1) contamination flashover performance
污秽闪络特性
1.
The results of the research on contamination flashover performance of DC insulator strings for ±500 kV HVDC system are presented and the ±600 kV artificial pollution test equipment for DC contamination in China Electric Power Research Institute(CEPRI)is described.
介绍了用于±500kV高压直流输电系统的直流绝缘子串污秽闪络特性的研究结果和中国电力科学研究院±600kV直流污秽试验装置,进行了与国外2个实验室的比对试验,验证了污秽耐受电压与绝缘子串长的线性关系,对污秽均匀分布和不均匀分布情况下的长串悬式绝缘子的污秽闪络电压特性进行了试验研究,得到了大量有价值的试验数据。
2) pollution flashover
污秽闪络
1.
The influence of ESDD and NSDD on flashover voltage was analyzed with single porcelain insulator(XP-210) as test sample in order to solve the damage problem of pollution flashover.
针对电力系统绝缘子污秽闪络产生的危害问题,采用升压法对涂污秽物的单片瓷绝缘子(XP-210)进行人工污秽试验,分析了不同盐密(NaCl)、灰密(硅藻土)对单片瓷绝缘子闪络电压的影响。
2.
The importance of study on pollution flashover was pointed out;taking concrete and NaCl as the pollution,the AC flashover characteristic of polluted composites insulators under the conditions with the same equivalent salt deposit density(ESDD) and different non-soluble deposit density(NSDD) was researched by test.
针对电力系统复合绝缘子污秽闪络产生的危害问题,提出了开展污秽闪络特性研究的重要性,研究了NaCl(盐密ESDD)一定的情况下,不同水泥污秽(灰密NSDD)对复合绝缘子污秽闪络特性的影响,研究结果表明:灰密对绝缘子人工污秽闪络电压也是有影响的,闪络电压与灰密成幂函数关系,并且灰密对闪络电压的影响是独立的。
3) pollution/flashover
污秽/闪络
4) flashover
[英]['flæʃ,əuvə] [美]['flæʃ,ovɚ]
污秽闪络
1.
To solve the problem of the flashover forecasting of contaminated insulator, a flashover forecasting model of contaminated insulator based on double artificial neural networks (ANNs) is proposed in the paper.
污闪概率模型比较准确地反映了环境因素、等值附盐密度(ESDD)、污秽闪络电压水平及污秽闪络概率之间的非线性关系,建立了包括估计绝缘子的自然积污污秽度、预测绝缘子污秽闪络电压值及根据前两个模型的输出结果计算出该绝缘子污闪的风险概率大小的三个子模型。
6) characteristic of pollutes contamination
污秽附着特性
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