“U”形双层低压绕组的应用及雷电冲击特性  

Application and Lightning Impulse Characteristics of U-Type Double-Layer Low-Voltage Winding

作　　者：陈磊 张亚杰[2] CHEN Lei;ZHANG Ya-jie(Guangxi Liuzhou Special Transformer Co.,Ltd.,Liuzhou 545006,China;Baoding Tianwei Group Tebian Electric Co.,Ltd.,Baoding 071056,China)

机构地区：[1]广西柳州特种变压器有限责任公司,广西柳州545006 [2]保定天威集团特变电气有限公司,河北保定071056

出　　处：《变压器》2023年第6期1-5,共5页Transformer

摘　　要：本文中作者介绍了发电机变压器和高压启动备用变压器的低压绕组采用“U”形双层结构时,在雷电冲击电压下的高、低压绕组电位分布,指出低压绕组采用“U”形双层结构比“I”形结构可降低高压侧雷电冲击时在低压绕组中的感应电压。The potential distribution of high voltage winding and low voltage winding under lightning impulse voltage is introduced when the low voltage winding of generator transformer and high voltage starting standby transformer adopts U-type double-layer structure.Pointed out that the U-type double-layer structure of low voltage winding can reduce the induced voltage in the low voltage winding under lightning impulse on the high voltage side compared with the I-type structure.

关 键 词：变压器 “U”形绕组 波过程 

分 类 号：TM402[电气工程—电器]