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GE P4A User Manual

GE P4A
850 pages
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GE Energy Connections
Grid Solutions
MiCOM P40 Agile
P54A, P54B, P54C, P54E
Technical Manual
Single Br
eaker Multi-End Current Differential IED (Non Distance)
Hardware Version: M,P
Software Version: 01
Publication Reference: P54xMED-TM-EN-1

Table of Contents

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GE P4A Specifications

General IconGeneral
BrandGE
ModelP4A
CategoryRelays
LanguageEnglish

Summary

Chapter 1 Introduction

Foreword

Provides an overview of the manual's scope, target audience, and typographical conventions.

Product Scope

Details the capabilities and variants of the MiCOM P40 Agile IEDs for multi-ended differential protection.

Features and Functions

Lists and describes the current differential, protection, control, measurement, and communication functions.

Logic Diagrams

Explains the convention for logic diagrams and provides a key.

Functional Overview

Presents a diagram illustrating the functional overview of the protection products.

Chapter 2 Safety Information

Health and Safety

Emphasizes the importance of qualified personnel and adherence to safety practices.

Installation, Commissioning and Servicing

Covers hazards and precautions related to installation, commissioning, and servicing, including electrical hazards.

Decommissioning and Disposal

Provides guidance on safely decommissioning and disposing of the equipment.

Regulatory Compliance

Details compliance with relevant European directives (EMC, LVD, R&TTE) and standards (UL/CUL, ATEX).

Chapter 3 Hardware Design

Hardware Architecture

Describes the main components, housing, and interconnection of boards and modules.

Mechanical Implementation

Covers modular construction, case sizes (TE units), and mounting options.

List of Boards

Details the various boards and modules available and their associated uses.

Front Panel

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

Rear Panel

Details the rear panel cut-outs and slot allocations for various boards and terminal blocks.

Chapter 4 Software Design

Software Design Overview

Categorizes the device software into system level, platform, and protection/control software.

System Level Software

Describes the real-time operating system, system services, and self-diagnostic software.

Platform Software

Details the functions of the platform software, including record logging and settings database.

Protection and Control Functions

Explains the software processes for protection elements and measurement functions, such as sample acquisition and frequency tracking.

Chapter 5 Configuration

Settings Application Software

Introduces the MiCOM S1 Agile software for configuring IEDs.

Using the HMI Panel

Explains navigation and operation of the Human Machine Interface (HMI) panel.

Line Parameters

Details the circuit information required for protection elements, including impedance and phase rotation.

Date and Time Configuration

Covers methods for synchronizing the device's clock using SNTP, IRIG-B, or IEEE 1588 PTP.

Settings Group Selection

Describes methods for selecting and managing different setting groups.

Chapter 6 Current Differential Protection

Current Differential Protection Principle

Explains the fundamental principles of current differential protection and its application.

Multi-ended Line Differential Protection

Details the features and advantages of multi-ended line differential protection.

Basic Principles and Algorithm Design for Multi-ended Differential Protection

Presents the core principles and algorithm design for multi-ended differential protection.

Communication Requirements

Specifies the communication topology, protocol, and bandwidth required for protection schemes.

Charging Current Compensation

Explains the mathematical model for calculating and compensating for charging current in transmission lines.

Synchronisation of Current Signals

Describes the 'Time Alignment' or 'Synchronisation' process for accurate current calculations.

CT Saturation

Explains the GE patented technique for CT saturation that discriminates between internal and external faults.

CT Compensation

Details the use of CT ratio compensation to overcome ratio mismatches.

Current Differential Intertripping

Describes the intertripping functions for isolating faults at all terminals.

Stub Bus Differential Protection

Explains the provision of stub-bus protection associated with differential protection.

Application Notes

Provides guidance on feeder topology and configuring protection communications.

Chapter 7 Autoreclose

Introduction to Autoreclose

Discusses the transient nature of faults and the benefits of autoreclose schemes.

Autoreclose Implementation

Explains the terminology and logic inputs/outputs for autoreclose.

Autoreclose System Map

Illustrates the interconnection of logic modules used in the autoreclose system.

Logic Modules

Contains logic diagrams that help explain the autoreclose function.

