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010743004 Electrical Machine Laboratory
9
Induction Motor 3
1. Induction Motor 3
2. Induction Motor 3
Induction Motor 3 9.1
Rotor
. . Stator Y . Stator
Stator
9.1 Induction Motor 3
Induction Motor 3 9.2
9.2 Induction Motor
, ,
, (Core)
(Core Loss ; )
= , = (9.1)
9-1
010743004 Electrical Machine Laboratory
Parabola ( = )
9.3 .
Induction Motor 2
(Core Loss ; ) ( Parabola)
(Friction and Windage Loss ; ) ( ) Rotational
Loss ( ) = + Induction Motor 3
9.3 .
. .
9.3 Induction Motor
Induction Motor 3
9.4 .
9.4 .
. .
9.4 Induction Motor 3
9-2
010743004 Electrical Machine Laboratory
– ………………………………………………………………. ……………………………………….
…………………… ………………… ……………………………………………
– 1. 3-phase AC Power Supply 0 – 400 VAC 1
2. 3-phase Induction Machine 1
3. AC Voltmeter 1
4. AC Wattmeter 1
9.1 Induction Motor 3
Induction Motor 3
1. EXP9.1.1
0-400 VAC
W1
W2
V1
V2
U1
U2
L1
L2
L3
N
VOLTAGE SENSORSENSOR
CURRENT
L1
L2
L3
N
3-P
THREE PHASE POWER METER
THREE PHASE INDUCTION MOTOR
EXP9.1.1 Induction Motor 3
9-3
010743004 Electrical Machine Laboratory
2. P V (line to line) V (line to line)
EXP9.1.1 P
EXP9.1.1 Induction Motor 3
VLL (V) 60 100 140 180 220 260 300 340 380
P (W)
3. EXP9.1.1
( 9.4 .) ,
= ……………………..
= …………………..
= …………………
9-4
300 0 400 VLL (Volt) 100 200 250 350 150 50
80
140
60
120
100
40
20
P (Watt)
010743004 Electrical Machine Laboratory
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1. Induction Motor
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2. ( ) Induction Motor 3
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3. Induction Motor 3 9.2 = 220 V, = 484
= 50 ( ) ( 300 W)
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9-5
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