Power Filter Circuit in Three-phase Power Capacitor Bank Test

FU Guan-qing

doi:10.14044/j.1674-1757.pcrpc.2011.03.014

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Power Filter Circuit in Three-phase Power Capacitor Bank Test

更新时间：2024-09-14

- Power Filter Circuit in Three-phase Power Capacitor Bank Test
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 32, Issue 3, Pages: 54-57(2011)
- 作者机构：
  
  上海电气输配电试验中心有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2011.03.014
  CLC： TM531.4
- Published：2011，
- 稿件说明：
移动端阅览
[1]付冠青.三相电容器组试验中的电源滤波回路[J].电力电容器与无功补偿,2011,32(03):54-57+61.

FU GUAN-QING. Power Filter Circuit in Three-phase Power Capacitor Bank Test. [J]. Power capacitor & reactive power compensation, 2011, 32(3): 54-57.
[1]付冠青.三相电容器组试验中的电源滤波回路[J].电力电容器与无功补偿,2011,32(03):54-57+61. DOI： 10.14044/j.1674-1757.pcrpc.2011.03.014.

FU GUAN-QING. Power Filter Circuit in Three-phase Power Capacitor Bank Test. [J]. Power capacitor & reactive power compensation, 2011, 32(3): 54-57. DOI： 10.14044/j.1674-1757.pcrpc.2011.03.014.

摘要

由于变压器空载电压中存在大量以3次谐波为主的谐波分量

难以满足三相电容器组试验对于电源质量的要求

因此

如何提高试验回路的电源质量是一个值得研究的问题。笔者结合实际试验数据从理论上分析了致使电压波形畸变的原因

并依据分析的原因结合试验回路的特殊性提出了使用电阻滤波回路抑制谐波的方法

实际试验结果表明滤波效果明显

并且电源回路其余相关试验参数都满足国标GB 1984—2003《高压交流断路器》的要求。

Abstract

Since there are lots of 3rd harmonics in no-load voltage of transformers

it is difficult to meet the requirement of power quality for 3-phase capacitor current switching tests.Therefore

how to improve power quality of the test circuit is the issue needing study.Based on the test data

the cause for distortion of voltage waveform is analyzed.A filter circuit with resistance is then used considering the speciality of the real test circuit for 3-phase capacitor current switching test.The filter circuit is proved to be effective through tests and other related test ratings of supply circuit meet the requirement of GB 1984—2003 standard.

关键词

变压器谐波电容器

Keywords

transformerharmonicscapacitor

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