Switching apparatus protected against short circuit currents

Details Switching apparatus protected against short circuit currents Switching apparatus protected against short circuit currents

1986-05-06

1988-03-22

Goldberg, E. A.

Electricity: circuit makers and breakers

Liquid contact

Time delay

361 13, 200151, H01H 930, H01H 3300

Patent

active

047330317

ABSTRACT:
A contactor apparatus is provided protected against short circuit currents, comprising for each phase between input and output terminals a contactor switch and a protective switch with automatic opening, a transfer electrode being placed close to the contacts of this second switch for shunting into a parallel circuit a considerable fraction of the fault currents.

REFERENCES:
patent: 4550356 (1985-10-01), Takahashi
patent: 4562323 (1985-12-01), Belbel

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