Method and apparatus for testing spring powered switches

Details Method and apparatus for testing spring powered switches Method and apparatus for testing spring powered switches

G - Physics

01

R

G01R 31/327 (2006.01) H01H 9/00 (2006.01) H01H 11/00 (2006.01)

Patent

CA 2300321

Operation of a medium voltage spring powered circuit breaker is analyzed by determining the linear position of a selected driven part of the circuit breaker operating mechanism. When the charged closing springs of the operating mechanism are released, the selected driven part, such as a vacuum interrupter stem or push rod, moves to a new linear position as actuated by the release of the charged closing springs. Linkages are provided to the driven parts. LVDT sensors engage each of the linkages to determine the linear positions of the driven parts. A processing unit collects operation data for the operating mechanism when the charged closing springs are released to actuate and produce linear movement of the driven parts. The operation data includes a plurality of the linear positions of the driven parts. A microprocessor-based routine and interface outputs the operation data.

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