Research on Fault Diagnosis Technology of Transformer Inducting Oscillating Switching Impulse Voltage Test Based on Transfer Function Method

SUN Wenxing; LIN Chunyao; CAI Linglong; MA Zhiqin; OUYANG Xudong; LI Chong

doi:10.13296/j.1001-1609.hva.2020.06.035

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Research on Fault Diagnosis Technology of Transformer Inducting Oscillating Switching Impulse Voltage Test Based on Transfer Function Method

更新时间：2025-04-26

- Research on Fault Diagnosis Technology of Transformer Inducting Oscillating Switching Impulse Voltage Test Based on Transfer Function Method
- High VoltageApparatus Vol. 56, Issue 6, Pages: 243-248(2020)
- 作者机构：
  
  1. 广东电网有限责任公司
  2. 广东电网有限责任公司电力科学研究院
  3. 广东省电力装备可靠性企业重点实验室
  4. 广东电网有限责任公司惠州供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.06.035
  CLC： TM407
- Published：2020
- 稿件说明：
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[1]孙文星,林春耀,蔡玲珑,马志钦,欧阳旭东,李冲.基于传递函数法的变压器感应式振荡操作冲击电压试验故障诊断技术研究[J].高压电器,2020,56(06):243-248.

SUN Wenxing, LIN Chunyao, CAI Linglong, et al. Research on Fault Diagnosis Technology of Transformer Inducting Oscillating Switching Impulse Voltage Test Based on Transfer Function Method[J]. High voltageapparatus, 2020, 56(6): 243-248.
[1]孙文星,林春耀,蔡玲珑,马志钦,欧阳旭东,李冲.基于传递函数法的变压器感应式振荡操作冲击电压试验故障诊断技术研究[J].高压电器,2020,56(06):243-248. DOI： 10.13296/j.1001-1609.hva.2020.06.035.

SUN Wenxing, LIN Chunyao, CAI Linglong, et al. Research on Fault Diagnosis Technology of Transformer Inducting Oscillating Switching Impulse Voltage Test Based on Transfer Function Method[J]. High voltageapparatus, 2020, 56(6): 243-248. DOI： 10.13296/j.1001-1609.hva.2020.06.035.

摘要

采用感应式振荡型操作冲击电压对变压器进行现场冲击耐压试验具有效率高、易于调波、试验设备体积小等优点。为了研究变压器匝间短路故障在感应式振荡操作冲击电压下的电压传递函数特性

构建了感应式振荡操作冲击电压下变压器的电压传递函数

建立了模拟变压器匝间短路的试验模型

并以该模型为试验对象搭建试验系统进行试验。通过分析试验数据后发现

存在匝间短路故障的变压器在感应式振荡操作冲击电压作用下

其电压传递函数与无故障时相比

极值点所在的频率升高

极值点的幅值降低。短路故障越严重

极值点的变化趋势越明显。文中总结的感应式振荡操作冲击电压作用下变压器电压传递函数的变化规律有助于在现场对变压器进行感应式振荡操作冲击耐压试验并检测其绝缘缺陷。

Abstract

The inducting oscillating switching impulse（OSI）test for on-site impulse withstand voltage test of trans-former has advantages in efficiency

modulating wave and decreasing the size of equipment. In order to investigatethe characteristics of the voltage transfer function of a transformer with a inter-turn short-circuit fault under Inductingoscillating switching impulse

this paper constructed the voltage transfer function of transformer under oscillatingswitching impulse

built a test model to simulate inter-turn short-circuit faults in transformer

and constructed a testsystem to carry on tests on the model. The results show that compared with no fault

the voltage transfer function of atransformer with a inter-turn short-circuit fault under OSI the frequency increases and the amplitude decreases of atthe extreme point. Besides

the more serious the inter-turn short-circuit fault is

the more obvious the change of the ex-treme point is. How the extreme point of the voltage transfer function of a transformer with a inter-turn short-circuit faultunder OSI changes which is concluded in this paper will help in transformer OSI test and insulation defect detecting.

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