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Partial discharge (PD) is triggered by insulation defects in a gas-insulated switchgear (GIS), leading to the decomposition of gas. The decomposition products of can be used to detect and recognize PD, but feature parameters must first be established. The main stable components of decomposition products are and . Their...
SF6 decomposition components have a close relationship with the insulation defects in GIS. And the inner insulation state could be evaluated by monitoring the internal gas decomposition components. Fourier transform infrared spectroscopy (FTIR) and gas chromatography (GC) were used to detect the SF6 partial discharge decomposition products. The sample interval was 12 hours, total discharge time was...
High Voltage Direct Current (HVDC) filter capacitor widely used in the high-voltage system, is the key component to high-voltage equipment. Meanwhile, as the important equipment of the DC transmission project, the insulation performance is directly related to the reliability of the entire DC transmission system. as there may be birth defects in the insulation performance of HVDC filter capacitor,...
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