Low oil trip and/or lockout apparatus

Details Low oil trip and/or lockout apparatus Low oil trip and/or lockout apparatus

1985-02-07

1986-05-27

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 37, 335164, H01H 7512, H01H 7700, H01H 920

Patent

active

045918163

ABSTRACT:
A low oil lock-out and/or trip apparatus for a submersible transformer circuit breaker of the type having a manually operated crank shaft assembly for opening and closing the circuit breaker and a fault trip assembly for opening the circuit breaker under fault current conditions, the apparatus including a float assembly which is responsive to changes in oil level in said transformer and a rod carried by said float for blocking the movement of the crankshaft and a trip member for tripping the trip assembly when the oil level drops below a predetermined level in the transformer.

REFERENCES:
patent: 4435690 (1984-03-01), Link

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