Electrical Machines - II Lab

1. To perform no load and blocked rotor tests on a three phase squirrel cage induction motor and determine equivalent circuit.

2. To perform load test on a three phase induction motor and draw Torque -speed characteristics

3. To perform no load and blocked rotor tests on a single phase induction motor and determine equivalent circuit.

4. To study speed control of three phase induction motor by varying supply voltage and by keeping V/f ratio constant.

5. To perform open circuit and short circuit tests on a three phase alternator.

6. To determine V-curves and inverted V-curves of a three phase synchronous motor.

7. To determine the direct axis reactance (Xd) and quadrature axis reactance (Xq) of synchronous machine.

8. To study synchronization of an alternator with the infinite bus by using: (i) dark lamp method (ii) two bright and one dark lamp method.

9. To determine speed-torque characteristics of three phase slip ring induction motor and study the effect of including resistance, or capacitance in the rotor circuit.

10. To determine speed-torque characteristics of single phase induction motor and study the effect of voltage variation.

11. To determine speed-torque characteristics of a three phase induction motor by (i) keeping v/f ratio constant (ii) increasing frequency at the rated voltage.

12. To draw O.C. and S.C. characteristics of a three phase alternator from the experimental data and determine voltage regulation at full load, and unity, 0.8 lagging and leading power factors.

13. To determine steady state performance of a three phase induction motor using equivalent circuit.

14. Load Test on Three Phase Alternator.