Sensor-tripper apparatus for a circuit interrupter

Details Sensor-tripper apparatus for a circuit interrupter Sensor-tripper apparatus for a circuit interrupter

1987-08-31

1988-12-13

Broome, H.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335 37, 335170, H01H 7110

Patent

active

047913940

ABSTRACT:
A sensor-tripper apparatus for tripping the trip lever of a circuit interrupter in a power distribution circuit, the apparatus including a trip rod mounted in a tube and supported on a frame, a thermally responsive member having a predetermined curie temperature connected in the primary circuit, a magnet assembly mounted for axial movement on the tube and operatively connected to the trip rod, the magnet assembly being attracted to the thermally responsive member and holding a spring in compression whereby on release of the magnet assembly from the thermally responsive member the spring will move the magnet assembly and trip rod to trip the trip lever and a magnetic disk assembly operatively connected to the trip rod and being responsive to a high fault current in the primary circuit to move the trip rod independently of the magnet assembly to trip the trip lever.

REFERENCES:
patent: 4435690 (1984-03-01), Link et al.

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