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CUMMINS 250kw Natural Gas Generator Set

 

CUMMINS 250KW Natural Gas Generator Set

CUMMINS 250KW Natural Gas Generator Set

CUMMINS SCG250 Natural Gas Generator Set 

Rated Output(KW) 250
Standby Output(KW) 275
Voltage(V) 400
Current(A) 450
Size(mm) 3000*1050*1780
Approximate weight(KG) 2850
Emission levels (Nox) Euro II emission(mg/m³)
Naturally aspirated engine intake air temperature None
Air temperature before entering the air to air intercooler   82-87(Deg C)
Air temperature after entering the air to air intercooler   35-42(Deg C)
Rated Power @ 0.8 power factor (w / pump s and w / o fan) 250KW (continuous operation)
Total energy input (100% load) 690(KW)
Electrical efficiency 36.20%
Thermal efficiency 87.90%
Control panel(Deepsea or others) Synchronizing Control, Multilingual Mode Digital Control, Diagnostic Function, Direct Text Indicate of Faults, MOBUS Communication Protocol, Compatible Communication, Exchange Telecommunications,  Wired Control Data Output, Automatic or manual start
   

Engine of CUMMINS SCG250 Natural Gas Generator Set 

Engine Model NT855
Type 6 cylinders in line
Bore * Stroke (mm) 140*152
Displacement(L) 14
Compression ratio 10.5:1
Rated speed(rpm) 1500/1800
Inlet type Exhaust Turbocharger/Air-Air Intercooler
Cooling type Cooling water tank
Fuel System Low and high pressure
ESC Type Special for U.S. GAC natural gas
Ignition sequence 1-5-3-6-2-4
The allowed maximum speed(Natural gas supply closed at this time) 2160 rpm
The allowed maximum rotating speed (The ignition system shut down at this time) 2160 rpm
Oil Capacity 36.7 L
Cooling water capacity 63.9 L
Maximum engine back pressure 10.2 kpa
Gas consumption(m3∕kw·h) <0.3
Rough oil consumption(g/kWh) <1.6
Radiator and oil cooler heat 84KW
Exhaust pipe heat radiation 95KW
Engine thermal radiation 13KW
Alternator thermal radiation 5KW
Cooling water temperature 95 Deg C
Oil temperature <120 Deg C
Exhaust pipe heat energy (above 120 º C section) 240 KW
Exhaust temperature (before vortex ) 660±15 Deg C
Exhaust Flow 2250 m³/h
Fan exhaust flow 12.3 m³/s
Noise level from 1 m  less than 100 db(A)
   

Alternator of CUMMINS SCG250 Natural Gas Generator Set 

Alternator Model Engga EG280L-250N
Excitation Method Brushless Permanent Magnet
Winding pitch 2/3 pitch
Number of poles 4
Bearing number 1
Stator Windings 12 ends
Insulation Class H class
Protection class IP 21 or IP 23
Load type Continuous operation
AVR Model WT-2
Alignment Fly wheel
Temperature Range Less than 125 degrees Celsius
Overload  Capacity- the percentage of rated power 110%
Waveform distortion rate, no-load <5%
Voltage Regulation Mode AVR
Voltage Regulation Range ±5%
Steady State Voltage Regulation ±1%
No-load line voltage sine wave distortion <2%
Telephone interference factor (TIF) <50

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