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变压器绝缘的微水含量是影响其寿命重要因素之一.本文基于去极化电量和介电响应理论,提取去极化电流始端去极化电量Soil和末端去极化电量Spaper来评估变压器油纸绝缘的微水含量.首先,比较绝缘油和绝缘纸在不同水分含量下的去极化电流曲线变化;然后,根据去极化电流曲线的介电响应参数辨识结果提取特征量Soil和Spaper,分析结果表明,Soil与Spaper均随着绝缘油或纸中微水含量的增加呈现指数规律增长.最后,通过实例验证所提特征量能较好地评估变压器油纸绝缘的微水含量.
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电气技术
ISSN: 1673-3800
CN: 11-5255/TM
Year: 2019
Issue: 3
Volume: 20
Page: 62-66
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 4
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