变压器局部放电试验过程中异响原因分析
Electric Engineering(2017)
Abstract
针对某220kV变压器局部放电过程中存在异响,通过变压器内检、返厂维修等确定异响原因为变压器运抵现场后未及时安装到位,长时间位于钢轨上受力不均,引起设备底座变形,形成应力集中现象.
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