【摘要】 通过对电源电压波形畸变率的测试 ,分析了影响畸变率大小的原因 ,阐述了当电源电压波形畸变率较大时 ,电动机运行性能将变坏 ,同时对仪器仪表的读数也会产生一定影响 ,使试验结果出现误差 .因此 ,在三相感应电动机的型式试验中 ,首先必须测试电源电压的波形畸变率 .只有当其符合国家标准时 ,才能准确分析判断被试电动机的质量 .这就为电动机的试验和科研提供了可靠保证 .更多还原

【Abstract】 The causes for aberration rate are analyzed by testing the wave form aberration rate of supply voltage.It is disposed that the operation of the AC motor will deteriorate when the wave form aberration rate of the supply voltage is great,thus influencing the readings of the meters and causing errors in the test result.Therefore the wave form aberration rate must first be tested in the full scale test of tree?phase induction motor.Only when it complies with national standard,can the quality of tested motor be accurately analyzed,and determined,which provides a reliable assurance for motor test and scientific research.更多还原