Amp to kWh 3 Phase

3-Phase Energy Formula:

\[ E_{kWh} = \frac{V \times I \times PF \times \sqrt{3} \times t}{1000} \]

Voltage (V):

volts

Current (I):

amps

Power Factor (PF):

Time (t):

hours

Energy (E_kWh): kWh

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1. What is a 3-Phase Amp to kWh Calculator?

Definition: This calculator converts electrical current (amps) to energy consumption (kWh) for three-phase power systems.

Purpose: It helps electrical engineers, technicians, and facility managers estimate energy usage in three-phase electrical systems.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ E_{kWh} = \frac{V \times I \times PF \times \sqrt{3} \times t}{1000} \]

Where:

\( E_{kWh} \) — Energy in kilowatt-hours
\( V \) — Voltage (volts)
\( I \) — Current (amps)
\( PF \) — Power factor (0-1)
\( t \) — Time (hours)
\( \sqrt{3} \) — Constant for three-phase systems (≈1.732)

Explanation: The formula calculates real power in three-phase systems accounting for voltage, current, power factor, and time.

3. Importance of 3-Phase Energy Calculation

Details: Accurate energy calculation helps in power monitoring, billing, energy efficiency assessments, and electrical system design.

4. Using the Calculator

Tips: Enter voltage (typically 208V, 230V, 400V, 480V), current in amps, power factor (default 0.8), and time in hours. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is power factor?
A: Power factor (0-1) represents the ratio of real power to apparent power. Higher values indicate more efficient power usage.

Q2: Why √3 for three-phase systems?
A: The √3 accounts for the phase difference between the three phases in a balanced system.

Q3: What's a typical power factor value?
A: Industrial motors typically have 0.8-0.9, while perfect resistive loads have 1.0.

Q4: Can I use this for single-phase systems?
A: No, use our single-phase calculator (omit the √3 factor).

Q5: How accurate is this calculation?
A: It provides theoretical values. Actual consumption may vary due to system inefficiencies.