H - Electricity – 02 – H
Patent
H - Electricity
02
H
348/20
H02H 3/16 (2006.01) H01H 83/14 (2006.01) H01H 83/20 (2006.01) H02H 3/33 (2006.01)
Patent
CA 1160725
Boltswitch 80128 LOAD BREAK SWITCH WITH BUILT-IN GROUND FAULT SENSING Abstract of the Disclosure A plural phase high current low voltage load break switch with built-in ground fault sensing comprises an insulator base and a plurality of individual phase circuits mounted on and extending across the base in parallel spaced relation to each other, each phase circuit including, in series, an input connector, a fixed switch contact, a movable switch contact, a fuse, and an output conductor; a neutral conductor is mounted on and extends across the base in parallel spaced relation to the phase circuits. A switch operator mechanism mounted on the base is connected to all of the movable switch contacts for opening and closing these contacts simultaneously; that mechanism includes an electri- cally operated trip actuator for actuating the operator mechanism to open the switch contacts. A zero sequence ground fault sensor coil is disposed in encompassing relation to all of the phase circuits and the neutral conductor; the sensor coil is aligned with the movable switch contacts. A control relay is electrically connected to the ground fault sensor coil and to the trip actuator for energizing the trip actuator in response to the sensing of a ground fault condition by the sensor coil.
408803
Boltswitch Inc.
Macrae & Co.
LandOfFree
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