CN3086 Electric Motor for Gas Compression


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CN3086 Electric Motor for Gas Compression Standard Equipment

  • 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

CN3086 Electric Motor for Gas Compression 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 Location


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.

Electric Motor Specifications

Electric Motor Type Squirrel Cage Induction Motor Squirrel Cage Induction Motor Less
Number of Poles 8 8 Less
Full Load Speed 892.0 rpm 892.0 rpm Less
Voltage/Frequency 4000V & 4160V ± 10%/60 Hz 4000V & 4160V ± 10%/60 Hz Less
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) Less
Mounting Designation F1 or F2 F1 or F2 Less
Enclosure Type/Method of Cooling WP-II WP-II Less
Insulation Class F Class F Less
Service Factor 1.15 SF (1.0 VFD) 1.15 SF (1.0 VFD) Less
Standards NEMA MG1 NEMA MG1 Less
Max Ambient Temperature 104.0 °F 40.0 °C Less
Max Altitude Before Derate 3300.0 ft 1000.0 m Less
Duty Continuous Continuous Less
Temperature Rise Class B at rated load Class B at rated load Less
Connection of Stator Winding Star Star Less
Full Load Current 390 Amps 390 Amps Less
Locked Rotor Amps 490% Code E 490% Code E Less
Locked Rotor Torque 50% 50% Less
No Load Current 108 Amps 108 Amps Less
Rated Torque 17658.0 lb-ft 23941.0 N•m Less
Shaft 8.5 in 216.0 mm Less
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