Electric Power Generation

CM46DF Inline

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Overview

Caterpillar electric power stands for reliable energy supply. Especially during the energy system transformation, Cat generator sets close the energy gap caused by renewable energy source such as wind and photo voltaic. Short ramp up time, low operating costs and rapid maintenance times ensures a high availability according to the need of our customers. Combined heat /cool and power solutions allow our customers to maximize the efficiency and earnings paired with low emissions. The CM46DF 50 and 60 Hz, 6, 7, 8, or 9 cylinder inline, turbocharged-aftercooled generator set, is designed for Ultrafast start time and load acceptance, low fuel and oil consumption requiring low maintenance. With reduced complexity of standard modular design and low space requirements between generator sets allows for easy installation. Producing reliable power from 5,290 to 7,930 kWe, each generator set has been designed to meet World Bank (WB) Emission Certification Stage 2. Wherever power is needed around the globe, Caterpillar is able to support you with the best products and services to maximize your profit.

Generator Set Configurations

Units:
Specific Energy Consumption Up To 7053.0 Btu/kWh 7441.0 kJ/kWh Less
Specific Pilot Fuel Consumption (Only Dual Fuel) Up To 70.0 Btu/kWh 74.0 kJ/kWh Less

Generator Set Specifications

Genset Rating Range 5290 - 7930 kWe 5290 - 7930 kWe Less
Fuel Type Gas / diesel oil / heavy fuel oil (HFO) / crude oil Gas / diesel oil / heavy fuel oil (HFO) / crude oil Less
Emission Level Up To World bank emission certification (Stage 2) World bank emission certification (Stage 2) Less
Voltage 3-13.8 kV 3-13.8 kV Less
Aspiration Turbocharged-aftercooled Turbocharged-aftercooled Less
Bore 18.11 in 460.0 mm Less
Configuration 6,7,8,9 cylinder 6,7,8,9 cylinder Less
Dry Weight - Genset (maximum) 529109.0 lb 240.0 ton (US) Less
Dry Weight - Genset (minimum) 392422.0 lb 178.0 ton (US) Less
Emergency Ramp Up 10% To 100% Load 25 s 25 s Less
Engine Efficiency Up To 47.40% 47.40% Less
Engine Rating Range 5400 - 8100 kW 5400 - 8100 kW Less
Engine Type 4-stroke-engine 4-stroke-engine Less
Frequency At Speed 50 Hz @ 500 / 60 Hz @ 514 50 Hz @ 500 / 60 Hz @ 514 Less
Mean Effective Pressure Up To 309.0 psi 21.3 bar Less
Normal Ramp Up To 100% Load 80 s 80 s Less
Ready To Accept Loads (Preheated/Vented) 40 s 40 s Less
Specific Fuel Oil Consumption (WB I) Up To 0.41 Ib/kWh 186.0 g/kWh Less
Specific Fuel Oil Consumption (WB II) Up To 0.41 Ib/kWh 186.0 g/kWh Less
Specific Lube Oil Consumption 0.001 Ib/kWh 0.6 g/kWh Less
Stroke 24.02 in 610.0 mm Less
Swept Volume 6186.0 in³ 101.4 l/cyl Less

Generator Set Dimensions

Height - Maximum 262.0 in 6649.0 mm Less
Height - Minimum 247.0 in 6278.0 mm Less
Length - Maximum 569.0 in 14459.0 mm Less
Length - Minimum 480.0 in 12202.0 mm Less
Width - Maximum 134.0 in 3400.0 mm Less
Width - Minimum 134.0 in 3400.0 mm Less

CM46DF Inline Standard Equipment

Fuel System
  • Circulation module
  • Pre-pressure module
  • Separator module
  • Engine ventilation module (only dual fuel (DF) and gas)
  • Gas valve unit (GVU) (only dual fuel (DF) and gas)
  • Ignition fuel oil module (only dual fuel (DF))

Lubricating Oil System
  • Combined module: cooling water system and lube oil system
  • Lube oil separator module
  • Piping interface module

