1. What is Motor Running Cost?

The motor running cost calculates the electricity expense of operating an electric motor based on its power consumption, operating time, and electricity rate. It helps in budgeting and energy efficiency assessments.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( P \) — Power consumption in kilowatts (kW)
• \( t \) — Operating time in hours
• \( Rate \) — Electricity cost per kilowatt-hour

Explanation: The formula multiplies the motor's power by the time it runs and the electricity rate to determine total operating cost.

3. Importance of Cost Calculation

Details: Understanding motor running costs helps in energy budgeting, comparing motor efficiency, and making decisions about motor replacement or operational schedules.

4. Using the Calculator

Tips: Enter power in kW (nameplate rating or measured), operating time in hours, and your local electricity rate. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: It provides a basic estimate. Actual costs may vary based on motor load, efficiency changes with age, and variable electricity rates.

Q2: Should I use nameplate or actual power?
A: For most accurate results, use actual measured power consumption rather than nameplate rating.

Q3: How do I find my electricity rate?
A: Check your utility bill for the cost per kilowatt-hour (kWh). Some areas have tiered or time-of-use rates.

Q4: Does this include maintenance costs?
A: No, this only calculates electricity costs. Maintenance, depreciation, and other costs should be considered separately.

Q5: Can I use this for multiple motors?
A: For multiple identical motors, multiply the result by quantity. For different motors, calculate each separately and sum.