Gas-blast circuit breaker

Details Gas-blast circuit breaker Gas-blast circuit breaker

1987-12-07

1989-06-27

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3370

Patent

active

048431990

ABSTRACT:
A gas-blast circuit breaker has two switching elements disposed in a casing filled with arc-extinguishing gas and capable of being brought into or out of engagement with each other along one axis. One of these two switching elements defines an arc-extinguishing jet nozzle and can be guided during switching-off through a heating chamber. The heating chamber stores which is formed by heating up arc-extinguishing gas pressurized gas by means of a switching arc. When low currents are switched, a comparatively high pressure is built up in the heating chamber. On the other hand, a relatively low pressure develops during switching of large currents. This results from the inclusion in the second switching element of an insulation capping which extends around the outer surface and reaches to the front end face thereof, an arcing contact on its outer surface which receives the switching arc during the heating up phase of the switching process and also an arc-extinguishing contact which is separated from the arcing contact by the capping. The root point of the switching arc is commuted, shortly before the current to be switched off passes through zero, to the arc-extinguishing contact.

Affiliated with

Also associated with

Rating

Gas-blast circuit breaker does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gas-blast circuit breaker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas-blast circuit breaker will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-814974