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500kV直流线路棒形悬式瓷绝缘子闭式卡具设计

, PP. 20-23

Keywords: 棒形悬式瓷绝缘子,耐张串,绝缘子卡具,直流输电线路

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Abstract:

棒形悬式瓷绝缘子在500kV直流输电线路耐张串上得到了广泛应用,随着线路长时间运行,绝缘子在外部环境条件作用下逐渐变成低值或零值。为了保证供电可靠性,带电更换瓷质绝缘子成为一种必然要求。笔者设计了一种±500kV直流输电线路带电作业用绝缘子卡具,该卡具用于更换耐张串中间任意单根棒形悬式瓷绝缘子。具有结构简单、质量轻、强度高、便于携带等特点,对带电更换±500kV线路耐张串绝缘子具有非常重要的作用。

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