|
1. Separation
of transformer core losses and to determine the hystersis and eddy current
losses at rated voltage and frequency.
2. To plot the O.C.C. & S.C.C. of an alternator and to determine its
regulation by synchronous impedance method.
3. To synchronize an alternator across the infinite bus (RSEB) & summarize
the effects of variation of excitation on load sharing.
4. To plot the V-curve for a synchronous motor for different values of
loads.
5. To perform sumpner’s back-to-back test on 3 phase transformers, find
its efficiency & parameters for its equivalent circuits.
6. To perform the heat run test on a delta/delta connected 3-phase
transformer and determine the parameters for its equivalent circuit.
7. To perform no load and blocked rotor test on a 3 phase induction motor
and to determine the parameters of its equivalent circuits. Draw the
circle diagram and compute the following (i) Max. Torque (ii) Current
(iii) slip (iv) p.f. (v) Efficiency.
8. To perform the load test on a 3-phase induction motor and determine its
performance characteristics (a) Speed vs load curve (b) p.f. vs load curve
(c) Efficiency vs load curve (d) Speed vs torque curve
9. Determination of losses and efficiency of an alternator.
10. To find Xd and Xq of a salient pole synchronous machine by slip test. |