Transformer winding fault detection by vibration analysis methods

被引：60

作者：

Zhou, Hong ^{[1
]}

Hong, Kaixing ^{[1
]}

Huang, Hai ^{[1
]}

Zhou, Jianping ^{[2
]}

机构：

[1] Zhejiang Univ, Dept Instrumentat Sci & Engn, 38 Zheda Rd, Hangzhou 310027, Zhejiang, Peoples R China

[2] State Grid Zhejiang Elect Power Co, Hangzhou, Zhejiang, Peoples R China

来源：

APPLIED ACOUSTICS | 2016年 / 114卷

基金：

中国国家自然科学基金;

关键词：

Transformer winding; Electromagnetic force; Vibration model; Clamping force; Winding deformation; SHORT-CIRCUIT FORCES; POWER TRANSFORMERS; EXPERIMENTAL-VERIFICATION; DYNAMIC-RESPONSE; DEFORMATIONS; FIELD; OIL;

D O I：

10.1016/j.apacoust.2016.07.024

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper, the vibration of power transformer windings is studied with the aim of identifying the winding structural condition. A winding vibration model coupled with electromagnetic force analysis is proposed to obtain the steady-state vibration distribution along the axial direction. During the experiment, the model was validated on a full size, 50 MVA, three phase power transformer. Good agreement was found between the measured vibrations and the vibrations that were calculated from the model developed in this study for a healthy winding. The effect of the winding clamping force on vibration is studied to assess the winding clamping state, and different types of winding deformations were simulated to extract diagnostic information. The preliminary study shows that it is feasible to predict the mechanical faults of transformer windings with the vibration method. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：136 / 146

页数：11

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