Phase reversal switch mechanism

H - Electricity – 01 – H

Patent

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348/44

H01H 3/02 (2006.01) H01H 3/32 (2006.01) H01H 21/58 (2006.01)

Patent

CA 1160333

49,349 ABSTRACT OF THE DISCLOSURE Phase reversal switch apparatus for a three- phase high-current isolated phase bus circuit includes a non-reversing phase switch, and two groups of two revers- ing phase switches. The apparatus also includes a phase reversal mechanism having a rotatable operating shaft with a drive lever, a non-reversing lever, and two reversing levers coupled thereto. Locking and drive couplings are selectively engaged with the levers and operated by a shift actuator and a switch actuator to selectively oper- ate the non-reversing switch and the first and second reversing switches to effect a phase sequence reversing operation in a secure and efficient manner.

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