Page 1 Grid Solutions Low Impedance Bus Differential System Instruction Manual Product version: 7.6x GE publication code: 1601-0115-AF1 (GEK-130992) E83849 LISTED IND.CONT. EQ. 52TL 1601-0115-AF1...
Page 2 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
Approvals ..........................2-28 2.5.16 Maintenance.........................2-28 3 INSTALLATION Unpack and inspect ....................3-1 Panel cutouts ......................3-2 3.2.1 Rear terminal layout ......................3-5 Wiring........................3-7 3.3.1 Typical wiring ......................... 3-7 3.3.2 Dielectric strength......................3-13 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 4 Settings file traceability....................4-12 Front panel interface ...................4-14 4.2.1 Front panel..........................4-14 4.2.2 Front panel display......................4-16 4.2.3 Front panel navigation keys ..................4-37 4.2.4 LED indicators........................4-39 4.2.5 Front panel labelling......................4-43 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 5 FlexLogic example ......................5-148 5.5.5 FlexLogic equation editor ....................5-153 5.5.6 FlexLogic timers .......................5-153 5.5.7 Non-volatile latches .......................5-153 Grouped elements....................5-154 5.6.1 Overview..........................5-154 5.6.2 Setting group 1.........................5-154 5.6.3 Bus differential........................5-155 5.6.4 Breaker failure (ANSI 50BF) ..................5-160 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 6 RxGOOSE analogs......................6-11 Records........................6-11 6.5.1 User-programmable fault reports ................6-11 6.5.2 Event records ........................6-12 6.5.3 Oscillography ........................6-13 Product information.....................6-14 6.6.1 Model information ......................6-14 6.6.2 Firmware revisions ......................6-14 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 7 Output logic and examples .................. 9-9 9.6.1 Output logic..........................9-9 9.6.2 Internal and external fault example................9-10 10 MAINTENANCE 10.1 Monitoring ......................10-1 10.1.1 Devices with Site Targets....................10-1 10.1.2 Data with Modbus Analyzer ..................10-1 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 8 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 viii B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 9: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 10: For Further Assistance
Website: http://www.gegridsolutions.com/multilin 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. When using the optional graphical front panel, the report instead can be generated by connecting a USB drive to the front panel.
Page 11 CHAPTER 1: INTRODUCTION FOR FURTHER ASSISTANCE Figure 1-1: Generate service report in EnerVista software B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 12 FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 13: Product Description
The B90 Low Impedance Bus Differential System is a microprocessor-based architecture that provides protection and metering for busbars with up to 24 feeders. The B90 protection system is a centralized architecture built on one B90 IED as per requirements of a particular application. The IED is a full-featured B90 and as such can be accessed and programmed individually.
Page 14: 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 (B90 web pages). The IEC 60870-5-104 protocol is supported on the Ethernet port.
Page 15 Time synchronization over IRIG-B or IEEE 1588 DNP 3.0 or IEC 60870-5-104 communications Time synchronization over SNTP Dynamic bus replica User definable displays End fault protection User-programmable fault reports Event recorder User-programmable LEDs B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 16: Security
The B90 supports password entry from a local or remote connection. Local access is defined as any access to settings or commands via the front panel interface. This includes both keypad entry and the through the front panel RS232 port.
Page 17 |--------------- Security (CyberSentry) |--------------- Supervisory See table notes See table notes |--------------- Display Properties |--------------- Clear Relay Records (settings) |--------------- Communications |--------------- Modbus User Map |--------------- Real Time Clock |--------------- Oscillography B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 18 |---------- Protection Summary Commands |---------- Virtual Inputs |---------- Clear Records |---------- Set Date and Time User Displays Targets Actual Values |---------- Front panel labels designer |---------- Status |---------- Metering |---------- Transducer I/O B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 19: Order Codes
2.3 Order codes A B90 protection system consists of several UR-series B90 IEDs as per user needs and system configuration. At least three IEDs are required to provide differential and other protection functions for phases A, B, and C of the busbar. The fourth IED is required for breaker failure functionality and isolator status monitoring as well as extra input and output capability.
Page 20 B90 IEDs. The B90 is provided with an option of protecting 8, 16, or 24-feeder busbars. When ordered as an eight-feeder protection system, the B90 is configurable for up to eight-input bus differential, regardless of the number of physical current inputs available in the B90 IEDs.
Page 21 + IEC 61850 IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection + breaker failure + IEC 61850 IEC 60870-5-103 + six-zone 8-feeder bus protection B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 22 IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection + breaker failure + IEC 61850 IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection + breaker failure + IEC 61850 2-10 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 23 7P Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, Laser 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode Laser 7R G.703, 1 Channel G.703, 2 Channels RS422, 1 Channel 7W RS422, 2 Channels B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-11...
Page 24: 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 B90 relay. The modules specified in the order codes for the B90 are available as replacement modules for the B90.
Page 25: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-13...
Page 26 The A/D 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. 2-14 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 27: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-15...
Page 28: Protection Elements
0.5% of reading or 1% of nominal (whichever is greater) above 2.0 × CT 1.5% of reading 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) TD multiplier: 0.00 to 600.00 in steps of 0.01...
Page 29: User-Programmable Elements
0 to 60000 (ms, sec., min.) in steps of 1 FLEXCURVES™ Number: 4 (A through D) Reset points: 40 (0 through 1 of pickup) Operate points: 80 (1 through 20 of pickup) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-17...
Page 30: Monitoring
Dropout delay: 0.000 to 999999.999 s in steps of 0.001 Timing accuracy: ±3% or ±4 ms, whichever is greater 2.5.3 Monitoring OSCILLOGRAPHY Maximum records: Sampling rate: 64 samples per power cycle 2-18 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 31: Metering
1.00 to 24000.00 Relay burden: < 0.25 VA at 120 V Conversion range: 1 to 275 V Voltage withstand: continuous at 260 V to neutral 1 min/hr at 420 V to neutral B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-19...
Page 32: Power Supply
10 to 10000 in steps of 1 Alarm threshold: 1 to 1000 in steps of 1 2.5.6 Power supply LOW RANGE Nominal DC voltage: 24 to 48 V Minimum DC voltage: 20 V 2-20 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 33: Outputs
Break (DC resistive as per IEC61810-1): Voltage Current 24 V 48 V 1.6 A 125 V 0.4 A 250 V 0.2 A Operate time: < 4 ms Contact material: silver alloy B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-21...
Page 34 (excluding voltage monitor circuit current): 100 µA Maximum continuous current: 5 A at 45°C; 4 A at 65°C Make and carry: for 0.2 s: 30 A as per ANSI C37.90 for 0.03 s: 300 A 2-22 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 35: Communications
–30 dBm 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-23...
Page 36: 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 2-24 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 37: Cybersentry Security
Compensated difference in transmitting and receiving (channel asymmetry) channel delays using GPS satellite clock: 10 ms 2.5.10 CyberSentry security OPTIONS Software options: Level 1 2.5.11 Graphical front panel DISPLAY Type: color graphical back-lit LCD display Size: 7 inches (17.8 cm) Resolution: 800 by 480 pixels B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-25...
Page 38: Environmental
95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6 days) OTHER Altitude: 2000 m (maximum) Pollution degree: Overvoltage category: Ingress protection: IP20 front, IP10 back Noise: 0 dB 2-26 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 39: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-27...
Page 40: 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. 2-28 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 41: 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 B90 Instruction Manual and the UR Family Communications Guide, for the applicable firmware version, at http://www.gegridsolutions.com/multilin/manuals/index.htm...
Page 42: Panel Cutouts
Maintenance > Change Front Panel. The B90 is available as a 19-inch rack horizontal mount unit with a removable front panel. The front panel can be specified as either standard or enhanced at the time of ordering. The enhanced front panel contains additional user-programmable pushbuttons and LED indicators.
Page 43 CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-1: Horizontal dimensions (enhanced front panel) Figure 3-2: Horizontal mounting (enhanced and graphical front panel) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 44 PANEL CUTOUTS CHAPTER 3: INSTALLATION Figure 3-3: Horizontal mounting and dimensions (standard front panel) Figure 3-4: Horizontal dimension (graphical front panel) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 45: Rear Terminal Layout
Two-slot wide modules take their slot designation from the first slot position (nearest to CPU module), indicated by an arrow marker on the terminal block. The figure shows an example of rear terminal assignments. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 46 Wire connections to these two modules at 13 inch-pounds. Figure 3-6: CPU modules and power supply The following figure shows the optical connectors for CPU modules. Figure 3-7: LC fiber connector (left) and ST fiber connector (right) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 47: Wiring
CHAPTER 3: INSTALLATION WIRING 3.3 Wiring 3.3.1 Typical wiring Figure 3-8: B90 is a multi-IED protection system B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 48 The wiring diagrams on the next four pages are based on the following order code: B90-H02-HCL-F8H-H6H-L8H-N6A-S8H-U6H-W7H. The purpose of these diagrams is to provide examples of how the B90 is typically wired, not specifically how to wire your own relay. See the sections following the wiring diagrams for examples on connecting your relay correctly based on your relay configuration and order code.
Page 49 CHAPTER 3: INSTALLATION WIRING Figure 3-9: Typical wiring diagram (Phase A; T module shown for CPU) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 50 WIRING CHAPTER 3: INSTALLATION Figure 3-10: Typical wiring diagram (Phase B; T module shown for CPU) 3-10 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 51 CHAPTER 3: INSTALLATION WIRING Figure 3-11: Typical wiring diagram (Phase C; T module shown for CPU) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-11...
Page 52 WIRING CHAPTER 3: INSTALLATION Figure 3-12: Typical wiring diagram (breaker fail and isolator monitoring; T module shown) 3-12 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 53: Dielectric Strength
The power supply module can be ordered for two possible voltage ranges, and the B90 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 54: Ct And Vt Modules
1 to 50000 A primaries and 1 A or 5 A secondaries may be used. Each B90 voltage input is intended for monitoring a single-phase voltage. The may include phase voltages or neutral voltage from the open-delta VT.
Page 55: Contact Inputs And Outputs
