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Induction Motor Energy Audit Kit: Load, Efficiency and Payback of IE3 Replacement

Approx. component budget: Rs. 4,000 - 8,000

Objective

Carry out a small energy audit on a real motor in a lab or workshop and estimate savings and payback.

What you will build

A portable kit measuring voltage, current, power factor and speed of a running motor to estimate its loading and efficiency, with a calculator for savings from an efficient replacement.

Results you can expect

• Motor loading percentage
• Estimated efficiency from slip and power methods
• Annual energy cost
• And payback of an IE3 replacement for 3 loading cases

What you will learn

Energy audit method, motor efficiency standards and payback analysis, useful for energy auditor roles.

Tools and notes

ESP32, PZEM-004T or CT and voltage sensors, optical tachometer, Excel. Clip sensors only on insulated conductors and take permission before testing any workshop motor.

Resume points from this project

• Built and tested Induction Motor Energy Audit Kit: Load, Efficiency and Payback of IE3 Replacement; objective: carry out a small energy audit on a real motor in a lab or workshop and estimate savings and payback.
• Measured and analysed motor loading percentage and estimated efficiency from slip and power methods; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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