Interlock for circuit breakers

Details Interlock for circuit breakers Interlock for circuit breakers

1975-10-10

1977-08-09

Scott, James R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200153R, H01H 920, H01H 320

Patent

active

040412601

ABSTRACT:
A circuit breaker of a medium voltage roll-in type is connected to an external control system by a plug and associated conductor line. The plug has a handle that is screwed into position to retain the plug in place and to compress a cable spring connected to a flexible cable enclosed in a tube. The compression of the cable spring enables a lever spring, acting oppositely to the cable spring, to move a lever attached to the cable. The lever is connected to move a trip latch that connects to a latch mechanism that opens and prevents closing of the circuit breaker.

REFERENCES:
patent: 1971990 (1934-08-01), Reynolds et al.
patent: 2545965 (1951-03-01), McCamon
patent: 3598941 (1971-08-01), Nelson

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