期刊论文

Lightning Overvoltage Protection Based on 10/0.4 Type Transformer Low Voltage Side

中文

电瓷避雷器

1003-8337

2015

6

80-83+87

10.16188/j.isa.1003-8337.2015.06.016

本校为第一机构

针对雷击10/0.4型配电变压器高压侧输电线路,在配电变压器低压侧产生很高的感应过电压,对低压设备产生绝缘损害.由于低压侧直接与用户连接,消减这个感应过电压至关重要.笔者提出采用双曲折特种防雷变压器和在变压器低压侧外加并联电容器的措施,来降低低压侧的过电压,并采用ATP-EMTP对外加电容法进行仿真对比,验证其可行性,并列出最佳外加电容值为3×12.5 μF.

lines, which Based on lightning strike 10/0.4 type distribution transformer high-voltage transmission produce in the low voltage side of distribution transformer high induced overvohage, insulation damage on low voltage equipment. Because of the low voltage side directly connected to the user, to reduce the induced overvoltagc is crucial. The author puts forward special lightning protection with double winding transformer and measures in the low voltage side of transformer and shunt capacitors, to reduce the low voltage side of overvohage; base...