Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1975-09-04
1978-01-10
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200144AP, H01H 3322, H01H 3316
Patent
active
040681084
ABSTRACT:
An enclosed high voltage circuit breaker with a sulphur hexafluoride insulating and arc-extinguishing medium includes breaking gaps arranged in a high-pressure chamber which, during breaking is put into communication with a low-pressure chamber through blast valves. A closing resistor is connected in series at each end with a contact device which, upon closing, connects the resistor in parallel with the main breaking gaps before they are closed. The resistor contact device is arranged in the high-pressure chamber while the closing resistor is arranged in a separate tank substantially entirely separated from the low-pressure chamber.
REFERENCES:
patent: 2921168 (1960-01-01), Forwald
patent: 3275778 (1966-09-01), Morioka
Berneryd Sten
Grune Per-Olof
ASEA Aktiebolag
Macon Robert S.
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