Setting Guidelines

Provides guidance on setting parameters for dead time, reclaim time, and autoreclose modes.

Chapter 8 CB Fail Protection

Circuit Breaker Fail Protection

Describes the function of Circuit Breaker Fail Protection and its importance for fault isolation.

Circuit Breaker Fail Implementation

Details the implementation of CBF, including timers and resetting options.

Circuit Breaker Fail Logic

Presents the logical diagrams for circuit breaker fail protection, covering various scenarios.

Application Notes

Provides guidance on reset mechanisms for CB fail timers and setting guidelines.

Chapter 9 Current Protection Functions

Phase Fault Overcurrent Protection

Details the implementation and directional elements of phase fault overcurrent protection.

Negative Sequence Overcurrent Protection

Explains the use of negative phase sequence overcurrent elements for unbalanced faults.

Earth Fault Protection

Describes the implementation and logic of earth fault protection, including IDG curve.

Sensitive Earth Fault Protection

Details the implementation of SEF protection, including EPATR B curve and logic.

High Impedance REF

Explains the principle and connection of high impedance restricted earth fault protection.

Thermal Overload Protection

Describes the single and dual time constant characteristics for thermal overload protection.

Broken Conductor Protection

Details the implementation and logic for broken conductor protection.

Chapter 10 Voltage Protection Functions

Undervoltage Protection

Discusses undervoltage conditions and their protection implementation.

Overvoltage Protection

Explains overvoltage conditions and their protection implementation.

Compensated Overvoltage

Describes the function that calculates positive sequence voltage at the remote terminal.

Residual Overvoltage Protection

Explains residual overvoltage protection and its implementation.

Chapter 11 Frequency Protection Functions

Frequency Protection

Covers underfrequency and overfrequency protection to ensure system frequency stability.

Independent R.O.C.O.F Protection

Explains protection that identifies high rates of frequency decline.

Chapter 12 Monitoring and Control

Event Records

Describes how events are logged and displayed.

Disturbance Recorder

Details the functionality for recording selected current and voltage inputs.

Measurements

Details the system quantities measured and calculated by the device.

CB Condition Monitoring

Explains the statistics related to circuit breaker trip operations.

CB State Monitoring

Describes how the open or closed state of a circuit breaker is verified.

Circuit Breaker Control

Details the methods for controlling the circuit breaker locally and remotely.

Pole Dead Function

Explains the logic for determining and indicating when phases are not energized.

System Checks

Covers Live/Dead Voltage Monitoring, Check Synchronisation, and System Split indication.

Chapter 13 Supervision

Current Differential Supervision

Explains supervision of current differential protection in case of communications path switching.

Voltage Transformer Supervision

Describes the function for detecting voltage transformer failures.

Current Transformer Supervision

Explains the function for detecting current transformer failures.

Trip Circuit Supervision

Details the schemes provided for supervision of the trip circuit.

Chapter 14 Digital I/O and PSL Configuration

Configuring Digital Inputs and Outputs

Covers configuration of digital inputs and outputs using settings and programmable logic.

Scheme Logic

Explains scheme logic, including fixed and programmable scheme logic (FSL/PSL).

Configuring the Opto-Inputs

Details configuration of opto-inputs, including voltage range and filtering.

Assigning the Output Relays

Explains how output relays are controlled using PSL and DDB signals.

Fixed Function LEDs

Describes the four fixed-function LEDs on the front panel.

Configuring Programmable LEDs

Details programmable LEDs and their control via conditioners.

Function Keys

Explains the programmable function keys and their association with LEDs.

Control Inputs

Describes control inputs as software switches for triggering PSL functions.

Chapter 15 Fibre Teleprotection

Fibre Teleprotection Implementation

Provides information on the fibre-optic communication mechanism for teleprotection signalling.

Communications Supervision

Explains the IM64 supervision of communications paths.

IM64 Logic

Illustrates the IM64 channel fail and scheme fail logic.

Application Notes

Discusses scheme reconfiguration and alarm management for fibre teleprotection.

Chapter 16 Electrical Teleprotection

Introduction

Introduces electrical teleprotection as an optional feature using communication links.

Teleprotection Scheme Principles

Describes Direct Tripping, Permissive Tripping, and Blocking Scheme.

