GE 745 TRANSFORMER MANAGEMENT RELAY Manuals

Manuals and User Guides for GE 745 TRANSFORMER MANAGEMENT RELAY. We have 2 GE 745 TRANSFORMER MANAGEMENT RELAY manuals available for free PDF download: Instruction Manual

GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual

GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual (408 pages)

Brand: GE | Category: Relays | Size: 6.67 MB

Table of Contents

Table of Contents
3
1 Product Overview

13
- Introduction
  13
  - Description
    13
  - Summary of Protection Features
    14
  - Order Codes
    16
- Technical Specifications
  17
  - Applicability
    17
  - Inputs
    17
  - Protection Elements
    18
  - Outputs
    21
2 Getting Started

23
- Using the Front Panel Display
  23
  - Maneuvering
    23
  - S1 745 Setup
    24
- Changing Setpoints
  25
  - Description
    25
  - Installing the Setpoint Access Jumper
    25
  - Numerical Setpoints
    25
  - S2 System Setup
    25
  - Enumeration Setpoints
    26
  - Text Setpoints
    27
- Security
  28
  - Installation
    28
  - Passcode Security Setup
    28
    
    Changing the Passcode
    28
    
    Disabling/Enabling Passcode Security
    29
3 Installation

31
- Drawout Case
  31
  - Case Description
    31
  - Panel Cutout
    31
  - Case Mounting
    32
  - Unit Withdrawal and Insertion
    32
    
    Relay Withdrawal
    32
    
    Drawout Seal
    33
    
    Relay Insertion
    33
- Typical Wiring
  34
  - Description
    34
  - Rear Terminal Layout
    34
  - Rear Terminal Assignments
    35
  - Typical Wiring Diagrams
    36
  - Phase Sequence and Transformer Polarity
    38
  - Ac Current Transformer Inputs
    38
  - Ac Voltage Input
    38
  - Control Power
    39
  - Logic Inputs
    39
  - Analog Input
    40
  - Tap Position Input
    40
  - Rtd Driver/Sensor
    40
  - Output Relays
    41
  - Solid State Trip Output
    41
  - Analog Outputs
    41
  - S5 Outputs
    41
  - Rs485 / Rs422 Communication Ports
    42
  - Rs232 Front Panel Program Port
    43
  - Irig-B
    44
  - Dielectric Strength Testing
    44
- Front Panel
  45
  - Description
    45
  - Display
    45
  - Status Indicators
    45
    
    In Service
    45
    
    Local
    45
    
    Self-Test Error
    45
    
    Test Mode
    45
- Display
  46
  - Message
    47
  - System Status Indicators
    47
    
    D DIFFERENTIAL BLOCKED
    47
    
    Load-Limit Reduced
    47
    
    Setpoint Group 1
    47
    
    Setpoint Group 2
    47
    
    Setpoint Group 3
    47
    
    Setpoint Group 4
    47
    
    Transformer De-Energized
    47
    
    Transformer Overload
    47
  - Condition Indicators
    48
    
    Alarm
    48
    
    Ground
    48
    
    Phase a (B/C)
    48
    
    Pickup
    48
  - Program Port
    48
- Keypad
  49
  - Setpoint Key
    49
  - Actual Key
    49
  - Escape Key
    49
  - Enter Key
    49
  - Message Up/Down Key
    49
  - Value Up/Down Key
    49
  - Number Keys
    50
  - Help Key
    50
  - Reset Key
    50
  - Next Key
    50
5 Setpoints

51
- Overview
  51
  - Setpoint Groups
    51
  - Flexcurves
    51
  - Setpoint Entry
    52
  - Setpoint Write Access
    52
- Auto-Configuration
  53
- S1 745 Setup
  74
  - Description
    74
  - Passcode
    74
  - Preferences
    75
  - Communications
    76
  - Dnp Communications
    77
  - Resetting
    78
  - Clock
    78
  - Default Messages
    79
    
    Adding Default Messages
    79
    
    Removing Default Messages
    79
  - Scratchpad
    80
  - Installation
    80
  - Options
    81
  - Upgrade Options
    81
- S2 System Setup
  83
  - Description
    83
  - Transformer
    83
  - Winding 1 (2/3)
    85
  - Onload Tap Changer
    86
  - Harmonics
    87
  - Flexcurves
    87
  - Voltage Input
    88
  - Ambient Temperature
    89
  - Analog Input
    90
  - Demand Metering
    91
  - Analog Outputs
    92
- Setpoints S3 Logic Inputs
  93
  - Description
    93
  - Logic Inputs
    93
  - Virtual Inputs
    94
- S4 Elements
  95
  - Description
    95
  - Introduction to Elements
    95
  - Setpoint Group
    96
  - Differential
    96
    
    Percent Differential
    98
    
    Harmonic Inhibit
    99
    
    Energization Inhibit
    100
    
    Energization Sensing
    100
    
    E 5TH HARMONIC INHIBIT
    101
  - Instantaneous Differential
    102
  - Phase Overcurrent
    102
    
