The prototype specifications are as follows:

• Continuous Rated Output: 1.8 kW @ 3,600 rpm
• Rated Voltage: Three-phase 315 V AC (wire-to-wire RMS)
• Rotor: Surface-mount N52 NdFeB permanent magnet, 10 poles
• Stator: 36 slots, distributed winding, 64 turns per phase, 0.8 mm copper wire, Class H insulation

Package Dimensions: Length 590 mm × Diameter 318 mm, Mass 42 kg

The test equipment and measuring instruments used were those of KATEC, an ISO/IEC 17025 accredited testing laboratory.

Measurement Results

Measurements were taken at the rated operating point (3,604 rpm, rated load).

What was revealed from the measured data:

• Torque output is 5 times higher
• Efficiency has increased to 267%
• One of the three phases clearly generates power.

Generally, when there is “three-phase imbalance,” efficiency decreases and heat generation increases. However, this motor shows improved efficiency and reduced heat generation.