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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
∙∙∙∙∙∙ FIRST....... SEMESTER M.TECH DEGREE EXAMINATION, DECEMBER 7
Branch: ELECTRICAL&ELECTRONICS

Stream(s):
|. POWER SYSTEMS
2. ELECTRICAL MACHINES
OIEE6301 MODELLING OF ELECTRICAL MACHINES:

Answer any twofill questions from each part Limit
answers to the required points.

Max. Marks: 60 Duration: 3 hours
PARTA
1. ദ. (i)What is Krons Primitive machine? Obtain the voltage equation for Krons Primitive
machine? (7)

(ii)Give the R matrix, ‏ا‎ matrix and Torque matrix for Krons Primitive machine (2)

2 a. (i)Draw the basic two pole machine diagram and primitive machine diagam for the
following machines?

(1)DC compound machines
(2) Three phase Induction Motor

(3)Single phase Induction Motor

(4)Synchronous motor (4)
(ii)Give the conventions of generalized machine theory (2)
0. .(a) Show that power is invariant in three phase to two phase transformation? (3)
3. (a) Obtain the transformation from a, p axis to d,qaxis and hence obtain the transforrnation from

abc axis to dq axis?(7)

(b) Give the physical concept of parks transformation? (2)