“On = 1” when the current flowing through the closed contact exceeds about 80 to 100 mA. The voltage monitor is intended to check the health of the overall trip circuit, and the current monitor can be used to seal-in B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-15...
Page 56 500 Ω, 10 W resistor is appropriate. In this configuration, the voltage across either the form-A contact or the resistor can be used to monitor the state of the output. 3-16 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 57 2 Inputs Fast Form-C ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs Fast Form-C ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-17...
Page 58 2 Inputs 2 Outputs Solid-State Solid-State ~6a, ~6c 2 Inputs 2 Outputs Not Used Not Used ~7a, ~7c 2 Inputs 2 Outputs Solid-State Solid-State ~8a, ~8c 2 Inputs Not Used 3-18 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 59 CHAPTER 3: INSTALLATION WIRING Figure 3-16: Contact input and output module wiring (Sheet 1 of 2) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-19...
Page 60 CHAPTER 3: INSTALLATION Figure 3-17: Contact input and output module wiring (Sheet 2 of 2) For proper functionality, observe the polarity shown in the figures for all contact input and output connections. 3-20 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 61 B90 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 B90 input and the debounce time setting in the B90 relay is low enough.
Page 62 This operation of contact inputs also can be prevented by using the Auto-Burnish contact inputs or contact inputs with active impedance. Figure 3-20: Contact input connected to a contact output with resistor (R2) across the input 3-22 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 63 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 64 The auto-burnish feature can be disabled or enabled using the DIP switches found on each daughter card. There is a DIP switch for each contact, for a total of 16 inputs. 3-24 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 65 Contact inputs susceptible to parasitic capacitance caused by long cable runs affected by switching surges from external circuits 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 66: Rs232 Port
EnerVista UR Setup software provided with the relay. Cabling for the RS232 port is shown in the following figure for both 9-pin and 25-pin connectors. The baud rate for this port can be set, with a default of 115200 bps. 3-26 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 67: Cpu Communication Ports
3.3.7 CPU communication ports 3.3.7.1 Overview In addition to the front panel RS232 port, there is a rear RS485 communication port. The CPU modules do not require a surge ground connection. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-27...
Page 68 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 B90 COM terminal (#3); others function correctly only if the common wire is connected to the B90 COM terminal, but insulated from the shield.
Page 69: 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. Using the IRIG-B input, the B90 operates an internal oscillator with 1 µs resolution and accuracy.
Page 70: Direct Input And Output Communications
UR-series relays with the following connections: UR1-Tx to UR2-Rx, UR2-Tx to UR3-Rx, UR3-Tx to UR4-Rx, and UR4-Tx to UR1-Rx. A maximum of 16 URs can be connected in a single ring. 3-30 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 71 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-31...
Page 72 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. 3-32 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 73: Fiber: Led And Eled Transmitters
The following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser modules. Figure 3-33: 7x Laser fiber modules The following figure shows configuration for the 2I and 2J fiber-laser modules. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-33...
Page 74: Interface
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. 3-34 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 75 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-35...
Page 76 (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. 3-36 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 77 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 3-40: G.703 dual loopback mode B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-37...
Page 78: Rs422 Interface
(data module 1) connects to the clock inputs of the UR RS422 interface in the usual way. In 3-38 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 79 Figure 3-43: Timing configuration for RS422 two-channel, three-terminal application Data module 1 provides timing to the B90 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 80: Rs422 And Fiber Interface
When using a laser interface, attenuators can be necessary to ensure that you do not exceed maximum optical input power to the receiver. Figure 3-45: RS422 and fiber interface connection 3-40 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 81: And Fiber Interface
Connection — as per all fiber optic connections, a Tx to Rx connection is required The UR-series C37.94 communication module can be connected directly to any compliant digital multiplexer that supports the IEEE C37.94 standard. The figure shows the concept. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-41...
Page 82 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of B90 communication for two and three terminal applications.
Page 83 Figure 3-50: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-43...
Page 84: C37.94Sm Interface
Fiber optic cable length — Up to 11.4 km • Fiber optic connector — Type ST • Wavelength — 1300 ±40 nm • Connection — As per all fiber optic connections, a Tx to Rx connection is required 3-44 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 85 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of B90 communication for two and three terminal applications.
Page 86 When the clips have locked into position, the module is inserted fully. Figure 3-53: C37.94SM 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. 3-46 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 87: 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: B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-47...
Page 88: 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. 3-48 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 89: System Requirements
This device (catalog number F485) connects to the computer using a straight-through serial cable. A shielded twisted-pair (20, 22, or 24 AWG) connects the F485 converter to the B90 rear communications port. The converter terminals (+, –, GND) are connected to the B90 communication module (+, –, COM) terminals. See the CPU Communication Ports section in chapter 3 for details.
Page 90: Install Software
Click the Next button to begin the installation. The files are installed in the directory indicated, and the installation program automatically creates icons and adds an entry to the Windows start menu. 3-50 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 91: Add Device To Software
3.7 Add device to software You connect remotely to the B90 through the rear RS485 or Ethernet port with a computer running the EnerVista UR Setup software. The B90 also can be accessed locally with a computer through the front panel RS232 port or the rear Ethernet port using the Quick Connect feature.
Page 92 From the Windows desktop, right-click the My Network Places icon and select Properties to open the network 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. 3-52 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 93 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 B90 relay and the last number different (in this example, 1.1.1.2).
Page 94 Minimum = 0ms, Maximum = 0ms, Average = 0 ms Pinging 1.1.1.1 with 32 bytes of data: verify the physical connection between the B90 and the computer, and double-check the programmed IP address in setting, then repeat step 2. Product Setup  Communications  Network  IP Address...
Page 95 Click the Quick Connect button to open the window. Select the Ethernet interface and enter the IP address assigned to the B90, 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 96: Configure Serial Connection
For the RS232 connection, a computer with an RS232 port and a serial cable are required. To use the RS485 port 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 97: Configure Ethernet Connection
SEL-2032. This option enables display of a terminal window to allow interaction with the other device. 11. Click the Read Order Code button to connect to the B90 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 B90 ports.
Page 98 12. If using a gateway to connect to the device, select Yes from the drop-down list. 13. Click the Read Order Code button to connect to the B90 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 values entered in the previous steps correspond to the relay setting values, and also ensure that the same IP address is not assigned to multiple B90 ports.
Page 99: Configure Modem Connection
CHAPTER 3: INSTALLATION ADD DEVICE TO SOFTWARE The device has been configured for Ethernet communications. Proceed to the Connect to the B90 section to begin communications. 3.7.4 Configure modem connection A modem connection allows a computer to communicate with a UR device over phone lines.
Page 100: Connect To The B90
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 B90 ports, for example under Settings > Product Setup > Communications > Network.
Page 101: Use Quick Connect Via The Front Panel Rs232 Port
Connect a nine-pin to nine-pin RS232 serial cable to the computer and the front panel RS232 port. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista DVD or online from http://www.gegridsolutions.com/multilin). See the software installation section if not already installed.
Page 102: Use Quick Connect Via A Rear Ethernet Port
Connect" and displays them in the Online Window. Expand the sections to view data directly from the B90 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 B90.
Page 103: Set Up Cybersentry And Change Default Password
IID — Instantiated IED capability description file — Actual settings on UR • CID — Configured IED description file — Settings sent to the UR (may or may not be actual settings) The import is done in the Offline Window area. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-63...
Page 104: 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 105: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-65...
Page 106 CONNECT TO D400 GATEWAY CHAPTER 3: INSTALLATION 3-66 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 107: Interfaces
The EnerVista UR Setup software is provided with every B90. This chapter outlines the EnerVista software interface features. The EnerVista UR Setup Help File also provides details for getting started and using the software interface.
Page 108: Event Viewing
IP Address IP Subnet Mask IP Routing When a settings file is loaded to a B90 that is in-service, the following sequence occurs: The B90 takes itself out of service. The B90 issues a UNIT NOT PROGRAMMED major self-test error.
Page 109: 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 110: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 111: Settings Templates
Right-click the selected device or settings file and select the Template Mode > Create Template option. The settings file template is now enabled and the file menus displayed in light blue. A message displays. The settings file is now in template editing mode. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 112 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 is displayed against a yellow background. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 113 Select an installed device or a settings file from the left menu of the EnerVista UR Setup window. Apply the template by selecting the Template Mode > View In Template Mode option. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 114 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 115: Secure And Lock Flexlogic Equations
4.1.8.1 Lock FlexLogic equations To lock individual entries of a FlexLogic equation: Right-click the settings file or online device and select the Template Mode > Create Template item to enable the settings template feature. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 116 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 117 Right-click the setting file in the offline window area and select the Edit Device Properties item. The window opens. Figure 4-12: Settings file properties window B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-11...
Page 118: Settings File Traceability
