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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
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Title Errors of Proportional Shifting due to Simplified Equivalent Circuit of a 3-Phase Induction Motor
Authors Myoung-Ho Shin
DOI http://dx.doi.org/10.5207/JIEIE.2013.27.1.109
Page pp.109-112
ISSN 1225-1135
Keywords Induction Motor ; Proportional Shifting
Abstract It is well known that the maximum torque of a 3-phase induction motor does not vary as the resistance of rotor varies by proportional shifting. However, proportional shifting is derived using simplified equivalent circuit of induction motor. Therefore, there are some errors in the torque characteristics shown in the text book. This paper presents the torque characteristics using not simplified equivalent circuit but equivalent circuit. Errors produced by simplified equivalent circuit are presented.