After first selecting the letter code corresponding the the motor's nameplate, select the motor's power unit of measurement,
enter values for power, volts and power factor and select the power phase. Its that easy to calculate the motor's locked-rotor
amperage and the kilowatts and kilovolt amperes required for safe motor startup. The calculated results can be posted to the main
Circuit Load Analysis module for further analysis.
This module is necessary for sizing a generator that is used in conjunction with electric motors.
The generator must be sized to supply the motor's startup amperage to prevent damage to the motor and
protection devices from disengaging. Also as necessary, this module is used for
Short Circuit and Arc Flash Analysis for the motor contribution values to a
circuit when a fault is initiated.
The module's simple interface comprises a list box of the motor nameplate letter codes in the same format as NEC® Table 430.7(B),
a list box of several motor nameplate real power units ,1, 2 or 3 Phase power, Power Factor, Volts, and Power Value.
From there Volts does all the work.