    Winding 1 (2/3) Phase Time Overcurrent
    102
    
    B WINDING 1 (2/3) PHASE INSTANTANEOUS OVERCURRENT 1
    104
  - Neutral Overcurrent
    105
    
    Winding 1 (2/3) Neutral Time Overcurrent
    105
    
    B WINDING 1 (2/3) NEUTRAL INSTANTANEOUS OVERCURRENT 1
    106
  - Ground Overcurrent
    107
    
    Winding 1 (2/3) Ground Time Overcurrent
    107
    
    Winding 1 (2/3) Ground Instantaneous Overcurrent 1
    108
    
    Winding 1 (2/3) Ground Instantaneous Overcurrent 2
    108
  - Restricted Ground (Differential Ground)
    109
    
    Winding 1 (2/3) Restricted Ground Fault
    109
    
    B RESTRICTED GROUND FAULT SETTINGS EXAMPLE
    111
    
    C SETPOINTS
    112
  - Negative Sequence Overcurrent
    113
    
    Winding 1 (2/3) Negative Sequence Time Overcurrent
    113
    
    Winding 1 (2/3) Neg. Seq. Instantaneous Overcurrent
    114
  - Frequency
    115
    
    Underfrequency 1 (2)
    115
    
    Frequency Decay
    116
    
    Overfrequency
    117
  - Overexcitation
    118
    
    A 5TH HARMONIC LEVEL
    118
    
    Volts-Per-Hertz 1 (2)
    119
  - Harmonics
    120
    
    Winding 1 (2/3) Thd Level
    120
    
    Winding 1 (2/3) Harmonic Derating
    121
  - Insulation Aging / Loss of Life Feature
    122
    
    Hottest-Spot Limit
    123
    
    Insulation Aging Setpoints
    123
  - Aging Factor Limit
    124
  - Loss of Life Limit
    125
  - Analog Input
    126
  - Current Demand
    127
  - Transformer Overload
    128
  - Tap Changer Failure
    129
- S5 Outputs
  130
  - Description
    130
  - Introduction to Flexlogic
    130
  - Flexlogic™ Rules
    132
  - Output Relays
    134
  - Trace Memory
    135
  - Virtual Outputs
    135
  - Timers
    136
- S6 Testing
  137
  - Description
    137
  - Output Relays
    137
  - Analog Outputs
    137
  - Simulation
    138
  - Prefault Values
    139
  - Fault Values
    140
  - Factory Service
    140
- Time Overcurrent Curves 5.9.1 Note
  141
  - Ansi Curves
    141
  - Definite Time Curve
    143
  - Iec Curves
    143
  - Iac Curves
    145
- Inverse Volts-Per-Hertz Curves
  147
  - Inverse Curve 1
    147
  - Inverse Curve 2
    148
  - Inverse Curve 3
    149
6 Actual Values

151
- Overview
  151
  - Description
    151
  - Actual Values Organization
    151
- A1 Status
  152
  - Description
    152
  - Date and Time
    152
  - Logic Inputs
    152
  - Virtual Inputs
    152
  - Output Relays
    153
  - Virtual Outputs
    153
  - Self-Test Errors
    153
- A2 Metering
  154
  - Description
    154
  - Current
    154
    
    Winding 1/2/3 Currents
    154
    
    Negative Sequence Currents
    155
    
    Positive Sequence Currents
    155
    
    Zero Sequence Currents
    155
    
    Differential Current
    156
    
    Ground Differential Current
    156
    
    Restraint Current
    156
  - Harmonic Content
    157
    
    Harmonic Sub-Components
    157
    
    Total Harmonic Distortion (Thd)
    157
    
    Harmonic Derating Factor
    158
  - Frequency
    158
  - Tap Changer
    158
  - Voltage
    159
  - Demand
    159
    
    Demand Data Clear
    159
    
    Current Demand
    160
  - Ambient Temperature
    160
  - Loss of Life
    160
  - Analog Input
    161
  - Power
    161
  - Energy
    162
    
    Energy Data Clear
    162
    
    W1/W2/W3 Energy
    162
- A3 Event Recorder
  163
  - Description
    163
  - Event Data Reset
    163
  - Event Records
    163
- A4 Product Info
  167
  - Description
    167
  - Technical Support
    167
  - Revision Codes
    167
  - Calibration
    168
- Target Messages
  169
  - Description
    169
- Self-Test Errors
  171
  - Description
    171
  - Major Self-Test Errors
    171
  - Minor Self-Test Errors
    171
- Flash Messages
  173
  - Description
    173
7 Scheme Logic

175
- Introduction
  175
  - Description
    175
  - Setpoints
    175
  - Measurement Units
    175
  - Time Delays
    175
  - Led Indicators
    175
  - Logic
    175
- Block Diagrams
  176
  - Differential Scheme Logic
    176
  - Overcurrent Scheme Logic
    182
  - Frequency Logic
    194
8 Communications

