也谈电动机启动计算及校验  

Dicussion on Motor Starting Calculation and Verification

作　　者：于东晓 李达志 YU Dongxiao;LI Dazhi(Sinopharm Chongqing Pharmaceutical and Medical Industry Design Institute Corporation,Chongqing 400042,China)

机构地区：[1]国药集团重庆医药设计院有限公司,重庆市400042

出　　处：《建筑电气》2018年第7期19-27,共9页Building Electricity

摘　　要：《建筑电气》2016年第6期"电动机启动时电压暂降计算法之考证与改进"一文以及《工业与民用供配电设计手册》(第4版)均指出了原设计手册关于电动机启动计算公式存在的错误,并提出新的计算公式。笔者经过推演发现,新的计算公式依旧存在一些不足,本文就此进行分析并提出一些笔者的见解。The error in the motor starting calculation formula in the original design manual is pointed out in both ＂Textual Research and Improvement of Voltage Dip Calculation Method at Starting of Electric Motor＂,Building Electricity（the 6 th edition,2016） and Manuals for Industrial and Civil Power Supply Distribution Designing（the 4 th edition）,and a new calculation formula is proposed.However,the author found that there were still some shortcomings in the proposed formula by way of deduction,and offers some opinions of their own in this paper,in addition to relevant analysis.

关 键 词：电动机启动计算 全压启动 电抗器降压启动 自耦变压器降压启动 短路功率法 阻抗计算法 母线电压及其相对值 电动机端电压及其相对值 

分 类 号：TU852[建筑科学]