| 摘要 |
PROBLEM TO BE SOLVED: To improve withstand voltage property by efficiently performing conditioning treatment. SOLUTION: This vacuum valve comprises a vacuum insulated container 1, a fixed side sealing fitting 2 sealed to one side of the vacuum insulated container 1; a fixed side current-carrying shaft 4 fixed penetrating the fixed side sealing fitting 2; a fixed side contact 5 and a movable side contact 6 freely contacting and separating; a fixed side electrode protective shield 10 provided to surround the fixed side contact 5; a movable side sealing fitting 3 sealed to the other side of the vacuum insulated container 1; a movable side current-carrying shaft 7 penetrating the movable side sealing fitting 3; a main bellows 8 mounted between the movable side current-carrying shaft 7 and movable side sealing fitting 3; and a movable side electrode protective shield 11 provided to surround the movable contact 6. An extensible outer bellows 20 is mounted between one side of the vacuum insulated container 1 and the fixed side sealing fitting 2 and/or between the other side of the vacuum insulated container 1 and the movable side sealing fitting 3. COPYRIGHT: (C)2007,JPO&INPIT
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