Type of EX-Protection | Class 1 Division 2 Group A,B,C,D T3 (NEC or CEC) |
Mounting Designation | F1 or F2 |
Voltage/Frequency | 4000V & 4160V ± 10%/60 Hz |
Full Load Speed | 894 rpm |
Electric Motor Type | Squirrel Cage Induction Motor |
Number of Poles | 8 |
Maximum Ambient Temperature | 40 °C |
Full Load Current | 458 Amps |
Shaft | 216 mm |
Rated Torque | 27869 N·m |
Maximum Altitude - Before Derate | 1000 m |
Locked Rotor Amps | 540% Code E |
Connection of Stator Winding | Star |
Standards | NEMA MG1 |
Duty | Continuous |
Enclosure Type/Method of Cooling | WP-II |
Locked Rotor Torque | 60% |
Service Factor | 1.15 SF (1.0 VFD) |
No Load Current | 137 Amps |
Insulation | Class F |
Temperature Rise | Class B at rated load |
Bearing RTDs for temperature monitoring
Insulated non-drive end bearings to reduce bearing currents
Anti-friction on 1500 hp (optional)
Designed for minimal vibration
Dynamic balancing at full operational speed
Fabricated copper squirrel cages
Forged, keyless shaft
AISI 4140/DIN42CrMo4 shaft
Radial air ducts ensure uniform and efficient cooling
Vacuum pressure impregnated with specially formulated epoxy resin
2X RTDS per Phase
Space heater
Welded and machined stator core retains its rigidity throughout motor life to ensure a sealed and homogeneous insulation system that results in high dielectric strength, excellent heat transfer and the elimination of hazardous internal partial discharges