电气技术2025，Vol.26Issue(4)：44-49,6.
基于序电压比值原理的电压互感器断线检测
Detection of potential transformer secondary break based on the principle of sequence voltage ratio
马俊岭 1厉志波2
作者信息
- 1. 华润新能源投资有限公司河南分公司,郑州 450018
- 2. 润电能源科学技术有限公司,郑州 450018
- 折叠
摘要
Abstract
Based on the fault characteristics following the disconnection of the secondary circuit of a potential transformer(PT),a detection method for PT secondary break utilizing the principle of sequence voltage ratio is proposed.This method primarily calculates the ratio of the positive sequence voltage to the negative sequence voltage from the PT's secondary voltage data to determine the occurrence of a PT break.Simulation results demonstrate that this criterion can accurately assess whether an asymmetric disconnection has occurred in the PT secondary circuit,particularly advantageous when the PT secondary circuit is concurrently connected to both delta and star loads.关键词
电压互感器(PT)断线/序电压/判据Key words
potential tansformer(PT)break/sequence voltage/criterion引用本文复制引用
马俊岭,厉志波..基于序电压比值原理的电压互感器断线检测[J].电气技术,2025,26(4):44-49,6.
