Title :
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
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;
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
Print_ISBN :
0-7803-3587-2
DOI :
10.1109/PCICON.1996.564862
