电动机全压及带电抗器起动计算  

Calculation of Motors Started with Full Voltage and Electric Reactor

作　　者：王明全 

机构地区：[1]重庆市轨道交通设计研究院,重庆市401122

出　　处：《建筑电气》2015年第2期3-11,共9页Building Electricity

摘　　要：电动机起动时母线电压及端电压的验算是保证电动机、照明、电气设备正常运行的必要设计步骤,也是电气设计计算的难点。相关设计手册给出的电动机起动时母线电压及端电压的计算公式,笔者经过推演发现有的公式表达不完整或有错误,故重新推导了电动机全压起动及带电抗器起动时,母线电压相对值及电动机端电压相对值计算公式。Checking calculation of bus and terminal voltages, also the difficult point in electric design, is required during the motor starting in order to ensure the normal operation of motor, lighting and electric equipment. The author found out that the calculation formula provided in related design manual is incomplete or incorrect, so the author induces again the formula for calculating the relative values of the bus and terminal voltages when the motor starts in full voltage and with electric reactor.

关 键 词：电动机 全压起动 带电抗器起动 母线电压 母线电压相对值 电动机端电压 电动机端电压相对值 起动电流 

分 类 号：TU852[建筑科学]