Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 31-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 02518ET3PCT284TF1-W2
List Price : $3,236
Notes:
Performed by: Checked:
W22 Cooling Tower Motors: NEMA Premium
DATA SHEET
Three-phase induction motor - Squirrel cage rotor
Customer :
Product line :
Frame : 284T
Output : 25 HP
Frequency : 60 Hz
Poles : 4
Full load speed : 1765
Slip : 1.94 %
Voltage : 200 V
Rated current : 67.9 A
Locked rotor current : 421 A
Locked rotor current (Il/In) : 6.2
No-load current : 27.6 A
Full load torque : 73.4 lb.ft
Locked rotor torque : 240 %
Breakdown torque : 270 %
Design : B
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 24 s (hot)
Service factor : 1.25
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP55
Approximate weight : 388 lb
Moment of inertia : 5.1084 sq.ft.lb
Noise level : 64 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% 0.84 93.6
Regreasing interval 20000 h 20000 h 75% 0.80 93.0
Grease amount 18 g 11 g 50% 0.70 92.4
Notes:
Performed by Checked