摘要
在三相异步电动机试验中风摩耗的测试是非常重要的。在国标GB/T 1032-2005中规定风摩耗是通过电动机的空载试验曲线的延长线得到的,电动机教材中也都是这样介绍的。在电机厂,风摩耗是利用专用的曲尺绘制曲线延长线得到的。上述方法,由于手工绘制曲线都存在误差,甚至有时有较大误差,并且手工绘制曲线相对复杂。本文利用曲线拟合的方法对三相异步电动机的风摩耗进行了分析,得到的风摩耗误差较小,而且有利于试验数据的计算机处理。
The mechanical loss test is very important in the three-phase induction motor test. The mechanical loss is specified through the extension cord of motor no-load test curve in the national standard GB/T 1032-2005, so do in the teaching material. In the motor factory usually using the trisquare draw curve extension cord to acquire the mechanical loss. No matter what kind of method, the hand-painted curves exist error, sometimes the error is very big. And the manual drawing curve is relatively complex. In this paper, by using the method of curve fitting analyzed the mechanical loss of three-phase induction motor, smaller error and easier for the computer processing of experimental data.
出处
《电气技术》
2014年第7期12-14,17,共4页
Electrical Engineering
基金
北京市属高校青年拔尖人才项目(CIT&TCD201304111)
北京市教委科技发展计划面上项目(SQKM201211232009)
关键词
三相异步电动机
空载试验
风摩耗
曲线拟合
three-phase induction motor
no-load test
mechanical loss
curve fitting
