1. What Is Power Consumption Calculation?

Power consumption calculation determines the electrical energy used by a motor over a specific period. It helps in energy management, cost estimation, and efficiency analysis of electrical equipment.

2. How Does The Calculator Work?

The calculator uses the power consumption formula:

Where:

• \( kWh \) — Kilowatt-hours (energy consumption)
• \( kW \) — Kilowatts (power rating)
• \( Hours \) — Operating time in hours

Explanation: This formula calculates the total energy consumed by multiplying the power rating of the motor by the number of hours it operates.

3. Importance Of Power Consumption Calculation

Details: Accurate power consumption calculation is essential for energy cost management, equipment sizing, electrical system design, and environmental impact assessment.

4. Using The Calculator

Tips: Enter the motor's power rating in kilowatts and the operating time in hours. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between kW and kWh?
A: kW (kilowatt) measures power (rate of energy use), while kWh (kilowatt-hour) measures energy (total consumption over time).

Q2: How do I convert motor horsepower to kilowatts?
A: Multiply horsepower by 0.746 to get kilowatts (1 HP = 0.746 kW).

Q3: Does motor efficiency affect power consumption?
A: Yes, less efficient motors consume more power for the same output. Actual consumption may be higher than calculated due to efficiency losses.

Q4: Can I use this for three-phase motors?
A: Yes, but ensure the power rating is in kW (not kVA) and accounts for power factor and efficiency if known.

Q5: How accurate is this calculation for cost estimation?
A: It provides a good estimate, but actual costs may vary based on electricity rates, demand charges, and motor load conditions.