Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 31-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 02012ET3ECT286T-W22
List Price : $4,635
Notes:
Performed by: Checked:
W22 Cooling Tower Motors: NEMA Premium
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 : 1175
Slip : 2.08 %
Voltage : 208-230/460 V
Rated current : 53.5-48.4/24.2 A
Locked rotor current : 300/150 A
Locked rotor current (Il/In) : 6.2
No-load current : 19.0/9.50 A
Full load torque : 88.2 lb.ft
Locked rotor torque : 230 %
Breakdown torque : 260 %
Design : B
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 16 s (hot)
Service factor : 1.25
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP55
Approximate weight : 426 lb
Moment of inertia : 9.1624 sq.ft.lb
Noise level : 59 dB(A)
W22 Cooling Tower Motors: NEMA Premium
No.:
Date: 31-DEC-2012
D.E. N.D.E. Load Power factor Efficiency (%)
Bearings 6311 C3 6211 C3 100% 0.85 91.7
Regreasing interval 20000 h 20000 h 75% 0.80 91.7
Grease amount 18 g 11 g 50% 0.70 91.0
Notes:
Performed by Checked