Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 31-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 10089EP3PCT444V
List Price : $16,398
Notes:
Performed by: Checked:
Cooling Tower Motors : High Efficiency - Two Speed
DATA SHEET
Three-phase induction motor - Squirrel cage rotor
Customer :
Product line :
Frame : 444/5T
Output : 25 HP
Frequency : 60 Hz
Poles : 8
Full load speed : 890
Slip : 1.11 %
Voltage : 200 V
Rated current : 101 A
Locked rotor current : 405 A
Locked rotor current (Il/In) : 4.0
No-load current : 62.1 A
Full load torque : 146 lb.ft
Locked rotor torque : 180 %
Breakdown torque : 190 %
Design : A
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 50 s (hot)
Service factor : 1.15
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP55
Approximate weight : 1985 lb
Moment of inertia : 70.504 sq.ft.lb
Noise level : 64 dB(A)
Cooling Tower Motors : High Efficiency - Two Speed
No.:
Date: 31-DEC-2012
D.E. N.D.E. Load Power factor Efficiency (%)
Bearings 6319 C3 6316 C3 100% 0.58 91.0
Regreasing interval 7038 h 8569 h 75% 0.50 90.2
Grease amount 45 g 34 g 50% 0.42 87.5
Notes:
Performed by Checked
PERFORMANCE CURVES RELATED TO RATED OUTPUT
Three-phase induction motor - Squirrel cage rotor
100
1.0 0.0
90
0.9
80
0.8
70
0.7
60
0.6
50
0.5
40
0.4
C
A
B
No.:
Date: 31-DEC-2012
C - Slip D - Current at 200V (A)
1.0
2.0
3.0
4.0
5.0
160
120
A - Efficiency (%)
B - Power factor
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Customer :
Product line :
Frame : 444/5T
Output : 25 HP
Frequency : 60 Hz
Full load speed : 890
Voltage : 200 V
Rated current : 101 A
Insulation class : F
Notes:
Cooling Tower Motors : High Efficiency - Two Speed
D
Percent of rated output (%)
Locked rotor current (Il/In) : 4.0
Duty cycle : S1
Service factor : 1.15
Design : A
Locked rotor torque : 180 %
Breakdown torque : 190 %
80
40
0
Performed by Checked
5.0
CHARACTERISTIC CURVES RELATED TO SPEED
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 31-DEC-2012
10.0
B - Current related to rated current (I/In)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
A - Torque related to rated torque (C/Cn)
Customer :
Product line :
0 10 20 30 40 50 60 70 80 90 100
B
Speed related to rated speed (%)
Cooling Tower Motors : High Efficiency - Two Speed
9.0
8.0
7.0
6.0
5.0
A
4.0
3.0
2.0
1.0
0.0
Frame : 444/5T
Output : 25 HP
Frequency : 60 Hz
Full load speed : 890
Voltage : 200 V
Rated current : 101 A
Insulation class : F
Notes:
Performed by Checked
Locked rotor current (Il/In) : 4.0
Duty cycle : S1
Service factor : 1.15
Design : A
Locked rotor torque : 180 %
Breakdown torque : 190 %
1 2 3 4 5 6 7 8
A
B
C
D
E
F
2E
18.000
B
20.079
K
5.591
N-W
8.500
d1
DUNC 3/4"-10
BF
0.828
2F
14.500/16.500
C
43.776
O
22.713
U
3.375
Flange
FD-508
BB
0.203
H
0.807
D
11.000
P
23.622
R
2.880
AJ
20.000
BA
7.500
G
1.630
ES
7.087
AB
19.213
AK
18.000
A
21.929
J
3.937
S
0.875
AA
2XNPT 3"
BD
21.653
Notes:
Performed by:
Checked:
Customer:
Cooling Tower Motors : High Efficiency - Two Speed
31-DEC-2012Three-phase induction motor
Frame 444/5T - IP55
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