Transfer switch

Details Transfer switch Transfer switch

H - Electricity

02

J

348/17, 306/278

H02J 9/00 (2006.01) H01H 9/26 (2006.01) H01H 3/26 (2006.01) H01H 3/46 (2006.01)

Patent

CA 1278367

TRANSFER SWITCH ABSTRACT OF THE DISCLOSURE The transfer switch assembly typically automatically transfers electrical loads from a normal electrical power source to an emergency electrical power source upon reduction or loss of normal power source voltage. It can also automatically re-transfer the load to the normal power source when the normal voltage has been restored within acceptable limits. The device includes a rotor and couplers for cooperating with switch toggles of circuit breakers to actuate the circuit breakers. First and second links connect the rotor to the couplers. The links have outer ends connected to the couplers, and inner ends hingedly connected to the rotor at positions spaced circumferentially apart relative to the rotor axis. In this way, rotation of the rotor means in one direction moves the couplers to open one circuit breaker and, after a short period of time, to close the remaining circuit breaker so that one circuit breaker opens prior to closing the other circuit breaker. The transfer switch can also be actuated manually.

554991

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