A high-voltage non-reignition vacuum circuit breaker

Abstract

The present invention discloses a high-voltage no-reignition vacuum circuit breaker which mainly solves the problems in the prior art that the time corresponding to an optimal arc extinguishing open distance at opening cannot be prolonged, the opening and closing output power is low, a main shaft swings and bends during a rotation process, etc. The vacuum circuit breaker comprises a supporting rack, an installing pedestal, an operating mechanism, a magnetic sleeve, a contact, an insulating pull rod and a vacuum arc-extinguishing chamber, wherein the operating mechanism also comprises an operating mechanism box, the main shaft, a reduction gearbox, an energy storage motor, an opening spring, a closing energy storage rod, a first closing spring, an auxiliary switch, an opening button, a closing button, an energy storage indicating part, a movable energy absorption limiting device, an overshoot adjusting pad, an energy storage limiting arm, an opening measure, a closing measure, a first closing energy storage connecting lever, a closing coil, an opening coil, a speed regulation device, a supporting bearing, a second closing energy storage connecting lever and a second closing spring.The high-voltage no-reignition vacuum circuit breaker of the present invention has the advantages of being simple in structure, large in output power, reliable in speed reduction and excellent in arcextinguishing performance, etc.

Description

technical field [0001] The invention relates to the technical field of vacuum circuit breakers, in particular to a high-voltage non-reignition vacuum circuit breaker. Background technique [0002] Vacuum circuit breaker is an electrical device used to open / close the electrical circuit in the power distribution network. When the electrical circuit fails, it can quickly and accurately cut off the faulty circuit to ensure the safe and stable operation of the power line. The vacuum circuit breaker mainly includes lead terminals, vacuum interrupter, magnetic bushing, operating mechanism, support frame, and installation base. Among them, the operating mechanism includes the operating mechanism box, energy storage motor, main shaft, reducer, opening spring, closing spring, opening coil, closing coil, opening control, closing control, auxiliary switch, opening button , Closing button, spindle linkage lever, etc. When the vacuum circuit breaker is opened, at the moment when the mov...

AI Technical Summary

Problems solved by technology

[0005] In view of the above shortcomings, the purpose of the present invention is to provide a high-voltage non-reignition vacuum circuit breaker, which mainly solves the problems in the prior art that the time corresponding to the optimal arc extinguishing opening distance cannot be extended, the operating output power is low, and the main shaft is in motion. There are problems such as swinging and bending during the process

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