Section 1 Introduction; This Manual; Intended Audience - ABB RELION REX640 Operation Manual

1MRS759118 A
Section 1
1.1
1.2
REX640
Operation Manual
Introduction

This manual

The operation manual contains instructions on how to operate the protection relay
once it has been commissioned. The manual provides instructions for monitoring,
controlling and setting the relay. The manual also describes how to identify
disturbances and how to view calculated and measured power grid data to determine
the cause of a fault.

Intended audience

This manual addresses the operator who operates the protection relay frequently.
The operator must be trained in and have a basic knowledge of how to operate
protection equipment. The manual contains terms and expressions commonly used to
describe this kind of equipment.
Section 1
Introduction
5