Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 28-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 25012XT3G449T
List Price : $48,048
Notes:
Performed by: Checked:
Three-Phase : Explosion Proof - NEMA Premium
DATA SHEET
Three-phase induction motor - Squirrel cage rotor
Customer :
Product line :
Frame : 449T
Output : 250 HP
Frequency : 60 Hz
Poles : 6
Full load speed : 1190
Slip : 0.83 %
Voltage : 460 V
Rated current : 299 A
Locked rotor current : 2420 A
Locked rotor current (Il/In) : 8.1
No-load current : 134 A
Full load torque : 1088 lb.ft
Locked rotor torque : 280 %
Breakdown torque : 300 %
Design : A
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 10 s (hot)
Service factor : 1.15
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP54
Approximate weight : 3188 lb
Moment of inertia : 144.52 sq.ft.lb
Noise level : 70 dB(A)
Three-Phase : Explosion Proof - NEMA Premium
No.:
Date: 28-DEC-2012
D.E. N.D.E. Load Power factor Efficiency (%)
Bearings 6322 C3 6319 C3 100% 0.81 95.8
Regreasing interval 9212 h 11094 h 75% 0.76 95.4
Grease amount 60 g 45 g 50% 0.64 95.0
Notes:
Performed by Checked