Title :
Insulation of small and medium size motors-IGBT inverter fed
Author :
Bell, Sidney ; Sung, Jason
Abstract :
Motors connected to an IGBT ASD may experience high voltage peak stresses which increase the possibility of failure. If an IGBT ASD is being installed as a replacement to an existing drive, the system setup must be reviewed to reduce or eliminate the peak voltage stress. The cleanliness and condition of the motor being driven must be considered and the user should be especially careful when applying fractional horsepower motors to ASDs. In the specification of new motors, the motor manufacturer should be aware of the circumstances of the system including a prediction of peak voltage potential. At this time, special insulation is recommended for motors operating on IGBT inverter-fed adjustable speed drives above 450 V
Keywords :
DC-AC power convertors; bipolar transistor switches; electric breakdown; fractional-horsepower motors; insulated gate bipolar transistors; invertors; machine insulation; motor drives; power bipolar transistors; power semiconductor switches; small electric machines; variable speed drives; ASD; IGBT inverter; adjustable speed drive insulation; fractional horsepower motors; insulation failure; peak voltage potential; peak voltage stress; Aging; Coils; Corona; Frequency; Insulated gate bipolar transistors; Insulation; Inverters; Thermal stresses; Variable speed drives; Voltage;
Conference_Titel :
Electric Machines and Drives Conference Record, 1997. IEEE International
Conference_Location :
Milwaukee, WI
Print_ISBN :
0-7803-3946-0
DOI :
10.1109/IEMDC.1997.604333
