7SHIBA Y, NAOTAKA I, ICHIKAWA H, et al. Withstand voltage characteristics of two series vacuum interrupters[J]. IEEE Transactions on Plasma Science,2007,35(4):879-884.
8FUGEL T, KOENING D. Influence of grading capacitors on the breaking performance of a 24 kV vacuum breaker series design [J]. IEEE Transactions on Dielectric and Electrical Insulation, 2003,10(4) : 569-575.
9BETZ T, KOENING D. Influence of grading capacitors on the breaking capacity of two vacuum interrupters in series [C]// Proceedings of 18th Int. Symp. on Discharges and Electrical Insulation in Vacuum,Eindhoven, Holland: [s. n.], 1998:231-238.