摘要
为配合将来混合气体的工程应用,本文开发了一种252kV三相共箱主母线盆式绝缘子,介绍了其结构特点及技术参数,并通过有限元分析软件Ansys对其机械性能和绝缘性能进行了仿真计算分析。该盆式绝缘子理论水压破坏载荷值为3.53MPa,远大于3倍的设计压力值2.73MPa,满足机械性能要求;在1050kV雷电冲击耐受电压下,屏蔽罩最大电场强度值为22.485kV/mm,盆式绝缘子沿面最大电场强度值为11.371kV/mm,远小于其电场强度许用值,满足绝缘性能要求。该盆式绝缘子顺利通过了全套型式试验,验证了其机械性能和绝缘性能的高可靠性。
In order to cooperate with the engineering application of mixed gases in the future,a new 252kV three-phase in one tank type main bus basin-type insulator is developed,the structural characteristics and technical parameters of the basin-type insulator are introduced,and through the finite element analysis software Ansys,the mechanical performance and insulation performance are ensured by simulating calculate and analysis.The theoretical hydrostatic load value of the basin-type insulator is 3.53MPa,it is far more than three times design pressure value,meeting the mechanical performance requirement;with the lighting impulse withstand voltage 1050kV,the maximum electric field intensity value of shield is 22.485kV/mm,and the surface of basin-type insulator is 11.371kV/mm,it is far less than the allowable value of electric field intensity,meeting the insulation performance requirement.The basin-type insulator has passed all type test,verifying the high reliability of its mechanical and insulation performances.
作者
丁兆帅
Ding Zhaoshuai(New Northeast Electric Group High Voltage Switchgear Co.,Ltd,Shenyang 110027)
出处
《电气技术》
2020年第12期30-35,共6页
Electrical Engineering
关键词
盆式绝缘子
有限元
机械性能
绝缘性能
型式试验
basin-type insulator
finite element
mechanical performance
insulation performance
type test