When a settings file is transferred to a B90 device, the date, time, and serial number of the B90 are sent back to EnerVista UR Setup and added to the settings file on the local computer. This information can be compared with the B90 actual values at any later date to determine if security has been compromised.
Page 119 4.1.9.2 Online device traceability information The B90 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 120: 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. 4-14 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 121 The USB port is the square type B. User-programmable pushbuttons 9 to 16 can be programmed among the 10 pushbuttons on the left and right sides of the display. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-15...
Page 122: 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. 4-16 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 123 The footer dynamically labels the Tab, or control, pushbuttons immediately below. Page content displays between the header and footer. The pages are arranged for navigation in a hierarchical structure similar to that used for the enhanced and standard front panels. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-17...
Page 124 Active targets symbol. View error messages by pressing the Menu Tab pushbutton, then accessing the TARGETS menu. 4-18 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 125 Factory default names are SLD 1, SLD 2, and so on. 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-19...
Page 126 Single-line diagram example The following example outlines how to create a circuit breaker diagram, then how to close the second circuit breaker. The figure shows six switches, two breakers, feeder, and ground. 4-20 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 127 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. Double-click to edit properties. Rotate switches SW569 and SW5682 to 270 degrees.
Page 128 Add the two lower switches. Leave rotation at 0 degrees. Add the breakers by clicking the GE breaker symbol in the toolbar, then clicking in the window. Double-click to edit properties, rotating 90 degrees and setting the color to red (open).
Page 129 Load — Opens single-line diagram files, which replaces all five windows with that in the file To save drawings as a separate file, click File > Save As. The file is saved in the .mif format. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-23...
Page 130 Up to 32 static symbols can be used per single-line diagram. To add a symbol, click it in the toolbox, then click in the window. Double-click the symbol to open its properties window to set orientation. 4-24 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 131 The symbols assume horizontal symbol orientation, red - closed color, and green - open scheme. With vertical orientation, they are rotated 90 degrees. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-25...
Page 132 (horizontal or vertical), color scheme (red - closed, or red - open), and assigned side button (if any). If the selected breaker or disconnect element 4-26 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 133 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 4-33: Symbols when status is bad The following figures show the orientation available for the static components. The default position is 0 degrees. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-27...
Page 134 FRONT PANEL INTERFACE CHAPTER 4: INTERFACES Figure 4-34: Single-line diagram static symbol orientation (sheet 1 of 2) 4-28 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 135 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 a hardware user- programmable pushbutton. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-29...
Page 136 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 137 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-31...
Page 138 Alarm types of each window can be configured as Self Reset, Latched, or Acknowledgeable. In Self Reset mode, the window lighting follows the state of the configured FlexLogic operand. The self-reset mode alarm sequence conforms to ISA-18.1-1979 (R2004) standard type A 4 5 6. 4-32 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 139 In Acknowledgeable mode, both Off to On and On to Off state changes in the configured operand cause the background to flash; the window must be acknowledged/reset to cancel flashing. This mode conforms to ISA-18.1-1979 (R2004) standard type R-6. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-33...
Page 140 The last window is not configured and displays blank/grey. In order for the Ethernet and battery alarms to work, the corresponding self-test alarms have been enabled under Settings > Product Setup > User-Programmable Self Tests (not shown). 4-34 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 141 AC source. They display on the graphical front panel using the Metering Tab pushbutton. The path to the editor is Settings > Product Setup > Graphical Panel > Metering Editor. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-35...
Page 142 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 B90, where a FlexAnalog is an analog parameter •...
Page 143: Front Panel Navigation Keys
The decimal key initiates and advances to the next character in text edit mode or enters a decimal point. key can be pressed at any time for context-sensitive help messages. HELP B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-37...
Page 144 Tab pushbutton — Five pushbuttons under the display. They navigate through the page hierarchy, and on some pages activate other actions. The display footer dynamically labels the page or action that is activated by the tab pushbutton. 4-38 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 145: Led Indicators
SETTINGS  INPUT/OUTPUTS  RESETTING keys are not used in this unit. USER Figure 4-46: B90 LED panel for enhanced front panel The status indicators in the first column are as follows: • 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 >...
Page 146 Support for applying a customized label beside every LED is provided. Default labels are shipped in the label package of every B90, 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 147 • OTHER — Indicates a composite function was involved, BUS 5 OP was asserted, or BUS 6 OP was asserted. For the B90, a composite function means either any Digital Element OP or any TRIP BUS OP. User-programmable indicators The second and third panels provide 48 amber LED indicators whose operation is controlled by the user. Custom labelling can be done.
Page 148 • ALARM — Indicates that the selected FlexLogic operand serving as an alarm output has operated Figure 4-50: Example of LEDs on graphical front panel 4-42 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 149: Front Panel Labelling
ZONE 6 — LED 14 — Indicates bus differential zone 6 was involved 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 150 LED labels. Use the tool with the printed side containing the GE part number facing the user. The label package shipped with every B90 contains the three default labels, the custom label template sheet, and the label removal tool.
Page 151 Bend the tab at the center of the tool tail as shown. To remove the LED labels from the B90 front panel and insert the custom labels: Use the knife to lift the LED label and slide the label tool underneath. Ensure that the bent tabs are pointing away from the relay.
Page 152 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 B90 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 4-46 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM –...
Page 153 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-47...
Page 154 To create LED and pushbutton labels for a standard front panel: In the EnerVista software, if the B90 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 155 4.2.5.3 Graphical front panel The B90 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 156: 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 4-50 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 157 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-51...
Page 158: 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. 4-52 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 159 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-53...
Page 160 Use the Up or Down pushbutton to select SETTINGS, then press the Right or ENTER pushbutton. Figure 4-56: Settings menu With PRODUCT SETUP selected, press the Right or ENTER pushbutton. 4-54 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 161 As the FLASH MESSAGE TIME setting accepts a numerical value, a keypad displays. The time is to be changed to 4.0 seconds. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-55...
Page 162 The shift key (up arrow on keyboard) is green upon activation, while the keyboard letters switch to upper case. The globe key (shown greyed-out) toggles the keyboard language between English and another display language selected, for example between English and French. 4-56 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 163: View Actual Values
Each phasor page has a name, which consists of the value of the SOURCE # NAME setting appended with " Phasors." Phasor pages that have no configured CTs or VTs do not have a Tab pushbutton, and phasor pages that have no configured cells cannot be displayed. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-57...
Page 164: Change Passwords
CyberSentry passwords, see the previous chapter or the Settings > Product Setup > Security > CyberSentry section in the next chapter. The B90 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.
Page 165 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 B90, 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 166: 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 B90 does not allow settings or command level LOCAL ACCESS DENIED access via the front panel for five minutes.
Page 167: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-61...
Page 168 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 169: 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-63...
Page 170 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 171 Add the input blocks to the logic diagram. For example, click the I/O Tokens tab on the right, click the Input element, then click in the logic sheet to add it. Or drag-and-drop it. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-65...
Page 172 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 173 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-67...
Page 174 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 175 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 176 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 177 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 4-80: Code optimization results B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-71...
Page 178 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 179: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-73...
Page 180: 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 181: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-75...
Page 182: 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 183 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 184 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 185 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-79...
Page 186: 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 187 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-81...
Page 188 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 189 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-83...
Page 190 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 191 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 4-85...
Page 192 FLEXLOGIC DESIGN USING ENGINEER CHAPTER 4: INTERFACES 4-86 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 193: Settings
 MODBUS USER MAP See page 5-99    REAL TIME See page 5-99   CLOCK  USER-PROGRAMMABLE See page 5-104   FAULT REPORT  OSCILLOGRAPHY See page 5-105   B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 194   SETTINGS  TRIP BUS See page 5-179   CONTROL ELEMENTS   SETTING GROUPS See page 5-181     DIGITAL ELEMENTS See page 5-182   B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 195: Overview
The previous chapter explains how to read a logic diagram, and the abbreviations used in a diagram are defined in the Abbreviations chapter. Some settings are specified in per-unit (pu) calculated quantities: pu quantity = (actual quantity) / (base quantity) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 196 Not every operand of a given element in a UR relay generates events, only the major output operands. Elements, asserting output per phase, log operating phase output only, without asserting the common three-phase operand event. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 197: Product Setup
