Title :
The development of a vacuum interrupter retrofit for the upgrading and life extension of 121 kV-145 kV oil circuit breakers
Author :
Slade, P.G. ; Voshall, R.E. ; Wayland, P.O. ; Bamford, A. ; McCracken, G. ; Yeckley, R. ; Spindle, H.
Author_Institution :
Westinghouse Sci. & Technol. Center, Pittsburgh, PA, USA
fDate :
7/1/1991 12:00:00 AM
Abstract :
A new, compact, high voltage vacuum interrupter has been developed that can interrupt 40 kA (RMS). This interrupter has been incorporated into a cost-effective, retrofit kit to upgrade 121 kV-145 kV oil circuit breakers from 10 kA and 20 kA to 40 kA. Extensive testing of a breaker retrofitted with this kit shows that it will satisfy the existing ANSI standards. The retrofit kit not only considerably extends the breaker´s life, but it also provides a significant reduction of breaker maintenance
Keywords :
circuit breakers; maintenance engineering; vacuum apparatus; 10 to 40 kA; 121 to 145 kV; ANSI standards; life extension; oil circuit breakers; vacuum interrupter retrofit; Capacitors; Circuit breakers; Circuit testing; Costs; Interrupters; Magnetic circuits; Petroleum; Switches; Vacuum technology; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
