Circuit breaker current limiting arc runner

Details Circuit breaker current limiting arc runner Circuit breaker current limiting arc runner

1997-02-10

1999-03-02

Friedhofer, Michael A.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Arc runner

218 36, H01H 3320

Patent

active

058774670

ABSTRACT:
A circuit breaker is equipped with a current limiting arc runner for effective overcurrent interruption without additional heating under quiescent operating conditions. Upon contact separation, an arc is drawn with the endpoints of the arc being initially rooted on the set of open contacts. Further opening of the contacts commutates the arc onto the current limiting arc runner to suppress the circuit current.

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