Complete set of power distribution device

Abstract

The invention belongs to the field of power distribution devices and specifically discloses a complete power distribution device, comprising a cabinet frame and a bus bar compartment, a cable compartment, a circuit breaker compartment and a control compartment, which are disposed in the cabinet frame and formed by metal partition boards. The circuit breaker compartment is provided with a built-incircuit breaker, and the circuit breaker is equipped with an axially fixedly connected vacuum bubble, an insulating cylinder, an electromagnetic actuator and an anti-ballistic device. The anti-ballistic device comprises a cylinder body and a piston built in the cylinder body; the side wall of the cylinder body is provided with a drainage device, a damping device and a drainage hole for connectingthe drainage device, the damping device and a rodless cavity. When the power distribution device is switched on, the anti-ballistic device absorbs part of the energy of a moving contact of the circuitbreaker before switch-on, and the piston acts to the drainage device to trigger the drainage device to drain, and the driving force for driving the moving contact to reversely bounce after being switched on is eliminated; the damping device allows a damping medium to flow into a rod cavity only through a damping hole in the piston, and the anti-ballistic device absorbs the energy of reverse bounce of the moving contact, thereby effectively suppressing the occurrence of switch-on bounce of the moving contact and avoiding the occurrence of switch-on bounce arcing.

Description

technical field [0001] The invention relates to a power distribution device, in particular to a complete power distribution device, which belongs to the field of electric equipment. Background technique [0002] Complete sets of power distribution devices, also known as complete sets of switches and switchgears, are widely used in power plants, petroleum, chemical industry, metallurgy, textiles, high-rise buildings and other industries for power transmission, distribution and power conversion. The complete power distribution device has a built-in circuit breaker for controlling the on and off of the primary circuit. During the application of the complete power distribution device, when the power distribution device is closed, the circuit breaker often bounces on closing, and the bouncing stroke is relatively large, resulting in a closing bounce and arcing between the moving contact and the static contact of the circuit breaker. Ablation makes the moving contacts and static ...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a complete set of power distribution device to solve the technical problem that the complete set of power distribution device in the prior art is prone to closing bounce arcing when closing, and absorb the energy of the moving contact of the circuit breaker by setting the bulletproof device , suppress the closing bounce of the moving contact of the circuit breaker, and avoid the occurrence of closing bounce and arcing

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