What are the dangers of SF6 gas water exceeding the standard?- SF6在线监测系统_SF6检漏仪_SF6传感器_SF6密度继电器

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What are the dangers of SF6 gas water exceeding the standard?

发布时间：2016-07-12 来源：ydlcb 浏览次数：31次

Under normal conditions, SF6 gas is colorless and odorless, has good insulation performance and arc extinguishing performance, once the water in the atmosphere is immersed or the surface of the solid medium is damp, the electrical strength will be significantly reduced. Circuit breakers are outdoor equipment, when the temperature plummets, SF6 gas excess water may condense on the surface of the solid medium and flashover, causing the circuit breaker to explode in serious cases. Pure SF6 gas, in operation, after arc discharge or high temperature, will be decomposed into monomer fluorine, sulfur and fluorine sulfur compounds, after the arc disappeared will be combined into stable SF6 gas. When the gas contains water, the fluorine sulfur compounds will react with water to form highly corrosive hydrofluoric acid, sulfuric acid and other highly toxic chemicals, endangering the life safety of maintenance personnel, causing corrosion to the insulation material or metal material of the circuit breaker, causing insulation deterioration, and even equipment explosion. It is impossible to completely remove the water of SF6 gas in the SF6 circuit breaker, but to master the reasons for the excessive water of SF6 gas, take corresponding preventive and control measures to reduce the water in SF6 gas, can ensure and improve the safe operation reliability of the circuit breaker. Therefore, the general combined electrical equipment adopts SG6 density micro-water online monitoring system to monitor the moisture and pressure values in the equipment.

SF6 density micro-water online monitoring system can make it more convenient for users to access and understand the operation status of each substation anytime and anywhere. Maintenance personnel can clearly know what they need and how to do it. At the heart of all this technology is the DRYCAP® based micro-water measurement analysis algorithm and the digital SF6 gas density monitoring technology. The expert diagnosis system is formed by combining digital processing technology (DSP) and real-time database technology. It ensures that the change of dynamic digital pressure and micro-water monitoring data can accurately reflect the deterioration trend of gas quality inside the switch, and provide a scientific basis for users to provide state preventive maintenance.