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750kW 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.
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PMG exciter for superior regulation and response.
■
Three phase sensing on regulator with EMI protection.
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Skewed rotor for smooth voltage wave form.
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Vacuum impregnated epoxy varnish - Fungus resistant per
MIL-I-24092.
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Sustain short circuit current at 300% of rated current up to
10 seconds.
Alternator Features
Engine Electrical System
Battery Charging Alternator Ground Type Negative
Volts 24 VDC
Ampere Rating 35A
Starter Motor Rated Voltage 24 VDC
Minimum Recommended Battery for 0 °C /
Cold Cranking Performance
1280 CCA
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
Standby Rating: 125
o
C
Prime Rating: 105
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 2602 2082
277/480 Volt 3 0.8 1128 902
The EGC750C Sound Attenuated Generator is
configured for standard 60 Hz, 208V and 480V output.
Special voltage outputs are available (special
order).
Lubrication System
Type Full Pressure System
Oil Filters 4 Spin-on, Full Flow
Oil Capacity with Filters 35 gal. (140.0 L)
Engine Specifications
Manufacturer/Model Cummins QST30-G1
Engine Type
4-cycle, Turbocharged,
Aftercooled
Cylinder Arrangement V12
Displacement 1860 in
3
(30.5 L)
Bore 5.51 in. (140 mm)
Stroke 6.50 in. (165 mm)
Compression Ratio 14:1
Piston Speed (60Hz) 32.5 ft./sec. (9.9 m/sec)
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)
Standby: 269 psi (1854 kPa)
Prime: 244 psi (1682 kPa
Rated RPM (60 Hz) 1800 RPM
Max. Power At Rated RPM (with fan)
Standby: 1135 hp (846 kW)
Prime: 1030 hp (768 kW)
Governor: Type Electronic
Frequency Regulation: Steady State ± 0.5%
Air Cleaner Type - All Models Dry, Dual Element