Circuit breaker and solid-sealed pole thereof
A technology for solid-sealing poles and assembly holes, which is applied to high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problems of contact surface wear, affecting the current conductivity performance of solid-sealing poles, and reducing the reliability of conductive contacts.
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[0020] The embodiment of the circuit breaker in the present invention: figure 1 with figure 2 As shown, the circuit breaker is a DC vacuum circuit breaker, which includes an operating mechanism and a number of solid-sealed poles connected by transmission on its output end. Each solid-sealed pole includes a housing 4 and its interior is electrically conductive from top to bottom. The upper outlet line 1, the vacuum interrupter 2, the lower outlet line 6 are connected. The lower end of the vacuum interrupter 2 is provided with a vertically extending movable end conductive rod 8. The movable end conductive rod 8 moves up and down and is installed on the lower outlet line 6. In the opening up and down extension assembly holes, the bottom of the hole wall of the assembly hole is a tapered hole section that gradually increases from top to bottom. In the tapered hole section, a conductive sleeve sleeved on the outer periphery of the conductive rod 8 of the moving end is fixed through ...
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