B90 FUNCTION and logic), download the same file to all the B90 IEDs, and modify the settings accordingly to finalize the application. This means that some modules, for example CT/VT module when set to "Logic," can become unusable. Communications and settings are typically modified when downloading the common B90 setting file.
Page 198  EVENTS: Disabled The B90 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 199 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 B90, 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 200 FlexLogic operands are set to “On.” These operands are returned to the “Off” state upon expiration of the lockout. DENIED — This setting specifies the time that the B90 locks out password access after the number PASSWORD LOCKOUT DURATION of invalid password entries specified by the setting has occurred.
Page 201 CHAPTER 5: SETTINGS PRODUCT SETUP The B90 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 202 The EnerVista security system allows an administrator to manage access privileges of multiple users of EnerVista. It is disabled by default to allow access to the device immediately after installation. When security is disabled, all users have administrator access. GE recommends enabling the EnerVista security before placing the device in service. 5-10...
Page 203 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 204 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. 5-12 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 205 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 B90 access using either a server or the device. Access to functions depends on user role.
Page 206 When the "Device" button is selected, the B90 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 B90 device.
Page 207 For the Device > Settings > Product Setup > Supervisory option, the panel looks like the following. Figure 5-3: Supervisory panel For the Security panel, the following settings are available. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-15...
Page 208 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. 5-16 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 209 Range: Administrator, Engineer, Supervisor,   None Operator, Factory (for factory use only), None  CHANGE LOCAL See page 5-18   PASSWORDS  SESSION See page 5-19   SETTINGS B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-17...
Page 210 • Observer — This role has read-only access to all B90 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 211 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 212 SETTINGS  PRODUCT SETUP  SECURITY  SUPERVISORY  SELF TESTS  SELF TESTS  FAILED See below   AUTHENTICATE  FIRMWARE LOCK: Range: Enabled, Disabled  Enabled SETTINGS LOCK: Range: Enabled, Disabled  Enabled 5-20 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 213 After making any required changes, log out. When changing settings offline, ensure that only settings permitted by the role that performs the settings download are changed because only those changes are applied. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-21...
Page 214 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 Role Log off 5-22 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 215: Display Properties
CHAPTER 5: SETTINGS PRODUCT SETUP In addition to supporting syslog, a B90 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 216: Graphical Front Panel
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 B90 applies a cut-off value to the magnitudes and angles of the measured currents.
Page 217 The path is Settings > Product Setup > Graphical Panel > Home Page. The menu does not display when there is no graphical front panel. Figure 5-4: Home page with product information Figure 5-5: Home page settings B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-25...
Page 218 (for example hh:mm) is not affected by the selected time format. To set the date and time, access Synchronize Devices in the software or Settings > Product Setup > Real Time Clock. 5-26 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 219 Screen Saver Intensity setting. When in rolling mode, rolling continues while the screen saver is active. The screen saver terminates when rolling mode terminates. To disable the screen saver, set the delay to 0. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-27...
Page 220 Metering Tab pushbutton on the graphical front panel. The Metering Editor is not used. The figures show setup and preview for monitoring actual values in a table on the graphical front panel. 5-28 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 221 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 B90. They are inputs for all five metering pages, not just the current page.
Page 222 Default: Black Set the text color to display in the specified cell. BACK COLOR Range: 24-bit color selector Default: Grey Set the background color to display for the specified cell. 5-30 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 223 Range: 1 to 12 in steps of 1 Default: 1 This setting specifies the number of integers in the displayed metered value. It can be used to provide for leading character spacing of the display value. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-31...
Page 224 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. 5-32 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 225 Range: up to 20 alphanumeric characters Default: Page 1...Page 8 Up to 20 characters can be input as the name of each annunciator page. The number of pages depends on the Layout. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-33...
Page 226 The background color to display for any triggered cell, for example when alarm is triggered. Configure Range: Configure Default: Configure The Configure button becomes active when the CONTENT field is set to "Actual" or "Mixed." The window configures metered values. 5-34 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 227 For the Ethernet and IRIG-B failure operation to work, these functions also have been enabled under Settings > Product Setup > User-Programmable Self Tests. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-35...
Page 228: Clear Relay Records
SETTINGS  PRODUCT SETUP  CLEAR RELAY RECORDS  CLEAR RELAY CLEAR USER REPORTS: Range: FlexLogic operand   RECORDS CLEAR EVENT RECORDS: Range: FlexLogic operand  CLEAR OSCILLOGRAPHY: Range: FlexLogic operand  5-36 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 229: Communications
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 B90 responds to rising edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.
Page 230 5.3.6.3 Ethernet network topology The B90 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 231 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-39...
Page 232 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 5-14: Multiple LANS, no redundancy 5-40 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 233 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 234 2 is performed. The delay in switching back ensures that rebooted switching devices connected to the B90, 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 235 UR 7 redundancy Failover is selected for redundancy. 5.3.6.6 Parallel Redundancy Protocol (PRP) The B90 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 236 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: 5-44 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 237 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: B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-45...
Page 238  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 5-46 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 239 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 B90 is restarted. When it is set to 0, use the front panel or serial port to communicate with the relay.
Page 240 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 5-48 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 241 Range: 0 to 32 in steps of 1  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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-49...
Page 242 DNP ADDRESS unique address to each DNP slave. The B90 can specify a maximum of five clients for its DNP connections. These are IP addresses for the controllers to which the B90 can connect. The settings follow. SETTINGS  PRODUCT SETUP  COMMUNICATIONS  DNP PROTOCOL  DNP NETWORK CLIENT ADDRESSES ...
Page 243 DNP TCP connection for greater than the time specified by this setting, the connection is aborted by the B90. This frees up the connection to be re-used by a client. For any change to take effect, restart the relay.
Page 244 60870-5-104 point lists must be in one continuous block, any points assigned after the first “Off” point are ignored. 5.3.6.12 IEC 61850 protocol The B90 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 245 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 B90 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 246 Figure 5-18: IEC 61850 panel Opening the IEC 61850 window while online causes the UR Setup software to retrieve and import an SCL file from the B90. 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 247 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 B90. Upon receipt, the B90 checks the CID file for correctness, going out of service, then back into service when the CID file is accepted.
Page 248 Default: TEMPLATE The value entered sets the IED name used by IEC 61850 for the B90. 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 249 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 B90. 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 250 Protection logical device has been set to instance name "Prot", the function-related name "Feeder1Prot" and the configuration revision "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. 5-58 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 251 Figure 5-22: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-59...
Page 252 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 5-60 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 253 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-61...
Page 254 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 5-62 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 255 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-63...
Page 256 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. 5-64 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 257 VID values of 0 and 1 are assigned by IEEE 802.1Q to other functions and are not to be used for GOOSE. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-65...
Page 258 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. 5-66 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 259 (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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-67...
Page 260 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. 5-68 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 261 <GoCBName> is the name of the publishing control block. The B90 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 262 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). 5-70 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 263 (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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-71...
Page 264 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: 5-72 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 265 Default: None 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-73...
Page 266 (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 5-30: RxGOOSE Analog Inputs panel There are 32 RxGOOSE analog inputs. 5-74 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 267 Range: 0.000 to 1000000000.000 in steps of 0.001 Default: 1.000 This setting specifies the per-unit base value for other B90 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 268 RptEna attribute is false. Buffered and unbuffered reports Navigate to Settings > Product Setup > Communications > IEC 61850 > Reports > Buffered Reports or Unbuffered Reports. 5-76 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 269 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-77...
Page 270 Control blocks and data sets can be pre-configured by sending the B90 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 271 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-79...
Page 272 DataSets Navigate to Settings > Product Setup > Communications > IEC 61850 > DataSets. 5-80 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 273 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-81...
Page 274 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. 5-82 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 275 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-83...
