DocumentCode :
2353803
Title :
A generic communications language-four years of experience
Author :
Ball, R. ; Hill, K.
Author_Institution :
GEC Alsthom T&D Protection & Control Ltd., UK
fYear :
1997
fDate :
25-27 Mar 1997
Firstpage :
304
Lastpage :
308
Abstract :
The introduction of the microprocessor to protective relays and other technological advances have made it feasible to add communication facilities to relays, enabling remote monitoring by direct extraction of available data and remote control of the items of plant connected to the relays. Power utilities have shown a marked change in attitude by an ever increasing interest in using relay communication features. Principally to remove the need for external monitoring and control devices, such as transducers and auxiliary relays, thus reducing functional duplication, wiring, commissioning and hence lowering cost. As yet there is no accepted international standard for communication links with protective relays. Work within the IEC has resulted in the proposal, IEC870-5 companion standard 103, as the informative interface for protection and control relays. This proposed standard embodies the generic principles developed and used within our generic protocol. This paper describes a generic communication system developed specifically for remote monitoring and control of protective relays within the substation environment, changes in attitude towards communications, practical experience and it´s influence on IEC870-5-103
Keywords :
power system protection; IEC; IEC870-5-103 proposed standard; busy message function; communication facilities; data polling; generic communications system; microprocessor; power utilities; protective relays; remote control; remote monitoring; substation environment;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Developments in Power System Protection, Sixth International Conference on (Conf. Publ. No. 434)
Conference_Location :
Nottingham
ISSN :
0537-9989
Print_ISBN :
0-85296-672-5
Type :
conf
DOI :
10.1049/cp:19970087
Filename :
608212
Link To Document :
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