Coordination of directional overcurrent relays in transmission systems-a subsystem approach

Author

Ramaswami, R. ; Damborg, M.J. ; Venkata, S.S.

Author_Institution

Electrocon Int. Inc., Ann Arbor, MI, USA

Volume

5

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

64

Lastpage

71

Abstract

A new concept, called subsystem coordination, for efficiently computing proper settings of directional overcurrent relays on transmission systems in response to changes in system topology and load levels is proposed. An automatic window identification and coordination algorithm has been developed, implemented, and tested on a realistic transmission system. The test results have been validated through a full system coordination study, and the significant reduction in computer time required by the subsystem approach has been demonstrated

Keywords

overcurrent protection; relay protection; transmission networks; automatic window coordination algorithm; automatic window identification algorithm; directional overcurrent relays; load levels; protection; subsystem coordination; system topology; transmission systems; Automatic testing; Data engineering; Design engineering; Maintenance engineering; Power system relaying; Protection; Protective relaying; Relays; System testing; Topology;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.107257

Filename

107257