A Reliable Arc Extinguishing System for Non-polar High Voltage DC Contactor
A high-voltage DC, contactor technology, applied in relays, electromagnetic relays, electromagnetic relay details, etc., can solve the problems of inability to withstand reverse current switching, low switching life, etc., to achieve compact structure, reliable arc extinguishing, and small damage Effect
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[0030] see figure 1 , figure 2 As shown, a reliable arc-extinguishing non-polar high-voltage DC contactor arc-extinguishing system of the present invention includes a sealed contact chamber 1 and two permanent magnets 2 of a contactor; Two static contacts 3 and two normally open movable contacts 4 are installed in the activity, and the two movable contacts 4 and the two static contacts 3 are matched vertically respectively. In this embodiment, the two movable contacts The points are connected together to form a bridge-type moving contact piece. Of course, the two moving contacts can also be a split structure; the two permanent magnets 2 are respectively installed on the extension line side of the two static contact lines, that is, two The permanent magnet 2 is installed symmetrically on both sides of the area between the two static contacts. In this embodiment, two permanent magnets are used. Of course, it is also possible to arrange more permanent magnets on both sides of t...
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