User Manual

ENGINE SPECIFICATIONS
General Cooling System
Make Generac Cooling System Type Pressurized, Closed Recovery
EPA Emissions Compliance Stationary Emergency Water Pump Flow 54 gal/min
EPA Emissions Reference See Emissions Data Sheet Fan Type Puller
Cylinder # 6 Fan Speed (rpm) 1632
Type Inline Fan Diameter mm (in.) 990 (39)
Displacement - L 13.3 Coolant Heater Wattage 2000
Bore - mm (in.) 136.91 (5.39) Coolant Heater Standard Voltage 240VAC
Stroke - mm (in.) 150.11 (5.91)
Compression Ratio 10.5:1 Fuel System
Intake Air Method Turbocharged/Aftercooled Fuel Type Natural Gas
Number of Main Bearings 7 Carburetor Down Draft
Connecting Rods Carbon Steel Secondary Fuel Regulator Standard
Cylinder Head Cast Iron, Overhead Valve Fuel Shut Off Solenoid Standard
Cylinder Liners Wet, Replaceable Operating Fuel Pressure 11" - 15" H
2
O
Ignition Altronic CD1
Pistons Heat Resistant Alloy Engine Electrical System
Crankshaft Die-Forged Carbon Steel System Voltage 24VDC
Lifter Type Solid Battery Charging Alternator Std
Intake Valve Material Special Heat-Resistant Steel Battery Size (at 0ºC) 1155 CCA
Exhaust Valve Material Iconel Alloy, High Temp Battery Group 8D
Hardened Valve Seats High Temp Alloy Stellite Faced Battery Voltage 12VDC
Ground Polarity Negative
Lubrication System
Oil Pump Type Gear
Oil Filter Type Full-Flow, Cartridge
Crankcase Capacity - L (qts) 27 (28.5)
ALTERNATOR SPECIFICATIONS
Standard Model 520mm Voltage Regulator Type Full Digital
Poles 4 Number of Sensed Phases 3
Field Type Revolving Regulation Accuracy (Steady State) ± 0.25%
Insulation Class - Rotor H
Insulation Class - Stator H Engine Governing
Total Harmonic Distortion < 5% Governor Electronic
Telephone Interference Factor (TIF) < 50 Frequency Regulation (Steady State) ± 0.25%
Standard Excitation Permanent Magnent
Bearings Sealed Ball
Coupling Gear Drive
Load Capacity - Standby 100%
Prototype Short Circuit Test Yes
CODES AND STANDARDS COMPLIANCE (WHERE APPLICABLE)
NFPA 99 BS5514
NFPA 110 SAE J1349
ISO 8528-5 DIN6271
ISO 1708A.5 IEEE C62.41 TESTING
ISO 3046 NEMA ICS 1
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Rating Definitions:
Standby – Applicable for a varying emergency load for the duration of a utility power outage with no overload capability. (Max. load factor = 70%)
Prime – Applicable for supplying power to a varying load in lieu of utility for an unlimited amount of running time. (Max. load factor = 80%) A 10% overload capacity is available for 1 out of every
12 hours.
G300LG application and engineering data
G300LG 300kW
24VDC
Std
1155 CCA
8D
(2) 12VDC
Negative