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.