Abstract：This article introduces several principles of fault location in the case of gas-insulated metal enclosed transmission line (GIL) grounding short circuit. After analyzing the grounding condition of a 5.8km long GIL project, a new positioning principle is established, and the positioning method based on the longitudinal current characteristics is explained in detail, and the concrete implementation methods are given. The location method based on longitudinal current characteristics mainly identifies the amplitude and phase characteristics of power frequency grounding current. The distributed vector acquisition structure is adopted in the positioning system. It has the advantages of N redundancy, high reliability, simple principle, convenient wiring and maintenance.
陈晓彬, 黄昕, 高锐. 纵向电流特征接地短路定位方法在气体绝缘金属封闭输电线路管廊工程中的应用讨论[J]. 电气技术, 2019, 20(11): 101-106.
Chen Xiaobin, Huang Xin, Gao Rui. The discussion of location method based on longitudinal current characteristics for gas-insulated metal enclosed transmission line project. Electrical Engineering, 2019, 20(11): 101-106.
2019, Vol. 20 
