The worldwide energy transition is accelerating the electrification of industrial and transport networks. In this scenario, induction motors are still widely used due to their robustness and simplicity. Moreover, their usage in high-performance applications with innovative cooling methods is increasing considerably. Cryogenic electric motors have already found their application in several state-of-the-art applications, such as LNG cryogenic pumps, aerospace actuators, and superconducting systems, where the low-temperature operation leads to higher conductivity and lower thermal losses. The thesis investigates the performance of a 15 kW squirrel-cage induction motor under ambient and cryogenic temperatures to evaluate the performance improvement offered by cryogenic cooling.