal The force contact outputs feature provides a method of performing checks on the function of all contact outputs. 5-312 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 517

While the selected operand is Off, the output behaves as it does when in service. On restart, the setting and the force contact input and force contact output settings revert to TEST MODE FORCING their default states. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-313...
Page 518

TESTING CHAPTER 5: SETTINGS 5-314 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 519

 RxGOOSE STATUS See page 6-6    RxGOOSE See page 6-6   STATISTICS  DIGITAL COUNTERS See page 6-7    SELECTOR SWITCHES See page 6-7   C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 520

See page 6-23   DCMA INPUTS  TRANSDUCER I/O See page 6-23    RTD INPUTS  ACTUAL VALUES  USER-PROGRAMMABLE See page 6-23   RECORDS  FAULT REPORTS C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 521: Front Panel

The front panel can be viewed and used in the EnerVista software, for example to view an error message displayed on the front panel. To view the front panel in EnerVista software: Click Actual Values > Front Panel. Figure 6-1: Front panel use in the software (C60 shown) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 522

For example, ‘Virt Ip 1’ refers to the virtual input in terms of the default name. The second line of the display indicates the logic state of the virtual input. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 523: Rxgoose Boolean Inputs

Range: On, Off  STATUS: Off The C70 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. 6.3.4 RxGOOSE DPS inputs ACTUAL VALUES ...
Page 524

 Offline The C70 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. actual value does not consider RxGOOSE that are not configured or are not used by any RxGOOSE All RxGOOSE Online Input.
Page 525

CHAPTER 6: ACTUAL VALUES STATUS The C70 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. — State number. The most recently received value in GOOSE message field stNum. The publisher increments stNum stNum each time that the state of one or more of the GOOSE message members is sent with a revised value.
Page 526: Flex States

Pdelay), Synchronized PORT 3 PTP STATE: Range: Disabled, No Signal, Calibrating, Synch’d (No  No Signal Pdelay), Synchronized PTP - IRIG-B DELTA: Range: -500,000,000 to +500,000,000 ns  500000000 ns C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 527: Direct Inputs

UNRETURNED MSG COUNT CRC FAIL values can be cleared using the command. COUNT CLEAR DIRECT I/O COUNTERS values represent the state of each direct input. DIRECT INPUT 1 DIRECT INPUT (32) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 528: Direct Devices Status

Range: 0 to 4  DNP TCP(max 2) Range: 0 to 2  IEC-104 TCP(max 2) Range: 0 to 2  SFTP (max 4) Range: 0 to 4  6-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 529: Parallel Redundancy Protocol (prp)

Range: 0 to 4G, blank if PRP disabled  The C70 is provided with optional PRP capability. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
Page 530

METERING CHAPTER 6: ACTUAL VALUES The C70 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. This status is relevant to R-GOOSE reception when configured for SSM or ASM reception modes. It is not relevant for GOOSE or for R-GOOSE in unicast reception mode.
Page 531

All phasors calculated by URs and used for protection, control and metering functions are rotating phasors that maintain the correct phase angle relationships with each other at all times. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 6-13...
Page 532

For display and oscillography purposes the phase angles of symmetrical components are referenced to a common reference as described in the previous sub-section. WYE-connected instrument transformers • ABC phase rotation: • ACB phase rotation: The above equations apply to currents as well. 6-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 533

* The power system voltages are phase-referenced – for simplicity – to V and V , respectively. This, however, is a relative matter. It is important to remember that the C70 displays are always referenced as specified under SETTINGS  SYSTEM SETUP  POWER SYSTEM  FREQUENCY AND PHASE REFERENCE The example above is illustrated in the following figure.
Page 534: Sources

 0.000 A 0.0° SRC 1 PHASOR Ic:  0.000 A 0.0° SRC 1 PHASOR In:  0.000 A 0.0° SRC 1 ZERO SEQ I0:  0.000 A 0.0° 6-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 535

 0.000 V 0.0° SRC 1 PHASOR Vbc:  0.000 V 0.0° SRC 1 PHASOR Vca:  0.000 V 0.0° SRC 1 ZERO SEQ V0:  0.000 V 0.0° C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 6-17...
Page 536

SRC 1 APPARENT PWR  φb: 0.000 VA SRC 1 APPARENT PWR  φc: 0.000 VA SRC 1 POWER FACTOR  3φ: 1.000 SRC 1 POWER FACTOR  φa: 1.000 6-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 537

S = V x Î x Î x Î Eq. 6-1 When VTs are configured in delta, the C70 does not calculate power in each phase and three-phase power is measured as S = V x Î x Î Eq. 6-2...
Page 538

CAP 1 DISCHARGE TIME:    CAP 3 DISCHARGE TIME:  These values indicate the time remaining before the next permissible close operation for each of the three capacitor banks. 6-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 539: Capacitor Bank

 UNBALANCE 1 Cm Iop A: 0.0000 pu Raw Id B: 0.0000 pu  Cm Iop B: 0.0000 pu Raw Id C: 0.0000 pu  Cm Iop C: 0.0000 pu C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 6-21...
Page 540: Tracking Frequency

+IN and –IN inputs BASE BASE BASE SOURCE THD & HARMONICS BASE = 1% SOURCE VOLTAGE = maximum nominal primary RMS value of the +IN and –IN inputs BASE 6-22 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 541: Rxgoose Analogs

