High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – With capacitor
Patent
1995-09-11
1998-03-17
Gellner, Michael L.
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
With capacitor
218 77, H01H 3316
Patent
active
057289891
ABSTRACT:
An insulation gas filled circuit breaker in which a circuit breaking portion including two separably opposing contacts and a capacitor connected in parallel between the two contacts in the circuit breaking portion are disposed in a closed metal container filled with gas having an insulating property. A shield is provided at both the side of the capacitor facing the circuit breaking portion and the side of the capacitor facing the closed metal container for relaxing the electric field concentration near the capacitor. The top end of the shield is positioned so as to extend from the contacting face between the capacitor and an electrode pressing the capacitor toward the capacitor by a predetermined distance, whereby the dielectric strength of the capacitor connected in parallel with the circuit breaking portion is increased and a highly reliable and compact insulation gas filled circuit breaker of a high voltage and a large capacity use is provided.
REFERENCES:
patent: 3172980 (1965-03-01), Thommen
patent: 4810840 (1989-03-01), Okuno
patent: 5039831 (1991-08-01), Sato et al.
patent: 5298703 (1994-03-01), Yatsuzuka et al.
patent: 5451731 (1995-09-01), Yoshizumi et al.
Daimon Goro
Endo Fumihiro
Sugawara Takuya
Tsuchiya Kenji
Utsumi Tomoaki
Friedhofer Michael A.
Gellner Michael L.
Hitachi , Ltd.
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