A few aspects about the squirrel cage induction motors in variable speed drives

Abstract

The paper deals with standard three phase low voltage squirrel cage motors in variable speed drives. The aim is to investigate the possibility of improving the machines parameters at low speed. The considered industrial motors are the existing ones, having the rated power between 0.55 kW and 37 kW and 4 and 6 pole. The paper presents also an example emphasizing the possibility of improving the machine parameters using a “low tool cost” solution.