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Caterpillar

CN3086 Electric Motor for Gas Compression

Get power built for your most demanding gas compression applications. Every Cat® electric motor is tested at each stage of production to make sure it performs reliably under load and according to your process requirements. High operating efficiency and low operating costs come with low noise levels and no emissions. Cat electric motors for gas compression are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty.

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CN3086
CN3086

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Specifications

Spec Value
Voltage/Frequency 4000V & 4160V ± 10%/60 Hz 4000V & 4160V ± 10%/60 Hz
Type of EX-Protection Class 1 Division 2 Group A,B,C,D T3 (NEC or CEC) Class 1 Division 2 Group A,B,C,D T3 (NEC or CEC)
Mounting Designation F1 or F2 F1 or F2
Number of Poles 8 8
Full Load Speed 892 r/min 892 r/min
Electric Motor Type Squirrel Cage Induction Motor Squirrel Cage Induction Motor
Enclosure Type/Method of Cooling WP-II WP-II
Rated Torque 17658 lb/ft 23941 N·m
Maximum Altitude – Before Derate 3300 ft 1000 m
Maximum Ambient Temperature 104 °F 40 °C
Connection of Stator Winding Star Star
Shaft 8.5 in 216 mm
Standards NEMA MG1 NEMA MG1
Insulation Class F Class F
Temperature Rise Class B at rated load Class B at rated load
Duty Continuous Continuous
Locked Rotor Torque 50% 50%
Full Load Current 390 Amps 390 Amps
Service Factor 1.15 SF (1.0 VFD) 1.15 SF (1.0 VFD)
Locked Rotor Amps 490% Code E 490% Code E
No Load Current 108 Amps 108 Amps

Standard Equipment

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

Related Products

CN1566

Gas Compression Electric Motors

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