Influence of Phase-selection Switching on the Short-circuit Current Parameters and Its Application in Short-circuit Tests

ZHAO Qingbin; HUANG Shi; FAN Chufu; SU Yuhong

doi:10.13296/j.1001-1609.hva.2015.09.028

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Influence of Phase-selection Switching on the Short-circuit Current Parameters and Its Application in Short-circuit Tests

更新时间：2025-04-26

- Influence of Phase-selection Switching on the Short-circuit Current Parameters and Its Application in Short-circuit Tests
- High VoltageApparatus Vol. 51, Issue 9, Pages: 164-168+176(2015)
- 作者机构：
  
  西安高压电器研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.09.028
  CLC： TM561
- Published：2015
- 稿件说明：
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[1]赵庆斌,黄实,樊楚夫,苏宇红.选相合闸对短路电流参数的影响及其在容量试验中的应用[J].高压电器,2015,51(09):164-168+176.

ZHAO Qingbin, HUANG Shi, FAN Chufu, et al. Influence of Phase-selection Switching on the Short-circuit Current Parameters and Its Application in Short-circuit Tests[J]. High voltageapparatus, 2015, 51(9): 164-168+176.
[1]赵庆斌,黄实,樊楚夫,苏宇红.选相合闸对短路电流参数的影响及其在容量试验中的应用[J].高压电器,2015,51(09):164-168+176. DOI： 10.13296/j.1001-1609.hva.2015.09.028.

ZHAO Qingbin, HUANG Shi, FAN Chufu, et al. Influence of Phase-selection Switching on the Short-circuit Current Parameters and Its Application in Short-circuit Tests[J]. High voltageapparatus, 2015, 51(9): 164-168+176. DOI： 10.13296/j.1001-1609.hva.2015.09.028.

摘要

选相合闸可改变短路电流的直流分量。文中计算了在不同相位合闸时短路电流的峰值

分析了非对称电流零点及峰值时刻的变化趋势

公式推导了三相不同期合闸时获得最大冲击系数时三相的合闸相位

计算了在不同的极间同期条件下电流的最大峰值系数。结果表明三相同期性对关合电流峰值有一定影响

容量试验可利用这些特点调整电流参数。

Abstract

Phase-selection switching will change the direct component of short-circuit current. In this paper

the peak current for switching at different phase angles is calculated

and the variation trend of time at zero and peak of asymmetric current is analyzed. The angles of three phases for obtaining maximum current shock coefficient are derived in the case of non-simultaneous three-phase switching

and the peak current coefficient in different poles simultaneity conditions is calculated as well. It is concluded that the simultaneity of three phases exerts a certain influence on peak current of phase-selection switching

and this feature can be applied to short-circuit tests in order to obtain suitable current parameters.

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