摘要
XHG消弧消谐选线过电压保护装置是一种新型的中性点非有效接地系统弧光接地过电压保护装置。为了研究其安全性、可靠性及有效性,进行了相关的现场模拟试验。试验结果表明,XHG消弧消谐选线过电压保护装置能够在极短的时间内选择出发生了弧光接地的出线,并将弧光接地转化为金属性接地,大幅度缩短了弧光接地的持续时间,降低了弧光接地过电压的危害,保证了系统的安全。与防止弧光接地过电压的其它措施,如系统中性点加装消弧线圈、采用中阻接地相比较,XHG消弧消谐选线过电压保护装置在一定程度上具有明显的优越性。
XHG arc extinction, harmonic eliminating and line selection over voltage protective device is a late-model non-effectively neutral-point earthing system arc grounding over voltage protective device. For studying security, reliability and validity, carries out the related spot simulation test. The test result indicates that XHG arc extinction, harmonic eliminating and line selection over voltage protective device is able to choose out the line which arc grounding to be taken place within extremely short time, translates am grounding into metallicity grounding, shortens the duration of am grounding, reduces the damage of am grounding over voltage, guarantees the system safety.
出处
《宁夏电力》
2007年第2期14-18,41,共6页
Ningxia Electric Power
关键词
中性点不接地系统
XHG消弧消谐选线过电压保护装置
单相接地试验
neutral-point unearthed system
XHG arc extinction, harmonic eliminating and line selection over voltage protective device
single phase grounding test
