Title :
Rating considerations for squirrel cage induction motors operated with variable frequency drives
Author :
Link, Patrick J.
Author_Institution :
Allen-Bradley Co., Milwaukee, WI, USA
Abstract :
The author addresses rating considerations for squirrel cage induction motors operated with variable-frequency drives. The motors addressed are assumed to be larger than 20 HP and of three-phase design. It is shown that for the majority of applications, consisting of centrifugal fans or pumps, standard motors with 1.15 to 1.2 service factors can be rerated for inverter use with 1.0 service factors. For more rigorous applications, such as constant torque, constant horsepower, or reciprocating loads, the selection of motors more suited for inverters has been gaining popularity.<>
Keywords :
electric drives; invertors; squirrel cage motors; centrifugal fans; constant horsepower; constant torque; inverter; pumps; reciprocating loads; squirrel cage induction motors; three-phase; variable frequency drives; AC motors; DC motors; Electric breakdown; Frequency; Induction motors; Inverters; Rotors; Synchronous motors; Torque control; Voltage;
Conference_Titel :
Pulp and Paper Industry Technical Conference, 1991., Conference Record of 1991 Annual
Conference_Location :
Montreal, Quebec, Canada
DOI :
10.1109/PAPCON.1991.239646