Page 276 However, a tabulation of the analog values and their associated deadband setting can be found in the UR Family Communications Guide. 5-84 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 277 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-85...
Page 278 UR reboot immediately following the receipt of a valid CID file. This setting is not mapped into the IEC 61850 information model, but sets the value of SettingControl element attribute actSG in SCL files. 5-86 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 279 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 B90 reports to the client the breaker 1 position at the end of the command sequence.
Page 280 This setting selects the FlexLogic operand whose value is mapped into the IEC 61850 data attribute <LDName>/GGIO1.Ind001.stVal. See the FlexLogic section in this chapter for a list of FlexLogic operands. 5-88 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 281 Navigate to Settings > Product Setup > Communications > IEC 61850 > GGIO > GGIO4 > GGIO4.AnIn1 to access the settings for the first GGIO4 value. The settings and functionality for the others are similar. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-89...
Page 282 <LDName>/GGIO4.AnIn01.instMag.f. This setting is stored as an IEEE 754 / IEC 60559 floating point number. Because of the large range of this setting, not all possible values can be stored. Some values are rounded to the closest possible floating point number. 5-90 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 283 PRODUCT SETUP File transfer by IEC 61850 The B90 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 284 NUMBER: 0 The Trivial File Transfer Protocol (TFTP) can be used to transfer files from the B90 over a network. The B90 operates as a TFTP server. TFTP client software is available from various sources, including Microsoft Windows NT. The dir.txt file obtained from the B90 contains a list and description of all available files, for example event records and oscillography.
Page 285 COMMUNICATIONS  PROTOCOL connected to a maximum of two masters (usually either an RTU or a SCADA master station). Since the B90 maintains two sets of IEC 60870-5-104 data change buffers, ideally no more than two masters actively communicate with the B90 at one time.
Page 286 0.0.0.0 The B90 can specify a maximum of five clients for its IEC 104 connections. These are IP addresses for the controllers to which the B90 can connect. A maximum of two simultaneous connections are supported at any given time.
Page 287 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 B90 sets the invalid bit in the time stamp of a time-tagged message.
Page 288 OFFSET: 0 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. 5-96 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 289 FlexAnalog operands. The measurands sent are voltage, current, power, power factor, and frequency. If any other FlexAnalog is chosen, the B90 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 290 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 B90. 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 291: 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 B90 in a web browser and click the option. 5.3.8 Real-time clock 5.3.8.1 Menu SETTINGS ...
Page 292 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 B90 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 293 See the Order Codes section in chapter 2 for details. The B90 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 294 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. 5-102 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 295 B90 clock is closely synchronized with the SNTP/ NTP server. It takes up to two minutes for the B90 to signal an SNTP self-test error if the server is offline.
Page 296: 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 (B90), 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 297: Oscillography
The following table provides sample RECORDS  OSCILLOGRAPHY configurations with corresponding cycles/record. The minimum number of oscillographic records is three. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-105...
Page 298 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 5-46: Quick selection window 5-106 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 299  LEDS   TRIP & ALARM LEDS See page 5-110    EVENT CAUSE LED 1 See page 5-111     EVENT CAUSE LED 9   B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-107...
Page 300 The test responds to the position and rising edges of the control input defined by the 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. 5-108 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 301 2. When stage 2 is completed, stage 3 starts automatically. The test can be cancelled at any time by pressing the pushbutton. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-109...
Page 302: User-Programmable Leds
LED 8 operand LED 20 operand LED 9 operand LED 21 operand LED 10 operand LED 22 operand LED 11 operand LED 23 operand LED 12 operand LED 24 operand 5-110 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 303: User-Programmable Self-Tests
Range: Disabled, Enabled  FUNCTION: Disabled SFP MODULE FAIL Range: Disabled, Enabled  FUNCTION: Disabled BATTERY FAIL Range: Disabled, Enabled  FUNCTION: Enabled SNTP FAIL Range: Disabled, Enabled  FUNCTION: Enabled B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-111...
Page 304: Control Pushbuttons
The location of the control pushbuttons are shown in the following figures. Figure 5-48: Control pushbuttons (enhanced front panel) An additional four control pushbuttons are included on the standard front panel when the B90 is ordered with the 12 user- programmable pushbutton option.
Page 305: User-Programmable Pushbuttons
Range: up to 20 alphanumeric characters  USER PB 1 PUSHBTN 1 ON TEXT: Range: up to 20 alphanumeric characters  PUSHBTN 1 OFF TEXT: Range: up to 20 alphanumeric characters  B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-113...
Page 306  EVENTS: Disabled The B90 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 307 PUSHBTN 1 SET interface. The state of each pushbutton is stored in non-volatile memory and maintained through a loss of control power. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-115...
Page 308 “Self-reset” as the pushbutton operand status is implied to be “Off” upon its PUSHBUTTON 1 FUNCTION release. The length of the “Off” message is configured with the PRODUCT SETUP  DISPLAY PROPERTIES  FLASH MESSAGE 5-116 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 309 — 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-117...
Page 310 PRODUCT SETUP CHAPTER 5: SETTINGS Figure 5-54: User-programmable pushbutton logic (Sheet 1 of 2) 5-118 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 311: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-119...
Page 312: 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. 5-120 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 313 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-121...
Page 314: Direct Inputs And Outputs
B90 supports 96 Direct I/Os at 64 or 128 kbps rate and 256 Direct I/Os at 213 kbps rate. With 64 or 128 kbps rate, the B90 can exchange Direct I/Os with other URs, while at 213 kbps B90s can exchange between each other's only. Functionality at 213 kbps is possible only with firmware 7.4 or higher and with CPU FPGA revision 2.02 or higher.
Page 315 DIRECT I/O DATA RATE setting applies to a B90 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 316 2, 3, and 4, to the upstream device that monitors a single incomer of the busbar, as shown. Figure 5-57: Sample interlocking busbar protection scheme For increased reliability, a dual-ring configuration (shown as follows) is recommended for this application. 5-124 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 317 The complete application requires addressing a number of issues, such as failure of both the communications rings, failure or out-of-service conditions of one of the relays, and so on. Self-monitoring flags of the direct inputs and outputs feature primarily are used to address these concerns. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-125...
Page 318 Inputs and Outputs section. Implement a blocking pilot-aided scheme with more security and, ideally, faster message delivery time. This is accomplished using a dual-ring configuration as shown here. 5-126 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 319 EVENTS: Disabled The B90 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 320: Installation
 EVENTS: Disabled The B90 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 321: System Setup
Range: 1 A, 5 A  This menu configures the AC current inputs. Upon power up, the B90 recognizes all the AC modules loaded in its chassis and populates the above menu accordingly. The current terminals are denoted in the following format: Xa, where X = {F, L, S} and a = (1, 2,..., 8}. X represents the chassis slot containing the AC input module and a represents the AC channel of each module.
Page 322: 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 5-130 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 323 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-131...
Page 324 MRT and from then onwards the operating time remains at 200 ms. Figure 5-63: 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. 5-132 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 325 EnerVista software generates an error message and discards the proposed changes. 5.4.3.5 Standard recloser curves The following graphs display standard recloser curves available for the B90. Figure 5-65: Recloser curves GE101 to GE106 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 326 SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-66: Recloser curves GE113, GE120, GE138, and GE142 Figure 5-67: Recloser curves GE134, GE137, GE140, GE151, and GE201 5-134 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 327 CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-68: Recloser curves GE131, GE141, GE152, and GE200 Figure 5-69: Recloser curves GE133, GE161, GE162, GE163, GE164, and GE165 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-135...
Page 328 SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-70: Recloser curves GE116, GE117, GE118, GE132, GE136, and GE139 Figure 5-71: Recloser curves GE107, GE111, GE112, GE114, GE115, GE121, and GE122 5-136 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 329: Bus
See the Order Codes section in chapter 2 for information on the maximum number of zones and inputs for a given B90 model. Six bus differential zones are available. Each zone is associated with its own bus differential protection and CT trouble monitoring elements.
Page 330 BUS ZONE 1A(X) STATUS Figure 5-73: Bus zone direction setting For example, assume that B90 IED 4 is used for isolator monitoring while IEDs 1, 2, and 3 are used for protection. Consequently, the setting of IED 4 must be set to “Logic” while...
Page 331: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-139...
Page 332 Figure 5-75: UR architecture overview The states of all digital signals used in the B90 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 333 ANY ANCTR ABNORMAL On for one second when any annunciator window state changes from Graphical front panel normal to abnormal ANY ANCTR ALARMED On while any annunciator window state is abnormal B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-141...
Page 334 The first end fault protection element has dropped out EFP 1 OP The first end fault protection element has operated EPF 2 to 24 Same set of operands as shown for EFP 1 5-142 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 335 Cont Op 72 VOff (does not appear unless ordered) INPUTS/OUTPUTS: DIRECT INPUT 1 On Flag is set, logic=1 ↓ ↓ Direct inputs DIRECT INPUT 256 On Flag is set, logic=1 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-143...
Page 336 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 5-144 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 337 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) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-145...
Page 338 ‘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’ 5-146 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 339: Flexlogic Rules
A timer operator (for example, "TIMER 1") or virtual output assignment (for example, " = Virt Op 1") can be used once only. If this rule is broken, a syntax error is declared. 5.5.3 FlexLogic evaluation Each equation is evaluated in the ascending order in which the parameters have been entered. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-147...
Page 340: 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. 5-148 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 341 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-149...