 0.000 The C70 is provided with optional GOOSE communications capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. The RxGOOSE Analog values display in this menu. The RxGOOSE Analog values are received via IEC 61850 GOOSE messages sent from other devices.
Page 542: Event Records

Figure 6-6: Event records viewed in EnerVista software 6.5.2.2 Graphical front panel To display the event records page, press the Home pushbutton then the Event Record Tab pushbutton. The newest event is always at the top. 6-24 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 543

RECORDS 6.5.4 Data logger ACTUAL VALUES  RECORDS  DATA LOGGER  DATA LOGGER OLDEST SAMPLE TIME:  2000/01/14 13:45:51  C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 6-25...
Page 544: Breaker Maintenance

BREAKER OPERATING TIME All of the values are stored in non-volatile memory and retained with power cycling. 6-26 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 545: Product Information

Range: 0.00 to 655.35  REVISION: 2.01 Revision number of front panel program firmware. COMPILE DATE: Range: YYYY/MM/DD HH:MM:SS  2016/09/15 04:55:16 Date and time when product firmware was built. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 6-27...
Page 546

The shown data is illustrative only. A modification file number of 0 indicates that, currently, no modifications have been installed. The date format reflects the format specified for the clock and can vary from that shown here. 6-28 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 547: Commands And

The commands menu contains relay directives intended for operations personnel. All commands can be protected from unauthorized access via the command password; see the Security section of chapter 5 for details. The following flash message appears after successfully command entry. COMMAND EXECUTED C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 548: Capacitor Bank Automatic Setting

After the process finishes, it is recommended to disable the auto-setting feature. If not disabled by the user, the feature disables itself when user-initiated front panel interface activity ceases and the C70 display dims itself. Certain security conditions are checked during the auto-setting process. This includes deviation from the nominal frequency and verifying that the magnitudes of all three bus voltages are between 0.85 and 1.15 pu.
Page 549

“Auto” to “Disabled” and 87V becomes operational. In essence, when in the “Auto” mode, the user confirmation is processed immediately after the balancing values become available. The C70 does not display the applied coefficients in “Auto” mode; rather, they are be viewed in the menu.
Page 550

“Auto” to “Disabled” and the 59NU function becomes operational. In essence, when in the “Auto” mode, the confirmation command executes automatically immediately after the balancing values are available. The C70 does not display the applied coefficients in the “Auto” mode; rather, they are be viewed in the menu.
Page 551

“Auto” to “Disabled” and the 60P element becomes operational. When in “Auto” mode, the automatic confirmation command executes immediately after the balancing values are available. The C70 does not display the applied coefficients in “Auto” mode; rather, they can be viewed in the menu.
Page 552

“Auto” to “Disabled,” and the 60N element becomes operational. In essence, when in “Auto” mode, the confirmation command executes automatically immediately after the balancing values become available. The C70 does not display the applied coefficients in the “Auto” mode; instead, they can be viewed in the menu.
Page 553: Set Date And Time

Range: Off, Red, Green, Blue, White & Text Pattern,  Black & Text Pattern, TV Test Pattern PERFORM PUSHBUTTON Range: No, Yes  TEST? No UPDATE ORDER CODE? Range: No, Yes  C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 554

Although the diagnostic information is cleared before the C70 is shipped from the factory, the user can want to clear the diagnostic information for themselves under certain circumstances. For example, you clear diagnostic information after replacement of hardware.
Page 555: Targets Menu

A target enables the EnerVista UR Setup software to monitor automatically and display the status of any active target messages of all the devices inserted into that site. Each C70 element with a TARGET setting has a target message that when activated by its element is displayed in sequence with any other currently active target messages in the menu.
Page 556: Relay Self-tests

Contact Factory (xxx) • Latched target message: Yes. • Description of problem: One or more installed hardware modules is not compatible with the C70 order code. • How often the test is performed: Module dependent. • What to do: Contact the factory and supply the failure code noted in the display. The “xxx” text identifies the failed module (for example, F8L).
Page 557

• How often the test is performed: The battery is monitored every five seconds. The error message displays after 60 seconds if the problem persists C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 7-11...
Page 558

How often the test is performed: Upon initiation of a contact output state change. • What to do: Verify the state of the output contact and contact the factory if the problem persists. 7-12 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 559

What to do: Check direct input and output configuration and wiring. RxGOOSE FAIL: Missing messages • Latched target message: No. • Description of problem: One or more RxGOOSE messages are not being received. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 7-13...
Page 560

V-type CPU = All ports support RJ45 SFPs only The consequence of an incorrect SFP can range from damage to the C70 to no power information for the C70 on its web page (enter IP address in a web browser, then click the SFP Transceiver Information — only the type of SFP displays and not power data).
Page 561

• Description of problem: Seen until the builds is tagged as being 'release candidate' or 'gold' builds. • What to do: Update firmware to either of these builds. • C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 7-15...
Page 562

This self-test is initiated by low received signal levels at either the Brick or Process Card end, and by the sustained failure to receive poll responses from the proper Brick. 7-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 563

A latched target can be unlatched by pressing the front panel reset key if the command has ended, however the output can still be non-functional. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 7-17...
Page 564

TARGETS MENU CHAPTER 7: COMMANDS AND TARGETS 7-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 565: Application Of

A capacitor bank using fused capacitors is configured using one or more series groups of parallel-connected capacitor units per-phase, as shown. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 566

