变压器保护相位角补偿及整定计算研究  

Research on Phase Angle Compensation and Setting Calculation of Transformer Protection

作　　者：凌盛 LING Sheng(Shanghai Mingsen Electric Power Engineering Co.,Ltd.,Shanghai 200000,China)

机构地区：[1]上海名森电力工程有限公司,上海200000

出　　处：《移动信息》2025年第4期247-251,共5页Mobile Information

摘　　要：为解决因变压器高低压侧存在电流相位角而与老式主变保护装置不匹配的问题,文中分析了变压器极性原理、各种连接组别的变压器接线原理、辅助流变器功能及接线方法,通过辅助流变器进行相位角调整,最终实现了变压器高低压侧存在相位角与老式主变保护装置的匹配,为以后技改项目中类似问题提供了解决思路。同时,对变压器低压侧两相短路低压侧和高压侧短路电流进行了定量分析,为继电保护整定计算提供了输入条件。To solve the problem of mismatch between the current phase angle on the high and low voltage sides of the transformer and the old-fashioned main transformer protection device,this paper analyzes the principle of transformer polarity,the wiring principles of various connection groups of transformers,the function and wiring method of auxiliary transformers.By adjusting the phase angle through the auxiliary transformer,the matching of the phase angle on the high and low voltage sides of the transformer with the old-fashioned main transformer protection device is finally achieved,providing a solution for similar problems in future technical renovation projects.At the same time,quantitative analysis was conducted on the short-circuit currents of the low-voltage side and high-voltage side of the transformer,providing input conditions for relay protection setting calculation.

关 键 词：同名端 相位差 辅助流变器 连接组别 反极性 两相短路 

分 类 号：TM773[电气工程—电力系统及自动化]