Implementation

Explains the configuration of Electrical InterMiCOM using settings.

Configuration

Details customisation of command signals for security, speed, and dependability.

Connecting to Electrical InterMiCOM

Explains the physical connection options for Electrical InterMiCOM.

Application Notes

Provides recommendations for setting IM# FrameSyncTim and managing communications failure.

Chapter 17 Communications

Communication Interfaces

Summarises standard and optional communication interfaces, including physical layers and data protocols.

Serial Communication

Describes physical layer standards for serial communications: EIA(RS)485, K-Bus, and EIA(RS)232.

Standard Ethernet Communication

Details the Ethernet interface for IEC 61850 or DNP3 over Ethernet, including hot-standby failover.

Redundant Ethernet Communication

Explains redundancy requirements for critical applications using PRP, HSR, RSTP, SHP, and DHP protocols.

Simple Network Management Protocol (SNMP)

Describes SNMP for managing devices in an IP network, including MIB structures.

Data Protocols

Lists the SCADA data protocols supported, such as Courier, MODBUS, IEC 60870-5-103, DNP3.0, and IEC 61850.

Read Only Mode

Provides a facility to enable or disable communication interfaces for security purposes.

Time Synchronisation

Explains methods for synchronizing the IED's real time clock using IRIG-B, SNTP, or IEEE 1588 PTP.

Chapter 18 Cyber-Security

Overview

Provides an overview of cyber-security requirements in substation networks.

The Need for Cyber-Security

Discusses the importance of protecting information systems against cyber-attacks.

Standards

Lists standards applicable to substation cyber-security, including NERC CIP and IEEE 1686.

Cyber-Security Implementation

Describes the current cyber-security measures implemented at the IED and external levels.

Chapter 19 Installation

Handling the Goods

Covers requirements for receiving, unpacking, and personal safety regarding the product.

Mounting the Device

Details flush panel mounting and rack mounting procedures.

Cables and Connectors

Describes the type of wiring and connections to be used, including terminal blocks and crimp terminals.

Case Dimensions

Provides physical dimensions for the 40TE, 60TE, and 80TE case types.

Chapter 20 Commissioning Instructions

General Guidelines

Provides general advice for commissioning IEDs, focusing on hardware verification and software settings.

Commissioning Test Menu

Describes the test facilities available via the IED's menu, including opto-input status, relay output status, and port status.

Commissioning Equipment

Lists recommended, essential, and advisory test equipment required for commissioning.

Product Checks

Details checks to ensure the device is undamaged, functioning correctly, and within specified tolerances.

Electrical Intermicom Communication Loopback

Explains how to configure and perform loopback tests for InterMiCOM communication.

Intermicom 64 Communication

Describes the fibre-optic interfaces and their capabilities.

Setting Checks

Ensures all application-specific settings and PSL logic settings are correctly applied.

IEC 61850 Edition 2 Testing

Explains how to use test modes for online testing and logical isolation of IEC 61850 functions.

Current Differential Protection

Details testing procedures for current differential bias characteristics, including lower and upper slopes.

Protection Timing Checks

Focuses on verifying the timing of protection functions.

System Check and Check Synchronism

Describes the function that compares line and bus voltages for synchronism.

Check Trip and Autoreclose Cycle

Explains how to test the trip and autoreclose cycle automatically.

End-to-End Communication Tests

Details procedures for removing loopbacks and verifying communication between IEDs.

Onload Checks

Covers checks that can be carried out with the plant energized, such as voltage and current connections.

Final Checks

Lists final steps to ensure correct application settings, restore preferred language, and put the IED into service.

Chapter 21 Maintenance and Troubleshooting

Maintenance

Provides details on performing regular checks and maintenance on the device.

Troubleshooting

Guides on identifying error conditions and taking corrective actions, including replacing modules.

Chapter 22 Technical Specifications

Interfaces

Summarizes the available communication interfaces such as serial ports, Ethernet, and IRIG-B.

Protection Functions

Details the accuracy specifications for various protection functions.

Monitoring, Control and Supervision

Lists specifications for voltage transformer supervision, current transformer supervision, and CB state monitoring.

Measurements and Recording

Provides accuracy specifications for measurements and recording functions like disturbance records.

