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Overview

Producing reliable power from 120 to 175 ekW at 60 Hz, our C7.1 diesel generator sets designed to ISO 8528-5 transient response requirement. All C7.1 generator sets are available with a choice of emissions levels.

Generator Set Specifications

Units:
Minimum Rating 120 ekW 120 ekW Less
Maximum Rating 175 ekW 175 ekW Less
Emissions/Fuel Strategy Non Regulated Non Regulated Less
Voltage 208 to 480 Volts 208 to 480 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 rpm 1800 rpm Less
Duty Cycle Standby, Prime Standby, Prime Less

Engine Specifications

Engine Model C7.1 I-6, 4-Cycle Diesel C7.1 I-6, 4-Cycle Diesel Less
Bore 4.13 in 105.0 mm Less
Stroke 5.31 in 135.0 mm Less
Displacement 427.8 in³ 7.01 B Less
Compression Ratio 16.5:1 16.5:1 Less
Aspiration Turbocharged, Air to Air Aftercooled Turbocharged, Air to Air Aftercooled Less
Fuel System Common Rail Common Rail Less
Governor Type ADEM™A4 ADEM™A4 Less

Generator Set Dimensions

Length - Maximum 98.4 in 2500.0 mm Less
Width - Maximum 52.0 in 1320.0 mm Less
Height - Maximum 64.0 in 1626.0 mm Less

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets other NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements
  • Cat Diesel Engine

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight
  • SR5 Alternator

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation
  • EMCP Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements
  • Cooling System

  • Designed to operate in standard ambient temperatures up to 55°C (131°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities
  • Certifications

    Fully prototype tested with certified torsional vibration analysis available

    One Safe Source

  • Components used in the generator set are selected based on seamless design integration to provide the optimum performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system
  • World Wide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements
  • C7.1 (60 Hz) Standard Equipment

    Air Inlet System
    • Air Cleaner; light duty with disposable element

    Control Panels
    • EMCP 4.1

    Cooling System
    • Radiator and cooling fan with guards
    • Coolant drain line with valves
    • Fan drive, battery charging alternator drive
    • Caterpillar extended life coolant

    Exhaust System
    • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use; shipped loose

    Fuel System
    • Standard open set fuel tank / base supplied
    • Base, formed steel with single wall integral 8-hour fuel tank

    Lube System
    • Lubricating oil
    • Oil drain line with valve

    Generator and Generator Attachments
    • Voltage regulator (single phase sensing)
    • Segregated low voltage (AC/DC) wiring panel
    • 12 leads
    • IP23 protection
    • Tower panel, IP22, bottom cable entry
    • Circuit breaker, IEC, 3 pole, mounted in tower panel

    Mounting System
    • Termination points for coolant and lube oil drain lines
    • Captive linear vibration isolators between base and engine-generator
    • Includes lifting provision and drag points

    Starting / Charging System
    • 24V battery with rack and cables

    Governing System
    • Mechanical and electrical governing system - model dependent

    General
    • Engine and alternator pre-paint, Caterpillar Yellow

    C7.1 (60 Hz) Optional Equipment

    Alternator System
    • R frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
    • Alternator removal
    • Optional LC frame alternators
    • Optional LC frame alternator with coastal insulation protection
    • Permanent magnet
    • 3 Phase sensing
    • Quatrature droop king
    • Anti-condensation heater

    Circuit Breakers
    • 4 Pole 250A, 400A and 630A Circuit Breakers
    • Padlockable breaker device

    Control System
    • EMCP 4.2
    • Static battery charger
    • Control panel heater
    • Volt free contacts for common alarm
    • Volt free contacts for generator set running

    Control Panel Options
    • Volt free contacts
    • Speed adjust contacts
    • Speed adjust potentiometer
    • Panel mounted audible alarm
    • Earth fault (2 wire only)
    • Earth leakage (2 wire only)
    • Overload shutdown via breaker
    • Battery charger
    • Emergency stop with key
    • Control panel heater

    Cooling System
    • Coolant heater
    • Low coolant temperature
    • Low coolant level shutdown

    Enclosures
    • Sound attenuated levels 1 and 2 enclosures
    • Rental options (CAE only) - Single point lift
    • Rental options (CAE only) - Rental pack
    • Rental options (CAE only) - CEE form sockets for enclosure
    • Rental options (CAE only) - Socket blanking plate

    European Certifications
    • Upgrade to STD set for CE

    Mounting Options
    • Residential silencer
    • Silencer installation kit
    • Electronic governor
    • Battery removal
    • Industrial silencer removal

    Test Reports
    • PGS test report @ 1.0 power factor
    • PGS test report @ 0.8 power factor

    General
    • Stone guards / radiator trans flange

    Fuel Systems
    • Open set narrow tankbase
    • Skidbase for CALG enclosure sets
    • DEFRA bunded fuel tank
    • High fuel level alarm
    • Compact skidbase for open sets
    • Low fuel level shutdown
    • Low fuel level alarm

    Global Certifications
    • Certification for CIS

    Power Termination
    • Circuit breaker, IEC, 4 pole

    Accessories / Miscellaneous
    • Packing case - compact set
    • Packing case - canopied set

    Application Centre

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