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GE Multilin 469 Instruction Manual

GE Multilin 469 Instruction Manual

Motor management relay
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Digital Energy
Multilin
Software Revision: 5.0x
Manual P/N: 1601-0122-A8
Manual Order Code: GEK-106474G
Copyright © 2009 GE Multilin
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: (905) 294-6222 Fax: (905) 201-2098
Internet:
http://www.GEmultilin.com
*1601-0122-A8*
All manuals and user guides at all-guides.com
469 Motor Management
Relay
Instruction Manual
GE Multilin's Quality Management
System is registered to
ISO9001:2000
QMI # 005094
UL # A3775

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  • Page 1 Multilin 469 Motor Management Relay Instruction Manual Software Revision: 5.0x Manual P/N: 1601-0122-A8 Manual Order Code: GEK-106474G Copyright © 2009 GE Multilin GE Multilin 215 Anderson Avenue, Markham, Ontario Canada L6E 1B3 Tel: (905) 294-6222 Fax: (905) 201-2098 Internet: http://www.GEmultilin.com...
  • 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

    All manuals and user guides at all-guides.com TABLE OF CONTENTS Table of Contents 1: GETTING STARTED IMPORTANT PROCEDURES ................1-1 ....................1-1 AUTIONS AND ARNINGS ...................... 1-1 NSPECTION HECKLIST ....................1-2 ANUAL RGANIZATION USING THE RELAY .................... 1-3 ......................1-3 AVIGATION ....................
  • Page 4 All manuals and user guides at all-guides.com TABLE OF CONTENTS 3: INSTALLATION MECHANICAL INSTALLATION ............... 3-1 ........................3-1 ESCRIPTION ....................3-2 RODUCT DENTIFICATION ........................3-3 NSTALLATION ................3-5 ITHDRAWAL AND NSERTION ....................3-7 THERNET ONNECTION ....................3-8 EVICE ONNECTION ......................3-9 ERMINAL OCATIONS ........................
  • Page 5 All manuals and user guides at all-guides.com TABLE OF CONTENTS ....................4-35 OADING IRMWARE ADVANCED ENERVISTA 469 SETUP FEATURES ........4-38 ......................4-38 RIGGERED VENTS ) ................. 4-38 AVEFORM APTURE RACE EMORY ..........................4-40 HASORS ) ....................4-42 RENDING OGGER .......................
  • Page 6 ETUP ........................5-100 AULT ETUP ......................5-101 UTPUT ELAYS ..................... 5-101 NALOG UTPUTS ....................... 5-102 ONITOR GE M ....................5-102 ULTILIN S14 TWO-SPEED MOTOR .................. 5-103 ........................5-103 ESCRIPTION ....................5-107 PEED NDERCURRENT ...................... 5-107 PEED CCELERATION 6: ACTUAL VALUES OVERVIEW ......................
  • Page 7 HARDWARE FUNCTIONAL TESTING ............7-3 ..................7-3 HASE URRENT CCURACY ..................7-3 OLTAGE NPUT CCURACY ............... 7-4 ROUND AND IFFERENTIAL CCURACY GE M 50:0.025 G ............. 7-5 ULTILIN ROUND CCURACY RTD A ......................7-5 CCURACY ..............7-7 IGITAL NPUTS AND UPERVISION ..................
  • Page 8 EU D ................. A-10 ECLARATION OF ONFORMITY CHANGE NOTES ....................A-11 ......................A-11 EVISION ISTORY 469 M ..................A-11 HANGES TO THE ANUAL GE MULTILIN WARRANTY ................A-13 ..................... A-13 ARRANTY TATEMENT TOC–VI 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 9: Chapter 1: Getting Started

    View the rear nameplate and verify that the correct model has been ordered. • Ensure that the following items are included: – Instruction Manual – GE EnerVista CD (includes software and relay documentation) – mounting screws • For product information, instruction manual updates, and the latest software updates, please visit the GE Multilin website at http://www.GEmultilin.com.

  • Page 10: Manual Organization

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED 1.1.3 Manual Organization Reading a lengthy instruction manual on a new product is not a task most people enjoy. To speed things up, this introductory chapter provides a step-by-step tutorial for a simple motor application.

  • Page 11: Using The Relay

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Using the Relay 1.2.1 Menu Navigation The relay has three types of display messages: actual value, settings, and target messages. A summary of the menu structure for settings and actual values can be found at the beginning of chapters 5 and 6, respectively.

  • Page 12: Target Messages

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Learned and last starting capacity. Average motor load. Maintenance data. This is useful statistical information that may be used for preventive maintenance. It includes: Trip counters General counter such as number of motor starts, number of emergency restarts, number of starter operations, digital counter for other purposes not listed above.
  • Page 13 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED SETTINGS S1 RELAY SETUP To enter a given Settings page, Press the key. MESSAGE ENTER Press the keys to scroll through sub-page MESSAGE MESSAGE headers until the required message is reached. The end of a page is indicated by the message .
  • Page 14 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Press the key to scroll through pages, MESSAGE MESSAGE until the page appears. A2 METERING DATA ACTUAL VALUES A2 METERING DATA Press the key to display the first sub-page MESSAGE ENTER heading for the Metering Data actual values page:...
  • Page 15 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Press the key to display the next actual value of this sub- MESSAGE page. Actual values and settings messages always have a colon separating the name of the value and the actual value or settings. This particular message displays the current demand as measured by the relay.

  • Page 16: Panel Keying Example

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED 1.2.2 Panel Keying Example The following figure gives a specific example of how the keypad is used to navigate through the menu structure. Specific locations are referred to throughout this manual by using a ‘path representation’.

  • Page 17: Changing Settings

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Changing Settings 1.3.1 Introduction There are several classes of settings, each distinguished by the way their values are displayed and edited. The relay's menu is arranged in a tree structure. Each setting in the menu is referred to as a settings, and each settings in the menu may be accessed as described in the previous section.

  • Page 18: The Help Key

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Note that enabling settings access on one interface does not automatically enable access for any of the other interfaces (i.e., the passcode must be explicitly set in the relay via the interface from which access is desired).

  • Page 19: Enumeration Settings

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Therefore, press the key to store the new value in memory. ENTER This flash message will momentarily appear as confirmation of the storing process. NEW SETTINGS BEEN STORED 1.3.4 Enumeration Settings The example shown in the following figures illustrates the keypress sequences required to enter system parameters such as the phase CT primary rating, ground CT primary rating,...
  • Page 20 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED SETTINGS Press MESSAGE ENTER SETTINGS Press MESSAGE Press Press PHASE CT PRIMARY: MESSAGE MESSAGE SETTINGS CURRENT 600 A ENTER ENTER Press MOTOR FULL LOAD MESSAGE AMPS Press the keys until 318 A is VALUE MOTOR FULL LOAD displayed, or enter the value directly via...
  • Page 21 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED To set the ground CT ratings, modify the S2 SYSTEM SETUP CURRENT SENSING and the GROUND CT S2 SYSTEM SETUP CURRENT SENSING GROUND CT PRIMARY settings as shown below. Press the key until the relay displays the Settings menu header.
  • Page 22 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED To set the VT connection type and ratings, modify the S2 SYSTEM SETUP VOLTAGE and the SENSING VT CONNECTION TYPE S2 SYSTEM SETUP VOLTAGE SENSING , and VOLTAGE TRANSFORMER RATIO S2 SYSTEM SETUP VOLTAGE SENSING MOTOR...

  • Page 23: Output Relay Settings

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED 1.3.5 Output Relay Settings Output relays (Trip or Alarm) can be associated to the Auxiliary Relays 2 and 3. Each can be selected individually, or in combination, in response to customer specific requirements, which can be initiated by any protection element or function, whose ASSIGN RELAYS settings has them selected.

  • Page 24: Switch Name

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Press the decimal [.] key to enter the text editing mode. The first character will appear underlined as follows:. SWITCH NAME: General Sw. A Press the keys until the character “S” is displayed in the first VALUE position.

  • Page 25: Application Example

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Application Example 1.4.1 Description The 469 Motor Management Relay contains many features designed to accommodate a wide range of motor management applications. This chapter is provided to guide you, the first-time user, through a real-world application.
  • Page 26 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED – VT primary and secondary ratings – System frequency – System phase sequence • Define the protection elements that will be enabled. Prepare a list of protection functions including the following information. By default, all the protection functions must be assumed “Disabled”: –...
  • Page 27 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED To begin, simply power on the unit and follow the instructions in this tutorial. Assume the following system characteristics and that the 469 settings are unaltered from their factory default values.
  • Page 28 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED FIGURE 1–2: Typical Relay Connection Diagram 1–20 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...
  • Page 29 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED COMMON 806552A2.CDR FIGURE 1–3: Typical Control Diagram 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–21...
  • Page 30 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED 806551A1.CDR FIGURE 1–4: Typical Breaker Control Diagram 1–22 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...
  • Page 31 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED 806555A2.CDR FIGURE 1–5: Typical Relay Control Diagram • Power System Data a) System: 3 , 4 wire Φ b) Frequency: 60 Hz c) Line voltage: 600 V • Motor Data As per the following motor data sheet information: FIGURE 1–6: Motor Data Sheet Information 469 MOTOR MANAGEMENT RELAY –...
  • Page 32 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED • Motor Operating Curves Motor operating curves as shown below: FIGURE 1–7: Motor Operating Curves for Application Example • Control System Requirements – All protection elements trip the breaker –...

  • Page 33: Instrument Transformer Data

    RTU. Alarms, status indication, and breaker commands will be hard-wired from the relay to the RTU. Similar information could be exchanged between the RTU and the relay via an RS485 or RS422 Serial Link using the Modbus RTU protocol. Refer to GE Publication GEK- 106491C: 469 Communications Guide for additional information.
  • Page 34 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Select the standard overload curve to be just below the cold thermal limit to give maximum process uptime, without compromising protection. The best fitting curve is curve 7 (see figure below) 1–26 469 MOTOR MANAGEMENT RELAY –...
  • Page 35 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED FIGURE 1–8: Overload Curve Matching (Example) 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–27...
  • Page 36 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED • Short Circuit Trip The short circuit trip should be set above the maximum locked rotor current but below the short circuit current of the fuses. The data sheets indicate a maximum locked rotor current of 630% FLC or 6.3 ×...
  • Page 37 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED • Starts/Hour When available, set starts/Hour to the number of cold starts as per the data sheet. • Time Between Starts In some cases, the motor manufacturer will specify the time between motor starts. This information is not given so this feature can be left disabled.

  • Page 38: S2 System Settings

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED RTD biasing is a back up protection element, which accounts for such things as loss of cooling or unusually high ambient temperature. This measured temperature is used to bias or modify the thermal capacity value stored in the relay. : Set to 40°C, which is the ambient temperature, obtained from the RTD BIAS MINIMUM data sheets.
  • Page 39 A contactor sealing contact would be used to maintain the circuit. For details on issuing a start or stop command via communications, refer to the GE Publication GEK-106491: 469 Communications Guide. Make the following changes to the communications settings in the S2 SYSTEM SETUP page.

  • Page 40: S3 Digital Inputs Settings

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED Once the signal is received the motor will be started across the line. Therefore, the following settings are left with their default values. In the S2 SYSTEM SETUP REDUCE settings page: VOLTAGE STARTING : “Off”...

  • Page 41: S5 Thermal Model

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED : “5.0 s” GENERAL SWITCH A ALARM DELAY : “On” so this event is registered. GENERAL SWITCH A EVENTS : “Off” GENERAL SWITCH A TRIP If the relay will not be used to trip the motor when someone gains unauthorized access to the station, the next settings should be left at their default values: : “Off”...
  • Page 42 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED For the Short Circuit element, enter the following values in the S6 CURRENT ELEMENTS page. Press the key after each settings is entered to MESSAGE SHORT CIRCUIT TRIP move to the next message. : “Latched”...

  • Page 43: S7 Motor Starting

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED : “Unlatched” CURRENT UNBALANCE ALARM : “Alarm” ASSIGN ALARM RELAYS : “10%” CURRENT UNBALANCE ALARM PICKUP : “10 s” CURRENT UNBALANCE ALARM DELAY : “On” CURRENT UNBALANCE ALARM EVENTS : “Latched”...

  • Page 44: 1.4.10 Other Settings

    All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED : “100 Ohm Platinum” STATOR RTD TYPE : “100 Ohm Platinum” BEARING RTD TYPE : “100 Ohm Platinum” AMBIENT RTD TYPE : “100 Ohm Platinum” – default value OTHER RTD TYPE As per the information provided above, there will be six RTDs, two per phase located in the Stator, and two Bearing RTDs, one to monitor the ambient temperature.
  • Page 45 All manuals and user guides at all-guides.com CHAPTER 1: GETTING STARTED if the measured voltage is greater than 20% of nominal voltage. A trip condition will be initiated only if undervoltage is detected in all the phases. • In order to monitor for VT Fuse Failure or to monitor for undervoltage in one phase only, set an Alarm when the voltage is 90% of nominal voltage both during start and running.

