Research on the Application of Sulfur Hexafluoride Decomposition Products in Circuit Breaker Fault Diagnosis
In the power system,sulfur hexafluoride(SF6)is widely used as an insulating gas due to its excellent insulation properties.However,SF6 can decompose under high-energy conditions such as arcs and discharges,generating various decomposition products.This study aims to diagnose potential faults in circuit breakers by analyzing the decomposition products of SF6.A high-precision gas chromatography-mass spectrometry(GC-MS)instrument is used to detect the decomposition products,and the relationship between the characteristics of the decomposition products and the types of circuit breaker faults is explored by combining practical circuit breaker fault cases.The results of this study not only improve the accuracy of circuit breaker fault diagnosis but also provide a scientific basis for the safe use of SF6.
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