高压电器2017，Vol.53Issue(7)：95-99,5.DOI:10.13296/j.1001-1609.hva.2017.07.015
基于电流注入法的非对称短路开断试验(T100a)TRV参数计算与研究
Calculation and Study of TRV Parameters for Asymmetric Short-circuit Breaking Test (T100a) Based on Current Injection Method
张晋波 1高享想 1张云飞 2刘浩军 1彭剑飞1
作者信息
- 1. 西安高压电器研究院有限责任公司,西安710077
- 2. 国网临沂供电公司,山东临沂276000
- 折叠
摘要
Abstract
When the high-voltage AC circuit-breakers breaking the asymmetrical short-circuit fault in the power system,the short-circuit current is the superposed by AC component and DC component which resulting the last current arc-extinguishing loop is major loop or minor loop.Because the current zero point deviates from peak of the power supply voltage,the TRV peak will be lower than the value of symmetrical short circuit fault breaking.Based on the principle of current injection and TRV values of T100s,according to current expression of T100s and T100a,the correction coefficients of TRV values of T100a can be calculated for major loop or minor loop.Finally,the research of this paper can help to assess the TRV parameters of T100a test and adjust the R,L,C values of frequency modulation device in high power laboratory.关键词
非对称故障/T100a/TRV/大半波/小半波Key words
asymmetrical fault/T100a/TRV/major loop/minor loop引用本文复制引用
张晋波,高享想,张云飞,刘浩军,彭剑飞..基于电流注入法的非对称短路开断试验(T100a)TRV参数计算与研究[J].高压电器,2017,53(7):95-99,5.
