广东电力2017，Vol.30Issue(12)：124-129,6.DOI:10.3969/j.issn.1007-290X.2017.012.021
广东电网小电流接地系统中性点接地方式优化对策
Optimization Measures for Neutral Point Grounding Mode of Small Current Grounding System of Guangdong Power Grid
李谦 1赵东生 1肖磊石 1欧阳旭东2
作者信息
- 1. 广东电网有限责任公司电力科学研究院,广东广州510080
- 2. 广东电网有限责任公司,广东广州510080
- 折叠
摘要
Abstract
Traditional neutral point grounding modes can not satisfy requirements for power grid operation and personnel safety due to the increase of capacity and capacitor current of 10～35 kV small current grounding system,therefore,the paper investigates and analyzes operation situation and existing problems of the small current grounding system of Guangdong power grid.By generalizing merits and demerits of various neutral point grounding modes and applicable occasions,it demonstrates technical advantages of arc suppression coil and small resistance in parallel grounding mode in combining power supply reliability,equipment and personnel safety.It then presents countermeasures for optimized type selection and transformation for neutral point grounding mode of the small current grounding system of Guangdong power grid.关键词
小电流接地系统/中性点接地方式/经小电阻接地方式/消弧线圈并联小电阻接地方式/电容电流Key words
small current grounding system/neutral point grounding mode/small resistance grounding mode/arc suppression coil and small resistance in parallel grounding mode/capacitor current分类
信息技术与安全科学引用本文复制引用
李谦,赵东生,肖磊石,欧阳旭东..广东电网小电流接地系统中性点接地方式优化对策[J].广东电力,2017,30(12):124-129,6.
