Development and Tests of ZW-126/D2000-40 Vacuum Circuit Breakers with Controlled Switching Technology

作     者：Yu Tian Jiayuan Xu Yuan Deng Yongxing Wang Enyuan Dong Jiyan Zou Yu Tian;Jiayuan Xu;Yuan Deng;Yongxing Wang;Enyuan Dong;Jiyan Zou

作者机构：Dalian University of TechnologyDalian 116024China State Grid Pinggao GroupPingdingshan 467001China 

出 版 物：《CSEE Journal of Power and Energy Systems》 (中国电机工程学会电力与能源系统学报（英文）)

年 卷 期：2022年第8卷第1期

页      面：249-257页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：This work is supported by the National Natural Science Foundation of China(No.51877026 and No.51337001) the Science&Technology Project of SGCC(No.5229CG15003Q) 

主　　题：Controlled switching electro-magnetic force actuator(EMFA) single-break type test vacuum circuit breaker(VCB) 

摘      要：A ZW-126/D2000-40 type single-break vacuum circuit breaker(VCB)with controlled switching technology is designed and produced in this *** results of type tests based on IEC and GB standards are presented.A 126 kV singlebreak vacuum interrupter(VI)with 3/4 coil axial magnetic field(AMF)contacts is used in the VCB,which can interrupt short currents of 40 *** external insulation of the VI is provided by SF_(6) at 0.1 *** order to match the 126 kV single-break VI and controlled switching device,a long-stroke electro-magnetic force actuator(EMFA)with 16 kN closing holding force and 3.5 m/s average opening speed is ***,a position tracking controlled switching device based on closed-loop control using the technology of a fuzzy control algorithm and pulse width modulation is applied to the controlled switching *** device is applied to control the coil current of EMFA and the electromagnetic force,so as to control the EMFA to follow the ideal position *** type tests of 126 kV VCB are all passed according to the IEC62271-100 and GB1984-2014,including dielectric tests,basic short-circuit tests,shortline fault tests,out-of-phase tests,*** strong capacitive current breaking capacity and mechanical strength of the VCB are proved by the capacitive current switching test of class C2,electrical endurance test of class E2 and mechanical endurance test of class *** electromagnetic compatibility(EMC)tests are passed according to the *** controlled switching test of capacitive current was successful according to IEC62271-302 and GB/T30846-2014,and the controlled switching accuracy is less than±0.5 *** test results show that the VCB has excellent performance,which has broad application prospects in special occasions at a 126 kV voltage level,such as a switching capacitor and no-load transformer,etc.