Division Formula 1

United Kingdom

η_{{EI}_{i}} = \frac{60 \times U_{i} \times I_{i}}{2π \times M_{i} \times n_{i}} \times 100

All efficiency measurements are to be performed consecutively at least five (5) times. The average of the measurements at each operating point ( $\bar{η_{{EI}_{i}}}$ ) has to be calculated.

The efficiency of the eco-innovative alternator (η_EI) shall be calculated in accordance with Formula 2.