Laboratory
Assignments
Semester : 7TH Electrical
Subject: Design of AC Machines
Draw & write the following Assignments from the
book “ELECTRICAL MACHINE DESIGN “ by A.
K. Sawhney
(1)Draw
the following parts of three phase induction motor in SHEETS
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10.2,3,4,8,9,10,12,14,15,16,17,18,27,29,36,41,43
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(2)Draw
the following parts of three phase synchronous machine in SHEETS
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11.2,3,4,5,6,8,9,13,14,15,16,17,18,21,22,26,28,45
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Write
the following solved examples in file page with data sheet
(A)Design
problem-1
Design a 2.2KW,400V,3-ɸ,50Hz,1500rpm squirrel cage induction motor.
The machine is to be started with star-delta starter, the efficiency &
power factor are 0.8 & 0.825 respectively. Assume cheap design.
(B)Design
problem-1
Design a water wheel generator with the following specifications:
KVA=3000, Phase=3,
Voltage=6600V,
Frequency=50Hz,
Connection=star, RPM=187.5, P.F.=0.8lag
(C) Draw
the circle diagram for 5HP,200V,50Hz, 3-ɸ,4-pole ,star
connected induction motor from the following data:
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O.C. Test
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200V
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5A
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350W
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S.C. Test
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100V
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26A
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1700W
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