GE Multilin 745 Manuals

GE Multilin 745 Manuals

Manuals and User Guides for GE Multilin 745. We have 1 GE Multilin 745 manual available for free PDF download: Instruction Manual

GE Multilin 745 Instruction Manual

GE Multilin 745 Instruction Manual (242 pages)

Transformer Management Relay

Brand: GE | Category: Relays | Size: 6.35 MB

Table of Contents

Table of Contents
3
Getting Started

9
- Cautions and Warnings
  9
- Inspection Checklist
  9
- Manual Organization
  10
Using the Relay

10
- Menu Navigation
  10
- Panel Keying Example
  12
Changing Setpoints

13
- Introduction
  13
- Using the HELP Key
  13
- Numerical Setpoints
  13
- Enumeration Setpoints
  13
- Text Setpoints
  14
Security

15
- Installation
  15
- Changing the Passcode
  15
Overview

17
Introduction

17
- Description
  17
- Protection Features
  18
- Order Codes
  19
Specifications

20
- Applicability
  20
- Inputs
  20
- Protection Elements
  21
- Outputs
  22
- Miscellaneous
  23
Installation

25
- Case Description
  25
- Panel Cutout
  25
- Case Mounting
  26
- Unit Withdrawal and Insertion
  27
Typical Wiring

29
- Description
  29
- Rear Terminal Layout
  29
- Wiring Diagrams
  31
- Phase Sequence and Transformer Polarity
  33
- AC Voltage Input
  34
- Logic Inputs
  34
- Control Power
  35
- Tap Position Input
  35
- RTD Driver/Sensor
  35
- Output Relays
  36
- Solid State Trip Output
  36
- Analog Outputs
  36
- RS485 / RS422 Communications
  37
- RS232 Front Panel Program Port
  38
- Irig-B
  39
- Dielectric Strength
  39
Interfaces

41
Hardware Interface

41
- Front Panel
  41
- Display
  41
- Leds
  42
- LED Indicators
  42
- Program Port
  43
- Keypad
  43
- Setpoint Entry
  45
- Diagnostic Messages
  46
- Flash Messages
  46
Enervista Software Interface

47
- Overview
  47
- Hardware
  47
Connecting Enervista 745 Setup to the Relay

51
- Connecting to the Relay
  54
Working with Setpoints and Setpoint Files

55
- Engaging a Device
  55
- Entering Setpoints
  55
- File Support
  56
- Using Setpoints Files
  56
Upgrading Relay Firmware

61
- Description
  61
- Saving Setpoints to a File
  61
- Loading New Firmware
  61
Advanced Enervista 745 Setup Features

63
- Triggered Events
  63
- Waveform Capture (Trace Memory)
  63
- Trending (Data Logger)
  65
- Event Recorder
  67
- Modbus User Map
  68
- Viewing Actual Values
  69
Using Enervista Viewpoint with the 745

71
- Plug and Play Example
  71
Setpoints

75
Overview

75
- Setpoint Message Map
  75
- Setpoint Entry
  78
- Setpoint Write Access
  78
Auto-Configuration

79
- Introduction
  79
- Dynamic CT Ratio Mismatch Correction
  79
- Phase Angle Correction
  83
- Zero-Sequence Component Removal
  84
- Transformer Types
  85
- Phase Shifts
  97
S1 745 Setup

98
- Passcode
  98
- Preferences
  98
- Communications
  99
- Resetting
  101
- Clock
  101
- Default Messages
  101
- Scratchpad
  102
- Installation
  103
- Upgrade Options
  103
S2 System Setup

104
- Description
  104
- Transformer
  104
- Windings 1 to 3
  106
- Onload Tap Changer
  107
- Harmonics
  107
- Flexcurves
  108
- Voltage Input
  108
- Ambient Temperature
  109
- Analog Input
  110
- Demand Metering
  110
S3 Logic Inputs

112
- Description
  112
- Logic Inputs 1 to 16
  112
- Virtual Inputs 1 to 16
  113
S4 Elements

113
- Introduction to Elements
  113
- Setpoint Group
  115
- Differential Element
  115
- Instantaneous Differential
  122
- Phase Overcurrent
  123
- Neutral Overcurrent
  130
- Ground Overcurrent
  133
- Restricted Ground
  135
- Negative Sequence Overcurrent
  138
- Frequency
  140
- Overexcitation
  145
- Harmonics
  149
- Insulation Aging
  152
- Analog Input Level
  156
- Current Demand
  157
- Transformer Overload
  158
- Tap Changer Failure
  159
S5 Outputs

160
- Introduction to Flexlogic
  160
- Flexlogic™ Rules
  161
- Output Relays
  162
- Trace Memory
  164
- Virtual Outputs
  165
- Timers
  165
S6 Testing

165
- Description
  165
- Output Relays
  166
- Analog Outputs
  166
- Simulation
  167
- Factory Service
  171
Actual Values

173
- Message Map
  173
A1 Status

173
- Date and Time
  173
- Logic Inputs
  173
- Virtual Inputs
  173
- Output Relays
  176
- Virtual Outputs
  176
- Self-Test Errors
  176
A2 Metering

177
- Current
  177
- Harmonic Content
  180
- Frequency
  182
- Tap Changer
  182
- Voltage
  182
- Demand
  182
- Ambient Temperature
  183
- Loss of Life
  184
- Analog Input
  184
- Power
  184
- Energy
  184
A3 Event Recorder

185
- Event Data Clear
  185
- Event Records
  186
A4 Product Information

188
- Technical Support
  188
- Revision Codes
  189
- Calibration
  189
Target and Flash Messages

189
- Target Messages
  189
- Self-Test Errors
  191
- Flash Messages
  193
Commissioning

195
General

195
- Testing Philosophy
  195
- Test Equipment
  195
Preliminary Work

198
- Description
  198
Logic Inputs and Output Relays

199
- Logic Inputs
  199
- Output Relays
  200
Metering

200
- Description
  200
- Current Inputs
  200
- Voltage Input
  201
- Ambient Temperature Input
  203
- Analog Outputs
  205
- Tap Position
  205
Protection Schemes

205
- Precautions
  205
- Harmonic Restrained Percent Differential
  205
- Neutral Instantaneous Overcurrent 1
  216
- Negative Sequence Time Overcurrent
  222
- Negative Sequence Instantaneous Overcurrent
  224
- Frequency
  227
- Overexcitation
  230
- Insulation Aging
  231
- Tap Monitor Failure
  232
Auxiliary Protection and Monitoring Functions

232
- Transformer Overload
  234
Placing the Relay into Service

234
- Procedure
  234
Appendix

235
- Revision History
  235
EU Declaration of Conformity

236
GE Multilin Warranty

237
- Warranty Statement
  237

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