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CN5086 Electric Motor

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Electric Motor Specifications
Electric Motor Type Squirrel Cage Induction Motor
Number of Poles 8
Full Load Speed 894.0 rpm (894.0 rpm)
Voltage/Frequency 4000V u00b1 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
Enclosure Type/Method of Cooling WP-II
Insulation Class F
Service Factor 1.0 VFD (1.15 SF)
Standards NEMA MG1
Max Ambient Temperature 40 u00b0C (104 u00b0F)
Max Altitude Before Derate 1000 m (3000 ft)
Duty Continuous
Temperature Rise Class B at rated load
Connection of Stator Winding Star
Full Load Current 658 Amps
Locked Rotor Amps 520% Code E
Locked Rotor Torque 60%
Breakdown Torque 190%
No Load Current 200 Amps
Rated Torque 39815 Nu2022m (29366 lb-ft)
Shaft 216 mm (8.5 in)

Standard Equipment

  • Bearings
    • Self-lubricated sleeve bearings
    • Insulated non-drive end bearings to reduce bearing currents
    • Bearing RTDs for temperature monitoring
  • Rotors
    • Designed for minimal vibration
    • Dynamic balancing at full operational speed
    • Fabricated copper squirrel cages
    • Oversized, 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

Optional Equipment

  • Oversized Terminal Box
  • Surge Protection
  • Differential CTs
  • Differential Pressure Switch
  • Oil Sump Heater and Controller
  • Star Point Convection in Terminal Box
  • Blower Motor Cooling
  • Right-hand or left-hand (F1 or F2) Main Terminal Box

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