Intelligent reclosing for overdutied breakers

Author

Apostolov, A.P. ; Bronfeld, J.D. ; Feltis, M.W.

Author_Institution

New York State Electr. & Gas Corp., Binghamton, NY, USA

fYear

1994

fDate

10-15 Apr 1994

Firstpage

253

Lastpage

258

Abstract

The increase in power system fault current magnitudes above the derated breaker interrupting capability requires the use of circuit breaker replacement, current limiting devices, changes in system configuration, etc. All the above solutions to the overdutied circuit breaker problem are very expensive. This paper demonstrates that by applying a combination of breaker trip with fault current control and adjusting the number of reclosing shots as a function of the fault current magnitude, breakers overdutied by fault currents between the derated and 100% of the breaker interrupting capability do not need replacement. This approach was applied in New York State Electric and Gas (NYSEG)´s system for about 30 overdutied circuit breakers

Keywords

circuit breakers; electric current control; fault currents; intelligent control; microcomputer applications; power system computer control; power system protection; programmable controllers; relay control; relay protection; breaker trip; circuit breaker; fault current control; intelligent reclosing; interrupting capability; microprocessor relays; overduty; power system fault currents; programmable logic controllers; reclosing shots; Circuit faults; Current limiters; Fault currents; IEEE members; Logic devices; Programmable logic arrays; Programmable logic devices; Relays; Substations; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference, 1994., Proceedings of the 1994 IEEE Power Engineering Society

Conference_Location

Chicago, IL

Print_ISBN

0-7803-1883-8

Type

conf

DOI

10.1109/TDC.1994.328389

Filename

328389