In this experiment, we have continued to measure the power supply three phase induction motor, and the harmonics of the motor by the Knicks with the inverter and voltage switching power supply with frequency inverter and replace load by adjusting the adjustable resistance values. And then notice the results from FLUKE 43B and PZ4000 and compare values between the voltage supply with inverter and the switching power supply. I found that when I pay with inverter voltage THD values than when it is paid with a switching power supply voltage directly at the same frequency.
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