Title :
Hydro-Quebec´s concerns related to performances of SF/sub 6/ circuit-breakers
Author :
Beauchemin, Roger ; Latour, Yves ; Landry, Michel ; Riffon, Pierre
Author_Institution :
Hydro-Quebec, Montreal, Que., Canada
fDate :
7/1/1993 12:00:00 AM
Abstract :
Hydro-Quebec´s concerns regarding circuit breaker reliability are presented. Emphasis is placed on two aspects crucial in determining line charging current breaking capacity, i.e., the arc duration and the test circuit configuration. The importance of manufacturing quality for the arcing contacts, nozzles and gasket is discussed. Test criteria at 20 degrees C for simulating breaking tests at -50 degrees C are given. Hydro-Quebec´s requirements for testing the tightness of SF/sub 6/ breakers are presented together with a reliable leakage-measuring method.<>
Keywords :
circuit breakers; circuit-breaking arcs; gaseous insulation; leak detection; quality control; reliability; sulphur compounds; switchgear testing; -50 degC; 20 degC; Canada; GIS; Hydro-Quebec; SF/sub 6/; arc duration; arcing contacts; circuit breaker; gasket; leak detection; line charging current breaking capacity; manufacturing quality; nozzles; performances; reliability; switchgear testing; test circuit; tightness;
Journal_Title :
Power Delivery, IEEE Transactions on