A fuseless capacitor bank typically is the most prevalent design. The capacitor units in the bank are connected in series strings between phase and neutral. The higher the bank voltage, the more capacitor elements in series. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 567

However, the neutral should be insulated for full line voltage because it is momentarily at phase potential when the bank is switched or when one capacitor unit fails in a bank configured with a single group of units. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 568: Delta Connected Banks

The ratio changes with any capacitor failure in the phase, providing sensitive protection. 8.2.6 Summary The figure summarizes the grounded wye, ungrounded wye, delta, H-bridge, and tapped connection types for capacitor banks. Figure 8-4: Capacitor bank connections C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 569: Protection Methods For Capacitor Banks

Capacitor unbalance protection is provided in many ways, depending on the capacitor bank arrangement. A variety of unbalance protection schemes can be applied with the C70 for internally fused, externally fused, fuseless, or unfused shunt capacitor banks, as shown in the rest of this section.
Page 570

Figure 8-5: Single bank, ungrounded, no tap available The following figure illustrates a single capacitor bank, ungrounded, with a tap. In this case, two CT/VT modules are required. Figure 8-6: Single bank, ungrounded, with a tap C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 571

Figure 8-8: Parallel banks, ungrounded, no tap available, current unbalance protection The following figure illustrates parallel capacitor banks, grounded, no tap available, and with current unbalance protection. In this case, two CT/VT modules are required. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 572

The following figure illustrates parallel capacitor banks, grounded, no tap available, with current unbalance protection and high-side CTs for each bank. In this case, two CT/VT modules are required. Figure 8-10: Parallel banks, grounded, no tap, with current balance protection and high-side CTs C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 573

0.1 seconds is adequate. For unbalance relaying systems that operate on a system voltage unbalance (ground fault), a delay slightly longer than the upstream protection fault clearing time is required to avoid tripping due to a system fault. Longer delays increase the probability of catastrophic bank failure. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 574: Protection For Rack Faults (arc-over Within Capacitor Banks)

Especially for very large EHV capacitor banks, it is advisable to install three-phase overvoltage protection (ANSI 59B) to trip the bank quickly for extreme overvoltage conditions. To avoid nuisance tripping during transient overvoltage conditions, in some cases, tripping is delayed by a timer. The C70 provides inverse time overvoltage characteristics required to decrease tripping time for large overvoltages.
Page 575: Overcurrent

Each capacitor unit consisting of n = 6 series capacitors The figure shows details. Phase capacitors are connected to ground through a neutral capacitor rated Q = 167 kvar, V = 0.825 kV. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 8-11...
Page 576: Vt And Ct Setup

Figure 8-12: Sample capacitor bank configuration Based on the bank configuration, CT connections, and VTs connections, a C70 model is chosen with three CT/VT modules: two type 8L modules (in slots F and U) and one type 8V module (in slot M) to provide following protection functionality.
Page 577

Therefore, the tap VT secondary voltage is set as: Eq. 8-3 Where the VT ratio N is calculated as: tap(VT) Eq. 8-4 The following settings are applied in the EnerVista UR Setup software. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 8-13...
Page 578: Source Assignment

Eq. 8-7 The impedance of the bottom capacitor can: Eq. 8-8 The total impedance of the healthy capacitor string: Eq. 8-9 The maximum rated line-to-neutral system voltage: Eq. 8-10 8-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 579

K = 1, for 87V-3 in per-unit values is: Eq. 8-20 The unbalance current in the window type CT between two strings with one failed capacitor element in the upper string: Eq. 8-21 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 8-15...
Page 580: Bank Voltage Differential Settings

An 87V-1 differential element measuring the differential voltage between the two bottom taps • An 87V-2 differential element measuring the differential voltage between the upper capacitor string and bottom capacitor can for string 1 8-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 581

EnerVista UR Setup software. Note that match factor shown above assumes perfect bank balance. This must be adjusted when the bank is energized during the differential function auto-setting procedure tune up. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 8-17...
Page 582: Bank Phase Current Unbalance Settings

The pickup setting for the stage 1 phase current unbalance alarm element is programmed for one element failure. Eq. 8-25 Therefore, the alarm delay is specified as 10 seconds. The following setting values are programmed in the EnerVista UR Setup software. 8-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 583: Bank Phase Overvoltage Settings

When the relay settings are calculated, the number of prospective overvoltage transients stressing the capacitor insulation during the bank lifetime must be taken into account. As such, it is preferable to set the relay conservatively. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 8-19...
Page 584: Bank Phase Undervoltage Settings

0.7 pu with a time delay of 1 second, based on maximum fault clearing time. The bank undervoltage element is blocked during VT fuse fail conditions. The following setting values are programmed in the EnerVista UR Setup software. 8-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 585: Bank Overcurrent Protection

10% of the nominal bank phase current with a delay of 250 to 400 ms typically provides adequate coordination for faults external to the bank and protection for internal rack faults. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 8-21...
Page 586

SETTINGS EXAMPLE CHAPTER 8: APPLICATION OF SETTINGS 8-22 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 587: Bank Phase Overvoltage (ansi 59b)

However, this approach is seldom economic due to the large number of voltage transducers required. Thus, the C70 supports various other methods, the suitability of each dependant on the capacitor bank configuration, and on the VTs and CTs available.
Page 588

For an balanced ungrounded bank the neutral voltage V Eq. 9-2 As such, the A-string voltage is: Eq. 9-3 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 589: Voltage Differential (ansi 87v)

