The Deduction and Analysis of the Protection Formula of the Neutral Unbalanced Current in Double-star Connection

CHANG Ju-min; WANG Wei; HE Yu

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The Deduction and Analysis of the Protection Formula of the Neutral Unbalanced Current in Double-star Connection

更新时间：2024-09-14

- The Deduction and Analysis of the Protection Formula of the Neutral Unbalanced Current in Double-star Connection
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 30, Issue 4, Pages: 29-31(2009)
- 作者机构：
  
  苏州电力电容器有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM531
- Published：2009，
- 稿件说明：
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[1]常菊民,王薇,何域.双星形中性点不平衡电流保护的公式推导与分析[J].电力电容器与无功补偿,2009,30(04):29-31+43.

CHANG JU-MIN, WANG WEI, HE YU. The Deduction and Analysis of the Protection Formula of the Neutral Unbalanced Current in Double-star Connection. [J]. Power capacitor & reactive power compensation, 2009, 30(4): 29-31.
[1]常菊民,王薇,何域.双星形中性点不平衡电流保护的公式推导与分析[J].电力电容器与无功补偿,2009,30(04):29-31+43. DOI：

CHANG JU-MIN, WANG WEI, HE YU. The Deduction and Analysis of the Protection Formula of the Neutral Unbalanced Current in Double-star Connection. [J]. Power capacitor & reactive power compensation, 2009, 30(4): 29-31. DOI：

摘要

为确保装置安全可靠经济地运行

运用电工原理对双星形接线的电容器装置的中性点不平衡电流的计算公式进行推导

并对不同形式的双星形接线适用公式加以讨论并整理

以便继电保护时能准确地计算中性点不平衡电流

确定合理的整定值。

Abstract

In order to ensure the power capacitor device safe and economic operation

this paper deduces the calculation formula of neutral unbalanced current in double star connection of power capacitor device in accordance with the principles of electric engineering.It also discusses and collects the applicable formula of different types of double star connection

so to accurately calculate the neutral unbalanced current in relay protection and determine the reasonable settings.

关键词

电容器装置不平衡电流外熔断器内熔丝

Keywords

capacitor installationunbalance currentExternal fusesInternal fuses

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