According to electric field analysis of arcing structure

product application background and design experience

three design schemes of disconnector arcing structure are proposed. Based on multi-level fuzzy comprehensive evaluation method of fuzzy mathematics

multi-level evaluation index is established by accurately analyzing the mechanical characteristics

electrical characteristics and arcing process on the three schemes.Together evaluation results on each sub-factor in the evaluation index by the review team

weighing coefficients which belong to the influencing factors of arcing structure for GIS disconnector are determined by utilizing analytic hierarchiy process method

and then two-stage fuzzy comprehensive evaluation is made on various schemes with a weighted average type operator

the results show that the self-elastic arcing structure is the optimal design scheme. And according to the type test results of disconnecting switch breaking bus-transfer current

the rationality of the evaluation index and the fuzzy reliability of the evaluation results are verified

which will fill the blank of domestic literature on GIS disconnector arc structure analysis and demonstration

and provide a summary reference for arcing structure design and improving the success rate of breaking bus-transfer current.