  • Page 46: Installation

    1.5.1 Testing Extensive commissioning tests are available in Chapter 7. Tables for recording required settings are available in Microsoft Excel format from the GE Multilin website at http:// www.GEmultilin.com/. The website also contains additional technical papers and FAQs relevant to the 469 Motor Management Relay.

  • Page 47: Chapter 2: Introduction

    All manuals and user guides at all-guides.com Digital Energy Multilin 469 Motor Management Relay Chapter 2: Introduction Introduction Overview 2.1.1 Description The 469 Motor Management Relay is a microprocessor based relay designed for the protection and management of medium and large horsepower motors and driven equipment.
  • Page 48 A second overload curve is provided for two-speed motors. Ground faults or earth leakage as low as 0.25 A may be detected using the GE Multilin 50:0.025 Ground CT. CT inputs for phase differential protection are also provided. The 12 RTD inputs provided may be individually field programmed for different RTD types.
  • Page 49 All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION Overload Overload Lockout Starts/Hour & Time Between Starts Restart Block (Anti-Backspin Timer) Short Circuit & Short Circuit Backup Mechanical Jam Reverse Power Undercurrent/Underpower Current Unbalance 50G/51G Ground Fault & Ground Fault Backup Differential Acceleration Stator RTD...

  • Page 50: Additional Features

    CT inputs are field programmable for CTs with 1 A or 5 A secondaries. There are two ground CT inputs, one for the GE Multilin 50:0.025 core balance CT and one for a ground CT with a 1 A or 5 A secondary, also field programmable. The VT inputs will accommodate VTs in either a delta or wye configuration.

  • Page 51: Order Codes

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION 2.1.3 Order Codes Table 2–1: 469 Order Codes 469 – – – – – Base Unit 469 Motor Management Relay 1 A phase CT secondaries Phase Current Inputs 5 A phase CT secondaries 20 to 60 V DC;...

  • Page 52: Specifications

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION Specifications Specifications are subject to change without notice. 2.2.1 Inputs ANALOG CURRENT INPUTS Inputs: ..............0 to 1 mA, 0 to 20mA, or 4 to 20 mA (settings) Input impedance: ..........226 Ω ±10% Conversion range: .........0 to 21 mA Accuracy:............±1% of full scale Type: ..............passive...

  • Page 53: Rtd Inputs

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION CT secondary: ..........1 A or 5 A (specify with order) Burden:..............Less than 0.2 VA at rated load Conversion range:..........0.05 to 20 × CT Nominal frequency: ........20 to 70 Hz Frequency range: ..........20 to 120 Hz Accuracy: ............at <...

  • Page 54: Output Relays

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION power factor; 3-phase real (kW), apparent (kVA), and reactive (kvar) power; thermal capacity used; relay lockout time, current demand; kvar, kW, and kVA demand; motor load, torque OUTPUT RELAYS Relay contacts are unsafe to touch when the 469 is energized! If the output relay contacts are required for low voltage accessible applications, it is the customer's responsibility to ensure proper insulation levels.

  • Page 55: Jogging Block

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION Timing accuracy: ...........<100 ms or ±0.5% of total time Elements:............Trip and Alarm GROUND INSTANTANEOUS OVERCURRENT Pickup level: ............0.1 to 1.0 × CT primary in steps of 0.01 Time delay:............0 to 1000 ms in steps of 10 Pickup accuracy: ...........as per ground current input Timing accuracy: ...........+50 ms Elements:............Trip and Alarm...

  • Page 56: Digital Inputs

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION Timing accuracy: ...........+50 ms Elements:............Trip REDUCED VOLTAGE START Transition level: ..........25 to 300% FLA in steps of 1 Transition time: ..........1 to 600 s in steps of 1 Transition control: .........Current, Timer, Current and Timer RESTART BLOCK Time delay: ............1 to 50000 s in steps of 1 Timing accuracy: ...........±0.5 s or ±0.5% of total time...

  • Page 57: Vibration Switch

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION Elements:............Trip and Alarm LOAD SHED Configuration: ..........assign to digital inputs 1 to 4 Timing accuracy: ...........100 ms maximum Elements:............Trip PRESSURE SWITCH Configuration: ..........assign to digital inputs 1 to 4 Time delay:............0.1 to 100.0 s in steps of 0.1 Block from start: ..........0 to 5000 s in steps of 1 Timing accuracy: ...........±250 ms or ±0.5% of total time Elements:............Trip and Alarm...
  • Page 58 All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION Description: ............Continuous total reactive energy generation Range:..............0 to 2000000.000 Mvar·hours Timing accuracy: ...........±0.5% Update Rate:.............5 seconds METERED REAL ENERGY CONSUMPTION Description: ............Continuous total real energy consumption Range:..............0 to 999999.999 MW·hours. Timing accuracy: ...........±0.5% Update rate:............5 seconds OVERTORQUE...

  • Page 59: Power Supply

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION 2.2.6 Power Supply CONTROL POWER Options:...............LO / HI (must be specified with order) LO range:............20 to 60 V DC 20 to 48 V AC at 48 to 62 Hz HI range:.............90 to 300 V DC 70 to 265 V AC at 48 to 62 Hz Power:..............45 VA (max), 25 VA typical Total loss of voltage ride through time...

  • Page 60: Production Tests

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION Standard Test Name Level GE Multilin Temperature Cycling –50°C / +80°C IEC 60068-2-38 Composite Temperature/Humidity 65/–10°C at 93% RH IEC 60255-5 Dielectric Strength 2300 V AC IEC 60255-5 Impulse Voltage...

  • Page 61: 2.2.10 Physical

    All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION 2.2.10 Physical CASE Type: ..............Fully drawout (automatic CT shorts) Seal: ..............Seal provision Mounting: ............Panel or 19-inch rack mount IP Class: ...............IP40-X PACKAGING Shipping box:............12” × 11” × 10” (W × H × D) 30.5 cm ×...
  • Page 62 All manuals and user guides at all-guides.com CHAPTER 2: INTRODUCTION 2–16 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 63: Chapter 3: Installation

    3.1.1 Description The 469 is packaged in the standard GE Multilin SR-series arrangement, which consists of a drawout unit and a companion fixed case. The case provides mechanical protection to the unit and is used to make permanent connections to all external equipment. The only electrical components mounted in the case are those required to connect the unit to the external wiring.

  • Page 64: Product Identification

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION FIGURE 3–1: Dimensions To prevent unauthorized removal of the drawout unit, a wire lead seal can be installed in the slot provided on the handle. With this seal in place, the drawout unit cannot be removed.

  • Page 65: Installation

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION The unit label details the following information: model number, type, serial number, manufacture date, phase current inputs, special notes, overvoltage category, insulation voltage, pollution degree, control power, and output contact rating. FIGURE 3–3: Case and Unit Identification Labels 3.1.3 Installation...
  • Page 66 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION FIGURE 3–4: Single 469 Cutout Panel FIGURE 3–5: Double 469 Cutout Panel After the mounting hole in the panel has been prepared, slide the 469 case into the panel from the front. Applying firm pressure on the front to ensure the front bezel fits snugly against the front of the panel, bend out the pair of retaining tabs (to a horizontal position) from each side of the case as shown below.

  • Page 67: Unit Withdrawal And Insertion

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION 808704A1.CDR FIGURE 3–6: Bend Up Mounting Tabs 3.1.4 Unit Withdrawal and Insertion TURN OFF CONTROL POWER BEFORE DRAWING OUT OR RE-INSERTING THE RELAY TO PREVENT MALOPERATION! If an attempt is made to install a unit into a non-matching case, the mechanical key will prevent full insertion of the unit.
  • Page 68 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION While holding the latch raised, grasp the locking handle in the center and pull firmly, rotating the handle up from the bottom of the unit until movement ceases. FIGURE 3–8: Rotate Handle to Stop Position Once the handle is released from the locking mechanism, the unit can freely slide out of the case when pulled by the handle.

  • Page 69: Ethernet Connection

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION When the unit is fully inserted, the latch will be heard to click, locking the handle in the final position. No special ventilation requirements need to be observed during the installation of the unit.

  • Page 70: Devicenet Connection

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION 3.1.6 DeviceNet Connection If using the 469 DeviceNet option (Refer to GEK-106491C: 469 Communications Guide), ensure that the network cable is disconnected from the rear terminal block before removing the unit out of the case to prevent any damage to the connector. The unit may also be removed from the case with the network cable connector still attached to the rear terminal block provided that there is at least 16"...

  • Page 71: Terminal Locations

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION 3.1.7 Terminal Locations FIGURE 3–11: Terminal Layout 3.1.8 Terminal List Table 3–1: 469 Terminal List Terminal Description Terminal Description RTD #1 Hot Assignable Switch 3 RTD #1 Compensation Assignable Switch 4 RTD Return Switch Common RTD #2 Compensation...
  • Page 72 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION Table 3–1: 469 Terminal List Terminal Description Terminal Description RTD #4 Compensation 1 Trip NO RTD #4 Hot 2 Auxiliary Common RTD #5 Hot 3 Auxiliary NC RTD #5 Compensation 3 Auxiliary NO RTD Return 4 Alarm COMMON...

  • Page 73: Electrical Installation

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION Electrical Installation 3.2.1 Typical Wiring FIGURE 3–12: Typical Wiring Diagram 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–11...

  • Page 74: Description

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION 3.2.2 Description A broad range of 469 applications are available. Although it is not possible to present typical connections for all possible schemes, this section will cover the interconnections of instrument transformer inputs, other inputs, outputs, communications, and grounding.

  • Page 75: Current Inputs

    Multilin 50:0.025 core-balance CT is to be used. For example, in mining applications where earth leakage current must be measured for personnel safety, primary ground current as low as 0.25 A may be detected with the GE Multilin 50:0.025 CT. Only one ground CT input tap should be used on a given unit.
  • Page 76 CT chosen must be capable of driving the 469 ground CT burden (see Specifications on page 2–6). The 469 measures up to 25 A of primary ground current if this tap is used in conjunction with the GE Multilin core balance CT. The zero-sequence connection is recommended. Unequal saturation of CTs, size and Note location of motor, resistance of power system and motor core saturation density, etc.,...
  • Page 77 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION FIGURE 3–15: Core Balance Ground CT Installation – Unshielded Cable FIGURE 3–16: Core Balance Ground CT Installation – Shielded Cable 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–15...
  • Page 78 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION Differential Current Inputs The 469 has three channels for differential current inputs, each with an isolating transformer. There are no internal ground connections on the current inputs. Each differential CT circuit is shorted by automatic mechanisms on the 469 case if the unit is withdrawn.

  • Page 79: Voltage Inputs

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION FIGURE 3–18: Summation Method with Phase CTs FIGURE 3–19: Summation Method without Phase CTs 3.2.5 Voltage Inputs The 469 has three channels for AC voltage inputs, each with an isolating transformer. There are no internal fuses or ground connections on the voltage inputs.

  • Page 80: Digital Inputs

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION Polarity of the VTs is critical for correct power measurement and voltage phase reversal operation. A 1 A fuse is typically used to protect the inputs. FIGURE 3–20: Wye Voltage Transformer Connection 3.2.6 Digital Inputs The digital inputs of the 469 relay are designed for dry contact connection.

  • Page 81: Analog Inputs

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION In addition, the +24 V DC switch supply is brought out for control power of an inductive or capacitive proximity probe. The NPN transistor output could be taken to one of the assignable digital inputs configured as a counter or tachometer.

  • Page 82: Rtd Sensor Connections

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION If a voltage output is required, a burden resistor must be connected at the input of the SCADA measuring device. Ignoring the input impedance of the input, R load full scale For 0 to 1 mA, for example, if 5 V full scale is required to correspond to 1 mA, R = 5 V / load...
  • Page 83 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION Motor Control Motor Terminal Box Compensation RTD1 – RTD Return – Compensation RTD2 Compensation RTD3 – RTD Return No connection 808722A2.CDR FIGURE 3–23: Reduced Wiring RTDs The Hot line would have to be run as usual for each RTD. The Compensation and Return leads, however, need only be run for the first RTD.

  • Page 84: 3.2.10 Output Relays

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION Motor Control Motor Terminal Box Rcomp Compensation RTD1 RTD Return – 808719A1.CDR FIGURE 3–24: 2-Wire RTD Lead Compensation The compensation lead L2 is added to compensate for Hot (L1) and Return (L3), assuming they are all of equal length and gauge.
  • Page 85 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION relays, being non-failsafe, will normally be de-energized and energize when called upon to operate. When the 469 control power is lost, these relays are de-energized and in their non-operated state. Shorting bars in the drawout case ensure that no trip or alarm occurs when the 469 is drawn out.

