Contact system capable of automatically change-over switching electric appliance
An automatic transfer switch, contact system technology, applied in electrical switches, high-voltage/high-current switches, contacts, etc., can solve the problem that the contacts cannot resist arc burning, movement, poor thermal stability, and it is difficult to achieve short-term tolerance. and other problems, to achieve the effect of improving short-time tolerance, high making and breaking capacity
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[0015] The contact system of the automatic transfer switch appliance provided by the present invention will be described in detail below with reference to the drawings and specific embodiments.
[0016] As shown in Figures 1 to 6, the contact system of the automatic transfer switching device provided by the present invention includes a housing 1, a moving contact assembly 2, a static contact assembly 3 and an arc extinguishing chamber 4; wherein the housing 1 is in the shape of a flat cuboid, The central part of one side is recessed to form a moving contact assembly setting hole 5, and the two ends of the side are recessed to form static contact assembly setting holes 6, 6' communicating with the moving contact assembly setting hole 5; The central part of the head assembly 3 is formed with a central hole 7 that can be connected with the output shaft of the power source, so that it can be rotated in the hole 5 of the movable contact assembly. The static contact assembly is prov...
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