Cable Pipeline Detector Trial - Yangzhou Darui
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The SF6 insulating gas in GIS equipment, under discharge effects such as arcs and sparks, undergoes chemical decomposition reactions with insulating materials, generating metal fluorides, solid and gaseous fluorine compounds. Through research on simulating partial discharge faults in 110kV gas-insulated fully enclosed combined electrical equipment, it has been shown that under partial discharge, electrode materials, discharge intensity, gas humidity, and adsorbents significantly affect the decomposition products of SF6 gas. By monitoring the decomposition products, the insulation status of the equipment can be known in advance, and faulty gas chambers can be accurately located, allowing for isolation treatment, enabling the rest of the equipment to quickly resume operation, avoiding huge economic losses caused by large-scale power outages. Therefore, monitoring SF6 gas decomposition products has become an effective technical guarantee for the safe and reliable operation of power grids.
Wuhan Guodian Xigao Electric Co., Ltd. professionally produces the GDJF-311M type SF6 gas decomposition product tester, which uses fully imported high-precision sensors, comes with a self-calibration function, and the detection data of decomposition products is stable and reliable throughout the year. It uses an oil-free stainless steel regulating valve to ensure the accuracy of detection values, and adopts self-developed advanced software algorithms to enhance the testing accuracy of imported sensors. Additionally, it provides a high-power lithium battery power system, enabling dual AC/DC power supply. Without the need for on-site AC power, the lithium battery can sustain continuous operation without an external power source.
