Home / Utilities
Power and current in single- and three-phase circuits, voltage drop and cable size, breakers and short-circuit current, power factor correction, load schedules and industrial lighting.
Convert power to current and back: kW, kVA, kvar and hp to amps for single-phase, line-to-line and three-phase circuits, with power factor, efficiency, and winding voltage and current in wye and delta.
kW, hp, kVA ↔ ampsSize 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, coordinationCompute 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, paybackPaste your load list from Excel and spread it over phases A, B and C automatically or keep the phases you set; get phase and neutral currents, unbalance, total demand and feeder current.
Phases, unbalance, demandSize warehouse and plant lighting with the lumen method: room index, utilization factor, ISO/CIE 8995-1 illuminance, number and layout of fixtures, W/ft², annual energy and LED retrofit savings.
Lumens, fixtures, W/ft²Correct the megohmmeter reading to 40 °C, compute the polarization index and absorption ratio, compare with the IEEE 43-2013 minimums, check the test voltage and track the inspection trend of motors and generators.
Megger, PI, IEEE 43 minimumClassify hot spots in panels, connections, breakers and cables by temperature difference (NETA criteria), correct for inspection load and estimate the temperature at full load.
ΔT, NETA, priority, loadCompare 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, paybackImportant 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.
© 2026 Indus Metrics. Found an error? Write to contato@seudominio.com.