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xiaobo2009
態(tài)度決定一切,細節決定完美
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樓主  發(fā)表于: 2010-04-16 19:06
我們廠(chǎng)有一臺500KVA的變壓器，10KV/400V，二次則額定輸出電流為721A。因為廠(chǎng)設備多，現在老是出現超載現象。經(jīng)常輸出為800A。我知道變壓器是可以超一點(diǎn)的。請問(wèn)那位大俠能告訴我，這樣長(cháng)期下去，變壓器會(huì )不會(huì )安全，會(huì )不會(huì )燒掉��！謝謝！
雪花飄飄
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1樓  發(fā)表于: 2010-04-16 19:16
如果變壓器的功率因素在0.9以上，這個(gè)變壓器處于滿(mǎn)負荷運行
，變壓器有一定的過(guò)負荷承載能力，，但要注意變壓器上層油溫溫度不應超過(guò)85度.如果變壓器的功率因素在0.9以下，為了保證安全，應該減少負荷運行 。
建議樓主慎重。

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