A Study of DC Flashover Characteristics of Polluted Insulators under Low Atmospheric Pressure[J]. High voltageapparatus, 1989, (6): 17-22.DOI:
低气压下染污绝缘子的直流放电特性研究
摘要
根据在人工气侯室内对悬式绝缘子XP—7
XWP2—7
DC—Ⅱ—16和支柱绝缘子ZS1—35—400
ZWS1—35—400的直流污闪试验结果
得到了直流闪络电压与气压和盐密的关系
并对不同结构绝缘子的污闪特性进行了分析
提出了表征直流污闪电压随气压降低而下降的特性指数n值的选取原则
并与交流下的结果进行了比较和分析。
Abstract
In this paper
the relation between the DC polluted flashover voltage of 6 kinds of insulators and atmospheric pressure
ESDD was presented according to the test results of suspension insulators XP-7
XWP2-7
DC-2# 16 and support insulators ZS1-35-400
ZWS1-35-400 conducted in artificial climate chamber. The contaminated flashover characteristics of various structure insulators have been analysed . The selective principle of characteristic exponent n which reflects the decrease of polluted flashover voltage with the ecline of pressure was proposed. The test results under DC were compared with those under AC.