Mining flameproof permanent-magnet type high-voltage vacuum distribution device

Abstract

The invention discloses a mining flameproof permanent-magnet type high-voltage vacuum distribution device which comprises a base and a flameproof shell. The flameproof shell is internally provided with a front cavity and a rear cavity which is provided with an upper chamber and a lower chamber, a movement car is arranged in the front cavity, and a permanent-magnet vacuum circuit breaker, a voltage transformer, a current transformer, an intelligent measurement and control unit (microcomputer integrated protection device), a piezoresistor and an isolating-bolt moving contact are connected on the movement car; the movement car moves in and out by adopting a manual driving mode of a rack and a gear in an engaged manner, and an auxiliary guide rail of the movement car is mounted by adopting a foldable structure. The mining flameproof permanent-magnet type high-voltage vacuum distribution device is small in size, light in weight, compact and reasonable in structure, visual and simple in operation and convenient to maintain and overhaul; an advanced and perfect microcomputer integrated protection system is simple and visual, and guaranteeing of long-term memory function can be achieved; adjustment of protection parameters can be performed with no need of opening a door of a box body, so that convenience is brought to operation, and reliability of bulk supply is improved.

Description

Technical field [0001] The invention belongs to the technical field of explosion-proof equipment for mines, and particularly relates to an explosion-proof permanent magnet type high-voltage vacuum power distribution device for mines. Background technique [0002] The explosion-proof high-voltage vacuum power distribution device for mines is mainly used for power transmission and cut-off of the underground power supply system of coal mines. It mainly includes an explosion-proof enclosure with an explosion-proof cavity, a box door, and a circuit breaker set in the explosion-proof cavity , Current, voltage transformers and control components and other electrical components. The electrical components of the existing explosion-proof vacuum power distribution device for mines are integrally installed at the bottom of the explosion-proof cavity, so that the explosion-proof enclosure needs a large volume and the space utilization rate is low. The electrical components are connected to ea...

AI Technical Summary

Problems solved by technology

The electrical components of the existing explosion-proof vacuum power distribution device for mines are integrally installed at the bottom of the explosion-proof chamber, resulting in a large volume of the explosion-proof enclosure and low space utilization. Realize the electrical performance inside the switch, the electrical layout inside the explosion-proof chamber is complicated, the wiring is messy, the electrical performance is unstable, there are potential safety hazards, and the repair and maintenance work is also quite troublesome

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