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SPECIFICATIONS
STATIONARY EMERGENCY GENERATOR
Type ............................................................................. Synchronous
Rotor Insulation ................................................................... Class H
Stator Insulation .................................................................. Class H
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
120/240V, 3-phase, 0.8 pf 45 135 150
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 (45kW) ...............................72 KVA
480V, 3-phase (45kW) ........................................................80 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 ...............................................................9.5-to-1
Air Intake System ...............................................Naturally Aspirated
Valve Seats ....................................................................... Hardened
Lifter Type .......................................................................... Hydraulic
Spark Plug Gap .............................1.07-1.17mm (0.042-0.046 inch)
Engine Parameters
Rated Synchronous RPM ..............................................60 Hz, 3600
Exhaust System
Exhaust Flow at Rated Output 60 Hz (45kW) .....................420 cfm
Exhaust Temp. at Rated Output (45kW) .............................. 1100° F
Combustion Air Requirements (Natural Gas)
Flow at rated power, 60 Hz (45kW) ..................................... 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 .......... 5.25 U.S. qts. (including filter capacity)
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) ...........................................................2725 ft
3
/min.
Coolant Capacity ........................................................(3.0 U.S. gal.)
Heat Rejection to Coolant (45kW) ..............................193,000 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
45kW 65/25 210/83 380/151 545/216 730/290
ELECTRICAL SYSTEM
Battery Charge Alternator ............................................12V, 30 Amp
Static Battery Charger .........................................................2.5 Amp
Recommended Battery ...................................... Group 26, 525CCA
System Voltage .....................................................................12 Volts
Voltage Regulator
Type .................................................................................. Electronic
Sensing ........................................................................Single-phase
Regulation ................................................................................± 1%
Features ..............................................Adjustable Voltage and Gain
Power Adjustment for Ambient Conditions
Temperature Deration
3% for every 10° C above °C (45kW) ........................................25
1.65% for every 10° above °F (45kW) .......................................77
Altitude Deration
1% for every 100 m above m (45kW) ......................................183
3% for every 1000 ft. above ft. (45kW) .....................................600
Controller ................................................................. Nexus
6-1
GenSpec084 Rev. A 05/10
Specifications