Motors and drives, power factor, voltage drop and cable sizing, breakers and short circuit.
Compare the current motor, a NEMA Premium/IE4 motor and a variable frequency drive for pumps and fans with flow profile, rewinds and payback. Based on NEMA MG 1, IEC 60034-30-1 and DOE 10 CFR 431.
NEMA Premium, IE4, VFD, load profile, paybackCompute capacitor bank kvar to reach the target power factor, the drop in current and losses and the end of reactive or demand penalties, with payback.
kvar, reactive charges, paybackSize copper or aluminum conductors by ampacity with temperature and bundling adjustment and by voltage drop, plus the economic size that cuts losses, in AWG/kcmil or mm².
AWG, mm², drop, lossesPick the breaker from load current and conductor ampacity, estimate maximum fault current at the panel and minimum at the far end, and check instantaneous trip and interrupting rating.
Rating, trip, kA, coordinationChoose the induction motor from the load, drive, duty cycle, altitude and temperature, check across-the-line, star-delta, soft starter or VFD starting and see current and voltage dip.
Power, duty, starting, currentImportant notice: Indus Metrics tools produce estimates and pre-sizing results from the data you enter and from published engineering methods. They do not replace design, calculations or reports signed by a licensed professional engineer (PE), nor verification against the applicable codes, standards and regulations, such as OSHA rules and the ASME codes. Material and fuel properties vary: check manufacturer data or your own process analyses before deciding. By using this site you agree to the Terms of Use.
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