Fault indicator with push button reset

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

1983-03-10

1985-08-20

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

340659, 324133, G08B 2100

Patent

active

045367582

ABSTRACT:
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 fault-indicating 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-indicating 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.

REFERENCES:
patent: 3413548 (1968-11-01), Schweitzer, Jr.
patent: 3996881 (1976-12-01), Schneider
patent: 4375617 (1983-03-01), Schweitzer, Jr.

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