An enhanced method of providing sensitive bus fault protection

Author

Stringer, Norman T.

Author_Institution

Artwel Electr. Inc., Sacramento, CA, USA

Volume

39

Issue

3

fYear

2003

Firstpage

600

Lastpage

604

Abstract

The application of bus fault protection in industrial facilities has been primarily limited to overcurrent relays located at the upstream breaker. This does not always provide the best protection for bus faults. The protection sensitivity is limited because of the need to coordinate with other downstream overcurrent devices. This paper describes an enhanced method of applying sensitive bus fault protection using digital overcurrent relays. In addition, this method provides both downstream feeder breaker backup protection and relay backup protection.

Keywords

busbars; industrial power systems; overcurrent protection; power system faults; power system protection; power system relaying; relay protection; digital overcurrent relays; downstream feeder breaker backup protection; industrial facilities; overcurrent devices; protection sensitivity; relay backup protection; sensitive bus fault protection method; upstream breaker; Delay effects; Digital relays; Industrial plants; Industrial power systems; Industry Applications Society; Medium voltage; Power system faults; Power system protection; Power system relaying; Protective relaying;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2003.810932

Filename

1201523