HW due Next Monday. March 9 th 1) A 3 phase, 125HP, 440 V induction motor has a full load efficiency of 86 % and a power factor of 85 %. Calculate the nominal current per phase of the motor under full load. 2) Using the wheel and converting to a parallel equivalent impedance (method is on H drive), what value of capacitor per phase will correct the Pf to unity for the above motor when operating at full load? 3) Repeat question 2 above if the motor is at 25% load. (Recall that less load means more impedance).
1) A 3 phase, 125HP, 440 V induction motor has a full load
efficiency of 86 % and a power factor of 85 %. Calculate the
nominal current per phase of the motor under full load.
2) Using the wheel and converting to a parallel equivalent
impedance (method is on H drive), what value of capacitor per phase
will correct the Pf to unity for the above motor when operating at
full load?
3) Repeat question 2 above if the motor is at 25% load. (Recall
that less load means more impedance).
