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Cat Electric Drive Motors for Gas Compression
CN5086 Electric Motor
| Electric Motor Specifications | |
|---|---|
| Voltage/Frequency | 4000V u00b1 10%/60 Hz |
| Type of EX-Protection | Class 1 Division 2, Group A,B,C,D T3 (NEC or CEC) |
| Electric Motor Type | Squirrel Cage Induction Motor |
| Mounting Designation | F1 or F2 |
| Number of Poles | 8 |
| Full Load Speed | 894 r/min (894 r/min) |
| Connection of Stator Winding | Star |
| Rated Torque | 39815 N·m (29366 lb/ft) |
| Standards | NEMA MG1 |
| Maximum Altitude - Before Derate | 1000 m (3000 ft) |
| Service Factor | 1 vfd (1.15 SF) |
| No Load Current | 200 Amps |
| Maximum Ambient Temperature | 40 u00b0C (104 u00b0F) |
| Temperature Rise | Class B at rated load |
| Shaft | 216 mm (8.5 in) |
| Insulation | Class F |
| Enclosure Type/Method of Cooling | WP-II |
| Duty | Continuous |
| Locked Rotor Amps | 520% Code E |
| Full Load Current | 658 Amps |
| Locked Rotor Torque | 60% |
| Breakdown Torque | 190% |
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