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Guide

First edition July 2002

Previously called Protective Relays Application Guide

First printed June 1966

Reprinted January 1967August 1968November 1970September 1971February 1973January 1974

Second edition

First printed March 1975

Reprinted November 1977December 1979November 1982October 1983October 1985

Third edition

First printed June 1987

Reprinted September 1990March 1995

All rights reserved Copyright AREVA 2005AREVA T&D - 1, Place de la Coupole - 92084 Paris La Défense - France.

www.areva-td.comAREVA T&D Worlwide Contact Centre:

http://www.areva-td.com/contactcentre/Tel.: +44 (0) 1785 250 070

ISBN : 2-9518589-0-6

Layout by Flash Espace, Montpellier, France - Printed by Cayfosa, Barcelona, Spain

Net work P rote ct ion & A utomat ion G uide

This book is the result of the co-operation and teamworkof the many specialist engineers employed by AREVAT&D Automation & Information Systems.

The Company would like to acknowledge their assistancein producing this edition.

AREVA T&D would also like to acknowledge gratefullythe co-operation of the following companies in providingmaterial for this edition.

ALSTOM Power

AREVA T&D Transformers

AREVA T&D Instrument Transformers

AREVA T&D Distribution Switchgear

AREVA T&D Network Planning

ALSTOM Electrical Machines

ALSTOM Transport/Virgin Trains

The invaluable contributions of PB Power within thereview process are also acknowledged gratefully.

Peter Rush

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N e t w o r k P r o t e c t i o n & A u t o m a t i o n G u i d e

Ack n owl e dge me nts