For ungrounded banks, the neutral point voltage (V ) must be measured by the relay and used to derive the voltage across the string. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 590

C , and the bank is energized with system phase-to-ground voltage V , then the string forms a voltage divider and the initial measured voltages are: Eq. 9-10 Eq. 9-11 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 591

Instead of a failure in the upper sub-string, now suppose a failure in the lower sub-string. The same approach is used, except to make the algebra easier, the initial operating signal is converted to be in terms of C using: Eq. 9-17 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 592

(pu) represents the worse case OP(1A) sensitivity. A failure resulting in a 0.01 pu capacitance change in the leg capacitance results in an operating signal of at least 0.01 pu of bus phase-to-ground voltage. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 593: Compensated Bank Neutral Voltage Unbalance (ansi 59nu)

Commands chapter. The C70 sets the operate signal to zero in equation 9.7 or 9.8 and solves for the match factor k using the average of several successive voltage measurements.
Page 594

As the left hand side of this equation is equal to zero, we can subtract it from the expression inside the absolute value brackets in equation 9.25 to get: Eq. 9-30 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 595

As such, the derivative is: Eq. 9-33 Recall equation 9.29: Eq. 9-34 Differentiating this gives: Eq. 9-35 Substituting for V from equation 9.34 gives: Eq. 9-36 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 596

During external ground faults, these two voltages are approximately in phase generating a large restraining signal being twice the zero-sequence voltage at the bus. A slope of few percent is typically sufficient to provide good security under large system unbalances. 9-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 597: Phase Current Unbalance (ansi 60p)

This equation involves phasors, not magnitudes; that is, the vector sum of the currents is created by the protection function implementing the method. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 9-11...
Page 598

CT primary current rating. This places the string currents on the same base per-unit base used by the C70. Voltages are expressed in primary volts, capacitances in Farads, and frequency in radians per second. The differential current is the vector difference between the two currents: Eq.
Page 599

I converted to the differential source base. For example, I , where I is again the rated rated base base differential CT primary current rating, or: Eq. 9-53 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 9-13...
Page 600: Neutral Current Unbalance (ansi 60n)

However, with the two banks slightly mismatched due to manufacturing tolerances, a circulating zero-sequence current can be present. Compensation for this inherent unbalance current is available to increase the sensitivity of the function. 9-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 601

Sensitivity is the key performance parameter. The applied comparator uses a simple integration method in addition to the standard hysteresis approach, to deal with chattering of the operating signal at the boundary of operation. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 9-15...
Page 602

At the same time the total currents in each phase are driven by the total admittance of the two banks in each phase: Eq. 9-59 Inserting the equations above into equation 9.58 so as to eliminate the voltages: Eq. 9-60 Label k , and k as follows: Eq. 9-61 9-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 603

We assume here that the currents remain constant, which investigation has shown results in negligible error. The derivative is thus: Eq. 9-65 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 9-17...
Page 604

9.1.6.6 Application to ungrounded capacitor banks The forgoing discussion of the neutral current balance protection applied to the ground configuration. When applied to ungrounded configurations, all of it applies, with the following exceptions: 9-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 605

In this situation, the base for ΔC(pu) is the capacitance of the string that has the element failure, so the larger bank has a lower sensitivity than the smaller bank. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 9-19...
Page 606

OVERVIEW CHAPTER 9: THEORY OF OPERATION 9-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 607: Devices With Site Targets

UR Family Communications Guide for the entries. The upper part of the window displays values. The lower part of the window is for factory service use. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-1...
Page 608

Float — A numbering system with no fixed number of digits before or after the decimal point. An example is 0.000000. Binary — A numbering system using 0 and 1. An example is 0000-0000-0000-0000. Entries are not saved when closing the window. 10-2 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 609: General Maintenance

GENERAL MAINTENANCE 10.2 General maintenance The C70 requires minimal maintenance. As a microprocessor-based relay, its characteristics do not change over time. Expected service life is 20 years for UR devices manufactured June 2014 or later when applied in a controlled indoor environment and electrical conditions within specification.
Page 610: Cybersentry Security Event Files

Using the Up or Down pushbuttons on the front panel, select the file. Press the COPY pushbutton. The files are copied from the C70 to the USB drive. Do not unplug the USB drive while copying is in progress, else the USB drive can be compromised.
Page 611: Convert Device Settings

Convert the settings by right-clicking one of the files in the Offline Window and selecting the Convert Device Settings option. GE recommends converting settings in firmware steps, for example when converting from 6.0 to 7.4x, convert first to 7.0 then 7.4 in order to follow embedded conversion rules and keep settings.
Page 612

Change settings in the new file, for example by looking at the original file. Write the converted file to the device, for example by dragging and dropping from the Offline Window to the Online Window. Check settings and operation. 10-6 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 613: Copy Settings To Other Device

10.5 Copy settings to other device Settings from one C70 device can be copied to another C70 device for rapid deployment. The order codes must match. See the Settings File section at the beginning of the Interfaces chapter for a list of settings not deployed, such as IP address.
Page 614: Compare Two Devices

UR device settings can be saved in a backup URS file using the EnerVista UR Setup software. The URS file is the standard UR settings file. For an introduction to settings files in the URS format, see the beginning of the Interfaces chapter. 10-8 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 615

Have this option enabled when you want to keep the IID file from the UR device instead of from another tool. The location of the file is C:\ProgramData\GE Power Management\urpc\Offline, for example.
Page 616

