Cat Electric Motors

Cat® Electric MotorsFor Gas Compression

Get power built for your most demanding gas compression applications.

Every Cat® electric motor is tested to make sure it performs reliably

and according to your process requirements. You get high operating

efficiency, low maintenance costs, decreased low noise levels, and no

site emissions.

CN15661200 rpm

CN5086900 rpm

CN2086900 rpm

CN2586900 rpm

CN3086900 rpm

CN3586900 rpm

CN4086900 rpm

Rating 1500 hp 5000 hp 2000 hp 2500 hp 3000 hp 3500 hp 4000 hp

Number of Poles 6 8 8 8 8 8 8

Voltages 4000 V/60 Hz 4000 V/60 Hz 4000 V/60 Hz 4000 V/60 Hz 4000 V/60 Hz 4000 V/60 Hz 4000 V/60 Hz

Enclosure Type WP II WP II WP II WP II WP II WP II WP II

Service Factor (Inverter Fed)

1.15 SF (1.0 VFD)

1.15 SF (1.0 VFD)

1.15 SF (1.0 VFD)

1.15 SF (1.0 VFD)

1.15 SF (1.0 VFD)

1.15 SF (1.0 VFD)

1.15 SF (1.0 VFD)

Temperature Rise Class B* Class B* Class B* Class B* Class B* Class B* Class B*

Insulation Class F Class F Class F Class F Class F Class F Class F

Weight 8289 lb 21,429 lb 12,037 lb 13,735 lb 17,130 lb 18,431 lb 19,268 lb

* Class B rise at a 1.0 service factor

GET TOUGH.

CAT ELECTRIC MOTORS

CAT ELECTRIC MOTORS – HP RANGE

COMING SOON

1000 1500 2000 2500 3000 3500 4000 4500 5000 5500

CN1566Electric Motor







Cat Engine Cat Engine Cat EngineCat EngineCat Engine

6 ABB | Motors and Generators | High voltage modular induction motors

Motor mechanical structureEfficiency and reliability start here

RotorThe key to a long rotor operating life is minimal vibration. This is achieved through robust construction and careful balancing.

ABB selects the shaft material according to the demands of the application and the ambient conditions in which the motor is to operate. Squirrel cages are made of copper, copper alloy or aluminum, depending on the load and customer requirements. Additional stiffness is provided by fabricated rotor bars, which enable the motors to withstand long periods of heavy use. Aluminum bars and end rings are used to ensure optimal starting characteristics. And, once assembled each rotor is dynamically balanced at full operating speed in accordance with the ISO 1940-1 and ISO 11342 standards on mechanical vibration.

Each component and each design detail of an ABB high voltage modular induction motor are engineered and manufactured to maximize motor performance and provide a uniquely low cost of ownership over a long and productive operating life.

StatorThe stator core is welded and machined to form a solid and compact unit that retains its rigidity throughout the life of the motor. Radial air ducts ensure uniform and efficient cooling.

When completely wound and connected, the stator is vacuum pressure impregnated and cured with ABB’s Micadur® Compact Industry insulation system, a specially formulated epoxy resin used by ABB to insulate all its rotating electrical machines over the past 30 years. Micadur ensures a sealed and homogeneous insulation system, resulting in low dielectric losses, high dielectric strength, excellent heat transfer and the elimination of hazardous internal partial discharges. As standard, all motors are designed to stay within temperature Class F.

Rotor Stator

POWER THAT NEVER QUITS.Cat electric motors are of the AC induction type and built for low vibration and high rigidity, so you get great performance over a long, productive life. Standard features include Class I, Division 2 Groups A, B, C, D (T3) rating and a high strength alloy (42CrMo4) forged, oversized, keyless shaft.

BEARINGS• Sleeve bearings standard on 2000 hp and above, anti-friction on 1500 hp

(sleeve bearings available as an option)

• 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 cage

• Oversized, forged, keyless shaft matches most standard compressors

STATORS• Welded and machined stator core retains its rigidity

throughout motor life

• Radial air ducts ensure uniform and efficient cooling

• 2x RTDs per phase

• Vacuum pressure impregnated with a specially formulated epoxy resin 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

It’s an easy choice.From selection and installation to ongoing technical support and maintenance, your Cat dealer is there to help you. Installation drawings, performance data, manuals, and other documentation will be readily available. Shorter lead times, industry-leading availability and extended service intervals mean less stress and lower cost of ownership. Our goal is to make your life easier.

To learn more, call your local Cat dealer today or visit www.cat.com/oilandgas

CAT, CATERPILLAR, BUILT FOR IT, their respective logos, "Caterpillar Yellow", the "Power Edge" trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

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All rights reserved.

AMERICAS

Caterpillar Inc.Oil & Gas10203 Sam Houston Park DriveHouston, Texas 77064Tel: (+1) 713-329-2207Fax: (+1) 713-895-4280

ASIA PACIFIC

Caterpillar Asia Pte., Ltd.Oil & Gas7 Tractor RoadSingapore 627968Tel: (+65) 6828-7333Fax: (+65) 6828-7414

EUROPE, AFRICA, AND MIDDLE EAST

Caterpillar Commercial Northern Europe Ltd.Oil & GasBuilding 329Doncastle RoadBracknell RG12 8PETel: 01344 782920Fax: 01344 782930

Caterpillar MotorenGmbH & Co. KGOil & GasFalckensteiner Str. 2D-24159 Kiel, GermanyTel: (+49) 431 3995 3004Fax: (+49) 431 3995 5004

RUSSIA

Caterpillar Eurasia82 Sadovnicheskaya Str.Moscow 115035Tel: (+7-495) 213-3340Fax: (+7-495) 213-3372

CHINA

Caterpillar Oil & Gas ChinaRoom 1601 Caterpillar TowerNo. 8 Wangjing StreetBeijing 100102, P.R. ChinaTel: (+86-10) 5921-0521Fax: (+86-10) 5921-0022

Caterpillar Oil & Gas

OPTIONAL ATTACHMENTS• Oversized Terminal Box

• Surge Protection

• Differential CTs

• Differential Pressure Switch

• Oil Sump Heater and Controller

• Star Point Connection in Terminal Box

• Blower Motor Cooling

• Right-hand or Left-hand (F1 Or F2) Main Terminal Box Location

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Cat Electric Motors