高压电器2013，Vol.49Issue(2)：67-73,79,8.
750kV架空地线接地方式及损耗研究
Grounding Modes and Electric Loss of 750 kV Overhead Ground Wire
赵丹丹 1韩政 2郭洁3
作者信息
- 1. 上海市电力公司电力科学研究院,上海 200437
- 2. 上海市电力公司金山供电局,上海 200540
- 3. 西安交通大学电气学院,西安 710049
- 折叠
摘要
Abstract
With increasing requirement for electricity, the voltage level and transmission capacity of power transmission lines get larger, which results in more and more electric loss due to inductive current in ground wire and operation cost. In this paper, the amplitudes of inductive voltage and current, the electric loss of overhead ground wire, and the amplitude of overvoltage on transmission line are calculated for different grounding modes. The results show that the amplitudes of inductive voltage and current as well as the electric loss of overhead ground wire get the minimums when OPGW takes segment insulation with one point earthing, while the zero-sequence impedance and the amplitude of overvoltage become higher in this grounding mode. Both grounding modes of overall insulation and overall insulation with two ends earthing for OPGW are not recommended.关键词
架空地线/接地方式/感应环流/感应电流/电能损耗Key words
overhead ground wire/ grounding mode/ inductive voltage/ inductive current/ energy loss分类
信息技术与安全科学引用本文复制引用
赵丹丹,韩政,郭洁..750kV架空地线接地方式及损耗研究[J].高压电器,2013,49(2):67-73,79,8.
