Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 31-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 07589EP3QCT404V
List Price : $14,226
Notes:
Performed by: Checked:
Cooling Tower Motors : High Efficiency - Two Speed
DATA SHEET
Three-phase induction motor - Squirrel cage rotor
Customer :
Product line :
Frame : 404/5T
Output : 18.5 HP
Frequency : 60 Hz
Poles : 8
Full load speed : 885
Slip : 1.67 %
Voltage : 460 V
Rated current : 29.1 A
Locked rotor current : 125 A
Locked rotor current (Il/In) : 4.3
No-load current : 18.0 A
Full load torque : 108 lb.ft
Locked rotor torque : 150 %
Breakdown torque : 200 %
Design : A
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 46 s (hot)
Service factor : 1.15
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP55
Approximate weight : 1125 lb
Moment of inertia : 27.403 sq.ft.lb
Noise level : 62 dB(A)
Cooling Tower Motors : High Efficiency - Two Speed
No.:
Date: 31-DEC-2012
D.E. N.D.E. Load Power factor Efficiency (%)
Bearings 6316 C3 6314 C3 100% 0.65 90.2
Regreasing interval 8569 h 9789 h 75% 0.57 89.5
Grease amount 34 g 27 g 50% 0.45 88.5
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 460V (A)
1.0
2.0
3.0
4.0
5.0
40
30
A - Efficiency (%)
B - Power factor
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Customer :
Product line :
Frame : 404/5T
Output : 18.5 HP
Frequency : 60 Hz
Full load speed : 885
Voltage : 460 V
Rated current : 29.1 A
Insulation class : F
Notes:
Cooling Tower Motors : High Efficiency - Two Speed
D
Percent of rated output (%)
Locked rotor current (Il/In) : 4.3
Duty cycle : S1
Service factor : 1.15
Design : A
Locked rotor torque : 150 %
Breakdown torque : 200 %
20
10
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 : 404/5T
Output : 18.5 HP
Frequency : 60 Hz
Full load speed : 885
Voltage : 460 V
Rated current : 29.1 A
Insulation class : F
Notes:
Performed by Checked
Locked rotor current (Il/In) : 4.3
Duty cycle : S1
Service factor : 1.15
Design : A
Locked rotor torque : 150 %
Breakdown torque : 200 %
1 2 3 4 5 6 7 8
A
B
C
D
E
F
2E
15.984
B
17.677
K
5.433
N-W
7.250
d1
DUNC 3/4"-10
BF
0.828
2F
12.244/13.740
C
38.077
O
19.496
U
2.875
Flange
FD-508
BB
0.203
H
0.807
D
10.000
P
18.740
R
2.449
AJ
20.000
BA
6.625
G
1.811
ES
5.512
AB
16.380
AK
18.000
A
19.921
J
3.937
S
0.750
AA
NPT 3"
BD
22.000
Notes:
Performed by:
Checked:
Customer:
Cooling Tower Motors : High Efficiency - Two Speed
31-DEC-2012Three-phase induction motor
Frame 404/5T - IP55
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