CALCULATE WITH CONFIDENCE

Engineering · Electrical, Electronics & Control

Electrical Power Systems Workbench Calculator

Analyze single- and three-phase power, power-factor correction, conductor voltage drop, network equivalents, per-unit quantities, demand, generator frequency and energy-cost scenarios.

Engineering · Electrical, Electronics & Control

Enter the engineering model

Explicit properties, geometry, units and assumptions
  1. 1EnterProvide the known values
  2. 2CalculateResults update automatically
  3. 3VerifyReview the details and units
Try an example
Visual modelSchematic · not to scale
Electrical, Electronics & Control: single visual explanationA simplified diagram showing the relationship represented by the selected calculator mode. It is explanatory and not a fabrication, safety or scale drawing.input → network → output
The diagram explains the selected relationship only. Dimensions, symbols and proportions are illustrative; use the entered values and stated assumptions for the calculation.

Keep every unit basis, sign convention, property source and idealization consistent. Values stay in this browser.

Engineering calculation result

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Enter valid values to see the result.

Your entries are calculated in this browser and are not submitted to 365CALCS.COM.

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Understand the engineering model

What this calculator is for

Analyze single- and three-phase power, power-factor correction, conductor voltage drop, network equivalents, per-unit quantities, demand, generator frequency and energy-cost scenarios. The workflow keeps every assumed property, state and coefficient visible so the result can be independently checked.

1Match the displayed relationship to the real system before entering data.
2Use one consistent unit basis and preserve absolute quantities where stated.
3Compare the intermediate results and retain the model boundary.

Visual explanation

The tailored schematic shows the direction of energy, signal, state change or reliability logic represented by the selected equation.

The governing relationship

S=VI* for AC; Qc=P(tanφ₁−tanφ₂); Vth/In and per-unit quantities preserve entered phasor and base assumptions.

Keep the boundary visible

Ideal steady-state analysis only. Fault duty, protection, harmonics, temperature, conductor ampacity, machine curves, tariffs and code compliance require qualified design data.

Quick guide

How to use this calculator

  1. Choose the analysis mode that matches the physical model before entering values.
  2. Enter properties, geometry, loads, states and coefficients from one consistent unit and sign convention.
  3. Use the intermediate outputs to audit the relationship, then retain the stated idealization before applying it.

Calculation method

Transparent engineering model

S=VI* for AC; Qc=P(tanφ₁−tanφ₂); Vth/In and per-unit quantities preserve entered phasor and base assumptions.

The calculator evaluates only the declared relationship and preserves visitor-entered assumptions rather than selecting materials, factors, components or standards.

Worked example

Worked example

A 100 kW load improved from 0.75 to 0.95 power factor requires about 55.3 kvar of ideal correction.

S=VI* for AC; Qc=P(tanφ₁−tanφ₂); Vth/In and per-unit quantities preserve entered phasor and base assumptions.

Supported inputs

Precision and limits

Analysis, not approval

Ideal steady-state analysis only. Fault duty, protection, harmonics, temperature, conductor ampacity, machine curves, tariffs and code compliance require qualified design data.

Standards and properties

Material properties, allowable values, load combinations, safety factors, correlations, manufacturer data, codes and jurisdictional requirements are not supplied automatically.

Units and precision

Use one consistent unit basis. Results retain working precision but cannot be more accurate than the entered measurements and properties.

Privacy

Entered engineering values and results stay in this browser and are not sent to analytics or third parties.