Manual operation mechanism of outdoor permanent magnetic high-voltage vacuum circuit breaker

Abstract

The invention relates to a manual operation mechanism of an outdoor permanent magnetic high-voltage vacuum circuit breaker, which mainly solves the problem that the outdoor permanent magnetic high-voltage vacuum circuit breaker cannot be switched on when no operation power supply exists, and is characterized in that an energy storage torsional spring (7) is wound and an energy storage crank arm (8) is fixedly arranged at a part on a manual driving shaft (3) which corresponds to a movable trigger shaft (6); both ends of the movable trigger shaft (6) are clamped by an energy storage jaw (10), and a rotary manual driving shaft (12) enables the energy storage jaw (10) to rotate and is separated from the movable trigger shaft (6); and the movable trigger shaft (6) is arranged in an opening of a 'U'-shaped shift block (18). The manual operation mechanism can realize manual switch-on operation and manual switch-off operation when no operation power supply exists, the movable trigger shaft and an energy storage mechanism are ingeniously arranged, a manual switch-on operation mechanism and a manual switch-off operation mechanism are integrated, the mechanism is simplified, the power-on and power-off speed is totally met, the reliable operation of the circuit breaker can be ensured, and the power supply quality is improved.

Description

technical field [0001] The invention relates to an outdoor permanent magnet high-voltage vacuum circuit breaker, which belongs to a manual operating mechanism of the outdoor permanent magnet high-voltage vacuum circuit breaker. Background technique [0002] At present, outdoor permanent magnet high-voltage vacuum circuit breakers have the advantages of high reliability, long life, and maintenance-free, and have gradually replaced traditional high-voltage vacuum circuit breakers with electromagnetic mechanisms and spring mechanisms. The permanent magnet high-voltage vacuum circuit breaker applies permanent magnets to the operating mechanism, so that the moving contacts in the arc extinguishing chamber of the vacuum circuit breaker are kept in the opening position and closing position by permanent magnets, replacing the traditional locking device. This magnetic mechanism includes a permanent magnet, an opening control coil and a closing control coil, the mechanical transmissio...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the outdoor permanent magnet high-voltage vacuum circuit breaker cannot be closed when there is no operating power supply, the present invention provides a manual operating mechanism for the outdoor permanent magnet high-voltage vacuum circuit breaker. The closing operation can also be realized by manual opening operation. The movable dial shaft and energy storage mechanism are skillfully set up to realize the combination of the manual closing operation mechanism and the manual opening operation mechanism, which simplifies the mechanism and the movable dial shaft reaches a certain level. The stored energy is released instantaneously, which fully complies with the speed of electrical closing and electrical switching. When the control system fails, it can ensure the reliable operation of the circuit breaker and improve the quality of power supply.

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