University of Mumbai 2007-8th Sem B.E Electrical and Electronics Engineering Principals of Electrical Design Old - Question Paper
Con. 2744-07. [OLD COURSE] ND-8192
P4.RT*4>? 46? _
(3 Hours) [Total Murks : 100
Note Before: fH-
1. All questions carry equal marks. y ('
2. Question 1 is compulsory*
Qu/UjAltp* annttmainpons.
A. In case of a transformer, write a detailed note on the different accessories and their functions.
B. Explain In detail the effects of choice of specific magnetic and specific electric loading while designing a 3 phase Induction Motor
Question 2
A, Explain with the help of a neat diagram the current distribution in the bars and end rings of a squirrel cagc Induction Motor.
B. Derive an expression for reluctance offered by a parallel sided slot with single conductor in a induction motor stator.
Question 3
A. In case of a 3 phase induction motor with o as its dispereion coefficient* show that a Maximum power factor * l-o
H a
b. Maximum power factor = full load output * (1+ ct)
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