FAULT INDICATOR WITH PUSH BUTTON RESET

摘要

FAULT INDICATOR WITH PUSH BUTTON RESET Edmund O. Schweitzer, Jr. 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 occurrence of a fault current the indicator flag is set to the faultindicating position by a first magnetic field generated by current 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.