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 260KW Chongqing Cummins generator set features a high-strength integrated design for the engine block and cylinder head, effectively reducing operational failures. Its robust structure ensures long-term continuous operation, delivering stable and reliable quality with an excellent market reputation.
High Reliability:
Equipped with Cummins’ advanced PT fuel system, it includes a unique overspeed protection feature. The low-pressure fuel supply design reduces fuel lines and simplifies system structure, significantly lowering the probability of faults. Based on Cummins’ mature overall power system design philosophy, the equipment maintains stable operation even under complex working conditions, demonstrating outstanding reliability.
Excellent Performance:
It adopts an efficient Cummins exhaust gas turbocharger for better air intake and higher combustion efficiency. Coupled with pressure-type pulse exhaust technology, it fully recovers exhaust energy to enhance combustion efficiency. Even under low-load conditions, it maintains high output, effectively reducing specific fuel consumption.
The generator set delivers stable power output, ample torque, strong power, and fast transient response, with excellent load adaptability and torque reserve performance.
Easy Maintenance:
The overall modular structure design integrates components in blocks with a compact layout. Parts are easy to disassemble and reuse. With standardized design across the platform, spare parts compatibility is high, maintenance costs are low, and repair efficiency is improved, significantly reducing downtime.
Strong Adaptability:
The generator set provides stable power output and fuel efficiency, adapting to various complex operating conditions. It tolerates a wide range of fuel qualities and demonstrates excellent environmental adaptability, suitable for high-temperature, high-humidity, high-altitude, dusty, and other challenging application scenarios.
Technical Parameters
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Unit power |
260KW |
Engine |
Chongkang NTA855-G1B |
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Generator |
Yangzhou Kangcheng KC260-4 |
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Engine: NTA855-G1B |
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 |
468 |
260 |
0.8 |
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Engine parameters |
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Manufacturer/Model |
Chongkang/NTA855-G1B |
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Intake system |
Supercharged, intercooled |
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Fuel system |
Cummins PT System |
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Number of cylinders/arrangement |
6-cylinder/inline |
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Displacement |
14L |
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cylinder bore * stroke |
140*152 mm |
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Compression ratio |
14.0:1 |
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Rated speed |
1500rpm |
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Engine power (main/spare) |
284KW/321KW |
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Speed control system |
Electronic speed control |
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Fuel system |
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Backup fuel consumption rate |
208.7 g/kw.h |
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Lubrication system |
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Lubricating oil capacity |
38.6 L |
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Cooling system |
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Coolant capacity |
20.8 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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