  • Page 86: 3.2.11 Drawout Indicator

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION FIGURE 3–26: Alternate Wiring for Contactors 3.2.11 Drawout Indicator The Drawout Indicator is simply a jumper from terminals E12 to F12. When the 469 is withdrawn from the case, terminals E12 and F12 are open. This may be useful for differentiating between loss of control power as indicated by the 6 SERVICE relay and withdrawal of the unit.

  • Page 87: 3.2.13 Dielectric Strength

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION The source computer/PLC/SCADA system should have similar transient protection devices installed, either internally or externally, to ensure maximum reliability. Ground the shield at one point only, as shown in the figure below, to avoid ground loops. Correct polarity is also essential.
  • Page 88 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION FIGURE 3–28: Testing for Dielectric Strength 3–26 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 89: 3.2.14 2-Speed Motor Wiring

    All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION 3.2.14 2-Speed Motor Wiring 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–27...
  • Page 90 All manuals and user guides at all-guides.com CHAPTER 3: INSTALLATION 3–28 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 91: Chapter 4: Interfaces

    All manuals and user guides at all-guides.com Digital Energy Multilin 469 Motor Management Relay Chapter 4: Interfaces Interfaces Faceplate Interface 4.1.1 Description The front panel provides local operator interface with a liquid crystal display, LED status indicators, control keys, and program port. The display and status indicators update alarm and status information automatically.

  • Page 92: Led Indicators

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES 4.1.3 LED Indicators There are three groups of LED indicators. They are 469 Status, Motor Status, and Output Relays. 806977A1.CDR FIGURE 4–1: 469 LED INDICATORS 469 Status LED Indicators • 469 IN SERVICE: This LED indicates that control power is applied, all monitored inputs/outputs and internal systems are OK, the 469 has been programmed, and the 469 is in protection mode, not simulation mode.

  • Page 93: Rs232 Port

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES diagnostic messages from the normally displayed messages, press the MENU until the following message is displayed. TARGET MESSAGES Now, press the key followed by the key to scroll through the MESSAGE MESSAGE messages.

  • Page 94: Keypad

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES 4.1.5 Keypad Description The 469 display messages are organized into main menus, pages, and sub-pages. There are three main menus labeled settings, Actual Values, and Target Messages. Pressing the key followed by the key scrolls through the three main MENU MESSAGE...
  • Page 95 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES keys scroll through any active conditions in the relay. MESSAGE MESSAGE Diagnostic messages are displayed indicating the state of protection and monitoring elements that are picked up, operating, or latched. When the Message LED is on, there are messages to be viewed with the key by selecting target messages as described MENU...

  • Page 96: Settings Entry

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES The 469 does not have ‘+’ or ‘–’ keys. Negative numbers may be entered in one of two manners. Immediately pressing one of the keys causes the settings to VALUE scroll through its range including any negative numbers.

  • Page 97: Diagnostic Messages

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES To enter a given Settings page, press the key. MESSAGE ENTER Press the keys to scroll through sub-page MESSAGE MESSAGE headers until the required message is reached. The end of a page is indicated by the message .

  • Page 98: Self-Test Warnings

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES key, followed by the key, to scroll through the messages. For MESSAGE MESSAGE additional information and a complete list of diagnostic messages, refer to Diagnostic Messages on page 6–37. 4.1.8 Self-Test Warnings The 469 relay performs self test diagnostics at initialization (after power up) and continuously as a background task to ensure the hardware and software is functioning...

  • Page 99: Flash Messages

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Table 4–1: Self-Test Warnings Message Severity Failure description Relay Not Configured This warning occurs when the 469 CT Primary or Minor Consult User Manual FLA is set to “None”. Caused by a failure of the real time clock circuit. Service Required Minor The ability of the relay to maintain the current...

  • Page 100: Enervista 469 Setup Software Interface

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES EnerVista 469 Setup Software Interface 4.2.1 Overview The front panel provides local operator interface with a liquid crystal display. The EnerVista 469 Setup software provides a graphical user interface (GUI) as one of two human interfaces to a 469 device.

  • Page 101: Hardware

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES 4.2.2 Hardware Communications from the EnerVista 469 Setup to the 469 can be accomplished three ways: RS232, RS485, and Ethernet communications. The following figures illustrate typical connections for RS232 and RS485 communications. For Ethernet connection details FIGURE 4–2: Communications using The Front RS232 Port 469 MOTOR MANAGEMENT RELAY –...
  • Page 102 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES FIGURE 4–3: Communications using Rear RS485 Port 808839A1.CDR FIGURE 4–4: Communications using Rear Ethernet Port 4–12 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 103: Installing The Enervista 469 Setup Software

    • Minimum of 200 MB hard disk space After ensuring these minimum requirements, use the following procedure to install the EnerVista 469 Setup software from the enclosed GE EnerVista CD. Insert the GE EnerVista CD into your CD-ROM drive. Click the Install Now button and follow the installation instructions to install the no-charge EnerVista software on the local PC.
  • Page 104 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Click the Add Now button to list software items for the 469. EnerVista Launchpad will obtain the latest installation software from the Web or CD and automatically start the installation process. A status window with a progress bar will be shown during the downloading process.
  • Page 105 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Click on Next to begin the installation. The files will be installed in the directory indicated and the installation program will automatically create icons and add EnerVista 469 Setup software to the Windows start menu. Click Finish to end the installation.

  • Page 106: Connecting Enervista 469 Setup To The Relay

    (for RS485 communications). See Hardware on page 4–11 for connection details. This example demonstrates an RS232 connection. For RS485 communications, the GE Multilin F485 converter will be required. Refer to the F485 manual for additional details. To configure the relay for Ethernet communications, see Configuring Ethernet Communications on page 4–18.

  • Page 107: Serial Ports

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Select “Serial” from the Interface drop-down list. This will display a number of interface parameters that must be entered for proper RS232 functionality. – Enter the slave address and COM port values (from the S1 469 SETUP menu) in the Slave Address and COM Port fields.

  • Page 108: Configuring Ethernet Communications

    Install and start the latest version of the EnerVista 469 Setup software (available from the GE enerVista CD). See the previous section for the installation procedure. Click on the Device Setup button to open the Device Setup window and click the Add Site button to define a new site.

  • Page 109: Connecting To The Relay

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Select “Ethernet” from the Interface drop-down list. This will display a number of interface parameters that must be entered for proper Ethernet functionality. Enter the IP address assigned to the relay. Enter the slave address and Modbus port values (from the S1 469 SETUP menu) in the Slave Address and Modbus Port...
  • Page 110 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Click the «+» box to expand the desired device trees. The following list of headers is shown for each device: • Device Definitions • Settings • Actual Values • Commands •...
  • Page 111 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES The front panel settings can now be edited, printed, or changed according to user specifications. Other settings and commands windows can be displayed and edited in a similar manner. Actual values windows are also available for display. These windows can be locked, arranged, and resized at will.

  • Page 112: Working With Settings And Settings Files

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Working with Settings and Settings Files 4.4.1 Engaging a Device The EnerVista 469 Setup software may be used in on-line mode (relay connected) to directly communicate with a 469 relay. Communicating relays are organized and grouped by communication interfaces and into sites.

  • Page 113: Connection Type

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Click on Cancel to exit from the keypad and retain the old value. For settings requiring non-numerical pre-set values (e.g. above, in the Voltage Sensing tab), click anywhere CONNECTION TYPE within the settings value box to display a drop-down selection menu arrow.
  • Page 114 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Settings files are organized on the basis of file names assigned by the user. A Settings file contains data pertaining to the following types of relay settings: • Device Definition •...
  • Page 115 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES The Open dialog box will appear, prompting for a previously saved Settings file. ® As for any other Windows application, browse for the file to add then click Open. The new file and complete path will be added to the file list. Creating a New Settings File using Motor Settings Auto-Config The EnerVista 469 Setup software allows the user to create new Settings files independent of a connected device.
  • Page 116 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES At the top of the screen, click on the Motor Settings Auto-Config button. On the main menu, select File > Motor Settings Auto-Config The EnerVista 469 Setup software displays the following box, allowing the configuration of the Settings File as shown.
  • Page 117 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES For future reference, enter some useful information in the Description box to facilitate the identification of the device and the purpose of the file. To select a file name and path for the new file, click the button [...] beside the File Name box.
  • Page 118 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Continue filling in the fields as indicated. Once you have completed all 6 Steps, the final window will show as follows: 4–28 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...
  • Page 119 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Click Finish to complete the Auto-Config procedure. The Motor Settings Auto-Config window will disappear. A new Settings File containing the parameters you have just input will appear in the Files pane as shown: Creating a New Settings File without using Motor Settings Auto-Config The EnerVista 469 Setup software allows the user to create new Settings files independent of a connected device.
  • Page 120 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES It is important to define the correct firmware version to ensure that settings not available Note in a particular version are not downloaded into the relay Select the Firmware Version for the new Settings File. For future reference, enter some useful information in the Description box to facilitate the identification of the device and the purpose of the file.
  • Page 121 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Enter the appropriate settings manually to complete the new Settings File. Upgrading Settings Files to a New Revision It is often necessary to upgrade the revision code for a previously saved Settings file after the 469 firmware has been upgraded (for example, this is required for firmware upgrades).
  • Page 122 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES From the main window menu bar, select the File > Properties menu item and note the version code of the Settings file. If this version (e.g. 4.0X shown below) is different than the Software Revision code noted in step 2, select a New File Version that matches the Software Revision code from the pull-down menu.
  • Page 123 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Click OK. The process for File > Print Preview Settings is identical to the steps above. Settings lists can be printed in the same manner by right clicking on the desired file (in the file list) or device (in the device list) and selecting the Print Device Information or Print Settings File options.
  • Page 124 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Select the File > Properties menu item and verify that the corresponding file is fully compatible with the hardware and firmware version of the target relay. If the versions are not identical, see Upgrading Settings Files to a New Revision on page 4–31 for details on changing the Settings file version.

  • Page 125: Upgrading Relay Firmware

    To upgrade the 469 firmware, follow the procedures listed in this section. Upon successful completion of this procedure, the 469 will have new firmware installed with the original settings. The latest firmware files are available from the GE Multilin website at http:// www.GEindustrial.com/multilin.
  • Page 126 Locate the firmware file to load into the 469. The firmware filename has the following format: 30 I 500 A8 . 000 Modification Number (000 = none) GE Multilin use only Firmware Version Required 469 hardware revision Product code (30 = 469) FIGURE 4–6: Firmware File Format...
  • Page 127 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Cycling power to the relay is recommended after a firmware upgrade. Note After successfully updating the 469 firmware, the relay will not be in service and will require settings programming. To communicate with the relay, the following settings will have to me manually programmed.

  • Page 128: Triggered Events

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Advanced EnerVista 469 Setup Features 4.6.1 Triggered Events While the interface is in either on-line or off-line mode, data generated by triggered specified parameters can be viewed and analyzed via one of the following: •...
  • Page 129 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES The waveform file numbering starts with the number zero in the 469; therefore, the maximum trigger number will always be one less then the total number triggers available. Click on the Save to File button to save the selected waveform to the local PC.

  • Page 130: Phasors

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES recorder. The event record will provide additional information on the cause and the system conditions at the time of the event. Additional information on how to download and save events is shown in Event Recorder on page 4–45. From the window main menu bar, press the Preference button to change the graph attributes.
  • Page 131 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES The EnerVista 469 Setup software will display the following window: Press the “View” button to display the following window: VOLTAGE LEVEL CURRENT LEVEL Displays the value Displays the value and the angle of and angle of the the voltage phasors current phasor...

  • Page 132: Trending (Data Logger)

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES 4.6.4 Trending (Data Logger) The trending or data logger feature is used to sample and record up to eight actual values at an interval defined by the user. Several parameters can be trended and graphed at sampling periods ranging from 1 second up to 1 hour.
  • Page 133 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES With EnerVista 469 Setup running and communications established, Select the Actual Values > Trending menu item to open the trending window. The following window will appear. To prepare for new trending, Select Stop to stop the data logger and Reset to clear the screen.
  • Page 134 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES To limit the size of the saved file, Enter a number in the Limit File Capacity To box. The minimum number of samples is 1000. At a sampling rate of 5 seconds (or 1 sample every 5 seconds), the file will contain data collected during the past 5000 seconds.

  • Page 135: Event Recorder

    All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES 4.6.5 Event Recorder The 469 event recorder can be viewed through the EnerVista 469 Setup software. The event recorder stores generator and system information each time an event occurs (e.g. breaker failure).

  • Page 136: Modbus User Map

    Modbus User Map The EnerVista 469 Setup software provides a means to program the 469 User Map (Modbus addresses 0180h to 01F7h). Refer to GE Publication GEK-106491C: 469 Communications Guide for additional information on the User Map. Select a connected device in EnerVista 469 Setup.
  • Page 137 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES • Active alarms. • Relay date and time. • Present blocking conditions. • General system status indication including the status of output relays, active pickup, alarm and trip conditions. Metering Data: •...
  • Page 138 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Selecting an actual values window also opens the actual values tree from the corresponding device in the site list and highlights the current location in the hierarchy. For complete details on actual values, refer to Chapter 6. To view a separate window for each group of actual values, select the desired item from the tree, and double click with the left mouse button.

