Technical analysis of ABB 1MRK002247-Apr04 protection relay module

1. Product overview

1MRK002247-Apr04 is a protective relay module in ABB Relion® series, which belongs to REF615 or similar parts/firmware version (the specific model needs to be confirmed with the complete order number). This module is designed for the protection and control of medium and low voltage power grids, providing protection functions such as over-current and grounding fault, and is suitable for the fields of industry, public utilities and infrastructure.

2. Core functions and features

Protection function:

Support directional/non-directional overcurrent protection (50/51, 50N/51N), ground fault protection (67N), automatic reclosing (79), etc.

Integrated measurement function: real-time monitoring of parameters such as current, voltage, power and electric energy.

Communication and integration:

Support IEC 61850(Edition 1/2), Modbus RTU/TCP, DNP3 and other protocols, and be compatible with ABB PCM600 engineering tools;

Optional optical fiber or copper communication interface.

Hardware design:

Compact modular structure, supporting DIN guide rail installation;

Working temperature:-25 C to+55 C, conforming to IEC 60255 standard.

3. Typical application scenarios

Industrial power distribution: backup protection for motors, transformers and buses;

Renewable energy: grid-connected protection of photovoltaic power stations and wind farms;

Smart grid: distribution automation (with ABB REC615 feeder terminal).

4. Configuration and maintenance

Engineering tools:

Parameters are adjusted by ABB PCM600 or Relion® 61850 Configurator;

Support CID file import and export, simplify IEC 61850 system integration.

Diagnostic function:

Built-in event record (up to 1000 events with time stamp);

The front panel LED indicates the operation status and fault type.