1. What is a 3 Phase Power Consumption Calculator?

Definition: This calculator estimates the energy consumption in kilowatt-hours (kWh) for three-phase electrical systems.

Purpose: It helps engineers, electricians, and facility managers determine power usage for three-phase equipment and systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy consumption (kWh)
• \( V \) — Line voltage (volts)
• \( I \) — Current (amperes)
• \( PF \) — Power factor (0 to 1)
• \( t \) — Time (hours)

Explanation: The formula accounts for the three-phase power relationship, converting the result to kilowatt-hours by dividing by 1000.

3. Importance of 3 Phase Power Calculation

Details: Accurate power consumption calculations are essential for energy management, cost estimation, and electrical system design.

4. Using the Calculator

Tips: Enter the line voltage (V), current (I), power factor (default 0.8), and operating time in hours. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the √3 factor in the formula?
A: The √3 (approximately 1.732) accounts for the phase difference in three-phase systems.

Q2: What's a typical power factor value?
A: Most industrial equipment has a power factor between 0.8 and 0.95. The default is set to 0.8.

Q3: Is this for line-to-line or line-to-neutral voltage?
A: The formula uses line-to-line voltage (the voltage between any two phases).

Q4: Why divide by 1000?
A: This converts watts to kilowatts (1 kW = 1000 W) and when multiplied by hours gives kWh.

Q5: Can I use this for single-phase calculations?
A: No, for single-phase systems use \( E = V \times I \times PF \times t / 1000 \) (without the √3 factor).