Page 342 It is now possible to check that this selection of parameters produces the required logic by converting the set of parameters into a logic diagram. The result of this process is shown in the figure, which is compared to the logic for virtual output 3 diagram as a check. 5-150 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 343 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-151...
Page 344 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 5-152 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 345: Flexlogic Equation Editor
LATCH 1 SET: Range: FlexLogic operand  LATCH 1 RESET: Range: FlexLogic operand  LATCH 1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset LATCH 1 Range: Disabled, Enabled  EVENTS: Disabled B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-153...
Page 346: Grouped Elements
See also the Introduction to Elements section at the beginning of this chapter. 5.6.2 Setting group 1 SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  SETTING GROUP 1  BUS DIFFERENTIAL See below    5-154 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 347: Bus Differential
The biased bus differential function has a dual-slope operating characteristic (see figure below) operating in conjunction with saturation detection and a directional comparison principle (see the logic diagram in this section). B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-155...
Page 348 This setting can also be set above the maximum load level to ensure security during CT trouble conditions. However, voltage supervision or a check-zone are better alternatives. 5-156 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 349 BUS ZONE 1 DIF TRIP include forced trip of the healthy phase from the faulted phase, or a trip command from the BF function to isolate the entire zone of busbar protection. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-157...
Page 350 GROUPED ELEMENTS CHAPTER 5: SETTINGS More information on the bus zone differential settings can be found in the Application of Settings chapter. 5-158 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 351 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-85: Bus zone 1 differential logic B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-159...
Page 352: Breaker Failure (Ansi 50Bf)
BF1 TIMER 3 PICKUP Range: 0.000 to 65.535 s in steps of  DELAY: 0.000 s 0.001 BF1 BKR POS1: Range: FlexLogic operand  BF1 BKR POS2: Range: FlexLogic operand  5-160 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 353 “Protection.” Breaker failure logic is based on status information and is available if the PRODUCT SETUP  B90 FUNCTION  setting is “Logic.” The Breaker failure element requires B90 fiber optic interconnection and proper B90 FUNCTION configuration of the breaker failure and direct input/output settings. See the Application of Settings chapter for details.
Page 354 FlexLogic operands that initiate tripping required to clear the faulted zone. The trip output can be sealed-in for an adjustable period. • Target message indicating a failed breaker has been declared • Illumination of the face plate TRIP LED 5-162 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 355 — If set to "Yes", the element is sealed-in if current flowing through the breaker is above the supervision BF1 USE SEAL-IN pickup level. — This setting selects the B90 Remote Inputs that represent operation of the current BF1 AMP SUPV OP A through C supervision elements on phase A, B, or C.
Page 356 BF1 AMP LOSET PICKUP lowest expected fault current on the protected breaker, after a breaker opening resistor is inserted approximately 90% of resistor current). Figure 5-86: Breaker failure current supervision logic 5-164 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 357 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-87: Breaker failure logic B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-165...
Page 358 DIRECT INPUT 3 BIT NUMBER : "2" (message received from IED 2) DIRECT INPUT 4 DEVICE : "13" (this is BKRSUPV 3 SUPV OP for Phase B) DIRECT INPUT 4 BIT NUMBER 5-166 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 359 BF 3 AMP LOSET OP C The B90 current supervision elements reset in less than 0.7 of a power cycle up to the multiple of pickup of 100 (threshold set at 0.01 of the actual fault current) as in the following figure.
Page 360: Voltage Elements
The relay uses sophisticated algorithms to speed up the reset time of the breaker failure overcurrent supervision. Caution must be paid when testing the B90 for BF reset times. In particular, the current must be interrupted in a way resembling the actual breaker operation (zero-crossing).
Page 361: Current Elements
 OVERCURRENT 24 5.6.6.2 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 362 22.682 9.522 3.647 2.002 1.297 0.927 0.709 0.569 0.474 0.407 45.363 19.043 7.293 4.003 2.593 1.855 1.418 1.139 0.948 0.813 90.727 38.087 14.587 8.007 5.187 3.710 2.837 2.277 1.897 1.626 5-170 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 363 IEC (BS) curve shape IEC Curve A (BS142) 0.140 0.020 IEC Curve B (BS142) 13.500 1.000 43.2 IEC Curve C (BS142) 80.000 2.000 58.2 IEC Short Inverse 0.050 0.040 0.500 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-171...
Page 364 The curves for the General Electric type IAC relay family are derived from the formulae: Eq. 5-7 where T = operate time (in seconds) TDM = Multiplier setting I = Input current = Pickup Current setting 5-172 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 365 0.569 0.419 0.368 0.341 0.325 0.314 0.307 0.301 0.296 1.145 0.759 0.559 0.490 0.455 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-173...
Page 366 IOC1 FUNCTION: Range: Disabled, Enabled   OVERCURRENT 1 Disabled IOC1 CT: Range: Available current channels  IOC1 PICKUP: Range: 0.005 to 30.000 pu in steps of 0.001  1.200 pu 5-174 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 367 FlexLogic operands are passed between the IEDs using the B90 fiber optic communications (Direct I/Os). Instantaneous Overcurrent supervision can also be used to prevent tripping feeders with low currents or for definite time backup protection.
Page 368: End Fault Protection
Range: 0.000 to 65.535 s in steps of 0.001  0.400 s EFP1 MANUAL CLOSE: Range: FlexLogic operand  EFP1 PICKUP DELAY: Range: 0.000 to 65.535 s in steps of 0.001  0.040 s 5-176 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 369 — This setting is a FlexLogic operand indicating an open breaker. The operand shall be "On" when the EFP1 BREAKER OPEN breaker is open. Typically, this setting is a position of an appropriately wired input contact of the B90. — This setting specifies a timed delay between the breaker position being declared as open by the EFP1 EFP1 BKR DELAY BREAKER OPEN setting and the moment the EFP scheme is armed.
Page 370 Therefore, the close status of the isolator shall be used as the block setting. Figure 5-94: End fault protection and bypass isolators Figure 5-95: End fault protection logic 5-178 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 371: Control Elements
If more than one operate-type operand is required, it can be assigned directly from the trip bus menu. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-179...
Page 372 RESET OP operand is pre-wired to the reset gate of the latch, As such, a reset command from the front panel interface or via communications resets the trip bus output. 5-180 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 373: Setting Groups
Prevents the active setting group from changing when the selected FlexLogic operand is "On." This SETTING GROUPS BLK — can be useful in applications where it is undesirable to change the settings under certain conditions, such as during a control sequence. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-181...
Page 374: Digital Elements
FlexLogic operand, and a timer for pickup and reset delays for the output operand. — Selects a FlexLogic operand to be monitored by the digital element. DIGITAL ELEMENT 1 INPUT 5-182 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 375 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-183...
Page 376 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). 5-184 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 377: Monitoring Elements
5.7.5 Monitoring elements 5.7.5.1 Menu SETTINGS  CONTROL ELEMENTS  MONITORING ELEMENTS  MONITORING  CT TROUBLE ZONE 1 See below   ELEMENTS   B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-185...
Page 378 CT Trouble is declared for the given phase by setting the appropriate FlexLogic output operand. The operand may be configured to raise an alarm and block the bus differential function for the corresponding zone of protection. 5-186 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 379 Range: 0.00 to 120.00 s in steps of 0.05  DELAY: 0.05 s ISOLATOR 1 RESET: Range: FlexLogic operand  ISOLATOR 1 Range: Self-Reset, Latched, Disabled  TARGET: Self-Reset ISOLATOR 1 Range: Disabled, Enabled  EVENTS: Disabled B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-187...
Page 380 Bus protection zone discrimination depends heavily on reliable isolator position feedback. Therefore, two isolator auxiliary contacts – normally open and normally closed – must confirm the status of the isolator via the B90 contact inputs. This element responds to both normally open and normally closed auxiliary contacts of an isolator or a tie-breaker in order to assert the actual position of the isolator for the dynamic bus image.
Page 381 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-103: Isolator monitoring logic Figure 5-104: Isolator monitoring sample timing diagram B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-189...
Page 382: 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 B90 to validate the new contact state. In the following figure, the debounce time is set at 2.5 ms;...
Page 383 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: B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-191...
Page 384: Virtual Inputs
FlexLogic equation, it likely needs to be lengthened in time. A FlexLogic timer with a delayed reset can perform this function. Figure 5-106: Virtual inputs logic 5-192 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 385: Contact Outputs
: any suitable FlexLogic operand OUTPUT H1 OPERATE “Cont Op 1 OUTPUT H1 SEAL-IN IOn” : “Enabled” CONTACT OUTPUT H1 EVENTS Figure 5-107: Contact input/output module type 6A contact 1 logic B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-193...
Page 386 Figure 5-108: 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. 5-194 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 387 (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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-195...
Page 388: Virtual Outputs
VIRTUAL OUTPUT 1 ID : "Disabled" VIRTUAL OUTPUT 1 EVENTS 5.8.5 Resetting 5.8.5.1 Enhanced and standard front panels SETTINGS  INPUTS/OUTPUTS  RESETTING  RESETTING RESET OPERAND: Range: FlexLogic operand   5-196 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 389: Direct Inputs And Outputs
EVENTS: Disabled 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-197...
Page 390 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: 5-198 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 391 (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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-199...
Page 392 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. 5-200 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 393: Testing
FUNCTION: Disabled  The B90 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 394: Test Mode Forcing
Select this value if a given input must be operational during the test. This includes, for example, an input initiating the test, or being a part of a user pre-programmed test sequence. 5-202 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 395: Force Contact Outputs
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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-203...
Page 396 TESTING CHAPTER 5: SETTINGS 5-204 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 397 See page 6-5   STATISTICS  FLEX STATES See page 6-6    ETHERNET See page 6-6    REAL TIME CLOCK See page 6-6   SYNCHRONIZING B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 398: Actual Values
The front panel can be viewed and used in the EnerVista software, for example to view an error message displayed on the front panel. The feature applies to the enhanced and standard front panels. To view the front panel in EnerVista software: Click Actual Values > Front Panel. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 399: Status
