Fault interrupter and load break switch

Details Fault interrupter and load break switch Fault interrupter and load break switch

2011-04-05

2011-04-05

Enad, Elvin G (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

C335S014000, C335S021000, C335S022000, C335S027000, C335S035000, C335S036000, C335S037000, C335S038000, C335S125000, C335S172000, C335S201000, C335S205000, C335S208000, C335S023000, C200S570000, C218S154000

Reexamination Certificate

active

07920037

ABSTRACT:
A fault interrupter and load break switch includes a trip assembly configured to automatically open a transformer circuit electrically coupled to stationary contacts of the switch upon the occurrence of a fault condition. The fault condition causes a Curie metal element electrically coupled to at least one of the stationary contacts to release a magnetic latch. The release causes a trip rotor of the trip assembly to rotate a rotor assembly. This rotation causes ends of a movable contact of the rotor assembly to electrically disengage the stationary contacts, thereby opening the circuit. The switch also includes a handle for manually opening and closing the electrical circuit in fault and non-fault conditions. Actuation of the handle coupled to the rotor assembly via a spring-loaded rotor causes the movable contact ends to selectively engage or disengage the stationary contacts.

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