A protection type high and low voltage distribution cabinet and its protection method

Abstract

The invention discloses a protection type high and low voltage power distribution cabinet and a protection method thereof. The device includes a cabinet body, and a dehumidification mechanism is arranged at the bottom of the cabinet body. The dehumidification mechanism includes a movable bottom plate, a fixed column, an electric telescopic rod, Rubber air bag, soft air tube, through hole, humidity sensor switch, elastic metal rod, tooth slot, linkage rod, impact ball, annular rubber body, suction channel, suction hole, L-shaped connection cavity, first spring, iron block, electromagnetic Iron, movable push rod, stop, retract key switch, extend key switch and limit block. In the present invention, when the electrical components inside the cabinet have an insulation fault and leakage, which leads to the electrification of the side panels of the cabinet, the elastic rubber net is used to prevent external personnel from directly contacting the side panels of the cabinet and the danger of electric shock occurs, and when the elastic rubber net is squeezed , then push the insulating plate so that the positive and negative conductive sheets at the end contact the inner wall of the docking slot. As long as there is leakage, the signal light will light up, which is convenient for outsiders to know that the cabinet is live and there is danger.

Description

technical field [0001] The invention relates to the technical field of high and low voltage power distribution cabinets, in particular to a protection type high and low voltage power distribution cabinet and a protection method thereof. Background technique [0002] High and low voltage power distribution cabinets, as the name implies, are power distribution equipment used for power distribution, control, measurement and connection of cables in the power supply system. Generally, power supply bureaus and substations use high voltage power distribution cabinets, and then step down low voltage through transformers. The side leads to the low-voltage power distribution cabinet. [0003] The shortcomings of general high and low voltage power distribution cabinets are: although the cabinets of general high and low voltage power distribution cabinets have undergone some anti-corrosion and anti-rust treatments, they will gradually experience some rust in the open air environment for...

AI Technical Summary

Problems solved by technology

[0003] The shortcomings of general high and low voltage power distribution cabinets are: although the cabinet body of general high and low voltage power distribution cabinets has undergone some anti-corrosion and anti-rust treatments, it will gradually rust in the open environment for a long time, especially The bottom of the cabinet, generally the bottom of the cabinet is close to the ground, not ventilated, and is more susceptible to erosion by rain and moisture, and the general cabinet is made of some conductive metal materials, so it will be grounded to avoid leakage of internal components As a result, the cabinet body conducts electricity, thereby causing the risk of electric shock to personnel, but only relying on grounding treatment cannot fully guarantee safety. Once the grounding device is detached, the cabinet body will conduct electricity due to leakage of internal components, and people in contact will be in danger. When the components in the cabinet burn, the relevant personnel directly use the foam fire extinguisher to flush the inside of the cabinet, which will cause all the components to be affected by the foam, and cause the unburned components to be damaged due to fire extinguishing treatment

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