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A comparison with insulation system for PWM-inverter-fed induction motors

The winding insulation of low-voltage induction motors in adjustable-speed drive system with voltage-fed inverters is substantially stressed due to the uneven voltage distribution and excessive voltage stress (dv/dt), which result in the premature insulation breakdown. This paper describes test resu...

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Main Authors:	Don-Ha Hwang, Doh-Young Park, Yong-Joo Kim, Young-Hoon Lee, Dong-Hee Kim, In-Woo Lee, Ick-Goo Hur
Format:	Conference Proceeding
Language:	English
Subjects:	Breakdown voltage Capacitance Induction motors Insulation testing Partial discharges Performance evaluation Pulse width modulation Pulse width modulation inverters Stress Variable speed drives
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container_end_page	75 vol.1
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creator	Don-Ha Hwang Doh-Young Park Yong-Joo Kim Young-Hoon Lee Dong-Hee Kim In-Woo Lee Ick-Goo Hur
description	The winding insulation of low-voltage induction motors in adjustable-speed drive system with voltage-fed inverters is substantially stressed due to the uneven voltage distribution and excessive voltage stress (dv/dt), which result in the premature insulation breakdown. This paper describes test results of the insulation characteristics from 20 HP, 380 V induction motors for inverter applications. Five different types of insulation techniques are applied to 19 induction motors. The insulation characteristics are compared to partial discharge, capacitance, AC current, and dissipation factor tests. Also, the insulation breakdown tests by high voltage pulses are performed, and the corresponding breakdown voltages are obtained.
doi_str_mv	10.1109/ICEMS.2001.970612
format	conference_proceeding
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Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)</btitle><stitle>ICEMS</stitle><date>2001</date><risdate>2001</risdate><volume>1</volume><spage>72</spage><epage>75 vol.1</epage><pages>72-75 vol.1</pages><isbn>7506251159</isbn><isbn>9787506251150</isbn><abstract>The winding insulation of low-voltage induction motors in adjustable-speed drive system with voltage-fed inverters is substantially stressed due to the uneven voltage distribution and excessive voltage stress (dv/dt), which result in the premature insulation breakdown. This paper describes test results of the insulation characteristics from 20 HP, 380 V induction motors for inverter applications. Five different types of insulation techniques are applied to 19 induction motors. The insulation characteristics are compared to partial discharge, capacitance, AC current, and dissipation factor tests. 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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Breakdown voltage Capacitance Induction motors Insulation testing Partial discharges Performance evaluation Pulse width modulation Pulse width modulation inverters Stress Variable speed drives
title	A comparison with insulation system for PWM-inverter-fed induction motors
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