High-voltage gas-blast circuit-breaker

Details High-voltage gas-blast circuit-breaker High-voltage gas-blast circuit-breaker

1997-07-22

1998-09-15

Luebke, Renee S.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Air-current blowout

218 66, 218 59, H01H 3388

Patent

active

058082573

ABSTRACT:
A gas-blast gas-insulated high-voltage circuit-breaker comprises a fixed main contact, a fixed arc contact and a mobile assembly comprising a main contact, an arc contact and a compression volume cooperating with a fixed piston and communicating with a blast volume leading to a blast nozzle. The compression volume is provided with a valve preventing the gas passing from the blast volume to the compression volume. The piston comprises openings for evacuating the gas from the compression volume during tripping, these openings being closed between the start of compression of the compression volume and the closure of the valve and open upon closure of the valve.

REFERENCES:
patent: 4475018 (1984-10-01), Arimoto et al.

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