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1. Speed
control of D.C. shunt motor by (a) Field current control method & plot the
curve for speed vs field current. (b) Armature voltage control method &
plot the curve for speed vs armature voltage.
2. Speed control of a D.C. Motor by Ward Leonard method and to plot the
curve for speed vs applied armature voltage.
3. To determine the efficiency of D.C. Shunt motor by loss summation (Swinburne’s)
method.
4. To determine the efficiency of two identical D.C. Machine by
Hopkinson’s regenerative test.
5. To perform O.C. and S.C. test on a 1-phase transformer and to determine
the parameters of its equivalent circuit its voltage regulation and
efficiency.
6. To perform back-to-back test on two identical 1-phase transformers and
find their efficiency & parameters of the equivalent circuit.
7. To perform parallel operation of two 1-phase transformers and determine
their load sharing.
8. To determine the efficiency and voltage regulation of a single-phase
transformer by direct loading.
9. To perform OC & SC test on a 3-phase transformer & find its efficiency
and parameters of its equivalent circuit.
10. To perform parallel operation of two 3-phase transformers and
determine their load sharing.
11. To study the performance of 3-phase transformer for its various
connections, i.e. star/star star/delta delta/star and delta/delta and find
the magnitude of 3rd harmonic current. |