Self extinguishing type gas circuit breaker

Electricity: circuit makers and breakers – Liquid contact – Time delay

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

200148R, H01H 3388

Patent

active

044594470

ABSTRACT:
A self extinguishing type gas circuit breaker includes a body member having a first end connected to a terminal plate and a second end with a nozzle formed of electrical insulation material and defining a nozzle opening in communication with the interior of the body member. The interior of the body member includes an arcing chamber adjacent the nozzle and a gas storage chamber, such chambers being filled with an arc extinguishing gas. A stationary arc contact is electrcially connected to the terminal plate and is positioned within the body member at a location confronting the nozzle opening. A movable arc contact is mounted for movement through the nozzle opening between a circuit breaker closed position, whereat the movable arc contact extends through the nozzle into closed circuit contact with the stationary arc contact, and a circuit breaker open position, whereat the movable arc contact is spaced outwardly from the nozzle. Outward movement of the movable arc contact from the closed position to the open position during application of an arcing current between the stationary and movable arc contacts creates an arc. The energy of this arc increases the pressure of the arc extinguishing gas in the arcing chamber and then in the gas storage chamber. Partitions divide the gas storage chamber into a plurality of sub-chambers. A valve is positioned between the arcing chamber and at least some of the outlets of the sub-chambers and is mounted for movement away from the arcing chamber in response to the increase in pressure of the gas therein. The valve connects the arcing chamber with a number of the sub-chambers sufficient to ensure that, dependent on the relative level of the arcing current and the pressure in the arcing chamber, the pressure of the gas stored in such number of sub-chambers will achieve extinction of the arc.

REFERENCES:
patent: 4139752 (1979-02-01), Itai et al.
patent: 4182942 (1980-01-01), Koyanagi et al.
patent: 4228332 (1980-10-01), Ibuki
patent: 4270034 (1981-05-01), Kii
patent: 4381436 (1983-04-01), Nagaoka et al.
patent: 4383152 (1983-05-01), Koppl et al.
1981 IEEE (81 WM 149-4), Self-Flow Generation Phenomena in a Gas Circuit Breaker Without Puffer Action, by Y. Ueda et al., 8 pages long.
1981 IEEE (81 WM 150-2), Self-Interruption by a Gas Circuit Breaker Without Puffer Action, by T. Ushio et al., 8 pages long.
1981 IEEE (81 SM 413-4), An Improvement of Low Current Interrupting Capability in Self-Interruption GCB, by Y. Murai et al., 5 pages long.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Self extinguishing type gas 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 Self extinguishing type gas circuit breaker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self extinguishing type gas circuit breaker will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1577518

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.