Ratings

Details AC measuring inputs, current transformer inputs, voltage transformer inputs, and auxiliary supply voltage ratings.

Input / Output Connections

Describes the specifications for digital inputs and output contacts.

Mechanical Specifications

Covers physical parameters, enclosure protection, mechanical robustness, and transit packaging.

Type Tests

Lists specifications for insulation, creepage distances, high voltage, and impulse voltage withstand tests.

Environmental Conditions

Provides specifications for ambient temperature range, temperature endurance, ambient humidity, and corrosive environments.

Electromagnetic Compatibility

Details tests for high frequency disturbance, damped oscillatory, electrostatic discharge, fast transient, surge withstand, radiated, and conducted disturbances.

Regulatory Compliance

Lists compliance with relevant European directives and standards like UL/CUL and ATEX.

Appendix A Ordering Options

Variants

Details the different product variants based on case size and basic configuration.

Hardware options

Lists available hardware options like IRIG-B, Fibre Optic Converters, and Ethernet interfaces.

Product Options

Describes the different configurations of physical fibre teleprotection channels and I/O.

Protocol options

Lists the supported communication protocols like K-Bus, IEC60870-5-103, DNP3.0, and IEC61850.

Mounting

Specifies mounting options such as flush/panel mounting and rack mounting.

Language

Indicates available language options for HMI and communications ports.

Software version

Specifies the software version, such as 'Without Distance'.

Customer specific options

Lists options for standard or customer-specific configurations.

Hardware version

Details the hardware version, e.g., CPU3 with increased main processor memory.

Appendix B Settings and Signals

SYSTEM DATA

Contains general system settings like language, password, and plant reference.

Displays the status of the first 32 alarms as a binary string. Includes fixed and user settable alarms.

Shows the status of alarms, categorized by type and whether they are fixed or user settable.

Displays the status of the first 32 trip signals.

Indicates the status of trip signals, categorized by protection function.

Displays the status of the fault alarm signals.

Shows the status of fault alarms.

Displays fault time and date

Provides the time and date of fault occurrences.

Displays active setting group

Indicates the currently active setting group.

Displays the system frequency

Shows the system frequency.

Fault Duration

Indicates the duration of the fault.

CB Operate Time

Displays the calculated circuit breaker operating time.

IA Differential

Provides the differential current measurement for phase A.

IB Differential

Provides the differential current measurement for phase B.

IC Differential

Provides the differential current measurement for phase C.

IN Differential

Provides the differential current measurement for residual current.

Max I Bias

Indicates the maximum bias current.

Ch 1 Prop Delay

Shows the propagation delay for communication channel 1.

Ch 2 Prop Delay

Shows the propagation delay for communication channel 2.

Ch 1 TX Prop Dly

Shows the transmit propagation delay for channel 1.

Ch 2 TX Prop Dly

Shows the transmit propagation delay for channel 2.

VN Measured

Displays the measured residual voltage.

IA Local

Displays the measured current for phase A at the local end.

IB Local

Displays the measured current for phase B at the local end.

IC Local

Displays the measured current for phase C at the local end.

IA remote 1

Displays the measured current for phase A at remote end 1.

IB remote 1

Displays the measured current for phase B at remote end 1.

IC remote 1

Displays the measured current for phase C at remote end 1.

IA remote 2

Displays the measured current for phase A at remote end 2.

IB remote 2

Displays the measured current for phase B at remote end 2.

IC remote 2

Displays the measured current for phase C at remote end 2.

IA Differential

Shows the differential current for phase A.

IB Differential

Shows the differential current for phase B.

IC Differential

Shows the differential current for phase C.

IN Differential

Shows the differential current for residual current.

Max I Bias

Indicates the maximum bias current.

Max Ih(2)

Indicates the maximum value for Ih(2).

Ch 1 Prop Delay

Shows the propagation delay for communication channel 1.

Ch 2 Prop Delay

Shows the propagation delay for communication channel 2.

Ch 1 TX Prop Dly

Shows the transmit propagation delay for channel 1.

Ch 2 TX Prop Dly

Shows the transmit propagation delay for channel 2.

VN Measured

Displays the measured residual voltage.

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