Specification

G4-250 (20RESCL) 7/15
Alternator Specifications
Alternator Specification s
Specifications Alternator
Manufacturer Kohler
Type 2-Pole, Rotating Field
Leads, quantity 4
Voltage regulator Digital
Insulation: NEMA MG1-1.66
Material Class H
Temperature rise
130_C Standby
Bearing: quantity, type 1, Sealed
Coupling Direct
Amortisseur windings Full
Voltage regulation, no-load to full-load
RMS
±1.0%
One-step load acceptance 100% of Rating
Peak motor starting kVA @ 240 V: 41
Alternator Features
D Compliance with NEMA, IEEE, and ANSI standards for
temperature rise.
D Self-ventilated and dripproof construction.
D Windings are vacuum-impregnated with epoxy varnish for
dependability and long life.
D Superior voltage waveform and minimum harmonic
distortion from skewed alternator construction.
D Digital voltage regulator with 1.0% no-load to full-load
RMS regulation.
D Rotating-field alternator with static exciter for excellent
load response.
D Total harmonic distortion (THD) from no load to full load with
a linear load is less than 5%.
Application Data
Engine
Engine Specifications
Manufacturer Kohler
Engine: model, type CH1000 4-Cycle
Cylinder arrangement V-2
Displacement, cm
3
(cu. in.) 999 (61)
Bore and stroke, mm (in.) 90 x 78.5 (3.54 x 3.1)
Compression ratio 8.8:1
Main bearings: quantity, type 2, Parent Material
Rated RPM 3600
Max. engine power at rated rpm,
kW (HP)
LPG, 60 Hz 23.0 (30.9)
Natural gas, 60 Hz 20.2 (27.1)
Cylinder head material Aluminum
Valve material
Steel/Stelliter
Piston type and material Aluminum Alloy
Crankshaft material Heat Treated, Ductile Iron
Governor: type Electronic
Frequency regulation, no load to full load Isochronous
Frequency regulation, steady state 0.5%
Air cleaner type Dry
Exhaust
Exhaust System
Exhaust temperature exiting the
enclosure at rated kW, dry, _C(_F)
260 (500)
Engine Electrical
Engine Electrical System
Ignition system Electronic,
Capacitive Discharge
Starter motor rated voltage (DC) 12
Battery (purchased separately):
Ground Negative
Volts (DC) 12
Battery quantity 1
Recommended cold cranking amps:
(CCA) rating for --18_C(0_F)
500
Group size 51
Lubrication
Lubricating System
Type Full Pressure
Oil capacity (with filter), L (qt.) 1.9 (2.0)
Oil filter: quantity, type 1, Cartridge
Oil cooler Integral
Fuel Pipe Size
Minimum Gas Pipe Size Recommendation, in. NPT
Pipe Length,
m (ft.)
Natural Gas
281,000 Btu/hr.
LPG
340,000 Btu/hr.
8 (25)
1 3/4
15 (50) 1 1
30 (100) 1 1/4 1
46 (150) 1 1/4 1 1/4
61 (200) 1 1/4 1 1/4