When the powers differ by more than a factor of 2, this averaging is too inaccurate,
and the calculations must be done with the mean current taken from the
motor characteristics.
Example: In an automatic industrial handling machine the following load cycles
are determined for a cycle duration of 10 minutes:
6 kW for 3 minutes, 3 kW for 2 minutes, 7 kW for 2 minutes, 2 kW for 3 minutes:
What is the mean load?.