DETERMINATION OF INTERBAR CURRENT EFFECTS IN THE DETECTION OF BROKEN ROTOR BARS IN SQUIRREL-CAGE INDUCTION-MOTORS

被引：34
|
作者：
WALLISER, RF
LANDY, CF
机构：
[1] Dept. of Electrical Engineering, University of the Witwatersrand, Johannesburg
来源：
IEEE TRANSACTIONS ON ENERGY CONVERSION | 1994年 / 9卷 / 01期
关键词：
BROKEN ROTOR BARS; INTERBAR CURRENTS; CURRENT MONITORING; MAGNETIC IMBALANCE;
D O I：
10.1109/60.282486
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In present monitoring techniques for the detection of broken rotor bars in squirrel cage induction motors, the assumption is made that a broken bar conducts no current. This causes a magnetic imbalance, which can then be detected to indicate a broken bar. In certain motors, however, large currents are still able to flow in the broken bar by means of interbar currents[1]. This paper deals with the effects these currents have on broken bar monitoring. The work shows theoretically and experimentally that interbar currents reduce any magnetic imbalance brought about by the broken bar.
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页码：152 / 158
页数：7
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