1. What is the 3 Phase Motor kWh Calculation?

The kWh calculation for a 3-phase motor determines the energy consumption by multiplying the motor's power rating by its operating time and converting to kilowatt-hours. This helps in estimating electricity costs and energy efficiency.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( kWh \) — Kilowatt-hours (energy consumption)
• \( P \) — Power in watts (W)
• \( h \) — Operating time in hours

Explanation: The formula converts watt-hours to kilowatt-hours by dividing by 1000, as 1 kWh = 1000 watt-hours.

3. Importance of Energy Calculation

Details: Calculating energy consumption helps in estimating operational costs, comparing motor efficiency, and planning energy usage in industrial applications.

4. Using the Calculator

Tips: Enter the motor's power rating in watts and its operating time in hours. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my motor's power rating?
A: Check the motor's nameplate specifications or manufacturer documentation for the rated power in watts.

Q2: Can I use this for single-phase motors?
A: Yes, the same formula applies to single-phase motors, though 3-phase motors typically have different efficiency characteristics.

Q3: How accurate is this calculation?
A: This provides a basic estimate. Actual consumption may vary based on load, efficiency, and power factor.

Q4: What's the difference between kW and kWh?
A: kW (kilowatts) measures power (rate of energy use), while kWh (kilowatt-hours) measures energy (power × time).

Q5: How do I convert this to electricity cost?
A: Multiply kWh by your electricity rate (per kWh) to estimate cost.