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500kW Containerized
Diesel Generator Set
APPLICATION DATA
■
All ratings tested per MIL-STD-705 as applicable.
■
Generator protection for overload and short circuit.
■
Generator is designed and built within NEMA, IEEE and
ANSI standards for temperature rise.
■
PMG exciter for superior regulation and response.
■
Three phase sensing on regulator.
■
Skewed rotor for smooth voltage wave form.
.
■
Optional - Vacuum impregnated epoxy varnish, fungus
resistant per MIL-I-24092.
Alternator Features
Engine Specifications
Manufacturer/Model Cummins / QSX15-G9
Engine Type
4-cycle, Turbocharged,
Air to Water Aftercooled
Cylinder Arrangement 6 In-line
Displacement 912 in
3
(15 L)
Bore 5.39 in. (137 mm)
Stroke 6.65 in. (169 mm)
Compression Ratio 17 : 1
Piston Speed (60Hz) 1995 ft./min (10.1 m/sec)
Bearing Main: Number 7
Bearing Main: Type Replaceable, Precision
Cylinder Block
Cast iron with wet, replaceable
cylinder liners
Cylinder Head Material Cast iron
Crankshaft Material Forged steel
Brake Mean Effective Pressure (BMEP) 360 psi (2482 kPa)
Rated RPM (60 Hz) 1800 RPM
Max. Power At Rated RPM (without fan) 755 hp (563 kW)
Governor: Type Electronic
Frequency Regulation: Steady State ± 0.5%
Air Cleaner Type - All Models Dry, Dual Element
Engine Electrical System
Battery Charging Alternator Ground Type Negative
Volts 24 VDC
Ampere Rating 70A
Starter Motor Rated Voltage 24 VDC
Minimum Recommended Battery for
0 °C / Cold Cranking Performance
1425 Ah
Alternator Specifications
Make Marathon Magna Max
Type 4-Pole, Rotating Field
Number of Leads 10 or 12
Generator Type Rotating Field; PMG
Voltage Regulator Solid State, Digital, Model DVR2000
Insulation NEMA MG1-1.66
Material Class H
Temperature Rise 105
o
C / 130
o
C
Bearing: Number, Type Single, Sealed
Coupling Flexible Disk
Amortisseur Windings Full
Excitation Voltage Regulated, Brushless
Voltage Regulation (no load to full load) 0.25%
One Step Load Acceptance
% of rating per NFPA-110
100
Generator Efficiency at Full Load 93%
Phase Sequence ABC (L1, L2, L3)
L-L Harmonic Max Total 5.0%
L-L Harmonic Max Single 3.0%
Amperage
Voltage Phase
Power
Factor
Continuous Amperes
Standby Prime
120/208 Volt 3 0.8 1910 1848
277/480 Volt 3 0.8 827 800
The EGC500C Sound Attenuated Generator is
configured for standard 60 Hz, 208V or 480V output.
Special voltage outputs are available (special
order)
.
Derating
Derating Factors (60 Hz) Altitude Ambient Temperature
The engine may be operated
up to 3000 ft. (915 m) altitude
without derating at 1800 rpm.
>3000 ft. =
1.8% per 1000 ft.
(300 m)
+10% per 10°C (18°F)
EGC500C Rev 0