Question Paper Code : 33425
B.E / B.Tech. Degree Examination, NOVEMBER/DECEMBER 2013.
Electrical and Enöneering
EE -1251/EE 1254 ELECTRICAL MACHINES — 11
(Regulation 2004 / 2007)
(Common to B.E. (Part-Time) Third Semester — Regulation 2005)Time : Three hours
Max Marks : 100 marks
Answer ALL questions.
PART A (10 x 2 = 20 marks)
1.What is meant by compounding curve in synchronous generator?
2.State factors responsible for a change in synchronous generator terminal voltage while feeding isolated load.
3.Define pull-out torque in synchronous motor.
4.Define Hunting. with respect to 3 phase synchronous motor.
5.How can the direction of rotation of three-phase induction motor be reversed?
6.What is the disadvantage of star delta starting method?
7.Name the method of speed control used only for slip-ring induction motor.
8.What is the disadvantage of rotor rheostat speed control method?
9.How will you change the direction of rotation of a repulsion motor?
10.Write down any two applications of universal motor.
Full Name :Arumugam.P
College Name :SNS College Of Technology
Subject Code :EE1251
Subject Name :Electrical Machines-II
Study Material Description :QP
EM-II ND2013 QP.pdf (Size: 1.75 MB / Downloads: 59)
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