Switchboard drawout having trip interlock and position...

Details Switchboard drawout having trip interlock and position... Switchboard drawout having trip interlock and position...

H - Electricity

02

B

306/276

H02B 11/14 (1980.01)

Patent

CA 1072163

41DA-3025 ABSTRACT OF THE DISCLOSURE Drawout apparatus includes a carriage mounting a circuit breaker and supported on telescoping rails to facilitate racking movement of the circuit breaker between extreme positions of electrical engagement and disengagement with respect to switchboard primary terminals. Racking move- ment into the engaged position from an intermediate test position is mechanically assisted by a racking mechanism. While in the engaged position, a joint clamping mechanism is operated to perfect plural breaker-switchboard terminal joints. A trip interlock insures that the circuit breaker can only be closed while in the test position and in the engaged position with terminal joints clamped. Display apparatus indicates the various circuit breaker positions and the clamped condition of the terminal joints.

281225

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