The file is copied from the computer to the location specified. To save list of sites and devices with an Environment backup: In EnerVista, click File > Environment > Backup. A window opens. Name and save the .ENV file. 10-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 617: Restore Settings

These messages display because the roles of the protection engineer and network engineer can be separate. The former can require a URS file, while the latter can require stored Modbus settings and protection schemes. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-11...
Page 618

To restore the list of sites and devices from an Environment backup: In EnerVista, click File > Environment > Restore. A window opens. Select the .ENV file to restore. 10-12 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 619: Upgrade Software

For Windows 10, to finish installing the UR USB driver, open Device Manager > Ports, then plug in the USB cable (to connect the relay and computer). A new port starting with "GE Virtual Serial Port" is available. If available, click the OK button to complete the installation.
Page 620: Upgrade Firmware

You access the Convert Device Settings option by right-clicking the file in the Offline Window area at the lower left. GE recommends converting settings in firmware steps, for example when converting from 6.0 to 7.4x, convert first to 7.0 then 7.4 in order to follow embedded conversion rules and keep settings. Note that the values of all settings that have been defaulted during conversion are not listed in the conversion report;...
Page 621: Replace Front Panel

For an enhanced front panel, loosen the thumb screw and open slightly the front panel. For a standard front panel, lift up the black plastic latch on the right side of the front panel and open slightly the front panel. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-15...
Page 622

With a Phillips screwdriver, unscrew and remove the mounting bracket on the right side of the unit. The bracket for the enhanced front panel looks similar to that for the graphical front panel, but they are not the same. 10-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 623

Open the front panel. Unplug or unscrew the grey ground cable from the front panel. Unplug the RJ45 connector from the CPU module in the second slot on the left. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-17...
Page 624

Unscrew and remove the mounting bracket with the front panel from the left side. Figure 10-17: Unscrew enhanced front panel mounting bracket on left side Figure 10-18: Unscrew standard front panel mounting bracket on left side 10-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 625

Figure 10-19: Attach mounting bracket to relay on left side (no power supply module in first slot) Screw the right mounting bracket to the right side of the relay. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-19...
Page 626

Optionally remove the protective plastic film on the graphical front panel. It is normally peeled off, but also can be left The graphical front panel has been installed but not connected. 10-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 627

Ensure that the RS485 connector and the black cover plate are not on the back of the CPU module before sliding the module into the front of the relay. Figure 10-23: Rear of a CPU module before insertion without RS485 connector or cover plate C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-21...
Page 628

Insert the silver SFP connector(s) at the back of the CPU module, then connect any Ethernet connection(s). Power up the relay. If the graphical front panel does not power up immediately, disconnect power, open the front 10-22 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 629: Replace Module

The new wide-angle hinge assembly in the enhanced front panel opens completely and allows easy access to all modules in the C70. Figure 10-26: Modules inside relay with front cover open (enhanced front panel) C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-23...
Page 630: Battery

To avoid injury, ensure that the unit has been powered off for a minimum of three minutes before replacing the battery. Risk of fire if battery is replaced with incorrect type or polarity. 10-24 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 631: Dispose Of Battery

10. Reinstall the battery holder and the metal cover, and reinsert the power supply module into the unit. 11. Power on the unit. 12. Dispose of the old battery as outlined in the next section. 10.12.2 Dispose of battery C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-25...
Page 632

Paristo on merkitty tällä symbolilla ja saattaa sisältää cadmiumia (Cd), lyijyä (Pb) tai elohopeaa (Hg). Oikean kierrätystavan varmistamiseksi palauta tuote paikalliselle jälleenmyyjälle tai palauta se paristojen keräyspisteeseen. Lisätietoja sivuilla www.recyclethis.info. 10-26 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 633

å indikere at kadmium (Cd), bly (Pb), eller kvikksølv (Hg) forekommer. Returner batteriet til leverandøren din eller til et dedikert oppsamlingspunkt for korrekt gjenvinning. For mer informasjon se: www.recyclethis.info. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 10-27...
Page 634

Bu sembolle işaretlenmiş piller Kadmiyum(Cd), Kurşun(Pb) ya da Civa(Hg) içerebilir. Doğru geri dönüşüm için ürünü yerel tedarikçinize geri veriniz ya da özel işaretlenmiş toplama noktlarına atınız. Daha fazla bilgi için: www.recyclethis.info. 10-28 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 635: Clear Files And Data After Uninstall

For issues not solved by troubleshooting, the process to return the device to the factory for repair is as follows: • Contact a GE Grid Solutions Technical Support Center. Contact information is found in the first chapter. • Obtain a Return Materials Authorization (RMA) number from the Technical Support Center.
Page 636: Storage

Customers are responsible for shipping costs to the factory, regardless of whether the unit is under warranty. • Fax a copy of the shipping information to the GE Grid Solutions service department in Canada at +1 905 927 5098. Use the detailed return procedure outlined at https://www.gegridsolutions.com/multilin/support/ret_proc.htm...
Page 637: A.1 Flexanalog Items

Amps Source 1 phase C current RMS 6150 SRC 1 In RMS Amps Source 1 neutral current RMS 6152 SRC 1 Ia Mag Amps Source 1 phase A current magnitude C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 638

