MEASURING MOTOR PARAMETERS - Control Technology …
For a BLDC motor apply the ac voltage to one pair of the three wires. In both cases measure the voltage and the current. Remember that the BLDC motor is usually connected in WYE. Thus the readings will be line-to-line. You want the phase values for the voltage, so divide the voltage by 2. The impedance of the BLDC motor phase winding is then- [] []
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