Specifications

SPECIFICATIONS

STANDBY EMERGENCY GENERATOR

Type......................................................................

Synchronous

Rotor Insulation.............................................................

Class H

Stator Insulation............................................................

Class H

Alternator Output Leads 3-phase .....................................

4-wire

Bearings ..................................................................

Sealed Ball

Coupling ................................................................

Flexible Disc

Load Capacity (Standby Rating) ...............................

25/30 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 ............................................................

 

Direct

Generator Output Voltage/kW - 60 Hz

 

 

 

kW

Amp

CB Size

120/240V, 1-phase, 1.0 pf

25/30

104/125

125/150

120/208V, 3-phase, 0.8 pf

25/30

87/104

100/125

120/240V, 3-phase, 0.8 pf

25/30

75/90

90/100

Generator Locked Rotor KVA Available @ Voltage Dip of 35%

25kW

 

30kW

 

35 KVA

 

45 KVA

 

ENGINE

 

 

 

Make ...........................................................................

 

Generac

Model .............................................................................

 

In Line

Cylinders and Arrangement .....................................................

 

4

Displacement...............................................................

 

1.6 Liter

Bore..............................................................................

 

3.15 in.

Stroke...........................................................................

 

3.13 in.

Compression Ratio.......................................................

 

9.5-to-1

Air Intake System.........................................

Naturally Aspirated

Valve Seats ............................................................

 

Replaceable

Lifter Type..................................................................

 

Hydraulic

Spark Plug Gap........................................

0.76mm (0.030 inch)

Engine Parameters

 

 

 

Rated Synchronous RPM .......................................

 

60 Hz, 3600

Exhaust System

 

 

 

Exhaust Flow at Rated Output 60 Hz:

25kW

30kW

 

 

240 cfm

260 cfm

Exhaust Temp. at Rated Output:

975°F

1025°F

Combustion Air Requirements (Natural Gas)

 

Flow at rated power, 60 Hz:

 

25kW

30kW

 

 

90 cfm

95 cfm

Governor

 

 

 

Type...........................................................................

 

Electronic

Frequency Regulation.............................................

 

Isochronous

Steady State Regulation ................................................

 

± .25%

Adjustments:

 

 

 

Speed.....................................................................

 

Selectable

Engine Lubrication System

 

Type of Oil Pump ...............................................................

Gear

Oil Filter .......................................................

Full Flow, Cartridge

Crankcase Oil Capacity ............................................

4 U.S. qts.

COOLING SYSTEM

Type...............................................................................

Closed

Water Pump.............................................................

Belt Driven

Fan Speed.........................................................................

2484

Fan Diameter...........................................................

17.7 inches

Fan Mode.......................................................................

Pusher

Air Flow (inlet air including alternator and

 

combustion air) ..................................................

1800 ft3/min.

Coolant Capacity....................................................

2.0 U.S. gal.

Heat Rejection to Coolant (25/35kW) ....112,000/135,000 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 - ft3/hr (Natural Gas/LPV)

 

 

Exercise

25%

50%

75%

100%

 

Cycle

Load

Load

Load

Load

25kW

60/24

120/48

220/87

310/123

390/155

30kW

60/24

145/58

260/103

370/147

470/187

ELECTRICAL SYSTEM

 

 

 

Battery Charge Alternator ......................................

12V, 15 Amp

Static Battery Charger .......................................

 

2.0 or 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 Automatic Gain

Power Adjustment for Ambient Conditions

 

Temperature Deration:

 

 

 

 

3% for every 10° C above °C

25kW

30kW

 

 

 

 

40

25

 

1.65% for every 10° above °F

104

77

 

Altitude Deration:

 

 

 

 

1% for every 100 m above m

25kW

30kW

 

 

 

 

915

182

 

3% for every 1000 ft. above ft.

2000

600

 

Controller

.................................................................

 

 

Nexus

6-1

GenSpec082.RevC12/11