Formula v1.0.0
Motor current
Estimate motor full-load current from shaft output or electrical input without applying efficiency twice.
Open calculator →Resources
Elexorn Engineering Toolbox
Common engineering calculations with versioned formulas, worked examples and direct paths to Elexorn engineering review.
Popular Engineering Tools
Common engineering calculations
Formula v1.0.0
APFC
Estimate reactive-power compensation, current reduction and detuned-reactor screening values.
Open calculator →Formula v1.0.0
Cable voltage drop
Calculate AC voltage drop and receiving voltage from project-specific conductor R/X data.
Open calculator →Formula v1.0.0
Transformer
Calculate three-phase transformer currents, loading and a transformer-only terminal fault-current screen.
Open calculator →Formula v1.0.0
Billet weight
Calculate theoretical billet weight, required length, pieces per tonne and pieces per heat for square, rectangular or round sections.
Open calculator →Formula v1.0.0
Pump power
Estimate hydraulic, shaft and electrical power from flow, head, density and efficiencies.
Open calculator →Formula v1.0.0
Motor torque
Solve the shaft relationship between torque, mechanical power and rotational speed.
Open calculator →Formula v1.0.0
OEE
Calculate availability, performance, quality and OEE without hiding diagnostic values above 100%.
Open calculator →Electrical & Drives
Formula v1.0.0
Motor current
Estimate motor full-load current from shaft output or electrical input without applying efficiency twice.
Open calculator →Formula v1.0.0
APFC
Estimate reactive-power compensation, current reduction and detuned-reactor screening values.
Open calculator →Formula v1.0.0
Cable voltage drop
Calculate AC voltage drop and receiving voltage from project-specific conductor R/X data.
Open calculator →Formula v1.0.0
Transformer
Calculate three-phase transformer currents, loading and a transformer-only terminal fault-current screen.
Open calculator →Formula v1.0.0
VFD braking resistor
Screen braking energy, power, current, resistance and thermal duty from inertia and stop profile—not motor kW alone.
Open calculator →Formula v1.0.0
Motor torque
Solve the shaft relationship between torque, mechanical power and rotational speed.
Open calculator →Energy, APFC & Power Quality
Formula v1.0.0
APFC
Estimate reactive-power compensation, current reduction and detuned-reactor screening values.
Open calculator →Formula v1.0.0
Cable voltage drop
Calculate AC voltage drop and receiving voltage from project-specific conductor R/X data.
Open calculator →Formula v1.0.0
Transformer
Calculate three-phase transformer currents, loading and a transformer-only terminal fault-current screen.
Open calculator →Formula v1.0.0
Pump power
Estimate hydraulic, shaft and electrical power from flow, head, density and efficiencies.
Open calculator →Formula v1.0.0
Hydrogen electrolyser
Screen electrolyser hydrogen production, power required, annual output, normal volume and energy content with explicit reference conditions.
Open calculator →Steel & Continuous Casting
Formula v1.0.0
Billet weight
Calculate theoretical billet weight, required length, pieces per tonne and pieces per heat for square, rectangular or round sections.
Open calculator →Formula v1.0.0
CCM capacity
Calculate theoretical continuous-caster throughput and reverse-calculate casting speed for a target TPH.
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Encoder / billet length
Convert measuring-roll encoder counts and billet length with explicit decoding, gear ratio and calibration factor.
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Negative strip
Calculate the negative-strip interval for sinusoidal mould motion using consistent SI units and a full peak-to-peak stroke.
Open calculator →Water & Utilities
Formula v1.0.0
Pump power
Estimate hydraulic, shaft and electrical power from flow, head, density and efficiencies.
Open calculator →Formula v1.0.0
RO recovery
Calculate reverse-osmosis recovery, concentrate flow, salt rejection and an optional concentration mass balance.
Open calculator →Formula v1.0.0
PPM / dilution
Calculate stock quantity and diluent make-up using C₁V₁ = C₂V₂ on an explicitly consistent concentration basis.
Open calculator →Pharmaceutical & Process
Formula v1.0.0
PPM / dilution
Calculate stock quantity and diluent make-up using C₁V₁ = C₂V₂ on an explicitly consistent concentration basis.
Open calculator →Manufacturing, IIoT & AI
Formula v1.0.0
Encoder / billet length
Convert measuring-roll encoder counts and billet length with explicit decoding, gear ratio and calibration factor.
Open calculator →Formula v1.0.0
OEE
Calculate availability, performance, quality and OEE without hiding diagnostic values above 100%.
Open calculator →Green Hydrogen
Formula v1.0.0
Hydrogen electrolyser
Screen electrolyser hydrogen production, power required, annual output, normal volume and energy content with explicit reference conditions.
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