Amps Source 3 neutral current RMS 6280 SRC 3 Ia Mag Amps Source 3 phase A current magnitude 6282 SRC 3 Ia Angle Degrees Source 3 phase A current angle C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 639

Source 5 phase A current magnitude 6410 SRC 5 Ia Angle Degrees Source 5 phase A current angle 6411 SRC 5 Ib Mag Amps Source 5 phase B current magnitude C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 640

Source 1 phase BG voltage magnitude 6667 SRC 1 Vbg Angle Degrees Source 1 phase BG voltage angle 6668 SRC 1 Vcg Mag Volts Source 1 phase CG voltage magnitude C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 641

SRC 2 V_2 Mag Volts Source 2 negative-sequence voltage magnitude 6763 SRC 2 V_2 Angle Degrees Source 2 negative-sequence voltage angle 6784 SRC 3 Vag RMS Volts Source 3 phase AG voltage RMS C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 642

SRC 4 Vx RMS Volts Source 4 auxiliary voltage RMS 6880 SRC 4 Vx Mag Volts Source 4 auxiliary voltage magnitude 6882 SRC 4 Vx Angle Degrees Source 4 auxiliary voltage angle C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 643

Source 6 phase CA voltage RMS 6997 SRC 6 Vab Mag Volts Source 6 phase AB voltage magnitude 6999 SRC 6 Vab Angle Degrees Source 6 phase AB voltage angle C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 644

SRC 2 Phase C PF Source 2 phase C power factor 7232 SRC 3 P Watts Source 3 three-phase real power 7234 SRC 3 Pa Watts Source 3 phase A real power C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 645

SRC 5 Phase B PF Source 5 phase B power factor 7323 SRC 5 Phase C PF Source 5 phase C power factor 7328 SRC 6 P Watts Source 6 three-phase real power C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 646

Source 1 phase A voltage twenty-fourth harmonic 8088 SRC 1 Va Harm[25] Source 1 phase A voltage twenty-fifth harmonic 8089 SRC 1 Vb THD Source 1 phase B voltage total harmonic distortion (THD) A-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 647

Source 1 phase C voltage twenty-first harmonic 8135 SRC 1 Vc Harm[22] Source 1 phase C voltage twenty-second harmonic 8136 SRC 1 Vc Harm[23] Source 1 phase C voltage twenty-third harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-11...
Page 648

Source 2 phase B voltage eighteenth harmonic 8182 SRC 2 Vb Harm[19] Source 2 phase B voltage nineteenth harmonic 8183 SRC 2 Vb Harm[20] Source 2 phase B voltage twentieth harmonic A-12 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 649

Source 3 phase A voltage fifteenth harmonic 8229 SRC 3 Va Harm[16] Source 3 phase A voltage sixteenth harmonic 8230 SRC 3 Va Harm[17] Source 3 phase A voltage seventeenth harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-13...
Page 650

Source 3 phase C voltage twelfth harmonic 8276 SRC 3 Vc Harm[13] Source 3 phase C voltage thirteenth harmonic 8277 SRC 3 Vc Harm[14] Source 3 phase C voltage fourteenth harmonic A-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 651

Source 4 phase B voltage ninth harmonic 8323 SRC 4 Vb Harm[10] Source 4 phase B voltage tenth harmonic 8324 SRC 4 Vb Harm[11] Source 4 phase B voltage eleventh harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-15...
Page 652

Source 5 phase A voltage sixth harmonic 8370 SRC 5 Va Harm[7] Source 5 phase A voltage seventh harmonic 8371 SRC 5 Va Harm[8] Source 5 phase A voltage eighth harmonic A-16 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 653

Source 5 phase C voltage third harmonic 8417 SRC 5 Vc Harm[4] Source 5 phase C voltage fourth harmonic 8418 SRC 5 Vc Harm[5] Source 5 phase C voltage fifth harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-17...
Page 654

Source 6 phase A voltage twenty-fifth harmonic 8464 SRC 6 Vb THD Source 6 phase B voltage total harmonic distortion (THD) 8465 SRC 6 Vb Harm[2] Source 6 phase B voltage second harmonic A-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 655

Source 6 phase C voltage twenty-second harmonic 8511 SRC 6 Vc Harm[23] Source 6 phase C voltage twenty-third harmonic 8512 SRC 6 Vc Harm[24] Source 6 phase C voltage twenty-fourth harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-19...
Page 656

Source 1 phase B current twelfth harmonic 10285 SRC 1 Ib Harm[13] Source 1 phase B current thirteenth harmonic 10286 SRC 1 Ib Harm[14] Source 1 phase B current fourteenth harmonic A-20 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 657

Source 2 phase A current ninth harmonic 10348 SRC 2 Ia Harm[10] Source 2 phase A current tenth harmonic 10349 SRC 2 Ia Harm[11] Source 2 phase A current eleventh harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-21...
Page 658

Source 2 phase C current sixth harmonic 10411 SRC 2 Ic Harm[7] Source 2 phase C current seventh harmonic 10412 SRC 2 Ic Harm[8] Source 2 phase C current eighth harmonic A-22 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 659

Source 3 phase B current third harmonic 10474 SRC 3 Ib Harm[4] Source 3 phase B current fourth harmonic 10475 SRC 3 Ib Harm[5] Source 3 phase B current fifth harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-23...
Page 660

Source 3 phase C current twenty-fifth harmonic 10537 SRC 4 Ia THD Source 4 phase A current total harmonic distortion 10538 SRC 4 Ia Harm[2] Source 4 phase A current second harmonic A-24 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 661

