Vacuum switch bulb type change over switch for on-load tap chang

Details Vacuum switch bulb type change over switch for on-load tap chang Vacuum switch bulb type change over switch for on-load tap chang

1994-11-30

1997-01-14

Gellner, Michael L.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Vacuum

200 11TC, 200400, H01H 3366

Patent

active

055942237

ABSTRACT:
A vacuum switch bulb type change over switch of the invention is used for an on-load tap changer for changing over from a tap to a tap in an on-load state. The change over switch is formed of a plurality of single phase switch cassettes, and a common controller for the switch cassettes. Each cassette includes a plurality of vacuum switch bulbs and a plurality of coupling devices for the vacuum switch bulbs. The common controller includes a plurality of holding devices for holding the vacuum switch bulbs in an opened or a closed state to thereby hold the taps in predetermined states. The single phase switch cassettes are independently mounted on and coupled with the common controller through the holding device.

REFERENCES:
patent: 3783206 (1974-01-01), Lingenfelter
patent: 3935407 (1976-01-01), Bleibtreu et al.
patent: 4220837 (1980-09-01), Bice
patent: 4520246 (1985-05-01), Yoshii et al.
patent: 5488212 (1996-01-01), Fukushi et al.

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