Fault indicator with push button reset

Details Fault indicator with push button reset Fault indicator with push button reset

G - Physics

08

B

116/78.6

G08B 21/00 (2006.01) H01H 71/04 (2006.01)

Patent

CA 1211004

FAULT INDICATOR WITH PUSH BUTTON RESET Edmund O. Schweitzer, Jr. Abstract of the Disclosure A fault indicator for indicating the occurrence of a fault current in an electrical conductor includes a rotatable indicator flag having fault-indicating and reset-indicating positions in response to applied magnetic fields. Upon occur- rence of a fault current the indicator flag is set to the fault- indicating position by a first magnetic field generated by cur- rent flow through the conductor. Upon termination of the fault current the flag indicator is manually reset to the reset-indi- cating position by a permanent magnet, which is user-displaceable from a magnetically shielded position within the indicator housing to a position in magnetic communication with the flag indicator.

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