Voltage/Frequency | 4000V & 4160V ± 10%/60 Hz |
Type of EX-Protection | Class 1 Division 2 Group A,B,C,D T3 (NEC or CEC) |
Mounting Designation | F1 or F2 |
Number of Poles | 8 |
Full Load Speed | 892 r/min |
Electric Motor Type | Squirrel Cage Induction Motor |
Enclosure Type/Method of Cooling | WP-II |
Rated Torque | 23941 N·m |
Maximum Altitude - Before Derate | 1000 m |
Maximum Ambient Temperature | 40 °C |
Connection of Stator Winding | Star |
Shaft | 216 mm |
Standards | NEMA MG1 |
Insulation | Class F |
Temperature Rise | Class B at rated load |
Duty | Continuous |
Locked Rotor Torque | 50% |
Full Load Current | 390 Amps |
Service Factor | 1.15 SF (1.0 VFD) |
Locked Rotor Amps | 490% Code E |
No Load Current | 108 Amps |
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