Analysis of Errors in Theoretical Line Loss Calculation for 10 kV Line Users

LI Haifeng（Shaoxing Branch of SGCC，Shaoxing 312000，Zhejiang Province，China）

 

 

Abstract：The line loss of 10 kV line users is generally calculated by the theoretical line loss formula, but under a wide range of conditions，so these conditions and possible errors from the use of this calculation method are mainly analyzed here and the actual examples are employed to explain the errors in theoretical line loss calculation and finally propose a more precise calculation method.

Key words：10 kV line；substation；line loss rate；theoretical line loss；actual line loss；power factor；error；power consumption

 

    摘 要：10 kV专线供电用户一般采用理论线损公式计算线损，该计算公式的应用存在一系列的前提条件，主要分析这些前提条件和计算方法可能导致的误差，并通过实际算例具体阐述理论线损计算的误差，最后提出较为精确的计量方法。

    关键词：10 kV专线；变电所；线损率；理论线损；实际线损；功率因数；误差；用电量

     中图分类号：TM714. 3      文献标识码：A

     doi：10. 3969 / j. issn. 1003 - 8493. 2016. 03. 007