Distribution transformer secondary circuit interrupter having an

Electricity: electrothermally or thermally actuated switches – With separate distinct diverse art-type switching device – Bimetallic device with other

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337111, 337379, H01H 3752, H01H 7116

Patent

active

041059867

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.

REFERENCES:
patent: 2122693 (1938-07-01), Maseng

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