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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 400: Rxgoose Boolean Inputs
Range: On, Off  STATUS: Off The B90 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 401: Rxgoose Status
 Offline The B90 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 402: Flex States
RTC, considering the quality information imbedded in the ACCURACY received time signal. The value 999,999,999 indicates that the magnitude of the estimated error is one second or more, or that the error cannot be estimated. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 403: Direct Inputs
ACTUAL VALUES  STATUS  DIRECT DEVICES STATUS  DIRECT DEVICES DIRECT DEVICE 1 Range: Offline, Online   STATUS STATUS: Offline  DIRECT DEVICE 16 Range: Offline, Online  STATUS: Offline B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 404: Remaining Connection Status
Range: 0 to 4G, blank if PRP disabled  The B90 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 405: Metering
 ARP: The B90 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 406: Bus Zone
These values display the differential and restraint currents phasors for each bus zone. The magnitudes are displayed in primary amperes. There is no cutoff level applied to the differential and restraint currents computed by the B90. Therefore, a small differential current reflecting CT inaccuracies and bus leakage current can be present during balanced conditions.
Page 407: Voltages
 0.000 The B90 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 408: Event Records
To view them in a web browser, enter the IP address of the device. When an oscillography icon displays, click it to open it. Figure 6-3: Event records viewed in EnerVista software 6-12 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 409: Oscillography
A trigger can be forced here at any time by setting “Yes” to the FORCE TRIGGER? command. See the COMMANDS  CLEAR menu for information on clearing the oscillography records. RECORDS B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 6-13...
Page 410: 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. 6-14 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 411 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 6-15...
Page 412 PRODUCT INFORMATION CHAPTER 6: ACTUAL VALUES 6-16 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 413: Commands And Targets
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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 414: Virtual Inputs
When the relay is synchronizing to an external time source such as PTP, IRIG-B, or SNTP, the manually entered time or the manually synchronized time is over-written. The timescale of the entered time is local time, including daylight savings time where and when applicable. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 415: Relay Maintenance
Although the diagnostic information is cleared before the B90 is shipped from the factory, the user can want to clear the diagnostic information for B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 416: 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 B90 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 417: Target Messages
Contact Factory (xxx) • Latched target message: Yes. • Description of problem: One or more installed hardware modules is not compatible with the B90 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 418 Most of the minor self-test errors can be disabled. See the settings in the User-programmable Self-tests section in chapter DIAGNOSTIC ALARM: with 2nd line detail • Latched target message: Yes. • Description of problem: Internal process disruption detected. • How often the test is performed: Module dependent. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 419 If strict PP is enabled, that entire network is PP compliant. – The network is delivering PTP messages to the relay. MAINTENANCE ALERT: SNTP Failure • Latched target message: No. • Description of problem: The SNTP server is not responding. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 420 What to do: Perform UR firmware upgrade with the graphical front panel connected to the CPU module in the relay. It can be done using any communication interface (Ethernet or USB). This synchronizes the graphical firmware revision with that of the relay. If trouble persists, contact the factory. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 421 Description of problem: The ambient temperature is greater than the maximum operating temperature (+80°C). • How often the test is performed: Every hour. • What to do: Remove the B90 from service and install in a location that meets operating temperature standards. UNEXPECTED RESTART: Press “RESET” key •...
Page 422 V-type CPU = All ports support RJ45 SFPs only The consequence of an incorrect SFP can range from damage to the B90 to no power information for the B90 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 423 MATCH HW&ORDER CODE • Description of problem: The "B90 Function" setting is set to "Protection" and there is a discrepancy between the order code and the hardware (HW) configuration. For example, if the software option in the B90 order code assumes 24 feeder configuration, but there are only two DSP modules with a total of 16 CT inputs, there is a discrepancy between the hardware and order code and if the "B90 Function"...
Page 424 TARGETS MENU CHAPTER 7: COMMANDS AND TARGETS 7-12 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 425: Application Of Settings
It is also assumed that the CTs have been selected without considering a B90 application, but the UR settings are to be calculated for proper relay application. The CT data used in this example are kept to a minimum and in a generic form. The CT data does not reflect any particular notation or national standards.
Page 426 Table 8-2: Basic CT data Ratio (Ω) Leads (m) CTsec CT-1 600:5 0.34 CT-2 600:5 0.34 CT-3 1200:5 0.64 CT-4 1000:5 0.54 CT-5, CT-6 1000:5 0.54 CT-7, CT-8 1200:5 0.64 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 427: Zoning And Dynamic Bus Replica
CT-3 (if S-3 closed), CT-4 (if S-5 closed), CT-5 and CT-8. The North bus protection is to operate the following breakers: B-1, B-2 (if S-1 closed), B-3 (if S-3 closed), B-4 (if S-5 closed), B-5 and B-7. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 428: South Bus Zone
CT-6 and CT-7. The South bus protection is to operate the following breakers: B-2 (if S-2 closed), B-3 (if S-4 closed), B-4 (if S- 6 closed), B-6 and B-7. Figure 8-4: South bus zone B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 429: Biased Characteristic Breakpoints
Assuming 0.003 Ω/m lead resistance and approximating the B90 input resistance for the 5A input CTs as 0.2 VA / (5 A) 0.008 Ω, the limits of the linear operation of the CTs have been calculated and presented in the Limits of Linear Operations of the CTs table.
Page 430: Slopes And High Set Threshold
CTs. For this purpose we assume the tie breaker, B-7 closed; all the circuitry capable of supplying the fault current to be in service; moreover, they are connected to the South bus in order to analyze the CT-7 and CT-8 carrying the fault current. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 431: External Faults On C-1
S_LIM Eq. 8-7 where is the maximum CT primary fault current The figure illustrates the K CT saturation capability curve and K limiting factor. S_LIM B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 432 Method 1 — Download the "CT Time-to-Saturate Estimator.xlsm" spreadsheet from the GE Multilin web site, located under Support > Support Documents > B90 Low Impedance Bus Differential System. Enter the required system and CT parameters to obtain the CT time-to-saturate.
Page 433: External Faults On C-2
Table 8-6: Calculations for the external faults on C-3 (kA) (A sec) (ms) AC saturation DC saturation (ms) FAULT FAULT CT-1 0.00 CT-2 0.00 CT-3 33.33 23.68 CT-4 25.00 26.37 CT-6 15.00 61.50 CT-7, CT-8 33.33 23.68 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 434: Bus Differential Settings
11.0 55.00 9.45 CT-7, CT-8 11.0 45.83 11.54 8.5 Bus differential settings 8.5.1 Description Taking the previous analysis from this chapter into account, the settings have been calculated as follows. 8-10 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 435: Enhancing Relay Performance
HIGH BPNT 8.96 None of the CTs saturate for AC currents below 8.96 pu. The DC component, however, can saturate some CTs even for currents below 8.96 pu. The B90 copes with saturation using the current directional principle. HIGH SET 5.94...
Page 436 CTs in any particular bus configuration. 8-12 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 437: Theory Of Operation
9.1.1 Bus differential protection The figure shows that input currents defining (through the dynamic bus replica) the bus differential zone are received by the B90 from current transformers (CTs) associated with the power system. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 438 The output logic (Block 11) combines the differential, directional, and saturation flags into the biased differential operation flag. The applied logic enhances performance of the relay while keeping an excellent balance between dependability/ speed and security. See the Output Logic and Examples section. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 439: Dynamic Bus Replica
9.2.1 Dynamic bus replica mechanism The bus differential zones of the B90 allow for protecting bus sections that include circuits that are switchable between different sections. Proper relay operation is achieved by associating a status signal with each input current. This mechanism is referred to as a dynamic bus replica.
Page 440: Differential And Restraining Currents
Figure 9-2: Biased operating characteristic The higher slope used by the B90 acts as an actual percentage bias regardless of the value of the restraining signal. This is so because the boundary of the operating characteristic in the higher slope region is a straight line intersecting the origin of the ‘differential - restraining’...
Page 441: Enhanced Security
LOW BPNT 9.3.3 Enhanced security To enhance the performance of the B90, the differential characteristic is divided into two regions having diverse operating modes, as shown in following figure. The first region applies to comparatively low differential currents and has been introduced to deal with CT saturation on low-current external faults.
Page 442: Directional Principle
9.4 Directional principle 9.4.1 Current directional protection For better security, the B90 uses the current directional protection principle to dynamically supervise the main current differential function. The directional principle is in effect permanently for low differential currents (region 1 in the Two Regions of Differential Characteristic figure) and is switched on dynamically for large differential currents (region 2 in the same figure) by the saturation detector (see the Saturation Detector section) upon detecting CT saturation.
Page 443: Saturation Detector
9.5.1 CT saturation detection The saturation detector of the B90 takes advantage of the fact that any CT operates correctly for a short period of time, even under very large primary currents that would subsequently cause a very deep saturation. As a result, in the case of an external fault, the differential current stays very low during the initial period of linear operation of the CTs while the B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM –...
Page 444 This must be kept in mind when setting the characteristic as its parameters must retain their original meaning. The operation of the saturation detector is available as the FlexLogic operand BUS 1(4) SAT A/B/C. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 445: Output Logic And Examples
For high differential signals, the directional principle is included only if demanded by the saturation detector (dynamic 1- out-of-2 / 2-out-of-2 mode). Typically, the directional principle is slower, and by avoiding using it when possible, the B90 gains speed.
Page 446: Internal And External Fault Example
The first of the following figures presents the bus currents and the most important logic signals for the case of an external fault. Despite very fast and severe CT saturation, the B90 remains stable. The second figure presents the same signals but for the case of an internal fault. The B90 trips in 10 ms (fast form-C output contact).
Page 447 CHAPTER 9: THEORY OF OPERATION OUTPUT LOGIC AND EXAMPLES Figure 9-9: External fault example B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 9-11...
Page 448 OUTPUT LOGIC AND EXAMPLES CHAPTER 9: THEORY OF OPERATION Figure 9-10: Internal fault example 9-12 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 449: Maintenance
