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
