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通过对国内外6处27组全比例模拟操作冲击空气间隙绝缘强度实验数据分析、比对,IEC71-2-1996方法与试验结果吻合度较高,进一步证明了现行"设计规范"提出的高海拔修正法可行,其海拔适用范围可扩大至4?500～5?000?m,针对IEC71-2-1996的海拔修正因子m曲线,提出了空气间隙拟合数字计算公式。
Abstract：The article through studied and analyzed of 6 places at home and abroad 27 groups experimental data of full scale simulated tower switching impulse air clearance insulation strength.The method of IEC71-2-1996 is in good agreement with the experimental results.Through the analysis and comparison,it is proved that the high-altitude correction method proposed by the current design specifications is feasible,and the range of its altitude application can be extended to 4?500?m ～ 5?000?m.In addition,according to the "m" curve of IEC71-2,This paper puts forward the numerical formula,which is convenient for design and application.
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基本信息:
DOI：10.13500/j.dlkcsj.issn1671-9913.2021.02.004
中图分类号:TM75
引用信息:
[1]周刚,聂国一,梁明,等.输电线路操作冲击空气间隙计算及适用范围[J].电力勘测设计,2021,No.150(02):12-16.DOI:10.13500/j.dlkcsj.issn1671-9913.2021.02.004.
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