APPLICATION
& ENGINEERING DATA
Rating definitions - Standby: Applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. (All ratings in accordance with
BS5514, ISO3046, ISO8528 and DIN6271).
QT027
GENERATOR SPECIFICATIONS
TYPE ...........................................................................................................Synchronous
ROTOR INSULATION ..........................................................................................Class H
STATOR INSULATION .........................................................................................Class H
TOTAL HARMONIC DISTORTION ........................................................................... <5%
TELEPHONE INTERFERENCE FACTOR (TIF) ........................................................<50
ALTERNATOR OUTPUT LEADS 3 PHASE ...........................................................4 wire
BEARINGS .................................................................................................... Sealed Ball
COUPLING .................................................................................................. Flexible Disc
LOAD CAPACITY (STANDBY RATING) ................................................................ 27 kW
EXCITATION SYSTEM ........................................................................................... Direct
NOTE: Generator rating and performance in accordance with
ISO8528-5, BS5514, SAE J1349, ISO3046, and DIN6271 standards.
GENERATOR FEATURES
Revolving field heavy duty generator
Directly connected to the engine
Operating temperature rise 120 °C above a 40 °C ambient
Insulation is Class H rated at 150 °C rise
All models are fully prototyped tested
VOLTAGE REGULATOR
TYPE ................................................................................................................Electronic
SENSING ................................................................................................... Single Phase
REGULATION .......................................................................................................... ± 1%
FEATURES ............................................................................................... V/F Adjustable
Adjustable Voltage and Gain
LED Indicators
CONTROL PANEL FEATURES
SEVEN LED INDICATOR LIGHTS
ADDITIONAL FUNCTIONS
• System ready
• Utility sensing
• Low fuel pressure
• Delay on utility failure for engine start
• Low battery
• Engine warm-up before transfer
• Low oil pressure
• Delay to retransfer to utility
• High coolant temp/low coolant temp
• Engine cooldown timer
• Overspeed
• Exerciser not set
• Overcrank
• Hour meter
INTERNAL FUNCTIONS:
• 3 position switch (auto, off and manual)
• 2 wire start for any transfer switch
• Communicates with the Generac RTS transfer switch
• Built-in 7 day exerciser
• Selectable engine speed at exercise
• Governor controller is built into the master control board
• Temperature range -40 °
C to 70 °C
ENGINE SPECIFICATIONS
MAKE ................................................................................................................ Generac
MODEL .................................................................................................................Inline 4
CYLINDERS ...................................................................................................................4
DISPLACEMENT .................................................................................................2.4 Liter
BORE ........................................................................................................................3.41
STROKE ....................................................................................................................3.94
COMPRESSION RATIO ...........................................................................................8.5:1
INTAKE AIR SYSTEM ....................................................................... Naturally Aspirated
VALVE SEATS ..................................................................................................Hardened
LIFTER TYPE ....................................................................................................Hydraulic
GOVERNOR SPECIFICATIONS
TYPE ................................................................................................................Electronic
FREQUENCY REGULATION ....................................................................... Isochronous
STEADY STATE REGULATION ..............................................................................± 0.25
ADJUSTMENTS FOR:
Speed .....................................................................................................Yes
Droop ......................................................................................................Yes
ENGINE LUBRICATION SYSTEM
OIL PUMP ................................................................................................................Gear
OIL FILTER ............................................................................. Full flow spin-on cartridge
CRANKCASE CAPACITY ...................................................................................4 Quarts
ENGINE COOLING SYSTEM
TYPE .....................................................................................................................Closed
WATER PUMP .................................................................................................Belt driven
FAN SPEED .............................................................................................................1980
FAN DIAMETER .......................................................................................... 17.75 inches
FAN MODE ........................................................................................................... Pusher
FUEL SYSTEM
FUEL TYPE ..........................................................................Natural gas, propane vapor
CARBURETOR...............................................................................................Down Draft
SECONDARY FUEL REGULATOR ................................................................... Standard
FUEL SHUT OFF SOLENOID .......................................................................... Standard
OPERATING FUEL PRESSURE ..................................................................5” - 14” H2O
ELECTRICAL SYSTEM
BATTERY CHARGE ALTERNATOR .............................................................12V 30 Amp
STATIC BATTERY CHARGER .............................................................................. 2 Amp
RECOMMENDED BATTERY ............................................................Group 26, 525CCA
SYSTEM VOLTAGE .............................................................................................12 Volts