211
- Overview
  211
  - Protocols
    211
  - Physical Layer
    211
- Modbus Protocol
  212
  - Description
    212
  - Ge Power Management Modbus Protocol
    212
  - Electrical Interface
    212
  - Data Frame Format and Rate
    212
  - Data Packet Format
    213
  - Algorithm
    214
  - Message Timing
    214
  - Supported Function Codes
    215
  - Function Code 03H/04H: Read Actual Values/Setpoints
    216
  - Function Code 05H: Execute Operation
    217
  - Function Code 06H: Store Single Setpoint
    218
  - Function Code 10H: Store Multiple Setpoints
    219
  - Exception Responses
    220
  - Reading the Event Recorder
    221
  - Reading Trace Memory
    221
  - Accessing Data Via the User Map
    222
  - Function Code Substitutions
    225
    
    Function Code 06H Substitution
    226
  - Memory Map Organization
    226
- Modbus Memory Map
  227
  - Memory Map Data Formats
    284
- Dnp Communications
  302
  - Device Profile Document
    302
  - Implemenation Table
    304
- Point Lists
  306
  - Point List Tables
    306
9 Pc Software

311
- Overview
  311
  - Description
    311
  - Hardware & Software Requirements
    312
  - Menu Summary
    312
- Toolbar
  313
- Pc Installation
  315
- Startup & Communications Configuration
  316
- Saving Setpoints to a File
  317
- Firmware Upgrades
  318
- Loading Setpoints from a File
  319
- Viewing Actual Values
  321
- Introduction
  323
- Safety Precautions
  324
- Test Setup
  325
  - Description
    326
  - Dielectric Strength Testing
    327
    
    Logic Inputs
    328
    
    Description
    330
    
    Voltage Input
    331
  - B EFFECTS of ZERO-SEQUENCE COMPONENT REMOVAL
    332
- Ambient Temperature Input
  333
  - C AMBIENT TEMPERATURE by MONTHLY AVERAGES
    334
  - Analog Outputs
    335
- Warning
  336
  - B VERIFICATION of LOCAL RESET MODE
    337
  - E BASIC OPERATING TIME
    338
  - G SLOPE KNEEPOINT
    339
  - H 2Nd HARMONIC RESTRAINT
    340
    
    J ENERGIZATION DETECTION SCHEME
    341
    
    K TARGET, OUTPUT CONTACT, & DISPLAY OPERATION
    342
    
    C TARGET, OUTPUT CONTACT, & DISPLAY OPERATION
    343
  - B PICKUP LEVEL
    344
  - F WINDING #2 and #3 ELEMENTS
    345
  - E WINDING #2 and #3 ELEMENTS
    346
  - C OPERATING TIME
    347
- Neutral Instantaneous Overcurrent 1
  348
- Neutral Instantaneous Overcurrent 2
  349
  - C OPERATING TIME
    350
  - B PICKUP LEVEL
    351
  - Restricted Ground Fault
    352
  - C OPERATING TIME
    353
  - B PICKUP LEVEL
    354
  - D RESET TIME
    355
  - C OPERATING TIME
    356
  - Underfrequency 1
    357
  - C CURRENT INPUT FUNCTION (VOLTAGE INPUT DISABLED)
    358
- Underfrequency 2
  359
  - C CURRENT INPUT FUNCTION (VOLTAGE INPUT DISABLED)
    360
- Frequency Decay Rate 1
  361
  - C CURRENT INPUT FUNCTION (VOLTAGE INPUT DISABLED)
    362
- Volts-Per-Hz 1(2)
  363
- Insulation Aging
  364
- Thd Level Scheme
  365
- Harmonic Derating Function
  366
  - Transformer Overload
    367
  - Description
    368
  - A.1.1 List of Figures
    393
  - A.1.2 List of Tables
    394
  - C.1.1 Warranty
    399

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GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual

GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual (314 pages)

Transformer Protection System

Brand: GE | Category: Power distribution unit | Size: 7.94 MB

Table of Contents

Table of Contents
3
Important Procedures
9
Using the Relay
11
Changing Setpoints
14
T Ext S Etpoints
15
Security
17
S Ecurity
18
Introduction
21
- P Rotection F Eatures
  22
- Order Code
  23
Specifications
25
- P Rotection E Lements
  26
- O Utputs
  29
- M Iscellaneous
  30
Drawout Case
33
- Panel Cutout
  34
- E Thernet Connection
  38
Typical Wiring
39
- W Iring D Iagrams
  42
- Input
  44
- AC Voltage Input
  46
- Control Power
  47
- Analog Input
  48
- Output
  49
- Program Port
  51
Irig-B
52
Hardware Interface
55
- D Isplay
  56
- Program Port
  58
- S Etpoint E Ntry
  59
Enervista Software Interface
62
Connecting Enervista 745 Setup to the Relay
67
- C Onnect F Eature
  69
- Relay
  71
Working with Setpoints and Setpoint Files
73
File
75
Upgrading Relay Firmware
81
Advanced Enervista 745 Setup Features
84
Alues
91
Using Enervista Viewpoint with the 745
94
Overview
97
S Etpoint Entry
100
Auto-Configuration
102
- Technical Support
  229
- Safety Precautions
  240

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