Ocena możliwości zastosowania określonego schematu cieplnego silnika indukcyjnego w szerszym zakresie mocy znamionowych

The paper presents assessment abilities make use the basic and three simplifies thermal equivalent diagram of induction motor to monitoring temperatures on broader range of nominal power induction motors. In article discussed assumption form construction thermal equivalent diagram, and possibility make us them to monitoring temperature of induction motor. The monitoring of heating of induction motor is presented for example two motors, on power 3 kW and 18,5 kW. Presents verification measurements increase temperatures in 3 kW and 18,5 kW induction motor on measurements station. Precision of computer simulations was compare with basing thermal equivalent diagram - verifying in laboratory measurements In the end of paper author presents conclusion from computer simulation and laboratory measurements, who was application this method in practical application and what are the limits of power motors to make us the same thermal equivalent diagrams.