
Specifications
SPECIFICATIONS
STATIONARY EMERGENCY GENERATOR
Type  | Synchronous  | 
Rotor Insulation  | Class H  | 
Stator Insulation  | Class H  | 
Telephone Interference Factor (TIF)  | < 50  | 
Alternator Output Leads   | |
Bearings  | Sealed Ball  | 
Coupling  | Flexible Disc  | 
Load Capacity (Standby Rating)  | 45kW*  | 
*NOTE: Generator rating and performance in accordance with 
Excitation System  | 
  | Direct  | |
Generator Output Voltage/kW - 60 Hz  | kW  | Amp  | CB Size  | 
120/240V,   | 45  | 188  | 200  | 
120/208V,   | 45  | 156  | 175  | 
120/240V,   | 45  | 135  | 150  | 
277/480V,  | 45  | 68  | 80  | 
Generator Locked Rotor KVA Available @ Voltage Dip of 35%  | |||
  | 72 KVA  | ||
480V,   | 
  | 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  | ||
Air Intake System  | Naturally Aspirated  | |
Valve Seats  | Hardened  | |
Lifter Type  | Hydraulic  | |
Spark Plug Gap  | ||
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   | 
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  | 2725 ft3/min.  | |
combustion air) | 
  | |
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   | 
  | Standard  | |||
Operating Fuel Pressure  | 5 in. - 14 in. Water Column  | ||||
Fuel Consumption - ft3/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  | 
  | 
  | |||
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  | ||
05/10 A .Rev GenSpec084