SPECIFICATIONS
GENERATOR
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) ............................................45kW*
* NOTE: Generator rating and performance in accordance with ISO8528-5, BS5514, SAE J1349,
ISO3046 and DIN 6271 Standards. KW rating is based on LPG fuel and may derate with natural
gas.
Excitation System ....................................................................Direct
Generator Output Voltage/kW - 60 Hz kW Amp CB Size
120/240V, 1-phase, 1.0 pf 45 188 200
120/208V, 3-phase, 0.8 pf 45 156 175
277/480V, 3-phase, 0.8 pf 45 68 80
Generator Locked Rotor KVA Available @ Voltage Dip of 35%
Single-phase or 208, 3-phase ............................................ 80 KVA
480V, 3-phase .................................................................. 100 KVA
ENGINE
Make ................................................................................... Generac
Model ..................................................................................... In Line
Cylinders and Arrangement ............................................................ 4
Displacement ....................................................................... 2.4 Liter
Bore ...................................................................................... 3.41 in.
Stroke ................................................................................... 3.94 in.
Compression Ratio ...............................................................8.5-to-1
Air Intake System ...............................................Naturally Aspirated
Valve Seats ....................................................................... Hardened
Lifter Type .......................................................................... Hydraulic
Engine Parameters
Rated Synchronous RPM ..............................................60 Hz, 3600
HP at rated kW ..................................................................60 Hz, 71
Exhaust System
Exhaust Flow at Rated Output 60 Hz .................................. 429 cfm
Exhaust Temperature at Rated Output ................................ 1150° F
Combustion Air Requirements (Natural Gas)
Flow at rated power, 60 Hz ................................................. 144 cfm
Governor
Type .................................................................................. Electronic
Frequency Regulation ...................................................Isochronous
Steady State Regulation ......................................................± 0.25%
Engine Lubrication System
Type of Oil Pump ...................................................................... Gear
Oil Filter ............................................... Full Flow Spin-on, Cartridge
Crankcase Oil Capacity ....................................................4 U.S. qts.
COOLING SYSTEM
Type ...................................................Pressurized Closed Recovery
Water Pump .................................................................... Belt Driven
Fan Speed .........................................................................2150 rpm
Fan Diameter .....................................................................22 inches
Fan Mode ................................................................................ Puller
Air Flow (inlet air including alternator and
combustion air) ...........................................................4500 ft
3
/min.
Coolant Capacity ........................................................ (3.0 U.S. gal.)
Heat Rejection to Coolant ..........................................173,000 Btu/h
Maximum Operating Air Temp. on Radiator ..............60° C (150° F)
Maximum Ambient Temperature ................................50° C (140° F)
FUEL SYSTEM
Type of Fuel ......................................... Natural Gas, Propane Vapor
Carburetor ...................................................................... Down Draft
Secondary Fuel Regulator .................................................Standard
Fuel Shut-off Solenoid ........................................................Standard
Operating Fuel Pressure ...................... 5 in. - 14 in. Water Column
Fuel Consumption - ft
3
/hr (Natural Gas/LPV)
Exercise 25% 50% 75% 100%
Cycle Load Load Load Load
102/40.4 194/77.1 373/148 520/206.3 720/286
ELECTRICAL SYSTEM
Battery Charge Alternator ............................................12V, 30 Amp
Static Battery Charger ............................................................2 Amp
Recommended Battery ...................................... Group 26, 525CCA
System Voltage .....................................................................12 Volts
Voltage Regulator
Type .................................................................................. Electronic
Sensing ........................................................................ Single-phase
Regulation ................................................................................± 1%
Features ................................................. V/F Adjustable, Adjustable
Voltage and Gain LED Indicators
Power Adjustment for Ambient Conditions
Temperature Deration
3% for every 10° C above °C ..................................................... 25
1.65% for every 10° above °F .................................................... 77
Altitude Deration
1% for every 100 m above m ................................................... 183
3% for every 1000 ft. above ft. ................................................. 600
Controller .................................................R-200
6-1
Standby Generator Sets
Specifications
GenSpec020 Rev. B 05/06
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