  • Page 139: Using Enervista Viewpoint With The 469

    EnerVista Viewpoint. Information on license pricing can be found at http:// www.enervista.com. Install the EnerVista Viewpoint software from the GE EnerVista CD. Ensure that the 469 device has been properly configured for either serial or Ethernet communications (see previous sections for details).
  • Page 140 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES Enter the desired name in the Device Name field and a description (optional) of the site. Select the appropriate communications interface (Ethernet or Serial) and fill in the required information for the 469. See Connecting EnerVista 469 Setup to the Relay on page 4–16 for details.
  • Page 141 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES FIGURE 4–13: ‘Plug and Play’ Dashboard Click the Dashboard button below the 469 icon to view the device information. We have now successfully accessed our 469 through EnerVista Viewpoint. 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–51...
  • Page 142 All manuals and user guides at all-guides.com CHAPTER 4: INTERFACES FIGURE 4–14: EnerVista Plug and Play Screens For additional information on EnerVista viewpoint, please visit the EnerVista website at http://www.enervista.com. 4–52 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 143: Chapter 5: Settings

    All manuals and user guides at all-guides.com Digital Energy Multilin 469 Motor Management Relay Chapter 5: Settings Settings Overview 5.1.1 Settings Message Map The 469 has a considerable number of programmable settings which makes it extremely flexible. The settings have been grouped into a number of pages and sub-pages as shown below.
  • Page 144 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS See page –17. SETTINGS CURRENT MESSAGE See page –19. VOLTAGE MESSAGE See page –19. POWER SERIAL MESSAGE See page –20. COMM. MESSAGE See page –21. REDUCED END OF PAGE MESSAGE See page –25.
  • Page 145 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS See page –59. SETTINGS SHORT MESSAGE See page –60. OVERLOAD MESSAGE See page –60. MECHANICAL MESSAGE See page –61. UNDERCURRENT MESSAGE See page –62. CURRENT GROUND MESSAGE See page –63. FAULT MESSAGE See page –64.
  • Page 146 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS MESSAGE See page –75. OPEN MESSAGE See page –75. END OF PAGE MESSAGE See page –76. SETTINGS UNDERVOLTAGE MESSAGE See page –78. OVERVOLTAGE MESSAGE See page –78. PHASE MESSAGE See page –79. FREQUENCY END OF PAGE MESSAGE...
  • Page 147 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS kvar MESSAGE See page –87. DEMAND MESSAGE See page –87. DEMAND MESSAGE See page –89. PULSE END OF PAGE MESSAGE See page –91. SETTINGS ANALOG MESSAGE See page –91. ANALOG MESSAGE See page –91.

  • Page 148: Trips, Alarms, And Blocks

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS MESSAGE See page –101. TEST MESSAGE See page –102. COMMUNICATION MESSAGE See page –102. MULTILIN END OF PAGE MESSAGE See page –103. SETTINGS SPEED2 MESSAGE See page –107. SPEED2 MESSAGE See page –107.

  • Page 149: Relay Assignment Practices

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS on the other hand, an unlatched alarm feature becomes active, that alarm will reset itself (and associated output relay(s)) as soon as the condition that caused the alarm ceases. As soon as an alarm occurs, the alarms messages are updated to reflect the alarm and the 469 display defaults to that message.

  • Page 150: S1 469 Setup

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S1 469 Setup 5.2.1 Passcode PATH: SETTINGS S1 469 SETUP PASSCODE Range: 1 to 8 numeric digits ENTER PASSCODE PASSCODE Range: Permitted, Restricted settings ACCESS: MESSAGE Permitted Range: No, Yes CHANGE PASSWORD: MESSAGE A passcode access security feature is provided in addition to the settings access jumper.

  • Page 151: Preferences

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.2.2 Preferences PATH: SETTINGS S1 469 SETUP PREFERENCES Range: 0.5 to 10.0 s in steps of 1 DEFAULT MESSAGE PREFERENCES CYCLE TIME: 2.0 s Range: 10 to 900 s in steps of 1 DEFAULT MESSAGE MESSAGE TIMEOUT: 300 s...

  • Page 152: Communications

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS protection or function timing in any way. It can be used to steady the display when readings are bouncing. • MOTOR LOAD FILTER INTERVAL: This value (when non-zero) averages current and power factor for the programmed number of cycles using a running average technique.
  • Page 153 DCS, PLC, or PC. The auxiliary RS485 port may be used for redundancy or, it may be used to talk to auxiliary GE Multilin devices. The RS485 COM2 port is disabled if the Ethernet or DeviceNet option is ordered.
  • Page 154 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS The following settings appear when the relay is ordered with the DeviceNet (D) option. PATH: SETTINGS S1 469 SETUP COMMUNICATIONS Range: 1 to 254 in steps of 1 SLAVE ADDRESS: COMMUNICATIONS Range: 300, 1200, 2400, 4800, 9600, COMPUTER RS485...

  • Page 155: Real Time Clock

    There can be up to 100 ms of delay in receiving serial commands so the clock time in each relay is ±100 ms, ± the absolute clock accuracy in the PLC or PC. Refer to GE publication GEK-106491: 469 Communications Guide for information on programming the time preload and synchronizing commands.

  • Page 156: Message Scratchpad

    MESSAGE Range: 40 alphanumeric characters TEXT 2 MESSAGE Range: 40 alphanumeric characters TEXT 3 MESSAGE Range: 40 alphanumeric characters TEXT 4 MESSAGE Range: 40 alphanumeric characters GE MULTILIN MESSAGE 469 MOTOR RELAY 5–14 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 157: Clear Data

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Up to five (5) message screens can be programmed under the message scratchpad area. These messages may be notes that pertain to the installation or the motor or any other information deemed pertinent by the user.

  • Page 158: Installation

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS • CLEAR ANALOG I/P MIN/MAX: The minimum and maximum analog input values are stored for each analog input. These minimum and maximum values may be cleared at any time. • CLEAR TRIP COUNTERS: There are counters for each possible type of trip.

  • Page 159: S2 System Setup

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S2 System Setup 5.3.1 Current Sensing PATH: SETTINGS S2 SYSTEM SETUP CURRENT SENSING Range: 1 to 5000 A in steps of 1. Values PHASE CT PRIMARY: ≥5001 denote not CURRENT Not Programmed Range: 1 to 5000 A in steps of 1.
  • Page 160 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS input should be used for either zero-sequence or residual ground sensing. If the connection is residual, the Ground CT secondary and primary values should be the same as the phase CT. If however, the connection is zero-sequence, the Ground CT secondary and primary values must be entered.

  • Page 161: Voltage Sensing

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 350” PHASE CT PRIMARY: “ “330” MOTOR FULL LOAD AMPS: “50:0.025” GROUND CT: 5.3.2 Voltage Sensing PATH: SETTINGS S2 SYSTEM SETUP VOLTAGE SENSING Range: Open Delta, Wye, None VT CONNECTION VOLTAGE TYPE: Range: AN, BN, CN, OFF or AB, BC, OFF...

  • Page 162: Communications Control

    A contactor sealing contact would be used to maintain the circuit. For details on issuing a start or stop command via communications, refer to GE publication GEK-106491: 469 Communications Guide.

  • Page 163: Reduced Voltage

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.3.5 Reduced Voltage PATH: SETTINGS S2 SYSTEM SETUP REDUCED VOLTAGE STARTING Range: On, Off REDUCED VOLTAGE REDUCED STARTING: Off Range: Auxilary2, Aux2 & Aux3, ASSIGN CONTROL MESSAGE Auxiliary3 RELAYS: Range: Current Only, Current or Timer, TRANSITION ON: MESSAGE Current and Timer...
  • Page 164 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS REDUCED VOLTAGE TRIP STOP START BLOCK CONTACTOR SEAL IN 3 AUX FULL VOLTAGE CONTACTOR CC2 SEAL IN 808724A2.CDR FIGURE 5–1: Reduced Voltage Start Contactor Control Circuit When the currrent falls below MOTOR the Transition Level and/or the AMPS...
  • Page 165 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS REDUCED VOLTAGE FULL VOLTAGE AUXILIARY ‘a’ AUXILIARY ‘a’ STARTER STATUS SWITCH INPUT (Setpoint = ‘Starter Auxiliary A’) REDUCED VOLTAGE STARTER AUXILIARY ‘A’ STATUS INPUT REDUCED VOLTAGE AUXILIARY ‘b’ STARTER STATUS SWITCH INPUT (Setpoint = ‘Starter Auxiliary B’) FULL VOLTAGE...

  • Page 166: S3 Digital Inputs

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S3 Digital Inputs 5.4.1 Description Overview The 469 relay has nine (9) digital inputs. Five of the digital inputs have been pre-assigned as switches having a specific function. Four of the five pre-assigned digital inputs are always functional and do not have any settings messages associated with them.

  • Page 167: Starter Status

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Remote Reset Shorting terminals D18 and D23 resets any trips or latched alarms provided that the condition that caused the alarm or trip is no longer present. If there is a lockout time the Block Start relay will not reset until the lockout time has expired.
  • Page 168 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS There are four (4) user-assignable digital inputs configurable to a number of different functions (see below), or turned Off. Once a function is chosen, any messages that follow may be used to set pertinent parameters for operation. Each function may only be chosen once.
  • Page 169 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS These settings apply only if the is “Remote Trip”. INPUT 1(4) FUNCTION Once the Remote Trip function is chosen for one of the assignable digital inputs, the settings messages shown here will follow the assignment message. A trip relay may be selected and the name of the trip may be altered.
  • Page 170 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Pressure Switch Alarm PATH: SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1(4) Range: See above INPUT 1 FUNCTION: ASSIGNABLE Pressure Sw Alarm Range: 0 to 5000 s in steps of 1 BLOCK PRES.
  • Page 171 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Vibration Switch Alarm PATH: SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1(4) Range: See above INPUT 1 FUNCTION: ASSIGNABLE Vibration Sw Range: Latched, Unlatched VIBRATION SWITCH MESSAGE ALARM: Unlatched Range: Alarm, Alarm & Auxiliary2, ASSIGN ALARM MESSAGE Alarm &...
  • Page 172 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Digital Counter PATH: SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1(4) Range: See above INPUT 1 FUNCTION: ASSIGNABLE Digital Counter Range: 6 alphanumeric characters COUNTER UNITS: MESSAGE Units Range: 0 to 1000000000 in steps of 1 COUNTER PRESET MESSAGE VALUE: 0...
  • Page 173 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: Off, Latched, Unlatched TACHOMETER MESSAGE ALARM: Off Range: Alarm, Alarm & Auxiliary2, ASSIGN ALARM MESSAGE Alarm & Aux2 & Aux3, Alarm & RELAYS: Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3 Range: 5 to 100% in steps of 1 TACHOMETER ALARM MESSAGE...
  • Page 174 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS General Switch A to D PATH: SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1(4 Range: See above INPUT 1 FUNCTION: ASSIGNABLE General Sw. A Range: 12 alphanumeric characters SWITCH NAME: MESSAGE General Sw.
  • Page 175 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Setting the to “Capture Trace” allows for trace capture upon INPUT 1(4) FUNCTION command via a switch input. The captured waveforms can be displayed with the relay software. There are no additional settings associated with this value. Simulate Pre-Fault PATH: SETTINGS S3 DIGITAL INPUTS...

  • Page 176: S4 Output Relays

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S4 Output Relays 5.5.1 Description Five of the six output relays are always non-failsafe; the 6 SERVICE relay is always failsafe. As failsafe, the 6 SERVICE relay will be energized normally and de-energize when called upon to operate.

  • Page 177: Force Output Relay

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS For example, serious trips such as Short Circuit and Ground Fault may be assigned to the 2 AUXILIARY relay so that they can only be reset via the remote reset terminals (D18 and D23) or the communication port.

  • Page 178: S5 Thermal Model

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S5 Thermal Model 5.6.1 Motor Thermal Limits One of the principle enemies of motor life is heat. When a motor is specified, the purchaser communicates to the manufacturer what the loading conditions and duty cycle will be, as well as, environment and other pertinent information about the driven load such as starting torque, etc.
  • Page 179 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS HIGH INERTIA RUNNING OVERLOAD MOTOR A,B,AND C ARE THE ACCELERATION THERMAL LIMIT CURVES AT 100%, 90%, AND 80%VOLTAGE, REPECTIVELY E,F, AND G ARE THE SAFE STALL THERMAL LIMIT TIMES AT 100%, 90%, AND 80%VOLTAGE, REPECTIVELY % CURRENT 806827A1.CDR...