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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-1...
Page 450 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 451: General Maintenance
GENERAL MAINTENANCE 10.2 General maintenance The B90 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 452 Using the Up or Down pushbuttons on the front panel, select the file. Press the COPY pushbutton. The files are copied from the B90 to the USB drive. Do not unplug the USB drive while copying is in progress, else the USB drive can be compromised.
Page 453: 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 454 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 455: Copy Settings To Other Device
10.5 Copy settings to other device Settings from one B90 device can be copied to another B90 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 456: Back Up And Restore Settings
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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 457 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 458 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 459: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-11...
Page 460 EnerVista UR Setup software. 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 461: Upgrade Software
10.9 Upgrade firmware If upgrading both EnerVista software and B90 firmware, upgrade the software first. The firmware of the B90 device can be upgraded, locally or remotely, using the EnerVista software. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 462 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 463: 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-15...
Page 464 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 465 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-17...
Page 466 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 467 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-19...
Page 468 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 469 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-21...
Page 470 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 471: Replace Module
Open the enhanced front panel to the left once the thumb screw has been removed. This allows for easy access of the modules for withdrawal. The new wide-angle hinge assembly in the enhanced front panel opens completely and allows easy access to all modules in the B90. Figure 10-26: Modules inside relay with front cover open (enhanced front panel) B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM –...
Page 472: Battery
When required, the battery can be replaced. The power supply module contains the battery. The battery type is 3 V cylindrical. 10.12.1 Replace battery for SH/SL power supply When required, the battery can be replaced. The power supply module contains the battery. 10-24 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 473 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-25...
Page 474: Dispose Of Battery
(Cd), el plomo (Pb), o el mercurio (Hg ). Para el reciclaje apropiado, devuelva este producto a su distribuidor ó deshágase de él en los puntos de reciclaje designados. Para mas información : wwwrecyclethis.info. 10-26 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 475 (Cd), lood (Pb) of kwik (Hg). Voor correcte vorm van kringloop, geef je de producten terug aan jou locale leverancier of geef het af aan een gespecialiseerde verzamelpunt. Meer informatie vindt u op de volgende website: www.recyclethis.info. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 10-27...
Page 476 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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 477: 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 478: 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 479: Flexanalog Items
8692 Bus 3 Max CT Amps B90 bus max CT 8698 Bus 4 Diff Mag Amps B90 bus zone DMag 8702 Bus 4 Diff Angle Degrees B90 bus zone diff angle B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 480 Terminal 13 current angle 28455 L6 Curr Mag Amps Terminal 14 current magnitude 28457 L6 Curr Ang Degrees Terminal 14 current angle 28458 L7 Curr Mag Amps Terminal 15 current magnitude B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 481 Terminal 12 voltage angle 28624 System Frequency Terminal frequency 32768 Tracking Frequency Terminal tracking frequency 45584 RxGOOSE Analog 1 RxGOOSE analog input 1 45586 RxGOOSE Analog 2 RxGOOSE analog input 2 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 482 RxGOOSE analog input 31 45646 RxGOOSE Analog 32 RxGOOSE analog input 32 63634 Bus 1 M_Id B90 Bus M_Id 63636 Bus 1 M_Ir B90 Bus M_Ir 63638 Bus 1 d_Ir B90 Bus d_Ir B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 483: B Radius Server
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 484 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 485: C Command Line
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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 486 "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 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 487 Read settings from device <device> and save them to the .urs file <File>. The <File> must not already exist. The default path to the output file is C:\Users\Public\Public Documents\GE Power Management\URPC\Data Example: SetupCLI URPC getsettings -d C30 -f "C30 Markham.urs"...
Page 488 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 489 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. B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 490 COMMAND LINE INTERFACE APPENDIX C: COMMAND LINE INTERFACE B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 491: 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 492 17-3561 1601-0115-AF1 7.6x 30 June 2017 17-3779 Table D-2: Major changes for B90 manual version AF1 (English) Page Description General revision Updated "faceplate" to "front panel" for consistency and to reflect web site Added graphical front panel option to order codes and specifications in chapter 2, Interfaces chapter 4, Settings chapter 5, Actual Values chapter 6 Added PEAP-GTC and PAP protocols for authenticating user logins when using a RADIUS server.
Page 493 APPENDIX D: MISCELLANEOUS REVISION HISTORY Table D-4: Major changes for B90 manual version AE1 (English) Page Description General revision Added routable GOOSE content in chapters 2 and 5 3-34 Updated RS422 and Fiber Interface Connection figure for the clock channels (from 7a and 7b to 1a and 1b)
Page 494 REVISION HISTORY APPENDIX D: MISCELLANEOUS B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 495 Full Load Current Contact Output Fiber Optic Communication FPGA Field-programmable Gate Array COMM Communications FREQ Frequency COMP Compensated, Comparison Frequency-Shift Keying CONN Connection File Transfer Protocol CONT Continuous, Contact FlexElement™ CO-ORD Coordination Forward B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 496 Low Voltage Parallel Redundancy Protocol PSEL Presentation Selector Machine Precision Time Protocol Machine to Machine Per Unit MilliAmpere PUIB Pickup Current Block Magnitude PUIT Pickup Current Trip Manual / Manually PUSHBTN Pushbutton B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 497 Time Dial Multiplier TEMP Temperature TFTP Trivial File Transfer Protocol Total Harmonic Distortion Timer Time Overcurrent Time Overvoltage TRANS Transient TRANSF Transfer TSEL Transport Selector Time Undercurrent Time Undervoltage TX (Tx) Transmit, Transmitter B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 498 ABBREVIATIONS B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 499 ....................7-5 overview ....................4-31 FlexLogic operands ...............5-142 logic diagram ...................5-165 reset ......................4-34 settings ....................5-160 AND gate explained ................4-82 specifications ..................2-17 Annunciator editor ................4-34 Brightness ....................5-23 ANSI device numbers ................2-2 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 500 CRC alarm ..................... 5-127 control user accounts ..............5-11 Critical failure relay specifications ..........2-22 menu ......................7-1 CSA certification ................... 2-28 with IEC 61850 .................. 5-87 CT banks settings ....................5-129 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 501 ...................5-178 bus ..............2-16, 5-137, 5-155, 6-10 settings ....................5-176 Digital elements specifications ..................2-17 application example ..............5-184 End of life ....................10-30 FlexLogic operands ...............5-142 logic diagram ...................5-183 settings ....................5-182 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 502 ..................5-150 system logs ..................5-22 Force contact inputs ..............5-202 via EnerVista software ..............4-2 Force contact outputs ..............5-203 EVENTS setting ..................5-4 Export settings to file ................ 10-8 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 503 GE type IAC curves ................5-173 ICD file ................5-71, 5-73, 5-74 Getting help ....................1-2 IEC 60870-5-103 protocol GFP Version Mismatch error ............7-8 explained ....................5-94 select protocol ................... 5-47 settings ....................5-94 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 504 Log in, multiple users cannot settings ....................5-174 ............2-5 specifications ..................2-16 Logic diagram explained ..............4-60 Logic diagrams, create ..............4-61 Logic gates, FlexLogic ............4-82, 5-147 Logout users forcefully ...............7-3 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 505 ................3-27 IAC ......................5-172 CT and VT ....................3-14 IEC ......................5-171 order codes ..................2-12 power supply ..................3-13 replace ....................10-23 Monitor Panel cutout ....................3-2 actual values ..................10-1 devices ....................10-1 Monitoring elements settings ............5-185 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 506 ................5-16, 5-17 TFTP ......................5-92 Power supply Quick Connect ................3-61, 3-62 description ..................3-13 diagram ....................3-6 removal to replace battery ............10-24 specifications ..................2-21 Power System settings ....................5-129 viii B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 507 Serial ports configuration ..................3-61 settings ....................5-38 specifications ..................2-23 specifications ..................2-23 wiring ......................3-26 Server authentication ............... 5-13 Server unavailable self-test ............7-10 Service life expected ................. 10-3 Service Report ..................1-2 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 508 ..............3-49 LEDs ......................7-3 update or downgrade ..............10-13 pushbuttons ..................7-3 Specifications ..................2-15 self-test error messages ..............7-5 ST fiber ....................2-7, 3-6 settings .................5-201, 5-202 ST fiber connector ................. 3-6 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 509 ..................4-43 defaults ....................4-41 settings ....................5-110 specifications ..................2-18 UDP for TFTP ...................5-92 UL certification ..................2-28 Unable to access device ..............3-60 Unable to put relay in flash mode ...........10-14 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...
Page 510 RS422 and fiber interface ............3-40 RS422 interface ................3-38 Wiring diagrams ..................3-7 Withdrawal from operation ............10-29 Wrong transceiver message ............7-9 XOR gate explained ................4-82 Yellow caution icon in Offline Window ........4-68 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL...

GE B90 Instruction Manual

1 Introduction

Safety Symbols and Definitions

2 Product Description

Description

Security

3 Installation

Unpack and Inspect

4 Interfaces

Enervista Software Interface

5 Settings

Settings Menu

6 Actual Values

7 Commands and Targets

8 Application of Settings

9 Theory of Operation

10 Maintenance

Convert Device Settings

Back up and Restore Settings

Upgrade Software

Flexanalog Items

B Radius Server

RADIUS Server Configuration

C Command Line

Command Line Interface

Warranty

Revision History

Quick Links

Related Manuals for GE B90

Summary of Contents for GE B90