1. What is kWh to Amp Conversion?

This calculator converts electrical energy consumption (kilowatt-hours) to current (amperes) based on voltage, power factor, and time period. It's useful for sizing electrical circuits, evaluating load capacity, and energy management.

2. How Does the Calculator Work?

The calculator uses the formula:

For three-phase systems, the denominator is multiplied by \( \sqrt{3} \) (approximately 1.732).

Where:

• \( I \) — Current in amperes (A)
• \( kWh \) — Energy in kilowatt-hours
• \( V \) — Voltage in volts (V)
• \( PF \) — Power factor (unitless, 0 to 1)
• \( h \) — Time period in hours

3. Importance of Power Factor

Details: Power factor represents the ratio of real power to apparent power in an AC circuit. Lower power factors (common with inductive loads) require higher current for the same real power, affecting wire sizing and system efficiency.

4. Using the Calculator

Tips: For accurate results:

• Use consistent units (kWh for energy, volts for voltage)
• For unknown power factor, use 1.0 for resistive loads or 0.8-0.9 for typical industrial loads
• For three-phase systems, select the appropriate option

5. Frequently Asked Questions (FAQ)

Q1: Why does three-phase calculation differ?
A: Three-phase power divides current across three conductors, requiring the \( \sqrt{3} \) factor to account for phase relationships.

Q2: What's a typical power factor value?
A: Resistive loads (heaters, incandescent lights) have PF=1. Motors typically 0.8-0.9. Electronic power supplies often 0.6-0.7.

Q3: Can I use this for DC circuits?
A: Yes, with PF=1 and single-phase selection (DC has no phase concept).

Q4: How does time period affect the result?
A: Longer time periods with the same kWh will show lower current (energy spread over more time).

Q5: What about power factor correction?
A: This calculator shows actual current draw. Power factor correction reduces current for the same real power.