基于涡流驱动的变压器限流装置研究  

Research on transformer current limiting-device based on eddy current drive

作　　者：白涛 张鹏程 刘宁波 BAI Tao;ZHANG Pengcheng;LIU Ningbo(Shizuishan Power Supply Company of State Grid Ningxia Electric Power Co.,Ltd.,Shizuishan Ningxia 753000,China)

机构地区：[1]国网宁夏电力有限石嘴山供电公司,宁夏石嘴山753000

出　　处：《宁夏电力》2023年第S01期93-96,共4页Ningxia Electric Power

摘　　要：为有效解决中低压侧短路电流冲击损毁主变压器的问题,研究了基于涡流驱动的变压器限流装置。该装置将限流电抗器和快速开关并联后接入变压器高压侧母线,通过限流特性和接入系统前后短路电流计算可以看出该装置降低了短路电流,解决了主变压器中低压侧出现短路引起的故障,避免了传统限流技术引发的电压降低,损耗大等问题,抑制了短路电流对其他设备的冲击。In order to effectively solve the problem of the damage of main transformer caused by short-circuit current impact on low and medium voltage side of main transformer,a transformer current limiting device based on eddy current drive is presented.The device connected the current-limiting reactor and fast switch in parallel to the transformer high-voltage side bus.By the current-limiting characteristics and the short-circuit current calculation before and after the access system,the device greatly reduced the short-circuit current and the main transformer fault caused by short-circuit in the low-voltage side of the main transformer was solved,which avoided the problems of low voltage and high loss caused by traditional current limiting technology,and suppressed the impact of short-circuit current on other devices.

关 键 词：涡流驱动 快速真空断路器 短路电流 变压器 限流装置 

分 类 号：TM407[电气工程—电器]