Double-flow puffer-type compressed-gas circuit-interrupter

Details Double-flow puffer-type compressed-gas circuit-interrupter Double-flow puffer-type compressed-gas circuit-interrupter

1978-10-23

1981-06-30

Scott, James R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150G, H01H 3388

Patent

active

042764564

ABSTRACT:
An improved puffer-type, compressed-gas circuit-interrupter is provided having an improved double-flow operation, and improved cooling means for cooling the compressed gas prior to its ejection through the insulating movable nozzle and into the established arc. Additionally, the instant invention comprises the use of flexible movable arcing contact fingers with a surrounding cylindrical guide-valve sleeve to prevent premature leakage of compressed gas through the longitudinal finger slots provided in the movable arcing contact fingers during the opening operation. Such movable cylindrical guide-valve sleeve may be either insulating or metallic, as desired.

REFERENCES:
patent: 3786215 (1974-01-01), Mauthe
patent: 3814883 (1974-06-01), Milianowicz
patent: 3946183 (1976-03-01), Milianowicz
patent: 3984651 (1976-10-01), Lewis et al.
patent: 3987262 (1976-10-01), Rostron
patent: 4046978 (1977-09-01), Badon
patent: 4139753 (1979-02-01), Cromer et al.
patent: 4161636 (1979-07-01), Maier

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