At the moment (May 2020) only one calculations program is available : SimPhase Induction Motor Calculations (IMC) Program.
The IMC program first calculates an accurate value for the slip and then calculates all the other steady-state conditions of a three-phase induction motor. Motor can be with or without a VFD speed control. The IMC program does consider the fact that the slip is a function of the stator voltage and a function of the mechanical loading.
Latest update (18.104.22.168) was released in February 2020.
The program requires Windows 7 or a more recent version of Windows.
Download your free version of the IMC program. It is good for three-phase induction motors with power ratings equal to 50 hp or less and without a speed control.
You can buy a license for the full version of the IMC program. The full version can do the calculations for three-phase induction motors of any power ratings and with or without variable frequency drive (VFD) speed controls.
If you have any question, contact me (Pierre Lacasse) at following address: firstname.lastname@example.org