Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1989-12-29
1990-11-20
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148B, 200150R, 200145, H01H 3366
Patent
active
049720554
ABSTRACT:
A circuit breaker utilizes a plurality of vacuum interrupters immersed in oil. A cross-bar with electrically conductive sections completes a series electrical circuit through the circuit breaker and actuates operating mechanisms, to close the contacts of the vacuum interrupters when in the raised position as the cross-bar is lowered, the contacts of the vacuum interrupters are opened by impact forces before isolation gaps which fill with oil are created in the series electrical circuit. Various arrangements of the vacuum interrupters are disclosed for uprating existing oil circuit breakers.
REFERENCES:
patent: 1720413 (1929-07-01), Greenwood
patent: 1783279 (1930-12-01), Burnham
patent: 3300609 (1967-01-01), Flurscheim et al.
patent: 3814885 (1974-06-01), Soflanek
patent: 3839612 (1974-10-01), Badey et al.
patent: 4105878 (1978-08-01), Date et al.
patent: 4225761 (1980-09-01), Barkan et al.
patent: 4440995 (1984-04-01), Lange et al.
patent: 4527028 (1985-07-01), Luehring
Descriptive Bulletin, 33-253 D WE A, Westinghouse Electric Corporation, Oil Circuit Breaker Department, Jan. 7, 1975, pp. 1-12 (Type GM and GMA Outdoor Oil Circuit Breakers).
Perulfi John R.
Rostron Joseph R.
ABB Power T&D Company Inc.
Macon Robert S.
Westerhoff Richard V.
LandOfFree
Multiple vacuum interrupter fluid insulated circuit breaker with does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple vacuum interrupter fluid insulated circuit breaker with, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple vacuum interrupter fluid insulated circuit breaker with will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-455190