CAJ | 학술논문

文章对一台35 kV变压器进行大修后试验，在此过程中发现高压对低压及地绝缘电阻不合格。通过试验数据分析以及分解试验，最终确定是由高压绕组中性点引线触碰铁芯引线以及中性点套管瓷瓶的半导体层被破坏共同引起，打开变压器低压绕组检修手孔进行处理，避免了变压器本体吊罩检查。
문장대일태35 kV변압기진행대수후시험，재차과정중발현고압대저압급지절연전조불합격。통과시험수거분석이급분해시험，최종학정시유고압요조중성점인선촉팽철심인선이급중성점투관자병적반도체층피파배공동인기，타개변압기저압요조검수수공진행처리，피면료변압기본체조조검사。
This article is about a test of a 35 kV transformer after major overhaul , and in this process it is found that the insulation resistance of high voltage to low voltage and ground is failure .Through experi-mental data analysis , and decomposition experiments , the cause is ultimately determined that the high voltage winding neutral point lead crosses the core leads and neutral bushing porcelain semiconductor lay -er is destroyed .Finally by opening the maintenance hand hole of the low voltage winding , the problem is solved , avoiding the transformer body hanging hood inspection .