Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1975-06-27
1977-08-30
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200150G, H01H 3370
Patent
active
040456331
ABSTRACT:
A gas-blast interrupter of the puffer type comprises a piston positively connected to the movable contact rod of the interrupter and means defining a pumping space at one side of the piston containing gas compressed by piston motion during an opening operation. At the opposite side of the piston there is a working space in which compressed gas can act upon the piston to aid an opening operation. A blast passage is provided through which gas from the pumping space can flow into the arcing region. An auxiliary passage affords communication between this blast passage, and said working space.
Valve means effective during a low current interruption blocks flow through the auxiliary passage and allows free communication between the pumping space and the blast passage, whereby during a low current interruption, compressed gas from the pumping space can flow into the arcing region via the blast passage. The valve means is effective when pressure in the arcing region is high during high current interruptions: (i) to allow arcing products to flow through the auxiliary passage into the working space and (i.i.) to block free communication between the pumping space and the blast passage, thus decreasing contamination of gas in the pumping space and reducing pressure build-up therein.
REFERENCES:
patent: 2459599 (1949-01-01), Strom
patent: 3733452 (1973-05-01), Strippoli
patent: 3940583 (1976-02-01), Hertz
patent: 3941962 (1976-03-01), Thaler
Freedman William
General Electric Company
Macon Robert S.
LandOfFree
Gas-blast electric circuit interrupter of the puffer type 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 electric circuit interrupter of the puffer type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas-blast electric circuit interrupter of the puffer type will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-963577