1. What is Motor Running Cost?

The motor running cost calculates how much it costs to operate an electric motor based on its power consumption, operating time, and your local electricity rate. This helps in budgeting and comparing different motors' efficiency.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( P \) — Power consumption in watts
• \( t \) — Time in hours
• \( Rate \) — Electricity cost per kilowatt-hour
• 1000 — Conversion factor from watts to kilowatts

Explanation: The formula converts watts to kilowatts (dividing by 1000) then multiplies by hours and rate to get total cost.

3. Importance of Calculating Running Cost

Details: Understanding operating costs helps in selecting energy-efficient equipment, budgeting for projects, and identifying potential savings from upgrades.

4. Using the Calculator

Tips: Enter motor power in watts (check nameplate), expected running time in hours, and your electricity rate. For accurate results, use actual measured power if possible.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my electricity rate?
A: Check your utility bill - it's typically listed as cost per kWh (kilowatt-hour).

Q2: Should I use peak or off-peak rates?
A: Use the rate that applies to when the motor will run. Some utilities have time-of-use pricing.

Q3: What if my motor isn't running at full load?
A: For more accuracy, measure actual power consumption with a wattmeter at your operating load.

Q4: Does this include maintenance costs?
A: No, this only calculates electricity costs. Maintenance would be additional.

Q5: How can I reduce motor running costs?
A: Consider more efficient motors, variable speed drives, proper sizing, and reducing unnecessary run time.