GIS switchgear room environment intelligent wireless monitoring device

Abstract

The invention discloses an intelligent wireless monitoring device for a GIS switch room environment, which includes a monitoring host, an SF6 sensor, an O2 sensor, a temperature and humidity sensor, a PSoC on-chip chip, a radio frequency transmitter, a radio frequency receiver, a solenoid valve and an isolation drive device, and an SF6 sensor , the O2 sensor and the signal terminal of the temperature and humidity sensor are respectively connected to the PSoC on-chip chip through wires, the PSoC on-chip chip is connected to the radio frequency transmitter, and the radio frequency receiver is installed on the monitoring host. The transmitter is connected with the radio frequency receiver through the radio frequency signal. The invention can accurately measure the SF6 gas in the switch chamber, solve the influence of the ambient temperature on the measurement parameters, and can display the collected data information through the liquid crystal display, with small false alarm rate, high stability, unobvious frequency drift, simple structure, and easy to use. convenient.

Description

technical field [0001] The invention relates to the technical field of gas monitoring in a GIS switch room, in particular to an intelligent wireless monitoring device for the environment of a GIS switch room. Background technique [0002] With the continuous increase of social material demand and the continuous improvement of social productivity in our country, the requirements of national production and life for the national power transmission system are also getting higher and higher. When power resources are transmitted over long distances, in order to reduce energy consumption, high-voltage transmission methods must be used. In new high-voltage and ultra-high-voltage power grids, SF6 gas gradually replaces insulating media such as insulating oil and air due to its electrical insulation and high-efficiency arc extinguishing properties, and is used in high-voltage and ultra-high voltage power transmission and transformation equipment. High-voltage electrical equipment usi...

AI Technical Summary

Problems solved by technology

[0005] First, the gas pressure is reduced, resulting in a decrease in arc extinguishing and insulation performance;

[0006] Second, the moisture in the air will enter the equipment from the leak, causing the moisture content of the equipment to rise, causing accidents, and in severe cases, it will cause the circuit breaker to explode;

Even if the temperature is as high as 500°C, it will not decompose, but when it coexists with metal materials, it may decompose at 200°C. In addition, spark discharge and corona will also cause SF6 to decompose and release a variety of products, such as SF4, SF2, S2, F2, S, F, etc., such decomposition products often contain highly toxic, and even a small amount can cause harm to humans and animals;

[0008] Fourth, SF6 is heavier than air and is easy to accumulate in low places. When the concentration reaches a certain level, if the staff enters the room, it will cause brain hypoxia, suffocate people and cause major accidents;

[0009] Fifth, SF6 gas is one of the six major greenhouse gases. Excessive emissions will seriously damage the atmospheric ozone layer, increase the atmospheric greenhouse effect, and damage the ecological environment.

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