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Alstom MiCOM P127 User Manual

Alstom MiCOM P127
110 pages
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Technical Guide P12y/EN FT/D22
MiCOM P125/P126/P127
User Guide

Table of Contents

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Alstom MiCOM P127 Specifications

General IconGeneral
ManufacturerAlstom
ModelMiCOM P127
Frequency50/60 Hz
Current Inputs1A or 5A
OutputsRelay outputs
DisplayLCD Display
Rated Voltage100-240 V AC
Protection FunctionsOvercurrent, Earth Fault, Under/Over Voltage, Frequency Protection
Communication ProtocolsIEC 60870-5-103, Modbus

Summary

Introduction

Password Management

Password Protection and Entry

Explains password applicability, entry process, and factory default settings.

Alarm & Warning Message Display

Details on how alarm and warning messages are displayed on the LCD and LEDs.

General Characteristics

Analogue Inputs

Details the types and quantities of analogue inputs for MiCOM P125, P126, and P127 relays.

Menu System Overview

Menu OP PARAMETERS

Accessing and configuring operational parameters, including password entry.

Menu CONFIGURATION

Configuration options for currents, voltages, CT/VT ratios, and LEDs.

Menu MEASUREMENTS

Displaying system measurement values like current, voltage, and energy.

Menu COMMUNICATION

Configuration for communication protocols like ModBus, Courier, IEC 60870-5-103, DNP3.

Menu PROTECTION

Configuration of various protection functions available on MiCOM relays.

Menu AUTOMAT. CTRL

Automation control functions, including trip commands, logic, and outputs.

Menu RECORDS

Displaying stored data, events, disturbances, and monitoring signals.

Wiring and Connectivity

Auxiliary Power Supply

Details on auxiliary power supply voltage ranges and connection terminals.

Logic Inputs

Details on the number, type, and assignment of logic inputs.

Communication Ports

Details on RS485 rear and RS232 front communication ports.

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