Iet Science Measurement & Technology

The decomposition component analysis method can be used to monitor and diagnose the insulation state of SF 6 electrical equipment in power industry. Here, the authors firstly compared the advantages and disadvantages of various SF 6 decomposition products detection methods and analysed their feasibility of online monitoring. Then the requirements of SF 6 decomposition products online detecting technology according to the actual engineering needs were discussed. The SF 6 decomposition products online detection system has been mainly introduced from the aspects of principle, structure, detection effect, and practicability. The research points and development tendency of SF 6 decomposition products online detection system is forecasted.

Online detection technology for SF 6 decomposition products in electrical equipment: a review