Source 4 phase B current twenty-second harmonic 10592 SRC 4 Ib Harm[23] Source 4 phase B current twenty-third harmonic 10593 SRC 4 Ib Harm[24] Source 4 phase B current twenty-fourth harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-25...
Page 662

Source 5 phase A current nineteenth harmonic 10655 SRC 5 Ia Harm[20] Source 5 phase A current twentieth harmonic 10656 SRC 5 Ia Harm[21] Source 5 phase A current twenty-first harmonic A-26 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 663

Source 5 phase C current sixteenth harmonic 10718 SRC 5 Ic Harm[17] Source 5 phase C current seventeenth harmonic 10719 SRC 5 Ic Harm[18] Source 5 phase C current eighteenth harmonic C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-27...
Page 664

Source 6 phase B current thirteenth harmonic 10781 SRC 6 Ib Harm[14] Source 6 phase B current fourteenth harmonic 10782 SRC 6 Ib Harm[15] Source 6 phase B current fifteenth harmonic A-28 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 665

Breaker 1 arcing amp phase C 12048 Brk 1 Amp Max A kA2-cyc Breaker 1 amp max phase A 12050 Brk 1 Amp Max B kA2-cyc Breaker 1 amp max phase B C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-29...
Page 666

RTD input 5 actual value 13557 RTD Ip 6 RTD input 6 actual value 13558 RTD Ip 7 RTD input 7 actual value 13559 RTD Ip 8 RTD input 8 actual value A-30 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 667

60P 1 Comp Iop A Amps Phase current balance composite phase A operating current actual value 13832 60P 1 Comp Iop B Amps Phase current balance composite phase B operating current actual value C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-31...
Page 668

Capacitor control discharge time in seconds 14209 CAP 2 DISCHRG TIME seconds Capacitor control discharge time in seconds 14210 CAP 3 DISCHRG TIME seconds Capacitor control discharge time in seconds A-32 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 669

RxGOOSE Analog 10 RxGOOSE analog input 10 45604 RxGOOSE Analog 11 RxGOOSE analog input 11 45606 RxGOOSE Analog 12 RxGOOSE analog input 12 45608 RxGOOSE Analog 13 RxGOOSE analog input 13 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL A-33...
Page 670

RxGOOSE Analog 29 RxGOOSE analog input 29 45642 RxGOOSE Analog 30 RxGOOSE analog input 30 45644 RxGOOSE Analog 31 RxGOOSE analog input 31 45646 RxGOOSE Analog 32 RxGOOSE analog input 32 A-34 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 671: B.1 Radius Server Configuration

UR device for successful authentication, and the shortname is a short, optional alias that can be used in place of the IP address. client 10.0.0.2/24 { secret = testing123 shortname = private-network-1 In the <Path_to_Radius>\etc\raddb folder, create a file called dictionary.ge and add the following content. # ########################################################## GE VSAs ############################################################ VENDOR...
Page 672

Access Settings > Product Setup > Security. Configure the IP address and ports for the RADIUS server. Leave the GE vendor ID field at the default of 2910. Update the RADIUS shared secret as specified in the clients.conf file. Restart the relay for the IP address and port changes to take effect.
Page 673: C.1 Command Line Interface

When the Supervisor account is enabled, the 'Lock Relay' setting must first be changed to No before the putsettings, inservice, or reboot command can be used. This setting cannot be changed using the command line interface. • Use quotes ("") to enclose any parameter containing a space C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 674

"traditional" if not specified. Set <account> to "COMMANDS" or "SETTINGS". If not specified, the SETTINGS account is used. Example: SetupCLI URPC login -d "C30 Melbourne" -A traditional -a SETTINGS -w 1password1 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 675

Write the settings file <File> to the device <device>. For CyberSentry devices, putsettings is only supported for users with the "Administrator" role. Example: SetupCLI URPC putsettings -d C30 -f "C30 Markham.urs" C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 676

SetupCLI URPC getsettings -d demoDevice -f devicefile.urs SetupCLI URPC compare -f existingfile.urs -r devicefile.urs -o output.txt The output is similar to the following: Comparing settings file aaa.urs : C:\Users\Public\Public Documents\GE Power Management\URPC\Data\ with bbb.urs : C:\Users\Public\Public Documents\GE Power Management\URPC\Data\ Setting Name...
Page 677

SetupCLI URPC getsettings -d DEV@SETUP_CLI -f "example file.urs" SetupCLI URPC logout -d DEV@SETUP_CLI SetupCLI URPC exit DEV@SETUP_CLI has to be used as the device name in the commands followed by the 'adddevice' command. C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 678

COMMAND LINE INTERFACE APPENDIX C: COMMAND LINE INTERFACE C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 679: D.1 Warranty

This chapter provides the warranty and revision history. D.1 Warranty For products shipped as of 1 October 2013, GE Grid Solutions warrants most of its GE manufactured products for 10 years. For warranty details including any limitations and disclaimers, see the Terms and Conditions at http://www.gegridsolutions.com/multilin/warranty.htm...
Page 680

1601-9015-AF2 7.6x 31 October 2017 17-3935 Table D-2: Major changes for C70 manual version AF2 (English) Page Description General revision Added type W CPU module to order codes in chapter 2, installation chapter 3, Replace Front Panel section in chapter 10 Added Japanese and Polish languages and modules 6W and 6X to order codes in chapter 2.
Page 681

