Motor power calculation formula

Apparent power S = UI Active power P = UIcos theta Reactive power Q = UIsin theta. The square of the square of the apparent power = active electric vehicle motor power + square of reactive power Motor power calculation formula is: 3 P =) uicos theta eta The P - rated power output shaft of the motor U - rated voltage I - rated current The power factor of cosine Motor vehicle theta - motor Eta, the efficiency of the machine Cosine theta power factor (pf) refers to the consumption of motor power of the ratio of apparent power. Eta motor efficiency refers to the ratio of the output power of active power. Such as active power consumed by an electric motor is 5 kw, and as a result of the motor coil impedance,

 so be electric consumption and fever. www.dongfeng-motor.com The power output 4.5 kw, then its

efficiency is 4.5/5 = 0.9.