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GE P643 User Manual

GE P643
592 pages
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GE Energy Connections
Grid Solutions
MiCOM P40 Agile
P642, P643, P645
Technical Manual
T
ransformer Protection IED
Hardware Version: M, P
Software Version: 06
Publication Reference: P64x-TM-EN-1.3

Table of Contents

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GE P643 Specifications

General IconGeneral
BrandGE
ModelP643
CategoryRelays
LanguageEnglish

Summary

Chapter 2 Safety Information

Health and Safety

Emphasizes that personnel must be familiar with safety information and qualified to work on the equipment.

Installation, Commissioning and Servicing

Details hazards and precautions related to installation, commissioning, and servicing the equipment.

Chapter 3 Hardware Design

Front Panel

Describes the components and features of the front panel, including the LCD display, keypad, ports, and LEDs.

Chapter 4 Software Design

Protection and Control Functions

Details the protection and control software, including sample acquisition, frequency tracking, and Fourier signal processing.

Chapter 5 Configuration

Using the HMI Panel

Explains how to use the Human Machine Interface (HMI) for displaying, modifying settings, and viewing status.

Configuring the Data Protocols

Details how to configure various data protocols like Courier, DNP3.0, IEC 60870-5-103, and MODBUS.

Chapter 6 Transformer Differential Protection

Transformer Differential Protection Principles

Explains the current differential principle, through-fault stability, and bias current compensation.

Implementation

Covers defining the power transformer, selecting current inputs, phase correction, and ratio correction.

Chapter 7 Transformer Condition Monitoring

Thermal Overload Protection

Details the thermal model, calculations, and implementation for protecting against overload conditions.

Through Fault Monitoring

Describes the mechanism for monitoring fault currents passing through the transformer based on I2t calculation.

Chapter 8 Restricted Earth Fault Protection

REF Protection Principles

Explains winding-to-core faults and the requirements for different protection arrangements.

Restricted Earth Fault Protection Implementation

Details enabling REF protection and selecting current inputs based on transformer windings.

Chapter 9 Current Protection Functions

Overcurrent Protection Principles

Explains the job of IEDs in protecting against faults and the principles of overcurrent protection.

Phase Overcurrent Protection

Details the implementation of overcurrent elements for backup phase overcurrent protection.

Earth Fault Protection

Details the earth fault elements and their implementation for backup earth fault protection.

Chapter 10 CB Fail Protection

Circuit Breaker Fail Protection

Explains the essential role of circuit breaker operation and the practice of installing CBF protection.

Circuit Breaker Fail Implementation

Details the implementation of CBF settings, including timers and reset mechanisms.

Chapter 11 Voltage Protection Functions

Undervoltage Protection

Details the causes of undervoltage conditions and the implementation of undervoltage protection.

Overvoltage Protection

Explains overvoltage conditions and the implementation of overvoltage protection.

Chapter 12 Frequency Protection Functions

Overfluxing Protection

Explains overfluxing conditions, their causes, and the implementation of overfluxing protection.

Frequency Protection

Details the importance of system frequency balance and the provision of under/overfrequency protection.

Chapter 13 Monitoring and Control

Event Records

Explains how GE devices record events in an event log for analyzing power system conditions.

Disturbance Recorder

Details the disturbance recorder feature for recording selected current, voltage, and digital signals.

Chapter 14 Supervision

Voltage Transformer Supervision

Explains the VTS function for detecting AC voltage input failures and preventing maloperation of voltage-dependent functions.

Current Transformer Supervision

Details the CTS function for detecting AC current input failures, which could lead to maloperation.

Trip Circuit Supervision

Describes the schemes for supervising the trip coil and trip path, ensuring correct operation.

Chapter 15 Digital I/O and PSL Configuration

Configuring Digital Inputs and Outputs

Explains how to configure digital inputs and outputs, including opto-inputs, output relays, and programmable LEDs.

Scheme Logic

Introduces Fixed Scheme Logic (FSL) and Programmable Scheme Logic (PSL), and how they interact with the IED.

Chapter 16 Communications

Communication Interfaces

Summarizes standard and optional communication interfaces (ports, physical layers, uses, protocols).

Data Protocols

Provides a list of supported data protocols (Courier, MODBUS, IEC 60870-5-103, DNP 3.0, IEC 61850) and their physical layer relationships.

Chapter 17 Cyber-Security

The Need for Cyber-Security

Explains cyber-security's role in protecting information systems and common vulnerabilities.

Cyber-Security Implementation

Details the cyber-security measures implemented at the IED and external levels, including NERC-compliant display and access control.

Chapter 18 Installation

Mounting the Device

Details how to mount the device, including flush panel and rack mounting options.

Chapter 19 Commissioning Instructions

Chapter 20 Maintenance and Troubleshooting

Maintenance

Outlines maintenance checks for confirming correct operation, including alarms, opto-isolators, output relays, and measurement accuracy.

Troubleshooting

Guides on identifying error conditions, power-up errors, and operational errors to take corrective actions.

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