Discussion on Some Technical Problems of Series Capacitor Compensation Device of 10 kV Distribution Line

LIANG Chen; ZHONG Junmin; HUANG Xueyong; LONG Yubao; YI Chunhui

doi:10.14044/j.1674-1757.pcrpc.2019.04.003

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Discussion on Some Technical Problems of Series Capacitor Compensation Device of 10 kV Distribution Line

更新时间：2024-09-14

- Discussion on Some Technical Problems of Series Capacitor Compensation Device of 10 kV Distribution Line
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 4, Pages: 11-15(2019)
- 作者机构：
  
  桂林电力电容器有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.04.003
  CLC： TM761.12
- Published：2019，
- 稿件说明：
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[1]梁晨,钟俊敏,黄雪勇,龙玉保,易春回.10 kV配网线路串联电容器补偿装置的若干技术问题探讨[J].电力电容器与无功补偿,2019,40(04):11-15.

LIANG CHEN, ZHONG JUNMIN, HUANG XUEYONG, et al. Discussion on Some Technical Problems of Series Capacitor Compensation Device of 10 kV Distribution Line. [J]. Power capacitor & reactive power compensation, 2019, 40(4): 11-15.
[1]梁晨,钟俊敏,黄雪勇,龙玉保,易春回.10 kV配网线路串联电容器补偿装置的若干技术问题探讨[J].电力电容器与无功补偿,2019,40(04):11-15. DOI： 10.14044/j.1674-1757.pcrpc.2019.04.003.

LIANG CHEN, ZHONG JUNMIN, HUANG XUEYONG, et al. Discussion on Some Technical Problems of Series Capacitor Compensation Device of 10 kV Distribution Line. [J]. Power capacitor & reactive power compensation, 2019, 40(4): 11-15. DOI： 10.14044/j.1674-1757.pcrpc.2019.04.003.

摘要

本文采用相量图和数学方法分析提高10 kV长线路末端电压的配网串联电容器补偿装置（以下简称:配网串补装置或串补装置）。提出配网串补装置最佳安装点的概念。研究串补装置的安装点、容抗值范围及线路功率因数与串联电容器极间电压的关系。对比内熔丝、外熔丝、无熔丝电容器的特点

得出内熔丝电容器较适用于配网串补装置的结论。提出线路功率因数较低的情况下

可能存在人为抬高串联电容器额定电压的情况

此时串联电容器内熔丝动作下限电压宜由用户与生产厂家协商确定

以确保配网串补装置安全运行。

Abstract

In this paper

phasor diagram and mathematical method is used to analyze the series capacitor compensation device of distribution grid and improve terminal voltage of 10 kV long line（Hereinafter referred to series compensation device of distribution grid）. The concept of best installation point of the series compensation device of distribution grid is proposed.The installation point

capacitive reactance range and the relationship between power factor of line and inter-pole of series capacitor are studied.By comparing the characteristics of internal fuse

external fuse and fuseless capacitors

it is concluded that the internal fuse capacitor is suitable for the series compensation device of distribution grid. It is mentioned that in case of low power factor of line

the artificial rise of rated voltage of series capacitor is possibly existed. At this time

the lower limit voltage for the internal fuse of series capacitor shall be determined between the customer and the manufacturer so to assure safe operation of series compensation device of distribution grid.

关键词

配网串联电容器补偿装置最佳安装点线路功率因数内熔丝

Keywords

series capacitor compensation device of distribution gridbest installation pointpower factor of lineinternal fuse

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