Make, carry and break ac inductive 10 A for 1.5 s, 10000 operations (subject to the above limits)Loaded contact 10000 operations min.Unloaded contact 100000 operations min.Operate time < 5 msReset time < 10 ms13.3 WATCHDOG CONTACTSUse Non-programmable contacts for relay healthy/relay fail indicationBreaking capacity, dc resistive 30 WBreaking capacity, dc inductive 15 W (L/R = 40 ms)Breaking capacity, ac inductive 375 VA inductive (cos phi = 0.7)13.4 SHORTING LINKMaximum operating voltage 300Vrms, 300VdcMaximum operating current 20AP24xM Chapter 21 - Technical SpecificationsP24xM-TM-EN-2.1 455

GE P24DM Technical Manual

Chapter 1 Introduction

Chapter Overview

Foreword

Nomenclature

Product Scope

Features and Functions

Control Functions

Compliance

Functional Overview

Chapter 2 Safety Information

Health and Safety

Symbols

Installation, Commissioning and Servicing

UL/CSA/CUL Requirements

Equipment Connections

Pre-energisation Checklist

Upgrading/Servicing

Decommissioning and Disposal

Regulatory Compliance

Chapter 3 Hardware Design

Hardware Architecture

Mechanical Implementation

List of Boards

Front Panel

HMI Panel

Front Parallel Port (SK2)

Programable LEDs

Rear Panel

Figure

Boards and Modules

Main Processor Board

Power Supply Board

Watchdog

Rear Serial Port

Input Module - 1 Transformer Board

Input Module Circuit Description

Transformer Board

Input Board

Standard Output Relay Board

IRIG-B Board

Fibre Optic Board

Rear Communication Board

Redundant Ethernet Board

Chapter 4 Software Design

Sofware Design Overview

System Level Software

System Level Software Initialisation

Platform Software

Protection and Control Functions

Programmable Scheme Logic

Event Recording

Chapter 5 Configuration

Settings Application Software

Using the HMI Panel

Navigating the HMI Panel

Default Display

Default Display Navigation

Password Entry

Menu Structure

Changing the Settings

Direct Access (The Hotkey menu)

Circuit Breaker Control

Date and Time Configuration

Without a Timing Source Signal

Daylight Saving Time Compensation

Settings Group Selection

Chapter 6 Current Protection Functions

Overcurrent Protection Principles

IEC 60255 IDMT Curves

European Standards

MiCOM P40 Agile

Ordering Options

Measurement Functions

Logic Diagrams

Keypad

Coprocessor Board

Distance Protection

Line Parameters

Residual Compensation

Chapter 6 Current Differential Protection

Current Differential Protection Principle

Communication Functions

Pre-energization Checklist

Peripheral Circuitry

Top compartment with hinged cover

Function Keys

Combined Coprocessor and Isolated Input Board

Input Module - 2 Transformer Boards

Sigma-Delta Input Module Circuit Description

Main Input Board

Ethernet Board

Chapter 4 Configuration

Processing Alarms and Fault Records

Setting Group Selection

Configuring the Data Protocols

DNP3 Configuration

DNP3 Configurator

MODBUS Configuration

IEC 61850 Configuration

IEC 61850 Configuration Banks

Configuration Settings

Date and Time

General Configuration

Transformer Ratios

System Configuration

Security Configuration

Chapter 5 Protection Functions

Busbar Protection

Through Fault Stability

Busbar Multiple Tripping Criteria

Topology Replica Function

Topology Replica Function DDBs

Zone Current Differential Elements

Check Zone Supervision

Current Phase Comparison Check

Optional Voltage Criteria

Dead Zone (Blind Spot) Protection Logic

Circuit Breaker Fail Protection

CB Fail Settings

CB Fail DDB signals

Backup Overcurrent Protection

Overcurrent 2 Settings

Overcurrent DDB signals

IEC61850-9-2LE Ethernet Board

High Break Output Relay Board

Fourier Signal Processing

Disturbance Recorder

Processing Alarms and Records

Control Inputs

CB Trip Conversion Logic Diagram

Mutual Compensation

Chapter 6 Sampled Value Operation

Introduction To Sampled Values

Data Resampling

Sampled Value Alignment

Impact of Data Quality on Protection Functions

TE Rear Panel

Terminal Connections

front panel

TE Front Panel

Liquid Crystal Display

Fixed Function LEDs

Software Design Overview

North American Standards

IEC and IEEE Inverse Curves

Differences Between the North american and European Standards

Timer Hold Facility

Phase Overcurrent Protection

Non-Directional Overcurrent Logic

Directional Element

Directional Overcurrent Logic

Application Notes

Ring Main Arrangements

Setting Guidelines (Directional Element)

Voltage Dependent Overcurrent Element

Voltage Restrained Overcurrent Protection

Voltage Dependent Overcurrent Logic

Current Setting Threshold Selection

Negative Sequence Overcurrent Protection

Non-Directional Negative Sequence Overcurrent Logic

Earth Fault Protection

Non-directional Earth Fault Logic

Negative Sequence Polarisation

Peterson Coil Earthed Systems

INTRODUCTION

HEALTH AND SAFETY

DE-COMMISSIONING AND DISPOSAL

Installation category

Environment

INTRODUCTION TO MICOM

PRODUCT SCOPE

Ordering options

DNP3.0

troubleshooting

P24DM

P24NM