The Calculation of Electrodynamic Forces Caused by Non-simultaneous Short-Circuit in Three Phase A. C. Circuit

Shang Zhenqiu

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The Calculation of Electrodynamic Forces Caused by Non-simultaneous Short-Circuit in Three Phase A. C. Circuit

更新时间：2025-04-26

- The Calculation of Electrodynamic Forces Caused by Non-simultaneous Short-Circuit in Three Phase A. C. Circuit
- High VoltageApparatus Issue 4, Pages: 3-6(1989)
- 作者机构：
  
  西安交通大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1989
- 稿件说明：
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[1]尚振球.三相交流电路非同期短路时电动力的计算[J].高压电器,1989(04):3-6.

Shang Zhenqiu. The Calculation of Electrodynamic Forces Caused by Non-simultaneous Short-Circuit in Three Phase A. C. Circuit[J]. High voltageapparatus, 1989, (4): 3-6.
[1]尚振球.三相交流电路非同期短路时电动力的计算[J].高压电器,1989(04):3-6. DOI：

Shang Zhenqiu. The Calculation of Electrodynamic Forces Caused by Non-simultaneous Short-Circuit in Three Phase A. C. Circuit[J]. High voltageapparatus, 1989, (4): 3-6. DOI：

摘要

本文计算了三相交流电路非同期短路时作用在水平布置的三相载流导体上的电动力

计算表明

在最严重的情况下

作用在左边

中间和右边各相导体上最大电动力的方向分别为向左、向左和向右

而最大电动力的数值分别为三相同期短路时的1.2

1.4和1.4倍

为此

作者建议

在设计高压电器时

应按非同期短路时的情况来考虑其电动稳定性

Abstract

Electrodynamic forces in case of non-simultaneous short-circuit in three phase A.C. circuit

which acts on three phase carrying-current condutor in horizontal arrange

was calculated in this paper. It shows that

in the severest condition

the direction of maximum electro-dynamic forces

which acts on left

middle and right conductor

severally is leftward

leftward and rightward

and the maximum of them severally is 1.2

1.4andl.4 times of the maximum in case of three phase simultaneous short-circuit. From this

it is proposed the peak withstand current of high voltage switchgear should be equal to peak current in case of non-simultaneo-usshort-circuit in three phase A.C. circuit.

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