  • Page 180: Thermal Model

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.6.2 Thermal Model PATH: SETTINGS S5 THERMAL MODEL THERMAL MODEL Range: Standard, Custom, Voltage SELECT CURVE Dependent THERMAL STYLE: Range: 1.01 to 1.25 in steps of 0.01 OVERLOAD PICKUP MESSAGE LEVEL: 1.01 x FLA Range: Trip, Trip &...

  • Page 181: Overload Curve Setup

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS and the should be zero. If the motor is in overload, once MOTOR THERMAL CAPACITY USED the thermal capacity used reaches 100%, a trip will occur. The THERMAL CAPACITY ALARM may be used as a warning indication of an impending overload trip.
  • Page 182 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS If the motor starting times are well within the safe stall times, it is recommended that the 469 Standard Overload Curve be used. The standard overload curves are a series of 15 curves with a common curve shape based on typical motor thermal limit curves (see the figure and table below).
  • Page 183 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Table 5–1: 469 Standard Overload Curve Multipliers PICKUP STANDARD CURVE MULTIPLIERS (× FLA) × 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9 ×...
  • Page 184 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Table 5–1: 469 Standard Overload Curve Multipliers PICKUP STANDARD CURVE MULTIPLIERS (× FLA) × 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9 ×...
  • Page 185 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Custom Overload Curve If the is set to “Custom” in the Thermal Model, the following settings SELECT CURVE STYLE will appear: PATH: SETTINGS S5 THERMAL MODEL OVERLOAD CURVE SETUP Range: 0.5 to 99999.9 s in steps of 0.1 TIME TO TRIP AT OVERLOAD 1.01 x FLA:...
  • Page 186 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 0.5 to 99999.9 s in steps of 0.1 TIME TO TRIP AT MESSAGE 4.75 x FLA: 16.2 Range: 0.5 to 99999.9 s in steps of 0.1 TIME TO TRIP AT MESSAGE 5.00 x FLA: 14.6 Range: 0.5 to 99999.9 s in steps of 0.1...
  • Page 187 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS GE Multilin TYPICAL CUSTOM CURVE 6500 HP, 13800 VOLT INDUCED DRAFT FAN MOTOR 10000 PROGRAMMED 469 CUSTOM CURVE RUNNING SAFETIME (STATOR LIMIT) ACCELERATION SAFETIME (ROTOR LIMIT) MOTOR CURRENT at 100% VOLTAGE...
  • Page 188 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Voltage Dependent Overload Curves If the is set to “Voltage Dependent” in the Thermal Model, the SELECT CURVE STYLE following settings will appear: PATH: SETTINGS S5 THERMAL MODEL OVERLOAD CURVE SETUP Range: 0.5 to 99999.9 s in steps of 0.1 TIME TO TRIP AT OVERLOAD...
  • Page 189 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 0.5 to 99999.9 s in steps of 0.1 TIME TO TRIP AT MESSAGE 4.75 x FLA: 16.2 Range: 0.5 to 99999.9 s in steps of 0.1 TIME TO TRIP AT MESSAGE 5.00 x FLA: 14.6 Range: 0.5 to 99999.9 s in steps of 0.1...
  • Page 190 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Overload Curve feature is tailored to protect these types of motors. Voltage is continually monitored during motor starting and the acceleration thermal limit curve is adjusted accordingly. The Voltage Dependent Overload Curve is comprised of the three characteristic shapes of thermal limit curves as determined by the stall or locked rotor condition, acceleration, and running overload.
  • Page 191 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS FIGURE 5–8: Thermal Limits for High Inertial Load To illustrate the Voltage Dependent Overload Curve feature, the thermal limits of FIGURE 5–8: Thermal Limits for High Inertial Load will be used. Construct a custom curve for the running overload thermal limit.
  • Page 192 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS GE Multilin HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP, 13.2 kV, REACTOR COOLANT PUMP 1000 469 Custom Curve MULTIPLES OF FULL LOAD AMPS 806822A4.CDR FIGURE 5–9: Voltage Dependent Overload Curve (Custom Curve) 5–50...
  • Page 193 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS GE Multilin HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP, 13.2 kV, REACTOR COOLANT PUMP 1000 Acceleration intersect at 80%V Acceleration Intersect at 100%V MULTIPLES OF FULL LOAD AMPS 806823A4.CDR FIGURE 5–10: Voltage Dependent Overload Curves (Acceleration Curves) 469 MOTOR MANAGEMENT RELAY –...
  • Page 194 100% voltage and multiplying by 1.10. For trip times above the 110% voltage level, the trip time of 110% will be used (see figure below). GE Multilin HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP, 13.2 kV, REACTOR COOLANT PUMP...
  • Page 195 100% line voltage, respectively. For voltages in between, the 469 will shift the acceleration curve linearly and constantly based on measured line voltage during a motor start. GE Multilin HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP, 13.2 kV, REACTOR COOLANT PUMP...
  • Page 196 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS GE Multilin HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP, 13.2 kV, REACTOR COOLANT PUMP 1000 MULTIPLES OF FULL LOAD AMPS 806826A4.CDR FIGURE 5–13: Voltage Dependent Overload Protection at 100% Voltage...
  • Page 197 0.167, voltage unbalances of 1, 2, 3, 4, and 5% equal current unbalances of 6, 12, 18, 24, and 30% respectively. Based on this assumption, the GE Multilin curve illustrates the motor derating for different values of k entered for the settings.
  • Page 198 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS t τ ⁄ – (EQ 5.5) – used used_start used_end used_end ⎛ ⎞ 1 ⎛ ⎞ ---------------- × 100% --------- - (EQ 5.6) – ⎝ ⎠ ⎝ ⎠ used_end ol_pkp cold where: TC = thermal capacity used...
  • Page 199 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS at a level that is below the , the register OVERLOAD PICKUP LEVEL THERMAL CAPACITY USED will rise or fall to a value based on the average phase current and the HOT/COLD SAFE settings.
  • Page 200 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS In simple terms, the RTD bias feature is real feedback of the measured stator temperature. This feedback acts as correction of the thermal model for unforeseen situations. Since RTDs are relatively slow to respond, RTD biasing is good for correction and slow motor heating.

  • Page 201: S6 Current Elements

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S6 Current Elements 5.7.1 Short Circuit Trip PATH: SETTINGS S6 CURRENT ELEM. SHORT CIRCUIT TRIP Range: Off, Latched, Unlatched SHORT CIRCUIT SHORT TRIP: Off Range: On, Off SHORT CIRCUIT MESSAGE TRIP Range: Tri, Trip &...

  • Page 202: Overload Alarm

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS be increased if nuisance tripping occurs. When a motor starts, the starting current (typically 6 × FLA for an induction motor) has an asymmetrical component. This asymmetrical current may cause one phase to see as much as 1.6 times the normal RMS starting current.

  • Page 203: Undercurrent

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS If turned On, the Mechanical Jam element function as follows. After a motor start, a Trip occurs once the magnitude of Ia, Ib, or Ic exceeds the Pickup Level × FLA for a period of time specified by the settings.

  • Page 204: Current Unbalance

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS For example, if a pump is cooled by the liquid it pumps, loss of load may mean that the pump overheats. In this case, enable the undercurrent feature. If the motor loading should never fall below 0.75 ×...

  • Page 205: Ground Fault

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS unbalances are common, a reasonable delay should be set to avoid nuisance trips or alarms. The unbalance bias feature is recommended to bias the thermal model for motor heating caused by cyclic short term unbalances (see page –54 for details). Unusually high unbalance levels may be caused by incorrect phase CT wiring.

  • Page 206: Phase Differential

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 10 to 2000 ms in steps of 10 GROUND FAULT TRIP MESSAGE BACKUP DELAY: 200 settings are entered in Note GROUND FAULT ALARM PICKUP GROUND FAULT TRIP PICKUP units of ‘× CT’ if the Ground CT is programmed as 1 A or 5 A Secondary or in units of ‘A’ is the Ground CT is programmed as “50:0.025”.
  • Page 207 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: Trip, Trip & Auxiliary2, Trip & ASSIGN TRIP MESSAGE Aux2 & Aux3, Auxiliary2, Aux2 RELAYS: & Aux3, Auxiliary3 Range: 0.05 to 1.00 x CT in steps of STARTING DIFF. MESSAGE 0.01 TRIP PICKUP: 0.10...

  • Page 208: Acceleration Timer

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S7 Motor Starting 5.8.1 Acceleration Timer PATH: SETTINGS S7 MOTOR STARTING ACCELERATION TIMER Range: Off, Latched, Unlatched ACCELERATION ACCELERATION TIMER Range: Trip, Trip & Auxiliary2, Trip & ASSIGN TRIP MESSAGE Aux2 &...
  • Page 209 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS phase current rises from 0 to greater than overload pickup and then, after acceleration, falls below the overload curve pickup level. If the Start Inhibit feature is enabled, the amount of thermal capacity available (100% – ) is compared to THERMAL CAPACITY USED each time the motor is stopped.
  • Page 210 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS • Max. Starts/Hour Permissible: A motor start is assumed to be occurring when the 469 measures the transition of no motor current to some value of motor current. At this point, one of the Starts/Hour timers is loaded with 60 minutes.

  • Page 211: Restart Block

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.8.4 Restart Block PATH: SETTINGS S7 MOTOR STARTING RESTART BLOCK Range: On, Off RESTART BLOCK: RESTART Range: 1 to 50000 s in steps of 1 RESTART BLOCK MESSAGE TIME: 1 s The Restart Block feature may be used to ensure that a certain amount of time passes between stopping a motor and restarting that motor.

  • Page 212: S8 Rtd Temperature

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS S8 RTD Temperature 5.9.1 RTD Types PATH: SETTINGS S8 RTD TEMPERATURE RTD TYPES Range: see below STATOR RTD TYPE: TYPES 100 Ohm Platinum Range: see below BEARING RTD TYPE: MESSAGE 100 Ohm Platinum Range: see below AMBIENT RTD TYPE:...
  • Page 213 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Table 5–2: RTD Temperature vs. Resistance Temperature 100 Ω Pt 120 Ω Ni 100 Ω Ni 10 Ω Cu (DIN 43760) ° C ° F 164.76 269.91 224.92 15.61 168.47 280.77 233.97 16.00...
  • Page 214 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 1 to 250°C in steps of 1 RTD #1 TRIP MESSAGE TEMPERATURE: RTDs 1 through 6 default to “Stator” RTD type. There are individual alarm and trip configurations for each RTD. This allows one of the RTDs to be turned off if it malfunctions. The alarm level is normally set slightly above the normal running temperature.
  • Page 215 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS RTDs 7 through 10 default to “Bearing” RTD type. There are individual alarm and trip configurations for each RTD. This allows one of the RTDs to be turned off if it malfunctions. The alarm level, high alarm level and the trip level are normally set slightly above the normal running temperature, but below the bearing temperature rating.
  • Page 216 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS RTD. Trip voting has been added for extra reliability in the event of RTD malfunction. If enabled, a second RTD must also exceed the trip temperature of the RTD being checked before a trip will be issued.
  • Page 217 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.9.6 Open RTD Sensor PATH: SETTINGS S8 RTD TEMPERATURE OPEN RTD SENSOR Range: Off, Latched, Unlatched OPEN RTD SENSOR: OPEN Range: Alarm, Alarm & Auxiliary2, ASSIGN ALARM MESSAGE Alarm & Aux2 & Aux3, Alarm & RELAYS: Auxiliary3, Auxiliary2, Aux2 &...

  • Page 218: S9 Voltage Elements

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.10 S9 Voltage Elements 5.10.1 Undervoltage PATH: SETTINGS S9 VOLTAGE ELEM. UNDERVOLTAGE Range: No, Yes U/V ACTIVE ONLY UNDERVOLTAGE Range: Off, Latched, Unlatched UNDERVOLTAGE MESSAGE ALARM: Off Range: Alarm, Alarm & Auxiliary2, ASSIGN ALARM MESSAGE Alarm &...
  • Page 219 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS If the undervoltage alarm feature is enabled, an alarm will occur once the magnitude of either Vab, Vbc, or Vca falls below the pickup level while running or starting for a period of time specified by the delay (note that pickup levels are multiples of motor nameplate voltage).
  • Page 220 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS to “3-Phase”, when the settings Note UNDERVOLTAGE TRIP MODE S2 SYSTEM SETUP is set to “On”. The relay assumes a VOLTAGE SENSING ENABLE SINGLE VT OPERATION balanced three phase system when fed from a single VT. 5.10.2 Overvoltage PATH: SETTINGS S9 VOLTAGE ELEM.
  • Page 221 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS The 469 can detect the phase rotation of the three phase voltage. If the Phase Reversal feature is turned on when all 3 phase voltages are greater than 50% motor nameplate voltage, and the phase rotation of the three phase voltages is not the same as the settings, a trip and block start will occur in 500 to 700 ms.

