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Specifications
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Standard/Optional Equipment
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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
104°F
Full Load Current
458 Amps
Shaft
8.5in
Rated Torque
20555lb/ft
Maximum Altitude - Before Derate
3300ft
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
Bearings
Bearing RTDs for temperature monitoring
Insulated non-drive end bearings to reduce bearing currents
Anti-friction on 1500 hp (optional)
Rotors
Designed for minimal vibration
Dynamic balancing at full operational speed
Fabricated copper squirrel cages
Forged, keyless shaft
AISI 4140/DIN42CrMo4 shaft
Stators
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
ALL
Bearings
Bearing RTDs for temperature monitoring
Insulated non-drive end bearings to reduce bearing currents
Anti-friction on 1500 hp (optional)
Rotors
Designed for minimal vibration
Dynamic balancing at full operational speed
Fabricated copper squirrel cages
Forged, keyless shaft
AISI 4140/DIN42CrMo4 shaft
Stators
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