1.1.1 How is the active power "P" of a 400V aluminum motor calculated?
An example:
A 400 volt three-phase standard motor has a rated current of 25.18 amperes and a cos φ of 0.86.
What electrical power output results from this information?
P = U x I x cos φ x √3
P = 400V x 25.18A x 0.86 x √3
P = 15.003 kW or 15 kW
Units of measurement:
Active power P = kilowatt [kW]
Voltage U = Volt [V]
Current I = Ampere [A]
cos φ without
√3 or 1.73 without
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