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Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 31-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 02012ET3PCT286T
List Price : $4,635
Notes:
Performed by: Checked:
Cooling Tower Motors : NEMA Premium
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DATA SHEET
Three-phase induction motor - Squirrel cage rotor
Customer :
Product line :
Frame : 286T
Output : 20 HP
Frequency : 60 Hz
Poles : 6
Full load speed : 1180
Slip : 1.67 %
Voltage : 200 V
Rated current : 55.5 A
Locked rotor current : 427 A
Locked rotor current (Il/In) : 7.7
No-load current : 23.9 A
Full load torque : 87.8 lb.ft
Locked rotor torque : 260 %
Breakdown torque : 280 %
Design : B
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 31 s (hot)
Service factor : 1.25
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP55
Approximate weight : 463 lb
Moment of inertia : 9.1624 sq.ft.lb
Noise level : 59 dB(A)
Cooling Tower Motors : NEMA Premium
No.:
Date: 31-DEC-2012
D.E. N.D.E. Load Power factor Efficiency (%)
Bearings 6311 2RS 6211 2RS 100% 0.85 91.7
Regreasing interval --- --- 75% 0.80 91.7
Grease amount --- --- 50% 0.70 90.0
Notes:
Performed by Checked