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srec
Department of Electrical & Electronics Engineering

Counselling Code: 2719

Electrical Machines Lab

Electrical Machines Lab

COURSE OUTCOMES
On successful completion of the course, students will be able to
CO1 : Determine the load characteristics of DC generators, DC motors and to perform speed control operation.
CO2 : Conduct various experiments to determine the losses and efficiency of DC machines and Transformers.
CO3 : Carry out various connections of single phase and three phase transformers.

LIST OF EXPERIMENTS:
1. Load test on a DC shunt generator and DC Compound generator.
2. Load test on DC shunt, series and compound motors.
3. Speed control of DC shunt motor.
4. Swinburne's test on a DC shunt motor.
5. Hopkinton's test on a pair of DC shunt machines.
6. No load test on a DC shunt machine and separation of losses.
7. OC and SC tests on a single-phase transformer.
8. Separation of losses in a single-phase transformer.
9. Sumpner's test on single-phase transformers.
10. Scott connection of two single-phase transformers.
11. Polarity test on single phase and three phase transformer.

List of Major Equipments:
  • 230V, 1500 RPM, 3 HP D.C. Shunt Motor
  • 230V, 1500 RPM, 3 HP D.C. Compound Motor
  • 230V, 1500 RPM, 3 HP D.C. Series Motor
  • 220V, 1500 RPM, 2.2KW D.C. Shunt Generator coupled
    to 230V, 1500 RPM, 3 HP D.C. Shunt Motor 
  • 220V, 1500 RPM, 2.2 KW D.C. Compound Generator coupled to 230V, 1500 RPM, 3 HP D.C. Shunt Motor
  • 3Phase, 415V, 7.5KVA, Non-Salient Pole Alternator coupled to 230V, 1500 RPM 7.5 KW D.C. Shunt Motor
  • 3Phase, 415V, 5 HP Slip Ring Induction Motor coupled to 230V, 1500 RPM, 5 HP D.C. Shunt Motor
  • 220V, 1500 RPM, 2.2KW D.C. Series Generator coupled to 230V, 1500 RPM, 3 HP D.C. Compound Motor
  • 7.5KVA, 3Phase, 440V,Salient Pole Alternator coupled to 10HP DC Shunt Motor
  • 3Phase, 415V, 1440 RPM, 10 HP Slip Ring Induction Motor
  • Single Phase, 250V, 1440 RPM, 1 HP Induction Motor with loading arrangement
  • 3Phase, 415V, 7.5KVA, Non-Salient Pole Alternator coupled to 230V, 1500 RPM 7.5 KW D.C. Shunt Motor
  • 3Phase, 415V, 5 HP Slip Ring Induction Motor coupled to 230V, 1500 RPM, 5 HP D.C. Shunt Motor
  • 3Phase, 415V, 3.7KW Squirrel Cage Induction Motor
  • 3Phase, 415V, 2.2KW Squirrel Cage Induction Motor
  • 5 HP,400V,50Hz,1440rpm, Three Phase Slip ring Induction Motor
  • DC Shunt Motor 7.5HP, 230V,1500RPM coupled to alternator non-salient pole type 5kVA, 3-phase, 400V, 50Hz,1500RPM and with 3-point starter
  • Synchronous motor 5HP, 3-phase, 400V, 50Hz,1500RPM with brake loading arrangement and static exciter

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