ABB 1MRK002133-ABr03 Relion 670 Analog-to-Digital Module

Product Description

Overview

The 1MRK002133-ABr03 is a high-performance Analog-to-Digital Conversion Module (ADM) from ABB, engineered for the Relion 670 series IEDs, including RED670, REG670, and REC670. Acting as the primary digitizer, it transforms scaled analog signals from the Transformer Input Module (TRM) into precise digital data streams for protection and monitoring algorithms. This module ensures high-speed, high-fidelity signal processing critical for power system protection and control.

Technical Features

High-Speed Sampling

• Sampling frequency: 40–80 samples per cycle, capturing fast transients and harmonics

• Resolution: 16-bit or higher A/D converters for broad dynamic range

Signal Conditioning & Accuracy

• Hardware anti-aliasing filters for clean signal representation

• Phase alignment: minimal channel phase shift for accurate differential and distance protection calculations

Data Integrity & Monitoring

• Continuous internal self-checks to detect drift or faults

• Timestamped, synchronized digital outputs compatible with internal CPU and other modules

Hardware & Communication

• Direct backplane interface for high-speed data transfer

• Galvanic isolation maintained from TRM

• Supports multiple communication protocols for seamless integration

Specifications

Applications

• Power system protection: instantaneous fault detection for transformers, feeders, and busbars

• Process control: accurate measurement of analog signals in industrial automation

• Data acquisition: real-time waveform capture for analysis and diagnostics

Handling Notes

This module is sensitive to ESD; replacement or handling must occur in an ESD-safe environment. Verify compatibility with the current firmware using ABB PCM600 before installation.

FAQ

Q: Can this module work with older Relion 670 firmware versions?
A: Compatibility depends on firmware version; check PCM600 for verification.

Q: What happens if the ADM fails?
A: The IED may lose analog input visibility, triggering a “Blocked” or “Fail” state.

Q: Is the module interchangeable with other ABB series?
A: No, it is specifically designed for the 670 series.