Voltage Sag Calculator
Use this voltage sag workflow as a power-quality screening estimate when available fault current and a load-current step are known.
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Transformer kVA, transformer current, generator sizing, and power-quality support workflows.
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Transformer Voltage Drop Calculator
Use this transformer voltage-drop workflow as a screening estimate when resistance percent, reactance percent, load percent, and power factor are known.
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Transformer Voltage Ratio Calculator
Use this simple transformer ratio workflow for ideal voltage-ratio checks. It does not evaluate taps, regulation, impedance, or winding configuration.
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Transformer Inrush Current Calculator
Enter transformer kVA, voltage, phase, and the inrush multiplier from equipment data or a planning assumption to estimate a screening inrush value.
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Transformer kVA Calculator
Use this transformer kVA workflow for a quick apparent-power estimate from entered voltage and current. It does not select or approve transformer equipment.
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Transformer Current Calculator
Use this transformer current workflow to convert kVA into primary and secondary current estimates. It is not conductor, breaker, fuse, or equipment selection.
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Transformer Impedance Calculator
Use this transformer impedance workflow for per-unit arithmetic checks. It does not replace a fault-current study or equipment rating review.
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Power Factor Correction Calculator
Enter kW, current power factor, target power factor, system voltage, and phase to estimate required correction kVAR and apparent-current reduction.
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Harmonic Distortion Calculator
Enter the fundamental and selected harmonic RMS values to calculate THD and each listed harmonic as a percentage of the fundamental.
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Generator Size Calculator
Use this generator sizing workflow for early load planning. It keeps starting watts and margin visible but does not choose a listed generator or approve transfer equipment.
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Capacitor Bank Size Calculator
Use this capacitor bank sizing workflow for early power-factor correction screening when you need both kVAR and capacitance math.
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Buck-Boost Transformer Calculator
Use this buck-boost transformer workflow for early voltage-change kVA screening when supply voltage, target voltage, load current, phase, and sizing multiplier are known.
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