Vibration Sound Power Measurement Method of UHV Transformer Based on Location of Main Vibration Point

ZHANG Chao; LIU Guoqiang; LU Zhumao; YU Hua

doi:10.13296/j.1001-1609.hva.2025.03.012

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Vibration Sound Power Measurement Method of UHV Transformer Based on Location of Main Vibration Point

Research & Analysis | 更新时间：2025-05-25

- Vibration Sound Power Measurement Method of UHV Transformer Based on Location of Main Vibration Point
- High Voltage Apparatus Vol. 61, Issue 3, Pages: 105-111(2025)
- 作者机构：
  
  1.中国科学院电工研究所，北京　 100190
  2.中国科学院大学电子电气与通信工程学院，北京　 100049
  3.国网山西省电力公司电力科学研究院，太原　 030012
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of Beijing(8202047);Key Laboratory Fund for Equipment Comprehensive Support Technology(6142003190408);State Grid Corporation of China Science and Technology Project(52053016000B)
- DOI：10.13296/j.1001-1609.hva.2025.03.012
  CLC：
- Received：10 September 2024，
  
  Revised：13 December 2024，
  
  Published：16 March 2025
- 稿件说明：
移动端阅览
ZHANG Chao, LIU Guoqiang, LU Zhumao, et al. Vibration Sound Power Measurement Method of UHV Transformer Based on Location of Main Vibration Point[J]. High voltage apparatus, 2025, 61(3): 105-111.
DOI：

ZHANG Chao, LIU Guoqiang, LU Zhumao, et al. Vibration Sound Power Measurement Method of UHV Transformer Based on Location of Main Vibration Point[J]. High voltage apparatus, 2025, 61(3): 105-111. DOI： 10.13296/j.1001-1609.hva.2025.03.012.

摘要

与声压法和声强法相比，振动声功率测算方法具有从变压器本体和风扇综合噪声中提取本体声源特性的优势。振动测点的布放方式对声功率测算结果影响较大。目前振动测点布放尚无统一标准，多采用近似均匀布放方式，声功率测算结果往往偏低。文中提出基于变压器箱体表面主振点定位的非均匀布点方法，对山西省内某1 000 kV特高压变压器的本体辐射声功率进行了测算研究。在测试条件下，新方法得到的本体振动声功率高于均匀布放方式，本体振动和风扇总声功率与声压法测算结果吻合度更高。该方法有利于提高特高压变压器本体声功率测算的准确度，为站内声源特性评估提供一种新的选择。

Abstract

The vibration sound power measurement method

compared with the sound pressure method and the sound intensity method

has the advantage of extracting the sound source characteristics from the comprehensive noise of the transformer proper and the fan. The distribution mode of the vibration measurement points has a great influence on the results of sound power measurement. At present

there is no unified standard for the distribution of vibration measurement points. Approximately uniform distribution method is often applied

but the sound power measurement result is often lower. In this paper

the non-uniform distribution method based on locating the position of the main vibration points on the surface of the transformer is proposed. The radiated sound power of the 1 000 kV ultrahigh voltage (UHV) transformer in Shanxi province is measured and studied. Under the test condition

the sound power obtained by the new method is higher than that of the uniform distribution method

and the total sound power resulting from both the transformer proper and the fan is more consistent with the results from the sound pressure method. This method can improve the accuracy of the sound power measurement of UHV transformer and provide a new choice for assessing the sound source characteristics in substation.

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