配电网TV高压熔断器熔断影响因素的分析

赵梦雅; 梁志瑞

赵梦雅,梁志瑞.配电网TV高压熔断器熔断影响因素的分析[J].电测与仪表,2016,53(21):.
Zhao Mengya,Liang Zhirui.The analysis on the influence factors of TV fuses blowing in the distribution network[J].Electrical Measurement & Instrumentation,2016,53(21):.

配电网TV高压熔断器熔断影响因素的分析

The analysis on the influence factors of TV fuses blowing in the distribution network

DOI：

中文关键词: 电压互感器,高压熔断器,铁磁谐振,防治措施,ATP-EMTP

英文关键词:voltage transformer, fuse, ferroresonance, prevention measures, ATP-EMTP

基金项目:

作者中文名	作者英文名	单位
赵梦雅	Zhao Mengya	华北电力大学电力工程系
梁志瑞	Liang Zhirui	华北电力大学电力工程系

摘要点击次数: 1349

中文摘要:

针对配电网时常发生的TV高压熔断器熔断的事故,分析了造成事故发生的主要原因为铁磁谐振和低频非线性振荡。本文利用ATP-EMTP建立仿真模型,对母线出线总长度、TV励磁特性、TV直流电阻和单相接地过渡电阻这4种TV高压熔断器熔断的主要影响因素进行仿真分析,得出了它们对TV高压侧过电流和系统谐振状态影响的一般规律。总结了现有的几种TV高压熔断器熔断的防治措施的优缺点,并对其消谐效果进行了仿真对比分析。

英文摘要:

For frequent electromagnetic voltage transformer (TV) fuses blowing accident in the distribution network, This paper analyzes that the main cause of the accident are ferroresonance and low frequency nonlinear oscillation. It makes a simulation model by ATP-EMTP, and makes the simulation analysis on the four main influence factors of TV fuses blowing which are the total length of bus feeder line, TV excitation characteristic, TV Primary DC Resistance and the single-phase grounding resistance. It gets the general rules that these factors have influence on TV primary current and the resonance state. It summarizes the advantages and disadvantages of several existing prevention measures for TV fuses blowing, and compares of their harmonic elimination effect.

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