剖析无功补偿装置中串联电抗的绝缘击穿

胡鹏

胡鹏.剖析无功补偿装置中串联电抗的绝缘击穿[J].电测与仪表,2015,52(5):.
hupeng.Analysis of Insulation Breakdown of Series Reactor in Reactive Compensation Device[J].Electrical Measurement & Instrumentation,2015,52(5):.

剖析无功补偿装置中串联电抗的绝缘击穿

Analysis of Insulation Breakdown of Series Reactor in Reactive Compensation Device

DOI：

中文关键词: 无功补偿装置串联电抗器谐波放大

英文关键词:reactive compensation device series reactor harmonic amplification

基金项目:

作者中文名	作者英文名	单位
胡鹏	hupeng	郑州大学电气工程学院电气工程系周勇（转）

摘要点击次数: 2079

中文摘要:

通过对某110kV变电站谐波监测数据的分析，确定了造成无功补偿装置中串联电抗器绝缘击穿的原因在于5次谐波电压严重放大，将4.5%的电抗器更换为6%的电抗器之后，可降低电抗器两端的5次谐波电压，进而降低10kV母线电压总谐波畸变率，避免电抗器的绕组过热和绝缘老化，最后还给出了关于减少谐波对无功补偿装置影响的建议。

英文摘要:

This paper analyzes the monitored harmonics data of a 110kV transformer substation, and finds that the insulation breakdown of the reactive compensation device’s series reactor is caused by the serious amplification of the 5th harmonic voltage. Replacing the 4.5% reactor with 6% reactor can lower the 5th harmonic voltage across the reactor, thus reducing the total harmonic distortion of the 10kV bus voltage and avoiding winding overheat and insulation aging of the reactor. Based on the findings, some suggestions on reducing harmonics’ impact on reactive compensation device are given.

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