宋永佳,全杰雄,温才权,禤海贞,吴科,周凯.铜屏蔽层绕制方式对绝缘管母安全运行影响的研究[J].电测与仪表,2017,54(1):. SONG Yongjia,QUAN Jiexiong,WEN Caiquan,XUAN Haizhen,WU Ke,ZHOU Kai.Research on Copper Shield Wingding Manner to the Influence of Pipe Type Busbar Safety Operation[J].Electrical Measurement & Instrumentation,2017,54(1):.
铜屏蔽层绕制方式对绝缘管母安全运行影响的研究
Research on Copper Shield Wingding Manner to the Influence of Pipe Type Busbar Safety Operation
In order to investigate the influence of copper shield to the safety operation of pipe type busbar. This paper focused on 35kV AC sides the busbar insulation burned down case in a 110kV substation. According to the imaging of the breakdown point, the finite element simulation of the busbar was used to analysis the potential distribution of the semiconducting layer, current density and resistance loss density under copper shield wrapped and stacked way. The results show that the potential distribution, current density and resistance loss density are significantly difference. The potential in the copper shield is high, the semiconducting layer surface current and resistance heating power density is large, there exist a obvious hot point when the copper shied is wrapped. The potential, the semiconducting layer surface current and resistance heating power density is close to zero, and there is no obvious hot point when the copper shied is stacked. These features may improve the wingding way of the copper shield and provide a theoretical basis for the actual production work.
