Permanent magnet linear thrust operating mechanism used for vacuum circuit breaker
A technology of vacuum circuit breaker and permanent magnet straight line, which is applied to high-voltage air circuit breaker, electromagnet with armature, circuit, etc. Controllable process, improved breaking and closing performance, simple and reliable structure
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[0020] The present invention will be further described below in conjunction with accompanying drawing:
[0021] For the 40.5kV indoor vacuum circuit breaker, according to the requirements of the arc extinguishing chamber for the operating mechanism, a permanent magnet linear thrust operating mechanism for vacuum circuit breakers is designed, and the electromagnetic thrust provided by the permanent magnet linear thrust operating mechanism is required to reach 3000~ 4000N, the movement speed can reach more than 4~6m / s, and the running time should be less than 40ms.
[0022] Such as figure 1 Shown is a schematic structural diagram of a permanent magnet linear thrust operating mechanism for a vacuum circuit breaker according to an embodiment of the present invention. The transmission rod 14 of the permanent magnet linear thrust operating mechanism 1 is connected to the The moving contact 9 is connected, and the four connecting rods are composed of the operating rod 2, the main sh...
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