The prototype Alfa IE4 MHR 3P NR5
The small prototype Alfa IE4 MHR 3P NR5 was built and presented at the XXth International Conference on Electrical Machines on September the 2nd, 2012, in Marseille, France. The main features of that small experimental motor include:
| Single stage with all 3 phases set in the same plane | - |
| It incorporates 3 magnets over the electromagnet’s poles | - |
| ICE Size | 80 |
| Nº phases | 3 |
| C.C. Tension (V) | 300 |
| Nominal speed (rpm) | 3.000 |
| Mass (kg) | 8.6 |
The outstanding results produced by this prototype include:
| Nominal power | 1.100 W (1,5 HP) |
| Efficiency | 86,8% |
| Power/mass ratio | 128 W/kg |
| Category - IEC 60034-31 | IE4 (superior) |
The prototype produces 47% more power than an equivalent motor of similar size and weight