  • Page 222: S10 Power Elements

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.11 S10 Power Elements 5.11.1 Power Measurement Conventions By convention, an induction motor consumes Watts and vars. This condition is displayed on the 469 as +Watts and +vars. A synchronous motor can consume Watts and vars or consume Watts and generate vars.
  • Page 223 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.11.2 Power Factor PATH: SETTINGS S10 POWER ELEMENTS POWER FACTOR Range: 0 to 5000 s in steps of 1 BLOCK PF ELEMENT POWER FROM START: 1 s Range: Off, Latched, Unlatched POWER FACTOR MESSAGE ALARM: Off...
  • Page 224 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.11.3 Reactive Power PATH: SETTINGS S10 POWER ELEMENTS REACTIVE POWER Range: 0 to 5000 s in steps of 1 BLOCK kvar ELE- REACTIVE MENT Range: Off, Latched, Unlatched REACTIVE POWER MESSAGE ALARM: Off Range: Alarm, Alarm &...
  • Page 225 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.11.4 Underpower PATH: SETTINGS S10 POWER ELEMENTS UNDERPOWER Range: 0 to 15000 s in steps of 1 BLOCK UNDERPOWER UNDERPOWER FROM START: 0 s Range: Off, Latched, Unlatched UNDERPOWER MESSAGE ALARM: Off Range: Alarm, Alarm &...
  • Page 226 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.11.5 Reverse Power PATH: SETTINGS S10 POWER ELEMENTS REVERSE POWER Range: 0 to 50000 s in steps of 1 BLOCK REVERSE REVERSE POWER Range: Off, Latched, Unlatched REVERSE POWER MESSAGE ALARM: Off Range: Alarm, Alarm &...
  • Page 227 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Before torque can be determined, the motor stator resistance and number of pole pairs must be entered here. The base stator resistance can be determined from the motor’s rated voltage and current. Torque metering is intended for induction motors only, and only positive torque is calculated.

  • Page 228: Starter Failure

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.12 S11 Monitoring 5.12.1 Trip Counter PATH: SETTINGS S11 MONITORING TRIP COUNTER Range: Off, Latched, Unlatched TRIP COUNTER TRIP ALARM: Off Range: Alarm, Alarm & Auxiliary2, ASSIGN ALARM MESSAGE Alarm & Aux2 & Aux3, Alarm & RELAYS: Auxiliary3, Auxiliary2, Aux2 &...

  • Page 229: Current Demand

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS the breaker or contactor operating time. If an alarm occurs and “Breaker” was chosen as the starter type, the alarm will be Breaker Failure. If “Contactor” was chosen for starter type, the alarm will be Welded Contactor.
  • Page 230 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: On, Off CURRENT DEMAND MESSAGE ALARM EVENTS: Off Range: 5 to 90 min. in steps of 1 kW DEMAND DEMAND PERIOD: 15 min. Range: Off, Latched, Unlatched kW DEMAND MESSAGE ALARM: Off Range: Alarm, Alarm &...

  • Page 231: Pulse Output

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS period. The average value of the buffer is calculated and stored as the new demand value every minute. Demand for real and reactive power is only positive quantities (+kW and +kvar).
  • Page 232 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS This feature configures one or more of the output relays as a pulsed output. When the programmed interval has transpired the assigned relay will be activated for 1 second. This feature should be programmed such that no more than one pulse per second will be Note required or the pulsing will lag behind the interval activation.

  • Page 233: S12 Analog Inputs/Outputs

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.13 S12 Analog Inputs/Outputs 5.13.1 Analog Outputs 1 to 4 PATH: SETTINGS S12 ANALOG I/O ANALOG OUTPUT 1 Range: See Analog Output Parameter ANALOG OUTPUT 1: Selection Table on page 5–92 ANALOG Therm.

  • Page 234: Parameter Name

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Table 5–3: Analog Output Parameter Selection Table PARAMETER NAME RANGE / UNITS STEP DEFAULT MIN. Phase A Current 0 to 100000 A Phase B Current 0 to 100000 A Phase C Current 0 to 100000 A Avg.
  • Page 235 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Table 5–3: Analog Output Parameter Selection Table PARAMETER NAME RANGE / UNITS STEP DEFAULT MIN. MWhrs 0.000 to 999999.999 MWhrs 0.001 50.000 100.000 Analog In Diff 1-2 –50000 to +50000 Analog In Diff 3-4 –50000 to +50000 Torque...

  • Page 236: Analog Input

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: –50000 to 50000 in steps of 1 ANALOG INPUT 1 MESSAGE Units reflect ANALOG INPUT 1 TRIP above UNITS Range: Over, Under ANALOG INPUT 1 MESSAGE TRIP Range: 0.1 to 300.0 s in steps of 0.1 ANALOG INPUT 1 MESSAGE TRIP...
  • Page 237 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.13.3 Analog Input Diff 1-2 PATH: SETTINGS S12 ANALOG I/O ANALOG INPUT DIFF 1–2 Range: Disabled, Enabled ANALOG ANALOG IN DIFF 1- INPUT Range: 12 alphanumeric characters ANALOG IN DIFF 1- MESSAGE Range: % Diff, Abs.
  • Page 238 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS For example, two motors on a dual motor drive are each protected a 469. The motors should be at the same power level (kW). Connect the analog outputs (programmed for kW) from both relays to the analog inputs of one relay.
  • Page 239 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS This feature compares two of the analog inputs and activate alarms or trips based on the difference between them. The difference can be of an absolute difference in units or a percentage difference.

  • Page 240: Simulation Mode

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.14 S13 469 Testing 5.14.1 Simulation Mode PATH: SETTINGS S13 469 TESTING SIMULATION MODE Range: Off, Simulate Pre-Fault, SIMULATION MODE: Simulate Fault, Pre-Fault to SIMULATION Fault Range: 0 to 300 s in steps of 1 PRE-FAULT TO MESSAGE FAULT...
  • Page 241 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.14.2 Pre-Fault Setup PATH: SETTINGS S13 469 TESTING PRE-FAULT SETUP Range: 0.00 to 20.00 x CT in steps of PRE- PRE-FAULT CURRENT 0.01 FAULT PHASE A: 0.00 x Range: 0.00 to 20.00 x CT in steps of PRE-FAULT CURRENT MESSAGE 0.01...
  • Page 242 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.14.3 Fault Setup PATH: SETTINGS S13 469 TESTING FAULT SETUP Range: 0.00 to 20.00 x CT in steps of FAULT CURRENT 0.01 FAULT PHASE A: 0.00 x Range: 0.00 to 20.00 x CT in steps of FAULT CURRENT MESSAGE 0.01...

  • Page 243: Test Output Relays

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.14.4 Test Output Relays PATH: SETTINGS S13 469 TESTING TEST OUTPUT RELAYS Range: Disabled, 1 Trip, 2 Auxiliary, FORCE OPERATION 3 Auxiliary, 4 Alarm, 5 Block, TEST 6 Service, All Relays, No Relays In addition to the simulation modes, the settings group may be used TEST OUTPUT RELAYS...

  • Page 244: Comm Port Monitor

    5.14.7 GE Multilin Use Only PATH: SETTINGS S13 469 TESTING GE MULTILIN USE ONLY Range: N/A GE MULTILIN USE MULTILIN ONLY This section is for use by GE Multilin personnel for testing and calibration purposes. 5–102 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 245: S14 Two-Speed Motor

    All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS 5.15 S14 Two-Speed Motor 5.15.1 Description The two-speed motor feature provides proper protection for a two-speed motor where there will be two different full load values. The algorithm integrates the heating at each speed into one thermal model using a common thermal capacity used register value for both speeds.
  • Page 246 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE 1.30 x FLA: 507.2 Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE 1.40 x FLA: 364.6 Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE...
  • Page 247 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE 7.50 x FLA: 6.3 s Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE 8.00 x FLA: 5.6 s Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE...
  • Page 248 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE 3.00 x FLA: 43.7 Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE 3.25 x FLA: 36.6 Range: 0.5 to 99999.9 in steps of 0.1 SPEED2 TRIP AT MESSAGE...
  • Page 249 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 2.00 to SPEED2 ISTALL @ MIN SPEED2 ACL INTER- MESSAGE – 0.01 in steps of 0.01 VLINE SECT Range: 2.00 to 15.00 x FLA in steps of SPEED2 ISTALL @ MESSAGE 0.01 100%...
  • Page 250 All manuals and user guides at all-guides.com CHAPTER 5: SETTINGS Range: 1.0 to 250.0 s in steps of 0.1. SPEED SWITCH TRIP MESSAGE Seen only if one of the digital SPEED2 DELAY: 5.0 inputs is assigned as Speed Switch Range: 100 to 7200 RPM in steps of 1. SPEED2 RATED MESSAGE Seen only if one of the digital...

  • Page 251: Chapter 6: Actual Values

    All manuals and user guides at all-guides.com Digital Energy Multilin 469 Motor Management Relay Chapter 6: Actual Values Actual Values Overview 6.1.1 Actual Values Map The actual values message map is shown below. ACTUAL NETWORK See page –4. VALUES STATUS MOTOR MESSAGE See page –5.
  • Page 252 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES MESSAGE See page –12. TEMPERATURE MESSAGE See page –13. VOLTAGE MESSAGE See page –13. SPEED MESSAGE See page –14. POWER MESSAGE See page –15. DEMAND MESSAGE See page –15. ANALOG MESSAGE See page –16.
  • Page 253 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES EVENT MESSAGE See page –33. END OF PAGE MESSAGE ACTUAL See page –36. VALUES MODEL MESSAGE See page –36. CALIBRATION END OF PAGE MESSAGE 6.1.2 Description Measured values, maintenance and fault analysis information are accessed in Actual Value mode.
  • Page 254 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES A1 Status 6.2.1 Network Status Ethernet Connection PATH: ACTUAL VALUES A1 STATUS NETWORK STATUS Range: see description below NETWORK Ethernet Lnk Con STATUS This actual value appears when the relay is ordered with the Ethernet (T) option. actual value message indicates the status of the Ethernet link, ETHERNET STATUS connection, and diagnostic via three indicators.
  • Page 255 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.2.2 Motor Status PATH: ACTUAL VALUES A1 STATUS MOTOR STATUS Range: Tripped, Stopped, Starting, MOTOR MOTOR STATUS: Running, Overload STATUS Stopped Range: 0 to 100% MOTOR THERMAL MESSAGE CAPACITY USED: 0% Range: 0 to 10000 sec., Never ESTIMATED TRIP MESSAGE...

  • Page 256: Power Factor

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Range: –50 to 250°C or –58 to 482°F. HOTTEST BEARING MESSAGE Seen only if at least 1 RTD is set as Bearing Range: –50 to 250°C or –58 to 482°F. HOTTEST OTHER RTD MESSAGE Seen only if at least 1 RTD is set...
  • Page 257 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.2.4 Alarm Status PATH: ACTUAL VALUES A1 STATUS ALARM STATUS Range: N/A. Message seen when no ALARM NO ALARMS alarms are active STATUS Range: Active, Latched REMOTE ALARM MESSAGE STATUS: Active Range: Active, Latched PRESSURE SWITCH...

  • Page 258: Emergency Restart

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Range: –50000 to +50000 kvar REACTIVE POWER MESSAGE ALARM: +2000 kvar Range: –50000 to +50000 kW UNDERPOWER MESSAGE ALARM: 200 kW Range: 1 to 10000 Trips TRIP COUNTER MESSAGE ALARM: 25 Trips Range: Trip Coil Super, Welded STARTER FAILURE:...
  • Page 259 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.2.5 Start Blocks PATH: ACTUAL VALUES A1 STATUS START BLOCKS Range: N/A. Message seen when no START NO START BLOCKS start blocks are active BLOCKS ACTIVE Note: Message seen only after an OVERLOAD LOCKOUT MESSAGE overload trip...

  • Page 260: Real Time Clock

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Range: Open, Shorted ASSIGNABLE DIGI- MESSAGE Range: Coil, No Coil TRIP COIL MESSAGE SUPERVISION: No The messages shown here may be used to monitor Digital Input status. This may be useful during relay testing or during installation.

  • Page 261: A2 Metering Data

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES A2 Metering Data 6.3.1 Current Metering PATH: ACTUAL VALUES A2 METERING DATA CURRENT METERING Range: 0 to 100000 A CURRENT Amps METERING Range: 0 to 100000 A AVERAGE PHASE MESSAGE CURRENT: 0 Amps Range: 0.00 to 20.00 x FLA...
  • Page 262 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.3.2 Temperature PATH: ACTUAL VALUES A2 METERING DATA TEMPERATURE Range: –50 to 250°C, No RTD (open), --- HOTTEST STATOR - (shorted) TEMPERATURE RTD#1: 40°C Range: –50 to 250°C, No RTD (open), --- RTD #1 MESSAGE - (shorted)

  • Page 263: Voltage Metering

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.3.3 Voltage Metering PATH: ACTUAL VALUES A2 METERING DATA VOLTAGE METERING Range: 0 to 20000 V. Not seen if VT Vab: Vbc: Connection is set as None VOLTAGE Vca: Volts METERING Range: 0 to 20000 V.
  • Page 264 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.3.5 Power Metering PATH: ACTUAL VALUES A2 METERING DATA POWER METERING Range: 0.01 to 0.99 Lead or Lag, 0.00, 1.00 POWER POWER FACTOR: 0.00 METERING Range: 0 to ±99999 kW REAL POWER: MESSAGE 0 kW...

