Filter
Top Products
6-1
SPECIFICATIONS
STATIONARY EMERGENCY GENERATOR
Type......................................................................Synchronous
Rotor Insulation .............................................................Class H
Stator Insulation ............................................................Class H
Total Harmonic Distortion ..............................................< 3.5%
Telephone Interference Factor (TIF) .................................. < 50
Alternator Output Leads 1-phase ..................................... 4-wire
Alternator Output Leads 3-phase ..................................... 6-wire
Bearings ..................................................................Sealed Ball
Coupling ................................................................Flexible Disc
Load Capacity (Standby Rating) ....................................70 kW*
*
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 ......................................................Brushless
Circuit Breaker Size (Amps)
Voltage LP kW CB Amps NG kW CB Amps
120/240 V - 1ø 67 300 292 64 300 267
120/208 V - 3ø 70 300 243 67 300 232
120/240 V - 3ø 70 250 211 67 250 201
277/480 V - 3ø 70 125 105 67 125 101
Generator Locked Rotor kVA Available @ Voltage Dip of 35%
Single-phase ..............................................................145 kVA
480 V, 3-phase ..........................................................160 kVA
208 V, 3-phase ..........................................................145 kVA
ENGINE
Make ........................................................................... Generac
Model .............................................................................V-type
Cylinders and Arrangement ...................................................10
Displacement ............................................................... 6.8 Liter
Bore............................................................ 90.2 mm (3.55 in.)
Stroke ....................................................... 105.9 mm (4.17 in.)
Compression Ratio..........................................................9-to-1
Air Intake System ......................................... Naturally Aspirated
Valve Seats ................................................................ Hardened
Lifter Type .................................................................. Hydraulic
Engine Parameters
Rated Synchronous rpm.........................................60 Hz, 1800
Exhaust System
Exhaust Flow at Rated Output 60 Hz .............................557 cfm
Exhaust Temperature at Rated Output ..............................890 °F
Combustion Air Requirements (Natural Gas)
Flow at rated power, 60 Hz ...........................................205 cfm
Governor
Type...........................................................................Electronic
Frequency Regulation .............................................Isochronous
Steady State Regulation ............................................ ± 0.25 %
Engine Lubrication System
Type of Oil Pump ...............................................................Gear
Oil Filter .......................................................Full Flow, Cartridge
Crankcase Oil Capacity ............................................ 5 U.S. qts.
COOLING SYSTEM
Type............................................................................... Closed
Water Pump ............................................................. Belt Driven
Fan Speed .........................................................................2300
Fan Diameter ..............................................................22 inches
Fan Mode ....................................................................... Pusher
Air Flow (inlet air including alternator and
combustion air) .................................................5200 ft3/min.
Coolant Capacity ....................................................4.5 U.S. gal.
Heat Rejection to Coolant ....................................287,000 Btu/h
Maximum Operating Air Temp. on Radiator ......... 60 °C (150 °F)
Maximum Ambient Temperature ......................... 50 °C (140 °F)
FUEL SYSTEM
Type of Fuel ........................................ Propane or Natural Gas*
Carburetor............................................................... Down Draft
Secondary Fuel Regulator............................................Standard
Fuel Shut-off Solenoid ................................................. Standard
Operating Fuel Pressure ...............11 in. - 14 in. Water Column
Fuel Consumption - ft
3
/hr (Natural Gas/LPV)
Exercise 25% 50% 75% 100%
Cycle Load Load Load Load
110/44.2 260/104 500/200 696/280 1020/411
* Engine is not field convertible between natural gas and propane. Jet size and ignition timing
are factory set for the specific fuel.
ELECTRICAL SYSTEM
Battery Charge Alternator .....................................12 V, 30 Amp
Smart Charger .......................................................12 V, 2 Amp
Recommended Battery .......................................... 24F 525CCA
System Voltage ............................................................ 12 Volts
NOTE:
Battery dimensions (L x W x H) for the Group 24 battery should
not exceed 10 3/4" x 6 13/16" x 9" (273 mm x 173 mm x 229
mm).
Voltage Regulator
Type...........................................................................Electronic
Regulation ........................................................................± 1%
Power Adjustment for Ambient Conditions
Temperature Deration
3% for every 10 °C above °C ..............................................25
1.65% for every 10 °F above °F ..........................................77
Altitude Deration
1% for every 100 m above m............................................183
3% for every 1000 ft. above ft. .........................................600
Controller ................................................................. Nexus
GenSpec091 Rev. B 01/14
Specifications