Efficiency Improvements by Special Motors

Power loss area

Efficiency
improvement

1. Iron 

Use of thinner gauge, lower loss core steel reduces eddy current
losses. Longer core adds more steel to the design, which reduces losses due
to lower operating flux densities.

2. Stator I²R

Use of more copper and large conductors increases cross sectional
area of stator windings. This lower resistance (R) of the windings and
reduces losses due to current flow (I).

3. Rotor I²R

Use of larger rotor conductor bars increase size of cross section,
lowering conductor resistance (R) and losses due to current flow (I).

4. Friction and Windage

Use of flow loss fan design reduces losses due to air movement.

5. Stray Load Loss

Use of low loss fan design and strict quality control procedures
minimizes stray load losses.