  • Page 265: Demand Metering

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.3.6 Demand Metering PATH: ACTUAL VALUES A2 METERING DATA DEMAND METERING Range: 0 to 100000 A DEMAND CURRENT DEMAND: 0 Amps METERING Range: 0 to 99999 kW REAL POWER MESSAGE DEMAND: 0 kW Range: 0 to 99999 kvar...
  • Page 266 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Range: –5100 to 4900%. Seen only if ANALOG 3-4 MESSAGE Analog In Diff 3-4 set to %Diff 0 Percent Range: –100000 to 100000. Seen only ANALOG 3-4 MESSAGE if Analog In Diff 3-4 is Abs Diff 0 Units The values for analog inputs are shown here.

  • Page 267: Voltage Sensing

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES FIGURE 6–1: Vector display in EnerVista 469 Setup IEEE conventions define vectors in terms of relative angles as shown below: PER IEEE CONVENTIONS Source PARAMETERS AS SEEN Phase Rotation BY THE 469 RELAY Voltage WATTS = Positive...
  • Page 268 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Positive Angle Direction 270° Lag 315° Lag 225° Lag 180° Lag 0° 469 Phase Angle Reference 135° Lag 45° Lag 90° Lag 806561A2.CDR FIGURE 6–3: Phase Angle Measurement Convention The EnerVista 469 Setup software follows this convention and displays vectors accordingly.
  • Page 269 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES • Extremely high unbalance levels (CTs), • Erroneous power readings (CTs and VTs), • Phase reversal trips (VTs). To correct wiring, simply start the motor and record the phasors. The correct phasors can be determined using the tables along with recorded phasors, system rotation, VT connection type, and motor power factor.
  • Page 270 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES The following phasor diagram presents, in graphic form, the relationship between system quantities and how they are measured, calculated, and displayed. Note that all angles shown are negative or lagging angles. System Voltages: Phase Rotation VC = –Vbc...
  • Page 271 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Pressing the “View” button displays the following screen: The following phasor diagram illustrates the vector diagram of our example. By definition, power factor is the cosine of the angle between the phase to neutral voltages and the corresponding phase current.
  • Page 272 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Table 6–1: Three-phase Open Delta VT Connection ---- ---- ---- ---- ---- kVAR – – + (=kW) 0.3 pf (72.5°) 0.7 pf 1.00 pf 0.7 pf 0.3 pf (72.5°) Rotation (45°) lag (0°) lag...
  • Page 273 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES When the relay set for the “Wye” VT connection type, voltages are measured at terminals G2 (V ), H1 (V ), and H2 (V ) with respect to G1 (V ).
  • Page 274 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES : “2323 Volts” : “2323 Volts” : “2323 Volts” AVERAGE PHASE VOLTAGE : “60.00 Hz” SYSTEM FREQUENCY In the menu: A2 METERING DATA PHASORS : “95.8% at 0° Lag” VA PHASOR : “95.8% at 120°...
  • Page 275 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Pressing the “View” button displays the following screen: Table 6–2: Three-phase Wye VT Connection 0.3 pf (72.5°) 0.7 pf 1.00 pf 0.7 pf 0.3 pf (72.5°) rotation (45°) lag (0°) lag (45°) lead lead...
  • Page 276 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Table 6–2: Three-phase Wye VT Connection 0.3 pf (72.5°) 0.7 pf 1.00 pf 0.7 pf 0.3 pf (72.5°) rotation (45°) lag (0°) lag (45°) lead lead kVAR – – + (=kW) 6–26 469 MOTOR MANAGEMENT RELAY –...

  • Page 277: A3 Learned Data

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES A3 Learned Data 6.4.1 Motor Starting PATH: ACTUAL VALUES A3 LEARNED DATA MOTOR STARTING Range: 0.0 to 200.0 sec. LEARNED ACCELERA- MOTOR TION TIME: 0.0 s STARTING Range: 0 to 50000 A LEARNED STARTING MESSAGE CURRENT: 0 A...

  • Page 278: Average Motor Load

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6.4.2 Average Motor Load PATH: ACTUAL VALUES A3 LEARNED DATA AVERAGE MOTOR LOAD Range: 0.00 to 20.00 AVERAGE MOTOR AVERAGE LOAD LEARNED: 0.00 x MOTOR LOAD The 469 can learn the average motor load over a period of time. This time is specified by settings S1 469 SETUP PREFERENCES...

  • Page 279: Analog Input Min/Max

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES The values in this menu reflect the RTD names as programmed If no RTDs are programmed , the flash message will THIS FEATURE NOT PROGRAMMED S8 RTD TEMPERATURE appear when an attempt is made to enter this group of messages. 6.4.4 Analog Input Min/Max PATH: ACTUAL VALUES...

  • Page 280: A4 Maintenance

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES A4 Maintenance 6.5.1 Trip Counters PATH: ACTUAL VALUES A4 MAINTENANCE TRIP COUNTERS Range: 0 to 50000 TRIP TOTAL NUMBER OF TRIPS: 0 COUNTERS Range: 0 to 50000. Caused by the INCOMPLETE MESSAGE Reduced Voltage Start feature...
  • Page 281 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Range: 0 to 50000 OVERVOLTAGE MESSAGE TRIPS: 0 Range: 0 to 50000 PHASE REVERSAL MESSAGE TRIPS: 0 Range: 0 to 50000 VOLTAGE FREQUENCY MESSAGE TRIPS: 0 Range: 0 to 50000 POWER FACTOR MESSAGE TRIPS: 0...

  • Page 282: Timers

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Range: 0 to 1 000 000 000. Seen if a DIGITAL COUNTER MESSAGE Digital Input is Digital Counter. 0 Units Two of the 469 general counters count the number of motor starts or start attempts and the number of Emergency Restarts performed to start a given motor over time.

  • Page 283: A5 Event Recorder

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES A5 Event Recorder 6.6.1 Event 01 to Event 256 PATH: ACTUAL VALUES A5 EVENT RECORDER EVENT 01(256) Range: hour:minutes:seconds EVENT TIME OF EVENT 01: 00:00:00.0 <Cause> Range: month day, year DATE OF EVENT 01: MESSAGE Jan.
  • Page 284 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Range: 0.01 to 0.99 Lead or Lag, 0.00, POWER FACTOR MESSAGE 1.00 Not seen if VT Connection EVENT01: 0.00 is set as None. Range: 0 to 999999.9. Seen only if TORQUE MESSAGE Torque Metering is Enabled...
  • Page 285 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Table 6–3: Cause of Events (Sheet 2 of 2) Underpower Trip Undervoltage Trip Vibration Sw.Trip Volt. Frequency Trip ALARMS (OPTIONAL EVENTS) Analog Diff 1-2 Alarm Analog Diff 3-4 Alarm Analog I/P 1 Alarm Analog I/P 2 Alarm Analog I/P 3 Alarm...

  • Page 286: A6 Product Info

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES A6 Product Info 6.7.1 469 Model Information PATH: ACTUAL VALUES A6 PRODUCT INFO 469 MODEL INFORMATION Range: Displays the relay order code ORDER CODE: and installed options. MODEL 469-P5-HI-A20-E INFORMATION Range: Displays the serial number of 469 SERIAL NO:...

  • Page 287: Diagnostics

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES Diagnostics 6.8.1 Diagnostic Messages Some actual value messages are helpful in diagnosing the cause of Trips, Alarms, or Start Blocks. The 469 automatically defaults to the most important message. The hierarchy is Trip and PreTrip messages, Alarm, and lastly, Start Block Lockout.

  • Page 288: Flash Messages

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES START BLOCK OVERLOAD LOCKOUT LOCKOUTS: BLOCK: 25 min When the has been pressed, the hot RTD condition is no longer present, and the RESET lockout time has expired, the display will revert back to the normal Default Messages. 6.8.2 Flash Messages Flash messages are warning, error, or general information messages that are temporarily...

  • Page 289: Clear Data

    All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES forgotten, contact the factory with the encrypted access code. See Passcode on page 5–8 for passcode features. • ACCESS DENIED, SHORT ACCESS SWITCH: In order to store any settings values, the access switch must be shorted.
  • Page 290 • INVALID SERVICE CODE ENTERED: This message appears if an invalid code is entered S13 469 TESTING GE MULTILIN USE ONLY • KEY PRESSED HERE IS INVALID: Under certain situations, certain keys have no function (e.g. any number key while viewing Actual Values). If a key is pressed where it should have no function, this message will appear.
  • Page 291 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES settings value is . This message also appears Restricted PASSCODE SETTINGS ACCESS anytime that settings access is permitted and the access jumper is removed. • THIS FEATURE NOT PROGRAMMED: If an attempt is made to enter an actual value message subgroup, when the settings are not configured for that feature, this message will appear.
  • Page 292 All manuals and user guides at all-guides.com CHAPTER 6: ACTUAL VALUES 6–42 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 293: Test Setup

    All manuals and user guides at all-guides.com Digital Energy Multilin 469 Motor Management Relay Chapter 7: Testing Testing Overview 7.1.1 Test Setup The purpose of this testing description is to demonstrate the procedures necessary to perform a complete functional test of all the 469 hardware while also testing firmware/ hardware interaction in the process.
  • Page 294 All manuals and user guides at all-guides.com CHAPTER 7: TESTING FIGURE 7–1: Secondary Injection Test Setup 7–2 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...

  • Page 295: Hardware Functional Testing

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING Hardware Functional Testing 7.2.1 Phase Current Accuracy Test The 469 specification for phase current accuracy is ±0.5% of 2 × CT when the injected current is less than 2 × CT. Perform the steps below to verify accuracy. Alter the following settings: “1000 A”...

  • Page 296: Ground And Differential Accuracy Test

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING APPLIED EXPECTED MEASURED MEASURED MEASURED LINE-NEUTRAL VOLTAGE VOLTAGE A-N VOLTAGE B-N VOLTAGE C-N VOLTAGE READING 200 V 2000 V 270 V 2700 V 7.2.3 Ground and Differential Accuracy Test The 469 specification for differential current and 1 A/5 A ground current input accuracy is ±0.5% of 1 ×...

  • Page 297: Ge Multilin 50:0.025 Ground Accuracy Test

    1000 A 7.2.4 GE Multilin 50:0.025 Ground Accuracy Test The 469 specification for GE Multilin 50:0.025 ground current input accuracy is ±0.5% of CT rated primary (25 A). Perform the steps below to verify accuracy. Alter the following settings: “50:0.025”...
  • Page 298 All manuals and user guides at all-guides.com CHAPTER 7: TESTING A2 METERING DATA TEMPERATURE Table 7–1: 100 Ω PLATINUM TEST APPLIED EXPECTED RTD MEASURED RTD TEMPERATURE RESISTANC TEMPERATURE SELECT ONE: ____(°C) ____(°F) E 100 Ω READING PLATINUM °Celsius °Fahrenheit 80.31 Ω –50°C –58°F 100.00 Ω...

  • Page 299: Digital Inputs And Trip Coil Supervision

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING Table 7–3: 100 Ω NICKEL TEST APPLIED EXPECTED RTD MEASURED RTD TEMPERATURE RESISTANCE TEMPERATURE SELECT ONE: ____(°C) ____(°F) 100 Ω READING NICKEL °Celsius °Fahrenheit 167.20 Ω 100°C 212°F 207.45 Ω 150°C 302°F 252.88 Ω...

  • Page 300: Analog Inputs And Outputs

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING A1 STATUS DIGITAL INPUTS INPUT EXPECTED PASS / EXPECTED PASS / STATUS (SWITCH FAIL STATUS (SWITCH FAIL OPEN) CLOSED) ACCESS Open Shorted TEST Open Shorted STARTER STATUS Open Shorted EMERGENCY RESTART Open Shorted REMOTE RESET...

  • Page 301: Analog Output

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING A2 METERING DATA ANALOG INPUTS ANALOG EXPECTE MEASURED EXPECTED MEASURED ANALOG OUTPUT AMMETER READING ANALOG INPUT READING FORCE AMMETE (mA) INPUT (units) VALUE READING READING 4 mA 0 mA 8 mA 250 mA 12 mA 500 mA...
  • Page 302 All manuals and user guides at all-guides.com CHAPTER 7: TESTING 7.2.8 Output Relays To verify the functionality of the output relays, perform the following steps: Using the settings: “1 Trip” S13 TESTING TEST OUTPUT RELAYS FORCE OPERATION OF RELAYS: Select and store values as per the table below, verifying operation FORCE EXPECTED MEASUREMENT ACTUAL MEASUREMENT...

