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고압전동기 권선절연물 열전도와 냉각 특성의 정량적 상관성에 관한 연구

Effect of Thermal Conductivity of Coil Insulator Material on the Temperature Variation of High Voltage Motor

Journal of the Korean Society for Precision Engineering 2020;37(5):355-360.
Published online: May 1, 2020

1 창원대학교 기계공학부 대학원

2 효성중공업연구소

3 창원대학교 기계공학부

1 School of Mechanical Engineering, Graduate School, Changwon National University

2 Hyosung Co., Ltd.

3 School of Mechanical Engineering, Changwon National University

#E-mail: heesungpark@changwon.ac.kr, TEL: +82-55-213-3609
• Received: August 29, 2019   • Revised: February 5, 2020   • Accepted: March 7, 2020

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Improved thermal conductivity of anticorona insulation paint for high-voltage motor application
    Xia Zhao, Hui Zhang, Yongxin Sun, Tiandong Zhang
    Journal of Materials Science: Materials in Electronics.2023;[Epub]     CrossRef

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Effect of Thermal Conductivity of Coil Insulator Material on the Temperature Variation of High Voltage Motor
J. Korean Soc. Precis. Eng.. 2020;37(5):355-360.   Published online May 1, 2020
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J. Korean Soc. Precis. Eng.. 2020;37(5):355-360.   Published online May 1, 2020
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Effect of Thermal Conductivity of Coil Insulator Material on the Temperature Variation of High Voltage Motor
Image Image Image Image Image Image Image Image Image
Fig. 1 Cross sectional view of stator coil in power generator
Fig. 2 Schematic diagram of power generators
Fig. 3 Generated grids in the numerical simulations
Fig. 4 Exemplary temperature distribution in the power generator (Model 1). The highest temperature presents at the coil surface
Fig. 5 Exemplary temperature distribution in the power generator (Model 2). The reduced temperature is calculated due to the different materials
Fig. 6 The temperature differences are obtained with respect to the thermal conductivity (Model 1). Coil and core are highly dependent on the thermal conductivity
Fig. 7 The temperature differences are obtained with respect to the thermal conductivity (Model 2). The dependency of thermal conductivity is reduced in the model 2 due to the installed cooling part
Fig. 8 The obtained sensitivity of temperature rise against the components for model 1
Fig. 9 The obtained sensitivity of temperature rise against the components for model 1
Effect of Thermal Conductivity of Coil Insulator Material on the Temperature Variation of High Voltage Motor

Thermal conductivity measurements

Inside of stator slot Stator coil end
Thermal
conductivity
[W/m K]
k rad k tang k axial k rad k tang k axial
No. 1 High High 379 High High 379
No. 2 Middle Middle 379 Middle Middle 379
No. 3 Low Low 379 Low Low 379
No. 4 High High 379 High High 379
No. 5 Middle Middle 379 Middle Middle 379
No. 6 Low Low 379 Low Low 379
Table 1 Thermal conductivity measurements