涟钢Ⅱ站接地方式研究与讨论
Study and Discussion on Grounding Methods of Liangang Ⅱ Station
李崇 1李明和 1岳玉琅 1曾俊 1周燕军1
作者信息
- 1. 湖南华菱涟源钢铁有限公司,湖南娄底 417009
- 折叠
摘要
涟钢公司由于电网接地电流较小,系统接地方式采取消弧线圈加不接地方式.近年来,随着公司发展,系统网络日趋复杂.系统内部分区域发生单相接地故障时,出现消弧线圈欠补偿,导致故障电缆持续拉弧、燃烧的现象.为此,从单相接地电容电流数学模型出发,对各区域接地电流进行计算,并核算现有消弧线圈补偿能力,为后续网络发展接地方式的选取提供理论基础.
Abstract
Due to the small grid grounding current,the system grounding method of Li-angang Company adopts the arcing coil plus ungrounding method.In recent years,with the development of the company,the system network has become increasingly complex.When a single-phase ground fault occurs in some areas of the system,undercompensation of the arc-absorbing coil would happen,resulting in a continuous arcing and burning of the faulted cable.Thus,based on the single-phase grounding capacitance current mathematical model,the grounding current of each region is calculated,and the existing arc-absorbing coil com-pensation capacity is accounted for,so as to provide a theoretical basis for the selection of grounding methods for subsequent network development.
关键词
接地方式/消弧线圈/单相接地电容电流Key words
grounding method/arcing coil/single-phase grounding capacitive current引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据