Useful calculator for induction motors

Induction Motor Data
Free
Offline
http://pp.kpnet.fi/ijl/prog.htm

The program motdatpr calculates the inductances and resistances of the (well known) equivalent circuit of the induction motor from the "name-plate" parameters. These are the nominal voltage and power, the nominal slip, electrical efficiency, power factor and the ratio of locked rotor current and nominal current.