Theodore A Gogniat

US Patent:

41059867, Aug 8, 1978

Filed:

Nov 24, 1976

Appl. No.:

5/744860

Inventors:

Theodore Gogniat - Monroeville PA
John F. Cotton - Athens GA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01H 3752
H01H 7116

US Classification:

337 3

Abstract:

A circuit breaker particularly adapted for use in an oil filled distribution transformer includes an improved bimetal trip actuator which exhibits greater deflection for a given degree of power dissipation. The trip actuator includes a planar bimetal element held relatively stationary at one end and free to deflect at the other end in response to overload current conditions through the circuit breaker. The bimetal element is constructed to have a higher power dissipation in proximity to the stationary end than in proximity to the deflecting end.