ELECTRICAL TECHNOLOGY LAB PRACTICE

Subject Title:Electrical technology Lab Practice Subject Code :EC-310Periods/Week:03Periods/Semester:45

List Of ExperimentsI. Basic electrical equipment and Instruments1. To Identify Electrical Machines and Equipment, wires cables etc

2. To Identify & test Single phase Transformer b) Auto transformer c) single phase Induction motor d) 3 Phase induction motor e) DOL Starter f) Star Delta starter g) Loading Resistance h) Electric Lamp Load i) Water load Identify and test Electrical Instruments.

3. To Identify A)Moving coil Volt meters B) Moving coil Ammeters c) Moving Iron Voltmeters d) Moving Iron Ammeters e) Dynamo meter type watt meter .

4. To Convert and extend range of PMMC meters a) To extend the range of voltmeter using multiplier b) To observe the Loading effect of volt meter on high impedance circuitc)To Open and identify the following parts a) Permanent magnet b) Coil c) Former d) Phosphor bronze springs e) Pointer, Multiplier/Shunt etc a) To convert an ammeter into Voltmeter

5. To extend the range of ammeter using a shunt Resistancea) To Measure current using voltmeter and standard Resistance.

6. To Measure the power consumed by a 100 watts incandescent lamp using Voltmeter and ammeter method a) On AC 230V b) DC 220V

7. To apply a Low voltage to an Incandescent lamp using auto Transformer and observe the effect of voltage on Light output (Measure the Voltage and current) 8. To Measure the power consumed by an Electric motor (Fan) and Lamp load separately using wattmeter , Voltmeter and Ammeter and Determine power factor

9. To Connect a 2500 ohm 1A Rheostat in series with a 100 W Lamp and observe the effect of Variation of Resistance on the input current and Light output10. To Draw the OCC Characteristics of Shunt generator

11. To Control the speed of a DC shunt motor using a) Armature control method b) Field control methodb) To reverse the direction of a DC shunt motor

12. To Plot the Load characteristics of DC shunt motor

13. To Start a DC Series motor Using a 2 point/4 point starter

14. To Determine the transformation ratio of a 1 phase transformera) Apply rated Voltage to the secondary terminals of transformer using auto transformer and measure the Voltage across primary winding

15. To Perform OC and SC tests on transformer to determine Efficiency and Regulation at any given 16. To start a single phase AC motor with DOL Starter17. To start a 3 phase AC motor with star delta starter and also reverse the direction of rotation 18. To Run the AC 1 Servo motor in forward and reverse directions using SPDT Switch