High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Air-current blowout
Patent
1993-10-14
1995-06-13
Scott, J. R.
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Air-current blowout
218143, 218 84, H01H 3316
Patent
active
054245044
ABSTRACT:
A resistor-provided UHV breaker has a tank sealing an insulating gas therein, a main contact unit located in the tank, a resistor unit connected parallel to the main contact unit, a resistor contact unit located in the tank, a main contact making/breaking unit for making and breaking the main contact unit, and a resistor contact making/breaking unit for making and breaking the resistor contact unit. Further, the breaker has a coupling unit for coupling the main contact making/breaking unit with the resistor contact making/breaking unit. The coupling unit drives the main contact making/breaking unit together with the resistor contact making/breaking unit during closing operation of the main contact unit, and drives the main contact making/breaking unit and the resistor contact making/breaking unit, independently, during breaking operation of the main contact unit.
REFERENCES:
patent: 3482069 (1969-12-01), Badey et al.
patent: 3763340 (1973-10-01), Noack
patent: 4195211 (1980-03-01), Asian et al.
patent: 4419552 (1983-12-01), Haginomori
patent: 4499350 (1985-02-01), Hidaka
Nishizumi Shigeki
Tanaka Tsutomu
Kabushiki Kaisha Toshiba
Scott J. R.
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