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080280039 Electrical machines-II May june 2013 Question Paper

Full Name :Arumugam.P
College Name :SNS College of technology
Department :EEE
Semester :05
Subject Code :080280039
Subject Name :Electrical machines-II
Study Material Description :aaru edition 2014 QP

Question Paper Code : 31230 
Fifth Semester 
Electrical and Electronics Engineering 
080280039 — ELECTRICAL MACHINES — 11 
.Time : Three hours 
(Regulation 2008) 
Maximum : 100 marks 
Answer ALL questions. 
PART A— (10 x 2 .20 marks) 
1.Draw the phasor diagram of an alternator for lagging and leading P.S. loads. 
2.Define the voltage regulation of an alternator and mension the condition for 
maximum voltage regulation. 
3.What is synchronous condensor? 
4.Define breadth factor in synchronous machine winding. 
5.Mention the factors on which the torque of a 34 induction motor depends. 
6.A three phase inductions motor is connected to 34, 420 V, 60 Ha. What must 
be the voltage at 50 Hz for satisfactory operation? 
7.Draw the power stages of 34 induction motors. 
8.What is cascade connection of three phase induction motor? 
9.Why single phase induction motors are not-self starting? 
10.Mention the different applications of reluctance motor.

Attachment :

.pdf   080280039 EM-II May June 2013 QP.pdf (Size: 1.81 MB / Downloads: 226)

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