Arc extinguishing system and circuit breaker
An arc extinguishing and arc extinguishing grid technology, applied in circuit breaker parts and other directions, can solve problems such as short circuit, failure of breaking test, poor insulation effect, etc.
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[0037] This embodiment provides a circuit breaker, which is equipped with an arc extinguishing system, including:
[0038] The contact device 1 includes a static contact 11 and a movable contact 12. The static contact 11 has a contact plate 2, a conductive frame 21 and a contact 22 connected in sequence, and the movable contact 12 can be in contact with or separated from the contact 22;
[0039] The arc extinguishing housing 3 has an arc extinguishing chamber 31 for inserting the moving contact 12, and an insulating assembly 4 for separating the conductive frame 21 from the moving contact 12, and the conductive frame 21 is arranged on the arc extinguishing outside the housing 3.
[0040] The above improvements are as follows: Figure 4 and Figure 5As shown: the static contact 11 includes a contact plate 2, a conductive frame 21 and a contact 22 connected in sequence, and the contact 22 is used to connect with the moving contact 12. The point 22 is contacted for electrifica...
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