Title :
An enhanced method of providing sensitive bus fault protection
Author :
Stringer, Norman T.
Author_Institution :
Artwel Electric, Inc, Sacramento, CA, USA
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 :
industrial power systems; overcurrent protection; power distribution faults; power distribution protection; relay protection; bus fault protection; digital overcurrent relays; downstream feeder breaker backup protection; downstream overcurrent devices coordination; industrial facilities; overcurrent relays; protection logic; protection sensitivity; relay backup protection; relay interconnection; relay setting; upstream breaker; zone interlocking; Delay effects; Digital relays; Fault currents; Impedance; Industrial plants; Power system faults; Power system relaying; Protection; Protective relaying; Senior members;
Conference_Titel :
Industrial and Commercial Power Systems Technical Conference, 2001. Conference Record. Papers Presented at the 2001 Annual Meeting. 2001 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-7055-4
DOI :
10.1109/ICPS.2001.966522
