Calculations of Switching Impulse Voltage Test Waveform for Power Transformers

CHEN Changyu

doi:10.13296/j.1001-1609.hva.2016.01.005

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Calculations of Switching Impulse Voltage Test Waveform for Power Transformers

更新时间：2025-04-26

- Calculations of Switching Impulse Voltage Test Waveform for Power Transformers
- High VoltageApparatus Vol. 52, Issue 1, Pages: 27-29+35(2016)
- 作者机构：
  
  清华大学电机工程系
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.01.005
  CLC： TM41
- Published：2016
- 稿件说明：
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[1]陈昌渔.电力变压器操作冲击试验电压波形的计算[J].高压电器,2016,52(01):27-29+35.

CHEN Changyu. Calculations of Switching Impulse Voltage Test Waveform for Power Transformers[J]. High voltageapparatus, 2016, 52(1): 27-29+35.
[1]陈昌渔.电力变压器操作冲击试验电压波形的计算[J].高压电器,2016,52(01):27-29+35. DOI： 10.13296/j.1001-1609.hva.2016.01.005.

CHEN Changyu. Calculations of Switching Impulse Voltage Test Waveform for Power Transformers[J]. High voltageapparatus, 2016, 52(1): 27-29+35. DOI： 10.13296/j.1001-1609.hva.2016.01.005.

摘要

文中讨论了有关电力变压器感应法进行操作冲击试验时的两项计算

重点是提供一种计算操作冲击电压波前的方法。借助于计算机

采用了拉普拉斯变换来计算5阶电路

从而可以计算出产生操作冲击时

变压器原边起始时尖脉冲的高度

变压器原边和副边波前的形状和幅度

以及高压操作冲击试验波的视在波前时间。

Abstract

Calculations for power transformers during high voltage switching impulse tests by electromagnetic induction are discussed. The objective of this paper is to introduce a calculating method for the front wave of switching impulse. 5-order equations for the electric circuit are developed using Laplace transform by means of computers. These equations can calculate the voltage waves and amplitudes both on primary and secondary sides.Therefore

the original short impulse on the primary wave and the virtual front time of the high voltage testing wave can be obtained.

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