| 摘要 |
FIELD: electricity.SUBSTANCE: gas interrupter of a circuit includes a fixed part, a movable part, a piston and a double compression mechanism. The fixed part comprises a fixed arc-quenching contact and the first fixed closer. The movable part comprises a movable arc-quenching contact, which selectively contacts with the fixed arc-quenching contact, a cylinder, where the movable arc-quenching contact is located, and the second fixed closer, which guides motion of the cylinder. The piston is arranged in the second fixed closer. The double compression mechanism is made to move the piston in direction opposite to the direction of movable part motion, when the movable part moves to separate the fixed arc-quenching contact and the movable arc-quenching contact for interruption of the damage current.EFFECT: reduced energy required to perform an operation of damage current interruption.11 cl, 5 dwg |
