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-- LO-ZCT513502
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-- LO-ZCT513802
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-- LO-ZCT513002-1
-- LO-ZCT513902-1
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-- LO-ZCT513702-1
-- Residual current transformer 51series
-- LO-ZCT513302
-- LO-CTYD
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怎樣選擇合適的電壓互感器熔絲
Publisher:admin  Time:2013/10/31 16:26:24  Click:4177

電壓互感器的熔絲是重要的組成部分,熔絲質(zhì)量的好與壞直接決定著電壓互感器的使用年限,在選擇熔絲的時(shí)候我們要考慮到這些因素:為了預(yù)防電壓互感器出現(xiàn)短路或者二次回路,可以在電壓的回路中裝置上一個(gè)熔斷器,或者在二次回路中裝置上箱斷器,其中使用的熔絲它的額定電流應(yīng)該是負(fù)載電流的1.5倍左右,定計(jì)電壓回路在正常情況下都是按照1至2安來作選擇,而電壓互感器二次回路的熔絲是得按照3至5安來作選擇。為了確保電壓互感器和電網(wǎng)在連線上的故障,如果電壓互感器是在35千伏以下的話且一次側(cè)沒有裝置熔斷器的話,那么熔絲的額定電流應(yīng)該保持在0.5安左右。

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