Description Of 3 Ph Package A20A - ABB Relion 670 Series Applications Manual

Bay control, version 2.1 ansi

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Table of Contents

1MRK 511 358-UUS A

circuit breakers. Thus full disconnector/breaker supervision is available. This configuration is

available for only three REB670 variants (that is A31, B21 and B31).

In order to use X03 configuration, optional breaker failure and overcurrent functions must be

Description of 3 ph package A20A

Three-phase version of the IED with two low-impedance differential protection zones and four

three-phase CT inputs A20A. The version is intended for simpler applications such as T-

connections, meshed corners, and so on.

Application manual

Configuration

SEMOD129275-4 v7

Relion rec670