  • Page 303: Additional Functional Testing

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING Additional Functional Testing 7.3.1 Overload Curve Test The 469 specification for overload curve timing accuracy is ±100 ms or ±2% of time to trip. Pickup accuracy is as per the current inputs (±0.5% of 2 × CT when the injected current is less than 2 ×...

  • Page 304: Unbalance Test

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING “1000” S2 SYSTEM SETUP CURRENT SENSING PHASE CT PRIMARY: “Wye” S2 SYSTEM SETUP VOLTAGE SENSING VT CONNECTION TYPE: “10.00:1” S2 SYSTEM SETUP VOLTAGE SENSING VOLTAGE TRANSFORMER RATIO: Inject current and apply voltage as per the table below. Verify accuracy of the measured values.

  • Page 305: Voltage Phase Reversal Test

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING -- - I ∠ --- - ------------------------------------------ - where a 1 120° j0.886 (EQ 7.2) – -- - I Given the values in the figure above, we have: 780 0° ∠...

  • Page 306: Short Circuit Test

    All manuals and user guides at all-guides.com CHAPTER 7: TESTING “Wye” or “Delta” S2 SYSTEM SETUP VOLTAGE SENSING VT CONNECTION TYPE: “ABC” S2 SYSTEM SETUP POWER SYSTEM SYSTEM PHASE SEQUENCE: “Latched” S9 VOLTAGE ELEMENTS PHASE REVERSAL PHASE REVERSAL TRIP: “Trip” S9 VOLTAGE ELEMENTS PHASE REVERSAL ASSIGN TRIP RELAYS:...

  • Page 307: Two-Phase Ct Configuration

    All manuals and user guides at all-guides.com Digital Energy Multilin 469 Motor Management Relay Appendix Appendix Two-Phase CT Configuration A.1.1 Description This appendix illustrates how two CTs may be used to sense three phase currents. The proper configuration for the use of two CTs rather than three to detect phase current is shown.
  • Page 308 All manuals and user guides at all-guides.com A: APPENDIX :COM :COM :COM 808700A1.CDR In the two CT configuration, the currents will sum vectorially at the common point of the two CTs. The diagram illustrates the two possible configurations. If one phase is reading high by a factor of 1.73 on a system that is known to be balanced, simply reverse the polarity of the leads at one of the two phase CTs (taking care that the CTs are still tied to ground at some point).
  • Page 309 All manuals and user guides at all-guides.com A: APPENDIX Once again, if the polarity of one of the phases is out by 180°, the magnitude of the resulting vector on a balanced system will be out by a factor of 1.73. On a three wire supply, this configuration will always work and unbalance will be detected properly.

  • Page 310: Cool Time Constants

    All manuals and user guides at all-guides.com A: APPENDIX Cool Time Constants A.2.1 Selection of Cool Time Constants Thermal limits are not a black and white science and there is some art to setting a protective relay thermal model. The definition of thermal limits mean different things to different manufacturers, and information is often not available.
  • Page 311 All manuals and user guides at all-guides.com A: APPENDIX • Programming the settings to “On” makes a restart possible as soon START INHIBIT as 62.5% (50 × 1.25) thermal capacity is available. • After two (2) cold or one (1) hot start, the thermal capacity used will approach 100%.

  • Page 312: Current Transformers

    A.3.1 Ground Fault CTs for 50:0.025 A CT CTs that are specially designed to match the ground fault input of GE Multilin motor protection relays should be used to ensure correct performance. These CTs have a 50:0.025A (2000:1 ratio) and can sense low leakage currents over the relay setting range with minimum error.
  • Page 313 All manuals and user guides at all-guides.com A: APPENDIX HGF5C 808841A1 HGF8 808842A1 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL A–7...

  • Page 314: Ground Fault Cts For 5 A Secondary Ct

    All manuals and user guides at all-guides.com A: APPENDIX A.3.2 Ground Fault CTs for 5 A Secondary CT For low resistance or solidly grounded systems, a 5 A secondary CT should be used. Two sizes are available with 5½” or 13” × 16” windows. Various Primary amp CTs can be chosen (50 to 250).
  • Page 315 All manuals and user guides at all-guides.com A: APPENDIX 808712A1.CDR 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL A–9...

  • Page 316: Eu Declaration Of Conformity

    All manuals and user guides at all-guides.com A: APPENDIX EU Declaration of Conformity A.4.1 EU Declaration of Conformity (8 '(&/$5$7,21 2) &21)250,7< $SSOLFDEOH &RXQFLO 'LUHFWLYH V ((& 7KH /RZ 9ROWDJH 'LUHFWLYH ((& 7KH (0& 'LUHFWLYH 6WDQGDUGV WR :KLFK &RQIRUPLW\ LV 'HFODUHG ,(&...

  • Page 317: Change Notes

    All manuals and user guides at all-guides.com A: APPENDIX Change Notes A.5.1 Revision History MANUAL P/N REVISION RELEASE DATE 1601-0122-A1 4.0x February 09, 2004 1601-0122-A2 4.0x May 21, 2004 1601-0122-A3 4.0x May 27, 2005 1601-0122-A4 5.0x July 12, 2006 1601-0122-A5 5.0x February 9, 2007 1601-0122-A6...
  • Page 318 All manuals and user guides at all-guides.com A: APPENDIX Table A–3: Major Updates for 469 Manual Revision A6 SECT SECT CHANGE DESCRIPTION (A5) (A6) Title Title Update Manual part number to 1601-0122-A6 2.1.3 2.1.3 Update Change DC power supply range Table A–4: Major Updates for 469 Manual Revision A5 CHANGE DESCRIPTION...

  • Page 319: Ge Multilin Warranty

    In the event of a failure covered by warranty, GE Multilin will undertake to repair or replace the device providing the warrantor determined that it is defective and it is returned with all transportation charges prepaid to an authorized service centre or the factory.
  • Page 320 All manuals and user guides at all-guides.com A: APPENDIX A–14 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL...
  • Page 321 All manuals and user guides at all-guides.com CHAPTER I: Index Numerics 0 to 1mA ANALOG INPUT ..............3-19 5-91 5-94 0 to 20mA ANALOG INPUT ..................5-94 1 TRIP RELAY description ........................3-23 operating .......................... 5-35 reset mode ........................5-34 2 AUXILIARY RELAY description ........................
  • Page 322 All manuals and user guides at all-guides.com CHAPTER I: A2 METERED DATA ......................6-11 A3 LEARNED DATA ......................6-27 A4 MAINTENANCE ......................6-30 A5 EVENT RECORDER ...................... 6-33 A6 PRODUCT INFO ......................6-36 ALARM RELAY see 4 ALARM RELAY ALARM STATUS ......................
  • Page 323 All manuals and user guides at all-guides.com CHAPTER I: BAUD RATE setpoints ..................... 5-10 5-11 5-12 specifications ........................2-13 BEARING RTD ......................5-70 5-73 BEARING RTD TRIPS ....................... 6-30 BLOCK START ........................5-7 CALIBRATION DATE ......................6-36 CAPTURE TRACE ......................5-32 CASE .............................
  • Page 324 All manuals and user guides at all-guides.com CHAPTER I: setpoints ..........................5-62 specifications ........................2-8 trip counter ........................6-30 CUSTOM OVERLOAD CURVES description ........................5-43 example ..........................5-45 voltage dependent overload ................5-50 5-51 CUTOUT PANELS ....................... 3-4 DATE ....................... 5-13 6-10 6-39 DEFAULT MESSAGES...
  • Page 325 All manuals and user guides at all-guides.com CHAPTER I: pressure switch alarm ....................5-28 pressure switch trip ....................... 5-28 remote alarm ........................5-26 remote trip ........................5-26 simulate fault ........................5-33 simulate pre-fault ......................5-33 simulate pre-fault...fault ....................5-33 speed switch trip ......................5-27 tachometer ........................
  • Page 326 All manuals and user guides at all-guides.com CHAPTER I: FORCE RELAY OPERATION ..................5-101 FREQUENCY event record ........................6-33 pre-trip system frequency ....................6-6 setpoints ..........................5-79 specifications ........................2-8 system frequency ......................5-19 trip counter ........................6-31 FRONT PANEL using .............................
  • Page 327 All manuals and user guides at all-guides.com CHAPTER I: analog current ........................2-6 differential current ......................3-16 differential phase current ....................2-6 digital ........................2-6 3-18 ground current ....................... 2-6 3-13 phase current ......................2-6 3-13 voltage ........................2-7 3-17 INSERTION ...........................
  • Page 328 All manuals and user guides at all-guides.com CHAPTER I: LOSS OF LOAD ........................4-3 MAXIMUM RTD TEMPERATURE ............... 5-15 5-24 MECHANICAL INSTALLATION ..................3-1 MECHANICAL JAM setpoints ..........................5-60 specifications ........................2-9 trip counter ........................6-30 MECHANICAL JAM TRIPS ....................6-30 MESSAGE SCRATCHPAD ....................
  • Page 329 All manuals and user guides at all-guides.com CHAPTER I: NAMEPLATE VOLTAGE ....................5-19 NEGATIVE-SEQUENCE CURRENT ............5-54 5-62 6-11 NEMA DERATING CURVE ....................5-55 NOMINAL SYSTEM FREQUENCY ................5-19 NUMBER OF EMERGENCY RESTARTS ..............6-31 NUMBER OF MOTOR STARTS ..................6-31 NUMERICAL SETPOINTS ....................
  • Page 330 All manuals and user guides at all-guides.com CHAPTER I: standard multipliers ....................... 5-40 voltage dependent ........... 5-46 5-50 5-51 5-52 5-53 5-54 OVERLOAD PICKUP ......................5-38 OVERLOAD TRIPS ......................6-30 OVERREACH FILTER ......................5-60 OVERTORQUE ........................5-85 OVERTORQUE SETUP ..................... 5-85 OVERVIEW ........................
  • Page 331 All manuals and user guides at all-guides.com CHAPTER I: POWER FACTOR setpoints ........................... 5-81 specifications ........................2-12 trip counter ........................6-31 POWER MEASUREMENT CONVENTIONS ..............5-80 POWER MEASUREMENT TEST ..................7-11 POWER METERING ......................6-14 POWER SYSTEM ....................... 5-19 PRE-FAULT SETUP ......................
  • Page 332 All manuals and user guides at all-guides.com CHAPTER I: REMOVING THE 469 FROM THE CASE ..............3-6 RESET ............................. 5-6 RESET MOTOR INFORMATION ..................5-16 RESET STARTER INFORMATION ................. 5-16 RESET, REMOTE ........................ 5-25 RESETTING THE 469 ....................... 5-34 RESIDUAL ...........................
  • Page 333 All manuals and user guides at all-guides.com CHAPTER I: RTD BIAS curve ............................5-58 description ........................5-57 enabling ..........................5-38 setpoints ........................... 5-38 RTD LEAD COMPENSATION ................3-21 3-22 RTD MAXIMUMS ....................... 6-28 RTD SHORT/LOW TEMP ....................5-75 RTD TYPES .......................... 5-70 RTDs 1 to 6 ........................
  • Page 334 All manuals and user guides at all-guides.com CHAPTER I: SETPOINT ACCESS flash messages ........................ 6-40 setpoints ..........................5-8 SETPOINT ACCESS SWITCH ..................5-24 SETPOINT ENTRY ....................... 4-6 SETPOINT GROUPS see individual groups S1 through S12 SETPOINT MESSAGE MAP ....................5-1 SETPOINTS changing ..........................
  • Page 335 All manuals and user guides at all-guides.com CHAPTER I: see 5 START BLOCK RELAY START BLOCKS ........................6-9 START INHIBIT ........................5-66 STARTER failure ..........................5-86 information ........................5-16 operations ......................5-24 6-31 status ..........................5-25 status switch ........................5-22 STARTING CURRENT ...................
  • Page 336 All manuals and user guides at all-guides.com CHAPTER I: voltage input accuracy....................7-3 voltage phase reversal ....................7-13 TEXT SETPOINTS ......................1-15 THERMAL CAPACITY ALARM ................5-38 THERMAL CAPACITY USED ................. 5-66 actual value ........................6-5 algorithm ........................... 5-39 learned ..........................6-27 margin (for Start Inhibit) ....................
  • Page 337 All manuals and user guides at all-guides.com CHAPTER I: description ........................3-12 wiring diagram ........................3-11 UNBALANCE actual values ........................6-11 event record ........................6-33 pre-trip value ........................6-5 setpoints ........................... 5-62 specifications ........................2-8 testing ..........................7-12 three-phase example ..................... 7-12 trip counter ........................
  • Page 338 All manuals and user guides at all-guides.com CHAPTER I: VOLTAGE SENSING setpoints ..........................5-19 VOLTAGE TRANSFORMER see VTs VOLTAGE TRANSFORMER RATIO ................5-19 VT CONNECTION TYPE ....................5-19 VT RATIO ..........................5-19 3-phase open delta ......................6-21 3-phase wye ........................6-25 connection type.......................