Cooling Water System
  • Combined module: see lube oil system
  • Cooling water system with radiators
  • Piping interface module

Starting System
  • Starting air compressor module
  • Starting air receiver module

Combustion Air System
  • Air filter - pocket
  • Air filter - oil bath
  • Air filter - pulse

Exhaust System
  • Exhaust gas silencer
  • Selective catalytic reduction (SCR) system
  • Oxidation catalytic (Oxicat) converter system
  • Exhaust gas ventilation module (only dual fuel (DF) and gas)

Control & Monitoring System
  • Local control panel (LCP)
  • Local data panel (LDP) / generator control panel (GCP)
  • Motor control center module (MCC)
  • Engine monitoring package
  • Gas leak detection per cylinder (only dual fuel (DF) and gas)

Mounting System
  • Elastic mounting - genset/engine

Reliable Operation

  • Intensive cooling of key components including exhaust valve seats, injector cooling integrated into lube oil system
  • Reliable, proven and high efficient single turbo charging system
  • Classification society standards ensure high safety and quality
  • Intelligent simplicity ensures a robust engine platform
  • Optimized service schedules enable high availability and long durability

    • Control & Monitoring

  • Ultrafast start time and load acceptance
  • No engine start limitations
  • Continuous power (base and peak load), prime power, stand-by
  • Part load with high efficiency
  • Monitoring for unattended operation
  • Asset intelligence system

    • Ease Of Installation

  • Reduced complexity of standard modular design allows an easy installation
  • Low space requirements between the gensets
  • Genset is ready for installation
  • Generator set designed for direct elastic mounting

    • Ease Of Operation

  • Low fuel and oil consumption
  • Low maintenance requirements
  • Operator and maintenance training courses available

    • Intelligent Simplicity

  • High reliability, modular design and integral construction reduce the number of components by 40% over conventional designs e.g.:
    - Dry engine block with integrated ducts for lubricating oil and charge air and underslung crankshaft
    - Compact cylinder head design
  • Smart maintenance solutions:
    - Easily removable cylinder heads, quick removable fluid connections
    - Split connecting rods to allow fast and easy piston removal without disturbing the big end bearing
    - Segmental camshaft design
    - Simplified parts spectrum by using single-pipe exhaust gas
    - Engine block free from cooling water
  • State-of-art material ensures long life time

    • Ease Of Maintenance

  • Smart maintenance solutions allow an easy component accessibility
  • Large inspection openings afford an easy serviceability to core engine internals
  • Core engine components designed for reconditioning and reuse
  • Short maintenance times enable high availability
  • No engine removal necessary for maintenance and overhauls

    • Fuel

  • Liquid: Light fuel oil (LFO), crude oil and heavy fuel oil (HFO) with fuel quality up to 700 cSt/50°C according to CIMAC H55/K55
  • Dual:
    - Light fuel oil (LFO), crude oil and heavy fuel oil (HFO) with fuel quality up to 700 cSt/50°C according to CIMAC H55/K55
    - Natural gas with methane number > 80 and lower heating value of 28MJ/Nm3
  • Gaseous: Natural gas with methane number > 80 and lower heating value of 31.5 MJ/Nm3

    • Emissions

  • World bank emission certification (Stage 2)
  • Technische Anleitung (TA) Luft (only gas)
  • Post-emission treatment systems for lower emission requirements available

    • Expertise & Experience

  • Assistance for planning - delivery - commissioning - operation and service)
  • Expertise and experience for solutions to maximize benefits, e.g. combine heat and power systems (CHP)

    • World Wide Product Support

  • With nearly 200 Cat dealers we are at home around the globe
  • Factory-trained technicians, original parts and support are never out of reach
  • Long term service agreements offer back-to-back services from preventive maintenance, scheduled maintenance to full operation and maintenance of your asset

    • Application Center

    Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organizes it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

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    Why Choose Cat® Electric Power?

    Caterpillar offers a comprehensive variety of electric power systems, customized to fit your needs. Our specialized systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

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