电力系统自动化2012，Vol.36Issue(4)：91-95,5.
注入方波信号的经消弧线圈接地系统故障选线方法
A New Method for Fault Line Selection in Distribution System with Arc Suppression Coil Grounding with Square-wave Signal Injection
樊淑娴 1徐丙垠 2张清周3
作者信息
- 1. 山东科技大学信息与电气工程学院,山东省青岛市266590
- 2. 山东理工大学电气与电子工程学院,山东省淄博市255049／山东科汇电气自动化有限公司,山东省淄博市255087
- 3. 山东理工大学电气与电子工程学院,山东省淄博市255049
- 折叠
摘要
Abstract
A new method for fault line selection in distribution system with arc suppression coil grounding with square-wave signal injection is proposed.A low frequency square-wave signal is injected from the secondary side of bus voltage transformer,the phase currents flowing through each feeder are detected,and then the relationships of the amplitudes of their fundamental and the third harmonic components are analyzed to select the fault line.The principle of the method is introduced in detail,and the criterion of fault line selection is proposed as well.The analogical test results show that the method has good ability to eliminate the influence of distributed capacitance and the detection accuracy is improved with large grounding resistance.关键词
方波信号/经消弧线圈接地系统/单相接地/故障选线/配电网Key words
square-wave signal/power system with arc suppression coil grounding/single-phase grounding fault/fault line selection/distribution networks分类
信息技术与安全科学引用本文复制引用
樊淑娴,徐丙垠,张清周..注入方波信号的经消弧线圈接地系统故障选线方法[J].电力系统自动化,2012,36(4):91-95,5.
