GB/T 15544短路电流计算与实用短路计算比较分析

Comparison and analysis of GB/T 15544 short circuit current calculation and practical short circuit calculation

在配电系统设计中,短路电流是一项十分重要的计算内容。GB/T15544标准与国际电工协会(IEC)修订的短路电流计算国际标准IEC60909一致,旨在允许的准确度下,搭建一种工程实用的求取结果的过程。从概念、计算方法对照介绍了GB/T 15544的短路电流计算与国内广泛采用的实用计算异同,最后通过工程算例对短路电流计算结果进行分析,为广大设计者选取短路电流计算准则提出参考性见解。

Short-circuit current calculation is a very important part of the design in the distribution system.GB/T 15544 standard is the equivalent of the International Electrotechnical Commission(IEC)short circuit current calculation formulation of the international standard IEC 60909,in order to allow the accuracy,build a practical process of getting the result.The similarities and differences of widely used in practical calculation and GB/T 15544 short-circuit current calculation is introduced from the concept,calculation the method.finally through the engineering example,the short-circuit current calculation results are analyzed,selection of short-circuit current calculation standards is provided for the designers.