500kW Containerized Diesel Generator Set
APPLICATION DATA
Alternator Specifications |
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Make | Marathon Magna Max | |
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Type | ||
Number of Leads | 10 or 12 | |
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Generator Type | Rotating Field; PMG | |
Voltage Regulator | Solid State, Digital, Model DVR2000 | |
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Insulation | NEMA | |
Material | Class H | |
Temperature Rise | 105oC / 130oC | |
Bearing: Number, Type | Single, Sealed | |
Coupling | Flexible Disk | |
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Amortisseur Windings | Full | |
Excitation | Voltage Regulated, Brushless | |
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Voltage Regulation (no load to full load) | 0.25% | |
One Step Load Acceptance | 100 | |
% of rating per | ||
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Generator Efficiency at Full Load | 93% | |
Phase Sequence | ABC (L1, L2, L3) | |
5.0% | ||
3.0% |
The EGC500C Sound Attenuated Generator is configured for standard 60 Hz, 208V or 480V output. Special voltage outputs are available (special order).
Alternator Features
■All ratings tested per
■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
Engine Specifications |
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Manufacturer/Model | Cummins / | |
Engine Type | ||
Air to Water Aftercooled | ||
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Cylinder Arrangement | 6 | |
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Displacement | 912 in3 (15 L) | |
Bore | 5.39 in. (137 mm) | |
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Stroke | 6.65 in. (169 mm) | |
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Compression Ratio | 17 : 1 | |
Piston Speed (60Hz) | 1995 ft./min (10.1 m/sec) | |
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Bearing Main: Number | 7 | |
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Bearing Main: Type | Replaceable, Precision | |
Cylinder Block | Cast iron with wet, replaceable | |
cylinder liners | ||
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Cylinder Head Material | Cast iron | |
Crankshaft Material | Forged steel | |
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Brake Mean Effective Pressure (BMEP) | 360 psi (2482 kPa) | |
Rated RPM (60 Hz) | 1800 RPM | |
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Max. Power At Rated RPM (without fan) | 755 hp (563 kW) | |
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Governor: Type | Electronic | |
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Frequency Regulation: Steady State | ± 0.5% | |
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Air Cleaner Type - All Models | Dry, Dual Element |
Amperage
| Voltage | Phase | Power | Continuous Amperes | ||
| Factor | Standby | Prime | |||
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120/208 Volt | 3 | 0.8 | 1910 | 1848 | |
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277/480 Volt | 3 | 0.8 | 827 | 800 | |
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Engine Electrical System
Battery Charging Alternator Ground Type | Negative | |
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Volts | 24 VDC | |
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Ampere Rating | 70A | |
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Starter Motor Rated Voltage | 24 VDC | |
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Minimum Recommended Battery for | 1425 Ah | |
0 °C / Cold Cranking Performance | ||
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Derating
Derating Factors (60 Hz) | Altitude | Ambient Temperature |
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The engine may be operated | >3000 ft. = |
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up to 3000 ft. (915 m) altitude | 1.8% per 1000 ft. | +10% per 10°C (18°F) |
without derating at 1800 rpm. | (300 m) |
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EGC500C Rev 0
