Power use circuit breaker and electrical circuit arrangement...

Details Power use circuit breaker and electrical circuit arrangement... Power use circuit breaker and electrical circuit arrangement...

2005-01-04

2005-01-04

Enad, Elvin (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Resistance inserting

C218S002000, C361S058000

Reexamination Certificate

active

06838631

ABSTRACT:
A power use circuit breaker includes an arc generating switching unit which adds an electrical resistance in a circuit during current interruption to attenuate a current to be interrupted, a vacuum bulb which is electrically connected in series with the arc generating switching unit and interrupts the attenuated current and a current conducting switching unit connected in parallel with the series circuit of the vacuum bulb and the arc generating switching unit. For current conduction the current conducting switching unit is closed after the vacuum bulb and the arc generating switching unit are closed, and for current interruption after opening the current conducting switching unit, the vacuum bulb and the arc generating switching unit are opened.

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