An on-line condition-monitoring system for high voltage SF{sub 6} circuit breakers

Technical Report · Fri Mar 01 04:00:00 EST 1996

OSTI ID:269641

Khan, A H ^[1]; York, R A ^[2]

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1. ABB Transmission Technology Institute, Raleigh, NC (United States)
2. ABB Power Circuit Breaker Division, Greensburg, PA (United States)

This paper describes the design approach taken by one manufacturer to integrate monitoring and diagnostic systems into high voltage, single pressure SF{sub 6} circuit breakers. Although high voltage circuit breaker reliability has improved significantly as a result of single pressure SF{sub 6} technology, the need for diagnostic systems has increased as the utility industry seeks to maintain equipment reliability, improve availability, and reduce life-cycle costs (from reduced maintenance). The results of an international survey of high voltage circuit breaker reliability are discussed to identify the required functions for a diagnostic system. The specific features of the ABB Condition Monitoring Unit for dead-tank, SF{sub 6} circuit breakers are presented. The unique approach described here utilizes the manufacturers detailed knowledge of circuit breaker designs to provide meaningful and accurate diagnostic information.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); Cambias and Associates, Covington, LA (United States)
• OSTI ID: 269641
• Report Number(s): EPRI-TR--105838; CONF-9411304--
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
CIRCUIT BREAKERS
DESIGN
HVAC SYSTEMS
ON-LINE SYSTEMS