摘要
在煤矿井下低压供电系统计算中,要校验电动机的启动,通常的计算方法是用启动电流来校验,误差较大.本文提出用全阻抗计算电动机在启动时的端电压,比用启动电流的方法计算更接近实际,较为准确.
In the designing of coal mine underground low-voltage power supply system,we must check the minmum terminal voltage of the electrical motor with the maximum capacity at the starting phase.The normal calculation method would use ＂Starting Current＂,but the deviation wolud be huge.This article provides a method using ＂All-impedance Characteristics＂,it could be more accurate regarding to the actual situations.
出处
《山西大同大学学报（自然科学版）》
2010年第6期75-76,85,共3页
Journal of Shanxi Datong University(Natural Science Edition)
关键词
供电单元
启动阻抗
额定阻抗
启动电流
额定电流
电压损失
electric suppiy uint
start-up impedance
nominal impedance
start-up cuttert
voltage loss
