Intelligent non-electrical quantity protection control transmission terminal device of sealed high-voltage cabinet

Abstract

The invention discloses an intelligent non-electrical quantity protection control transmission terminal device of a sealed high-voltage cabinet. The intelligent non-electrical quantity protection control transmission terminal device comprises a sealed high-voltage cabinet body, an intelligent non-electrical quantity protection control transmission terminal is mounted on an instrument screen of thesealed high-voltage cabinet body, and a first fan, a first temperature sensor and a first humidity sensor are arranged at the top of a busbar chamber of the sealed high-voltage cabinet body. A secondtemperature sensor, a second humidity sensor, a light inductor and a smoke sensor are arranged at the top of a cable chamber of the sealed high-voltage cabinet body, a heater and a second fan are mounted on the side wall of the cable chamber, the signal output end of the first temperature sensor, the signal output end of the first humidity sensor, the signal output end of the second temperature sensor, the signal output end of the second humidity sensor, the signal output end of the light inductor and the signal output end of the smoke sensor are connected to the intelligent non-electrical quantity protection control transmission terminal, and the output end of the intelligent non-electrical quantity protection control transmission terminal is connected with the first fan, the second fanand the heater. According to the intelligent non-electrical quantity protection control transmission terminal device, safe and stable operation of equipment can be effectively guaranteed.

Description

Technical field [0001] The invention belongs to the technical field of power distribution equipment, and specifically relates to a closed high-voltage cabinet intelligent non-electrical quantity protection control transmission terminal device. Background technique [0002] The enclosed high-voltage switchgear includes instrument room, busbar room, cable room, switch room, etc. The cable room realizes the electrical connection between the cable and the switch lead wire, and the ventilation depends on the natural convection of the heat dissipation hole on the back plate. The busbar room and the adjacent interval realize the same space and are closed to the outside. The following problems exist in the prior art: [0003] 1. The busbar compartment is fixedly connected with the lead wire on the upper side of each partition switch in a row. When the load current is large, it will heat up. It is prohibited to open for viewing, measurement and heat removal during operation. Because the he...

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Problems solved by technology

[0003] 1. The busbar room is fixedly connected to the upper side lead wire of each interval switch in a row. When the load current is large, it will generate heat. It is forbidden to open it for viewing, measurement and heat removal during operation, because the heat point cannot be dissipated naturally in the sealed cabinet , when the heat is severe, the connector will turn red or even fuse, which will directly cause production accidents;

[0004] 2. The closed high-voltage cabinet cannot be opened during operation, and the temperature and humidity in the cabinet during operation cannot be monitored in real time, as well as various abnormal conditions, especially the busbar room and cable room. The surface of the busbar and insulators is rough and easy to accumulate dust , Moisture, and the dirt on the insulating components will form a dielectric film, and the leakage current will increase accordingly. Under severe weather conditions such as rain, fog and thunderstorms, accidents such as discharge grounding will be caused.

[0005] 3. During the operation of the closed high-voltage cabinet, if the air is humid and the surface of the conductive equipment is dusty, it is very easy to generate arc discharge, and the duty personnel cannot find the light and smoke of arc discharge through normal on-site duty in a short time. If the impedance value is too large, or the action cannot be performed due to other reasons, the high-voltage cabinet in this interval and the adjacent high-voltage cabinet will be burned until the high-voltage cabinet in the entire high-voltage room is completely burned.

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