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Overview

Producing reliable power from 135 to 218 kVA at 50 Hz, our C7.1 diesel generator sets designed to ISO 8528-5 transient response requirements. All C7.1 generator sets are available with a choice of emissions levels.

Generator Set Specifications

Units:
Minimum Rating 135 kVA 135 kVA Less
Maximum Rating 218 kVA 218 kVA Less
Emissions/Fuel Strategy Non Regulated, EU Stage IIIA Non Regulated, EU Stage IIIA Less
Voltage 110 to 480 Volts 110 to 480 Volts Less
Frequency 50 Hz 50 Hz Less
Speed 1500 rpm 1500 rpm Less
Duty Cycle Standby, Prime Standby, Prime Less

Engine Specifications

Engine Model Cat® C7.1 Cat® C7.1 Less
Bore 4.1 in 105.0 mm Less
Stroke 5.3 in 135.0 mm Less
Displacement 427.8 in³ 7.0 l Less
Compression Ratio 16.0:1, 18.2:1 16.0:1, 18.2:1 Less
Aspiration Turbocharged, Air to Air Aftercooled Turbocharged, Air to Air Aftercooled Less
Fuel System Direct Injection Direct Injection Less
Governor Type Mechanical Mechanical 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 (50 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

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

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

    Governing System
    • Mechanical and electrical governing system - model dependent

    Lube System
    • Lubricating oil
    • Oil drain line with valve

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

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

    General
    • Engine and alternator pre-paint, Caterpillar Yellow

    C7.1 (50 Hz) Optional Equipment

    Alternator System
    • R frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
    • 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 630 A Circuit Breakers
    • Padlockable breaker device

    Control System
    • EMCP 4.2

    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 level 2 enclosure
    • Sound attenuated level 1 enclosure
    • 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

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

    Global Certifications
    • Certification for CIS

    Mounting Options
    • Electronic governor
    • Residential silencer
    • Silencer installation kit

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

    General
    • Stone guards / radiator trans flange

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