Oblon, McClelland & Maier & Neustadt, L.L.P.
Gas circuit breaker
A pair of fixed arc electrodes are arranged facing each other within a sealed container that is filled with arc-extinguishing gas 1. There are provided: a compression puffer chamber for accumulating pressurized gas that is obtained by elevating the pressure of the arc-extinguishing gas; and an insulated nozzle that directs the pressurized gas towards the arc discharge from the compression puffer chamber. A buffer chamber is provided, in which hot exhaust gas generated by the heat of the arc discharge is temporarily accumulated. A pressurized gas through-flow space is provided, communicating with the compression puffer chamber. In the pressurized gas through-flow space, an opening/closing section prevents inflow of hot exhaust gas by assuming a closed condition during the earlier half of the current interruption period, and in the latter half of the current interruption period the opening/closing section 41 is opened to allow flow of pressurized gas.
Kabushiki Kaisha Toshiba
H H H H H H H H
H01H H01H H01H H01H H01H H01H H01H H01H
additional inventional additional inventional additional inventional additional additional
Takeshi Tadashi Takanori Hiroshi Tadashi Toshiyuki Norimitsu
Shinkai Koshizuka Iijima Furuta Mori Uchii Kato