A comparison between insulation systems available for PWM inverter fed motors

Author

Bonnett, Austin H.

Author_Institution

US Electrical Motors Div., Emerson Electr. Co., St. Louis, MO, USA

fYear

1996

fDate

23-25 Sep 1996

Firstpage

49

Lastpage

60

Abstract

This paper establishes the need for two levels of motor insulation systems depending upon the available voltage waveform. An analysis of the various winding stresses is presented. The different requirements for the two insulation systems is discussed (MG1-Parts 30 and 31 for General Purpose and Definite Purpose Inverter Fed Motors), and test results show the need for higher dielectric insulations when the voltage levels of Part 30 are exceeded. The differences between existing, rebuilt and new motors is also explored

Keywords

AC motors; PWM invertors; insulation testing; machine insulation; machine testing; Definite Purpose Inverter Fed Motors; General Purpose Inverter Fed Motors; MG1-Part 30; MG1-Part 31; PWM inverter fed motors; existing motors; higher dielectric insulations; insulation systems; new motors; rebuilt motors; voltage levels; voltage waveform; winding stresses; Dielectric breakdown; Dielectric materials; Dielectrics and electrical insulation; Electric resistance; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation inverters; Stress; Temperature; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Petroleum and Chemical Industry Conference, 1996, Record of Conference Papers. The Institute of Electrical and Electronics Engineers Incorporated Industry Applications Society 43rd Annual

Conference_Location

Philadelphia, PA

ISSN

0090-3507

Print_ISBN

0-7803-3587-2

Type

conf

DOI

10.1109/PCICON.1996.564862

Filename

564862