李琪菡,张振东,刘浩,黄小龙,罗英.影响油浸式电力变压器振动因素的研究[J].电测与仪表,2023,60(9):96-101. LiQiHan,zhangzhendong,liuhao,huangxiaolong,luoying.Study on factors affecting vibration of oil immersed power transformers[J].Electrical Measurement & Instrumentation,2023,60(9):96-101.
影响油浸式电力变压器振动因素的研究
Study on factors affecting vibration of oil immersed power transformers
The vibration signal of transformer will be affected by various factors during operation. n this paper, theoretical and experimental methods are used to study the vibration signal of oil immersed power transformer affected by the installation position of vibration sensor, the degree of compaction of iron core and winding, load power factor, load three-phase imbalance and insulating oil viscosity. The results show that the top test position can better reflect the vibration signal characteristics, the compression degree of iron core and winding is inversely proportional to the vibration intensity, the three-phase imbalance degree is directly proportional to the vibration intensity, the power factor affects the vibration signal spectrum complexity, and the viscosity of insulating oil has little impact on the vibration signal.
