Electrical Engineering Lab

List of Experiments / Activities

1. List of Experiments (Any Ten Experiments)
2. 1Electrical Safety Practices in the Laboratory Demonstrate safe handling of electrical equipment, proper use of insulated tools, earthing, and emergency shutdown procedures. Application: Safe operation of electrical systems in laboratories and workplace
3. 2Verification of Ohm's Law Verify the relationship between voltage and current for a resistor and determine its resistance..
4. 3Verification of KVL and KCL Verify Kirchhoff's Voltage Law in a series circuit and Kirchhoff's Current Law in a parallel circuit
5. 4Thevenin's Theorem Verification Find Thevenin's equivalent of a DC network; verify with different load resistors.
6. 5Power and Power Factor Measurement Connect a single-phase inductive load (choke / single-phase motor); measure voltage, current, and active power using a wattmeter; compute power factor.
7. 6Power Factor Improvement Using Capacitor Improve power factor of an inductive load by adding capacitors in steps; record reduction in line current.
8. 7Three-Phase Star Connection – Voltage and Current Set up a balanced three-phase star resistive load; measure phase and line voltages and currents; verify the √3 relationship. Application: three-phase supply to textile machines, chemical plant drives, and construction site distribution boards.
9. 8Measurement of Three- Phase Power by Two- Wattmeter Method Measure the total power of a three-phase balanced load using the two-wattmeter method.
10. 9No-Load Test on a Single- Phase Transformer Measure no-load voltage, current, and input power; observe the no-load characteristics of a transformer.
11. 10Verification of Voltage and Current Ratio of a Single- Phase Transformer Measure primary and secondary voltages and currents to verify the transformation ratio.
12. 11Starting of a Three-Phase Induction Motor Using DOL Starter Start a three-phase induction motor using a DOL starter and observe its operation and direction of rotation.
13. 12Demonstration of Star- Delta Starter Observe the starting of a three-phase induction motor using a star-delta starter and compare it with DOL starting..
14. 13Working of Fluorescent Lamp Circuit Connect and observe the operation of a fluorescent lamp using a choke and starter.
15. 14Demonstration of Fuse, MCB and Earthing Demonstrate the operation of a fuse and MCB and verify proper earthing of electrical equipment.
16. 15Study of Domestic Energy Meter and Energy Bill Observe the operation of a single-phase energy meter and identify the major components of a domestic electricity bill
17. Equipment / Instruments Required
18. •DC Regulated Power Supply
19. •Single-Phase and Three-Phase AC Supply
20. •Electrical Circuit Trainer/Breadboard
21. •AC/DC Ammeters and Voltmeters
22. •Two Single-Phase Wattmeters
23. •Resistor Kit and Rheostat
24. •Capacitor Bank and Choke Coil (Inductive Load)
25. •Single-Phase Transformer
26. •Three-Phase Squirrel Cage Induction Motor
27. •Direct-On-Line (DOL) Starter
28. •Star-Delta Starter (Demonstration Setup)
29. •Single-Phase Energy Meter
30. •Fluorescent Lamp with Choke (Ballast) and Starter
31. •Fuse, MCB and Earthing Demonstration Kit
32. •Earth Continuity Tester
33. •Connecting Wires, Switches and Terminal Blocks
34. •Safety Equipment (Insulated Gloves, Safety Goggles, Fire Extinguisher and First Aid Kit)