Study on low voltage predictive method in distribution area

李峰; 徐有琳; 孙源文; 严俊; 李博

doi:10.3969/j.issn.1009-1831.2017.06.009

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Study on low voltage predictive method in distribution area

更新时间：2026-03-05

- Study on low voltage predictive method in distribution area
- Vol. 19, Issue 6, (2017)
- 作者机构：
  
  1. 国网威海供电公司,山东,威海,264200
  2. 天津天大求实电力新技术股份有限公司,天津,300384
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1009-1831.2017.06.009
  CLC：
- Published：2017
- 稿件说明：
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李峰, 徐有琳, 孙源文, et al. Study on low voltage predictive method in distribution area[J]. 2017, 19(6).
DOI：

李峰, 徐有琳, 孙源文, et al. Study on low voltage predictive method in distribution area[J]. 2017, 19(6). DOI： 10.3969/j.issn.1009-1831.2017.06.009.

摘要

过供电公司掌握的既有配变台区运行数据、台区设备数据和用户用电报装情况，判断发生低电压的用户最大范围，帮助供电公司确定台区可能发生低电压的范围，同时对由于负荷接入不平衡导致的三相不平衡原因引起的低电压进行重点分析，提供接入前的等效电流不平衡度试算方法，通过电流不平衡度数值的增减以及对低电压用户范围的变化判断接入点选择是否合理，在接入前能够避免由于人为因素加剧用户低电压情况的发生。

Abstract

Through the distribution transformer operation da.ta

equipment data

the situation of consumer expanding that powersupply company masters

the maximum low.voltage range is judged

which helps the company determine the possible areas of low.volt.age happening and analyze the reasons of three.phase imbalance byimbalanced loads.This paper provides the calculation method ofequivalent current unbalance degree before installing.By the chang.es of current imbalance value and low.voltage consumers’range

the junctions is determined whether is reasonable to avoid the occur.rence of low.voltage because of the human factors before junction.

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