Automation Engineering

Three-phase active power calculator

Three-phase active power engineering calculator. Formula: P = sqrt(3) * line_voltage * line_current * power_factor.

Quick Answer

The three-phase active power calculator computes active power from the input values you provide.

Calculator

Active power (W)

Result Interpretation

The result shows Active power in W, computed directly from the entered inputs using the formula defined for this tool.

Worked Example

Verified calculation

Given:

  • line_voltage = 400
  • line_current = 10
  • power_factor = 1

Expected Result:

  • power = 6928.20323

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

active power = sqrt(3) * line-to-line voltage * line current * power factor

Active power.

Variables

SymbolLabelRoleDescription
line_voltage Line-to-line voltage INPUT Line-to-line voltage
line_current Line current INPUT Line current
power_factor Power factor INPUT Power factor
power Active power OUTPUT Active power

Calculation Steps

  1. Enter the line-to-line voltage in V.
  2. Enter the line current in A.
  3. Enter the power factor in fraction.
  4. Step 1: Compute active power.
  5. Read the active power (W) from the results.

Frequently Asked Questions

What does this calculator calculate?

The Three-phase active power calculator estimates Active power based on the input parameters you provide

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Line-to-line voltage (V), Line current (A), Power factor (fraction). Make sure all inputs use the specified units for consistent results

How does Line-to-line voltage affect the results?

The line-to-line voltage directly affects: Active power. Increasing or decreasing this value will change these output values according to the engineering formula

How should I interpret the calculated results?

The calculator provides the following outputs: active power in W. Results are computed from the input values using the defined calculation method. Always verify results against project-specific requirements and applicable standards

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

When is this calculation useful?

The Three-phase active power calculator is useful during preliminary design, feasibility studies, and quick engineering checks in calculator projects. It helps engineers and designers estimate key parameters before proceeding with detailed analysis

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