About This Manual; Copyrights; Trademarks; General - ABB REX 521 Operator's Manual

1MRS 751107-MUM
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Protection Relay
Operator's Manual

About this manual

Copyrights

The information in this document is subject to change without notice and should not
be construed as a commitment by ABB Oy. ABB Oy assumes no responsibility for
any errors that may appear in this document.
In no event shall ABB Oy be liable for direct, indirect, special, incidental or
consequential damages of any nature or kind arising from the use of this document,
nor shall ABB Oy be liable for incidental or consequential damages arising from
use of any software or hardware described in this document.
This document and parts thereof must not be reproduced or copied without written
permission from ABB Oy, and the contents thereof must not be imparted to a third
party nor used for any unauthorized purpose.
The software or hardware described in this document is furnished under a license
and may be used, copied, or disclosed only in accordance with the terms of such
license.
Copyright © 2004 ABB Oy
All rights reserved.

Trademarks

Brand and product names mentioned in this document are trademarks or registered
trademarks of their respective companies.

General

The purpose of this manual is to provide the user with basic information on the
protection relay REX 521 Revision E, and to especially focus on explaining the use
of the human-machine interface (HMI).
For information about the new features of the relay, refer to
Reference Manual, General (see "Related documents" on page 6).
REX 521
REX 521 Technical
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