A Study on the Variation of the Power Factor according to the Multiples of the 3-phase Induction Motor Starting Current

被引：0
作者：
Kim J.-G. [1 ]
机构：
[1] Dept. of Electrical Engineering, Gangueung-wonju National University
来源：
Transactions of the Korean Institute of Electrical Engineers | 2020年 / 69卷 / 11期
关键词：
Induction motor; Power factor; Reactive power; Starting current; Voltage drop;
D O I：
10.5370/KIEE.2020.69.11.1773
中图分类号：
TM34 [交流电机];
学科分类号：
摘要：
Induction motor is one of the most representative inductive loads. Induction motor is a rotating electric device unlike a transformer, and its power factor is different between starting and normal operation. In particular, the power factor of starting is lower than during normal operation. This is because the proportion of reactive power required to form a rotating magnetic field at the initial starting is higher than the amount of active power associated with the output. Induction motor is mainly used in places that require a fast rotation speed. Induction motor can be quickly acquired at rated torque when directly starting, but have a disadvantage in that a voltage cliop occurs due to high current generated at starting, hi addition to affecting the voltage drop, the size of the starting current can also affect the power factor until the rated speed is reached according to the duration, hi this study, we analyzed changes in power, power factor, and voltage drop in the process of reaching the rated speed from starting when the multiples of the starting current were different for induction motors of the same capacity. © 2020 Korean Institute of Electrical Engineers. All rights reserved.
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页码：1773 / 1777
页数：4
相关论文
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