Name: China Cummins CCEC Cummins CCEC NTAA855-G7 Diesel Engine Factory - Good Price - Kyson
Brand: Kyson
SKU: 250014916

Chongqing Kyson Machinery Equipment Co., Ltd. is one of the leading manufacturers and suppliers of cummins ccec cummins ccec ntaa855-g7 diesel engine in China. With abundant experience, our factory offer high quality products made in China with competitive price. Welcome to place an order.

Description

General data of Cummins CCEC NTAA855-G7 Diesel Engine forGenerator Set
Engine Mode	CumminsCCEC NTAA855-G7
Type	Stroke, In-line, 6 Cylinder
Displacement	14L
Bore&Stroke	140*152 mm
Dry Weight(Fan to flywheel engine)	1270 KG
Wet Weight(Fan to flywheelengine)	1320 KG
Centerof Gravity from Rear Face of Flywheel Housing	704 mm
CenterofGravity AboveCrankshaft Centerline	140 mm

Technicaldata of Cummins CCEC NTAA855-G7 DieselEngine forGenerator Set
Aspiration	Turbocharged,Air-Air Aftercooled
Fuel System	PT Pump Direct Injection
Coolantcapacity-engine only	20.8L
Oil Pan Capacity-Low/High	28.4/36 L
Idle speed	575-650 RPM
Maximum No-Load Govemed Speed	1800 RPM
Maximum Overspeed Capability	2700 RPM
Frictional loss powerlrated output	22 KW
Compression ratio	14.0:1
Piston Speed	7.62 m/sec
Firing Order	1-5-3-6-2-4

Performance Date of Cummins CCEC NTAA855-G7 Diesel Engine for Generator Set
Rated Output/Speed	343KW/460HP/1500RPM
Standby Output/Speed	377KW505HP/1500RPM
Torque/RatedOutput	2184N.m/1500RPM
Torque/Standby Output	2400N.m/1500RPM
Fuel Consumption/Rated Output	86 Lh
Fuel Consumption/Standby output	94 Lh

The above is general technicial information of Cummins NTAA855-G7 diesel engine for generator set. it is also for us to supply the Cummins NTAA855-G7 genuine engine parts and Cummins diesel generator set of this engine.

Chongkang Series Cummins Diesel Generator Set NTAA855-G7: Main Power 300kW, Standby Power 330kW

The Chongkang series Cummins diesel generator set NTAA855-G7 is designed for applications requiring a main power output of 300kW and a standby power output of 330kW. This generator set offers reliable performance and durability, making it suitable for various industrial and commercial applications.

### Exhaust Emission of Blue Smoke in the 300kW Cummins Diesel Generator Set

Blue smoke in the exhaust of the 300kW Cummins diesel generator set is primarily caused by excessive engine oil entering the combustion chamber and participating in the combustion process. Any factor that allows engine oil to enter the combustion chamber will result in blue smoke emissions. The main causes can be summarized as follows:

1. **Piston Ring Breakage**: Broken piston rings allow oil to leak into the combustion chamber.
2. **Clogged Oil Return Holes on Oil Rings**: Carbon deposits can block the oil return holes on the oil rings, preventing them from effectively scraping excess oil off the cylinder walls.
3. **Misaligned Piston Ring Openings**: If the openings of multiple piston rings align, it can create a path for oil to bypass the rings and enter the combustion chamber.
4. **Severe Wear or Carbon Buildup on Piston Rings**: Worn or carbon-stuck piston rings lose their sealing ability, allowing oil to seep into the combustion chamber.
5. **Incorrect Installation of Gas Rings**: Improperly installed gas rings can cause oil to be scraped into the cylinder and burned.
6. **Insufficient Elasticity or Poor Quality of Piston Rings**: Substandard or worn-out piston rings may not provide adequate sealing.
7. **Faulty Valve Guide Oil Seals**: Improper installation or aging of valve guide oil seals can lead to oil leakage into the combustion chamber.
8. **Severe Wear on Pistons and Cylinder Liners**: Excessive wear on these components can increase the clearance, allowing oil to enter the combustion chamber.
9. **Excessive Oil Level**: Overfilling the crankcase with oil can cause excessive splashing, leading to oil being drawn into the combustion chamber faster than the oil rings can scrape it off.

Blue smoke emissions are typically accompanied by increased oil consumption. Drivers often refer to this phenomenon as "burning oil." The normal ratio of oil to fuel consumption is between 0.5% and 0.8%. When oil consumption exceeds this range, blue smoke becomes visible in the exhaust. Diagnosing and resolving blue smoke issues usually requires disassembly and inspection of the engine to identify the root cause and determine the appropriate corrective actions. Cold-start blue smoke with normal oil consumption may be related to fuel quality and is generally considered normal.

### Inspection of Exhaust Smoke

Exhaust smoke should be inspected when the engine is at operating temperature. Changes in the color of the exhaust smoke during low-speed, medium-speed, high-speed, and acceleration phases should be carefully analyzed to diagnose potential issues.

### Power Decrease After Extended Use

After extended use, if the 300kW Cummins diesel generator set experiences a power decrease while other aspects remain normal, the following factors should be investigated:

a. **Dirty Air Filter**: A clogged air filter can restrict airflow, leading to insufficient intake air. Cleaning or replacing the air filter can resolve this issue.
b. **Contaminated Fuel Filter**: A dirty fuel filter can reduce fuel flow, resulting in insufficient fuel injection. Replacing or cleaning the fuel filter is necessary.
c. **Incorrect Ignition Timing**: Misalignment of ignition timing can affect engine performance. Adjusting the ignition timing can restore optimal operation.