Vacuum interrupter, vacuum interrupter contact and DC vacuum circuit breaker
A vacuum interrupter and vacuum circuit breaker technology, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve the problems of high cost and inability to break the faulty DC current, and achieve low cost, simple structure, small size effect
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[0025] An embodiment of the DC vacuum circuit breaker in the present invention, for example Figure 1~Figure 2 As shown, it includes the main body, the vacuum interrupter 1 and the operating mechanism. The vacuum interrupter 1 is provided with a static contact 4 and a moving contact 7, the static contact 4 is connected with the static conductive rod 3, the movable contact 7 is connected with the copper bar 9 and the movable conductive rod 10, and is driven by the insulating rod 11 The connection can realize opening and closing through the movement of the insulating pull rod 11 driven by the operating mechanism.
[0026] The upper end surface of the moving contact 7 facing the static contact 4 is provided with an arc extinguishing grid 6, and the arc extinguishing grid 6 is erected on the moving contact 7, perpendicular to the end face of the moving contact 7, and the extending direction is along the diameter of the contact. to extend. Each arc extinguishing grid piece 6 is e...
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