1. What is the Amps to kWh Calculation?

The Amps to kWh calculation converts electrical current measurements into energy consumption (kilowatt-hours). This is essential for understanding power usage, calculating electricity costs, and designing electrical systems.

2. How Does the Calculator Work?

The calculator uses the electrical energy formula:

For three-phase systems, multiply by √3 (approximately 1.732):

Where:

• \( V \) — Voltage (volts)
• \( I \) — Current (amperes)
• \( PF \) — Power factor (unitless, 0 to 1)
• \( h \) — Time (hours)
• \( \sqrt{3} \) — Three-phase multiplier (1.732)

3. Importance of Electrical Calculations

Details: Accurate energy calculations help in sizing electrical systems, estimating energy costs, improving energy efficiency, and complying with electrical codes.

4. Using the Calculator

Tips: Enter voltage in volts, current in amps, power factor (1 for purely resistive loads), time in hours, and select single or three-phase system. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is power factor?
A: Power factor is the ratio of real power to apparent power, ranging from 0 to 1. Resistive loads have PF=1, while inductive loads (motors, transformers) have PF<1.

Q2: When should I use three-phase calculation?
A: Use three-phase for commercial/industrial equipment, large motors, and any system specifically wired as three-phase.

Q3: How accurate is this calculation?
A: It provides theoretical values. Actual consumption may vary due to voltage fluctuations, power factor changes, and equipment efficiency.

Q4: Can I calculate cost from this?
A: Yes, multiply kWh by your electricity rate (per kWh) to estimate cost.

Q5: Why divide by 1000?
A: To convert watts to kilowatts (1 kW = 1000 W), making the result in kWh (kilowatt-hours).