Transformer Core Vibration Damping Technology and Three Types of Damping Rubber Performance Testing

doi:10.3969/j.issn.1008-0198.2022.06.007

Hunan Electric Power ›› 2022, Vol. 42 ›› Issue (6): 40-45.doi: 10.3969/j.issn.1008-0198.2022.06.007

• Researches and Tests • Previous Articles Next Articles

Transformer Core Vibration Damping Technology and Three Types of Damping Rubber Performance Testing

WU Xiaowen¹, ZHAO Ruidun², LI Shengli³, CHEN Wei², HU Sheng²

1. Hunan University of Science and Technology, Xiangtan 411201, China;
2. State Grid Hunan Electric Power Company Limited Research Institute, Changsha 410007, China;
3. Huazhong University of Science and Technology,Wuhan 430074, China

Received:2022-08-11 Revised:2022-09-23 Online:2022-12-25 Published:2023-01-13

Abstract

Abstract: A physical model of 10 kV oil-immersed distribution transformer is established to study the vibration mechanism, transmission law and damping effect of transformer core and oil tank, the vibration displacement data of transformer oil tank surface at different time with and without iron core damping gasket are analyzed. It is proved that the vibration amplitude and noise emission of oil tank can be reduced by adding damping device between oil tank and iron core to increase the loss of vibration energy in the process of transmission. According to the characteristics and application requirements of transformer oil, cork rubber, nitrile rubber and fluorine rubber were selected to test their oil resistance. The test results of damping performance show that cork rubber and NBR can not satisfy the noise suppression condition of transformer, and will increase the noise to some extent under the condition of load, the fluorine rubber damping pad can meet the requirements of vibration and noise suppression of transformer, and can effectively reduce the noise. It can be used as a potential damping pad material for oil-immersed transformer iron core.

Key words: oil immersed transformer, iron core vibration damping, simulation analysis, damping rubber

CLC Number:

TM41

WU Xiaowen, ZHAO Ruidun, LI Shengli, CHEN Wei, HU Sheng. Transformer Core Vibration Damping Technology and Three Types of Damping Rubber Performance Testing[J]. Hunan Electric Power, 2022, 42(6): 40-45.

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Transformer Core Vibration Damping Technology and Three Types of Damping Rubber Performance Testing

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