Milton CAT G25LTA 25 kW Spec Sheet - Manual (Page 2)

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).
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) ................................................................ 25 kW
EXCITATION SYSTEM ........................................................................................... Direct
NOTE: Generator rating and performance in accordance with
ISO8528-5, BS5514, SAE J1349, ISO3046, and DIN6271 standards.
ENGINE SPECIFICATIONS
ENGINE ............................................................................................................ Gaseous
TYPE ....................................................................................................................... Inline
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 .............................................................................................................2150
FAN DIAMETER ............................................................................................... 18 inches
FAN MODE ........................................................................................................... Pusher
COOLANT HEATER ....................................................................................1500W 120V
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 ............................................................................ 10 Amp
BATTERY ...........................................................................................Group 26, 525CCA
SYSTEM VOLTAGE .............................................................................................12 Volts
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 prototype models have passed three phase short circuit testing
VOLTAGE REGULATOR
TYPE ...............................................................................................................Full Digital
SENSING ........................................................................................................... 3 Phase
REGULATION ....................................................................................................... ± 1/4%
FEATURES .......................................................................Built into H-100 Control Panel
V/F Adjustable
Adjustable Voltage and Gain
CONTROL PANEL FEATURES
 TWO FOUR LINE LCD DISPLAYS READ:
• Voltage (all phases) • Current (all phases)
• Power factor • kW
• kVAR • Transfer switch status
• Engine speed • Low fuel pressure
• Run hours • Service reminders
• Fault history • Oil pressure
• Coolant temperature • Time and date
• Low oil pressure shutdown • High coolant temperature shutdown
• Overvoltage • Overspeed
• Low coolant level • Low coolant level
• Not in auto position (flashing light) • Exercise speed
 INTERNAL FUNCTIONS:
• I2T function for alternator protection from line to neutral and line to line short circuits
• Emergency stop
• Programmable auto crank function
• 2 wire start for any transfer switch
• Built-in 7 day exerciser
• Adjustable engine speed at exerciser
• RS232 port for GenLink
® control
• RS485 port remote communication
• Canbus addressable
• Governor controller and voltage regulator are built into the master control board
• Temperature range -40 °
C to 70 °C
APPLICATION
& ENGINEERING DATA
G25LTA