Motors calculators

Motor current, starting-current and voltage-dip calculation workflows.

3 calculators
Australian workflow
230/400 V a.c. context

CalculatorMotor full-load current calculatorEstimate motor FLC from nameplate or design values.Inputs: kW, voltage, phase, power factor and efficiency.Output: Current estimate to compare with nameplate and product data.
CalculatorMotor starting current calculatorEstimate starting current using selected starting method multipliers.Inputs: FLC and DOL, star-delta or drive-related multiplier assumptions.Output: Starting-current estimate for voltage-dip and protection review.
CalculatorMotor voltage dip calculatorEstimate motor-start voltage dip using source and starting-current values.Inputs: Starting current, source impedance and supply voltage.Output: Voltage-dip estimate requiring site and equipment review.

Calculation tools, structured tables, charts and guides for Australian electrical work using local terms, metric conductor sizes and 230/400 V, 50 Hz context.

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