Mobile QR Code QR CODE : The Transactions P of the Korean Institute of Electrical Engineers
The Transactions P of the Korean Institute of Electrical Engineers

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleTrans. P of KIEE
  • Indexed by
    Korea Citation Index(KCI)
Title Power Factor Compensation of Induction Motor by Variation of Number of Poles and Load
Authors 김종겸(Jong-Gyeum Kim) ; 김일중(Il-Jung Kim)
DOI http://doi.org/10.5370/KIEEP.2019.68.1.001
Page pp.1-5
ISSN 1229-800X
Keywords Capacitor ; Induction motor ; Power factor compensation ; Reactive power ; Self-excitation ; Voltage-drop
Abstract Induction motors are a typical inductive load. Since the inductive load has a low power factor, it is necessary to compensate the power factor so that it can be maintained above a certain level. To raise the power factor beyond a certain level, a capacitive load capacitor is used. An induction motor is presented with a capacitor capacity for power factor compensation based on voltage and output. In fact, the power factor of the induction motor varies slightly depending on the number of poles, and also depending on the increase or decrease of the load. This paper presents a method for selecting the optimum capacitor for the power factor which depends on the variation of the load and the poles in the same output motor.