The engine is rarely why a Weichai diesel generator fails its site acceptance test. In most of the failure reports we review, the cause is one of three specification errors: the l...
READ MOREProduct Advantages
Durability:
The 400KW Dongfeng Cummins generator set is based on the advanced QS platform architecture. It features high system integration, a scientifically optimized structural layout, and robust, wear-resistant core components, maintaining stable and reliable performance under high-load and long-duration continuous operation.
The engine uses high-pressure common rail and in-cylinder direct injection combustion technology, ensuring more complete and stable combustion. This effectively reduces carbon buildup and mechanical wear, lowers fatigue on core components, significantly extends engine life, and enhances overall durability and long-term operational stability.
Excellent Performance:
Equipped with a high-pressure common rail plus in-cylinder direct injection combustion system, the generator set achieves higher combustion efficiency and lower fuel consumption. It meets Stage III emission standards without relying on after-treatment systems, balancing power performance with environmental compliance.
The advanced QS platform control system offers diverse intelligent control strategies, automatically adjusting fuel injection and combustion parameters based on varying operating conditions and application scenarios. This ensures efficient output under multiple load conditions, fast power response, and stable output, meeting the high-performance requirements of large-capacity applications.
High Reliability:
The QS platform features a mature, integrated system design. The power, electronic control, and fuel systems are highly integrated and well-matched, ensuring stable operational logic and a low overall failure rate. Validated under various complex operating conditions and harsh environments, it maintains high stability and safety even under high-load operation, frequent start-stop cycles, and continuous power supply, guaranteeing reliable and continuous electricity.
Easy Maintenance:
The modular platform design offers high system integration, a clear and organized layout, and ample space for inspection and maintenance. Routine service operations are simple and efficient. Platform-based component design ensures high parts interchangeability and standardized maintenance procedures, effectively reducing maintenance complexity and operating costs while improving overall equipment efficiency and economic performance.
Technical Parameters
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Unit power |
400 KW |
Engine |
Dongfeng Cummins QSZ13-G3 |
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Generator |
Yangzhou Kangcheng KC400-4 |
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Engine: QSZ13-G3 |
Generator: single bearing, IP22 protection rating, Class H insulation |
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Radiator rated for 40°C ambient temperature, cooling fan with safety guard, air filter, fuel filter, and oil filter |
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Common steel base frame, vibration isolators, standard control panel |
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24V charging alternator, industrial-grade silencer (muffler), and standard connection fittings |
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Maintenance-free lead-acid battery and battery connecting cables |
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Voltage level |
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Voltage V |
Frequency Hz |
Number of phases |
Rated current A |
Power KW |
Power factor |
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400/230 |
50 |
3 |
720 |
400 |
0.8 |
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Engine parameters |
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Manufacturer/Model |
Dongfeng Cummins/QSZ13-G3 |
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Inhalation method |
Turbocharged & Air-to-Air Intercooled |
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Fuel system |
Electronically controlled high-pressure common rail injection system |
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Compression ratio |
17:1 |
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Number of cylinders/arrangement |
6-cylinder/inline |
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Displacement |
13.0 L |
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Cylinder bore * stroke |
130*163 mm |
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Rated speed |
1500rpm |
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Engine power (main/spare) |
450KW/470KW |
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Speed control system |
High-pressure common rail |
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Fuel system |
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100% backup power |
193 g/kw.h |
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Basic output power 25% |
199 g/kw.h |
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Basic output power 50% |
187 g/kw.h |
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Basic output power 75% |
189 g/kw.h |
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Basic output power 100% |
193 g/kw.h |
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Lubrication system |
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Lubricating oil capacity |
45.42 L |
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Cooling system |
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Coolant capacity |
23.1 L |
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Generator parameters |
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Number of phases |
3 |
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Wiring method |
Three-phase four-wire, Y-type interconnection |
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Number of bearings |
1 |
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Power factor |
0.8 |
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Protection level |
IP22 |
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Altitude requirements |
≤1000m |
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Excitation system |
Brushless self-excited magnet |
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Insulation class/temperature rise class |
H/H |
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Telephone Influence Factor (TIF) |
<50 |
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Telephone harmonic coefficient THF |
<2% |
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Unit performance parameters |
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Voltage setting range |
≥±5% |
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Steady-state voltage regulation |
≤±1% |
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Transient voltage deviation (100% sudden power reduction) |
≤+25% |
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Transient voltage deviation (sudden power increase) |
≤-20% |
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Voltage recovery time (100% sudden power reduction) |
≤6S |
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Voltage recovery time (sudden power increase) |
≤6S |
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Frequency setting range |
0-5% |
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Steady-state frequency band |
≤1.5% |
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Transient frequency deviation (100% sudden power reduction) |
≤+12% |
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Transient frequency deviation (sudden power increase) |
≤-10% |
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Frequency recovery time (100% power drop) |
≤5S |
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Frequency recovery time (sudden power increase) |
≤5S |
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Unit weight |
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Unit size |
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