5-169 Updated number of FlexLogic lines from 512 to 1024 in FlexLogic Equation Editor settings section 5-180 Added I2t content to Phase TOC settings section and added logic diagram specific to C70 10-1 Added Monitoring section C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 682

REVISION HISTORY APPENDIX D: MISCELLANEOUS Page Description 10-2 Added Retrieve Files section Added Command Line Interface appendix C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 683

Full Load Current Communication Fiber Optic COMM Communications FPGA Field-programmable Gate Array COMP Compensated, Comparison FREQ Frequency CONN Connection Frequency-Shift Keying CONT Continuous, Contact File Transfer Protocol CO-ORD Coordination FlexElement™ C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 684

Power Line Carrier Line Pickup Positive Locked-Rotor Current POTT Permissive Over-reaching Transfer Trip Load Tap-Changer PRESS Pressure Low Voltage Primary PROT Protection Machine Parallel Redundancy Protocol Machine to Machine PSEL Presentation Selector C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 685

Transmission Control Protocol Thermal Capacity Used TD MULT Time Dial Multiplier TEMP Temperature TFTP Trivial File Transfer Protocol Total Harmonic Distortion Timer Time Overcurrent Time Overvoltage TRANS Transient TRANSF Transfer C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 686

ABBREVIATIONS C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 687

........5-20 FlexLogic operands ...............5-165 role for CyberSentry ................2-5 logic ......................5-240 Alarm LEDs ...................5-119 settings ....................5-239 specifications ..................2-21 Auxiliary voltage channel ............... 3-17 Auxiliary voltage metering ............. 6-18 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 688

IEC 60870-5-104 port ..............5-101 settings ....................5-280 Modbus port ..................5-50 specifications ..................2-22 SNTP port ..................5-111 TFTP port ................... 5-100 Web access port ................5-99 Comm status remaining connections ........6-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 689

................... 3-31 Copy of Copy of ..................10-7 settings ....................5-307 Copy settings for upgrading ............10-5 specifications ..................2-30 Copy settings to other device ............10-7 Decommission ..................10-29 Default password ................5-13 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 690

................... 3-61 IAC curves ..................5-192 Disk space required ................3-50 IEC curves ..................5-191 Display settings ..................5-25 IEEE curves ..................5-190 Disposal ....................10-30 Equipment mismatch error ............7-10 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 691

Frequency metering Flex State parameters actual values ..................6-19 actual values ..................6-8 specifications ..................2-26 settings ....................5-128 Frequency tracking ................6-22 specifications ..................2-23 Frequency, nominal .................5-141 FlexAnalog parameters ..............A-1 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 692

URs ..........2-8 self-test errors ................... 7-16 Harmonic content ..............6-19, 6-20 Harmonics actual values ................6-19, 6-20 Harmonics metering specifications ................. 2-25, 2-26 Heartbeat messages ............. 5-66, 5-69 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 693

............2-27 error messages ................. 7-12 IRIG-B ......................3-36 settings ....................5-296 IRIG-B specifications ...............2-27 specifications ..................2-28 RTD inputs ....................3-31 LC fiber .....................2-8, 3-12 virtual ....................5-294 LC fiber connector ................3-13 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 694

FlexLogic operands ..............5-169 ........10-14 logic diagram .................. 5-221 Messages settings ....................5-220 clear front panel ................5-298 specifications ..................2-19 error ....................... 7-10 errors and warnings in Engineer ..........4-68 viii C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 695

FlexLogic operands ...............5-168 explained ....................5-46 settings ....................5-187 settings ....................5-44 specifications ..................2-23 specifications ..................2-31 NOR gate explained ................4-82 Parity ......................5-41 NOT gate explained ................4-82 Part numbering ..................2-8 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 696

............4-43, 4-75 specifications ..................2-18 Process bus Phase undervoltage order codes for compatible URs ..........2-8 FlexLogic operands ...............5-171 overview ....................3-18 logic diagram ...................5-236 settings ....................5-235 specifications ..................2-21 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 697

RTD FlexAnalogs .................. A-30 Reboot relay RTD inputs using EnerVista ..................5-1 actual values ..................6-23 using relay ....................7-7 settings ....................5-306 Recloser curves ..............5-158, 5-195 Rules for passwords ................5-8 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 698

Server unavailable self-test ............7-15 Software Service life expected ................. 10-3 installation ................... 3-51 Service Report ..................1-2 interface explained ................4-1 system requirements ..............3-50 update or downgrade ..............10-13 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 699

..................5-5 see Phase, Neutral, and Ground TOCs Targets menu ................... 7-9 Timeout, connection ................5-50 Targets overview by device ............10-1 .......................10-9 TCP port number for web access ..........5-99 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL xiii...
Page 700

......7-15 User-programmable self-test settings ........ 5-121 Unauthorized setting write message ........7-15 Undervoltage characteristics .................5-234 phase ..................2-21, 5-235 Vibration testing specifications ........... 2-34 settings ....................5-235 Unexpected restart error ............... 7-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 701

Wire size CT/VT ......................3-17 F485 converter ...................3-50 G.703 interface ..................3-39 module 7S ....................3-39 modules 6X, 6W .................3-21 modules 7T, 7W .................3-43 power supply module ..............3-15 RS422 interface .................3-43 Wiring diagram ..................3-14 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...
Page 702

INDEX C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL...