500GF-NK Biogas Gas Generator Set Specifications
| Specification |
Parameter |
| Model of Generator |
500GF-NK |
| Rated Power |
500 kW |
| Rated Speed |
1000 r/min |
| Rated Voltage |
400 V |
| Rated Frequency |
50 Hz |
| Rated Power Factor |
0.8 (lag) |
| Supply Method |
Three-phase four-wire system |
| Excitation Method |
Brushless |
| Starting Method |
24V DC electric start |
| Cooling Method |
Closed water cooling |
| Speed Regulation |
Electronic speed regulation (WOODWARD) |
| Overall Dimensions |
6195 × 2200 × 2778 mm |
| Net Weight |
12,500 kg |
Voltage Performance
| Specification |
Parameter |
| Stable Regulating Rate |
±2.5% |
| Instantaneous Regulating Rate |
+22% to -18% |
| Recovery Time |
1.5 s |
| Fluctuation |
≤1.2% |
Frequency Performance
| Specification |
Parameter |
| Stable Regulating Rate |
0–5% |
| Instantaneous Regulating Rate |
≤±15% |
| Recovery Time |
<12 s |
| Fluctuation |
≤2% |
Engine Specifications
| Specification |
Parameter |
| Engine Model |
G12V190ZDZ-2 |
| Rated Power |
550 kW |
| Number and Layout of Cylinders |
12, 60° V |
| Type |
4-stroke, water-cooled, turbocharged and aftercooled, spark ignition, out-mixed |
| Bore |
190 mm |
| Stroke |
210 mm |
| Compression Ratio |
8:1 |
| Rated Speed |
1000 r/min |
| No-load Minimum Stable Speed |
700 r/min |
| Fuel |
Natural Gas |
| Gas Pressure |
80–150 kPa |
| Heat Consumption Rate |
11,000 kJ/kW·h |
| Oil Consumption |
≤1.6 g/kW·h |
| Oil Type |
Kunlun KCN 7810 / 15W40CD / Mobil Pegasus 705 |
| Oil Tank Capacity |
400 L |
| Exhaust Temperature Before Turbine |
≤650°C |
| Water Outlet Temperature |
≤90°C |
| Water Inlet Temperature |
≤70°C |
| Intercooler Inlet Water Temperature |
≤45°C |
| Noise Level |
123 dB |
| Starting Method |
Electric Starter |
| Lubrication Method |
Pressure and splash lubrication |
Alternator Specifications
| Specification |
Parameter |
| Alternator Model |
1FC5 |
| Efficiency at Power Factor 0.8 |
94% |
| Frequency |
50 Hz |
| Voltage |
400 V |
| Wiring |
Three-phase four-wire |
| Protection Class |
IP23 |
| Insulation Class |
F |
| Excitation Method |
Brushless |
| Speed |
1000 r/min |
| Net Weight |
8,300 kg |
Operating Environment
| Specification |
Parameter |
| Ambient Temperature |
-35°C to +35°C |
| Relative Humidity |
<90% at 20°C |
| Altitude |
≤1000 m |
Standard Conditions for Rated Output
| Specification |
Parameter |
| Atmospheric Pressure |
100 kPa |
| Ambient Temperature |
25°C |
| Relative Humidity |
30% |
Natural Gas Requirements
| Component / Parameter |
Requirement |
| CH₄ |
≥76.0% |
| C₂H₆ |
<10.0% |
| C₃H₈ |
<8.00% |
| C₄H₁₀ |
<6.00% |
| H₂S |
<0.10% |
| CO₂ |
<1.00% |
| Calorific Value |
>41,860 kJ/m³ |
| Gas Pressure |
80–150 kPa |
| Gas Temperature |
10–45°C |
| Gas Flow Rate |
Approximately 132 Nm³/h |
Fuel Gas Quality Requirements
The fuel gas must be processed by equipment capable of stabilizing gas pressure and gasification. Gas entering the generator must be free from water and oil.
-
Particle Size: ≤5 μm
-
Dust Content: <10 mg/m³
-
Gas Pressure: 80–150 kPa
-
Gas Temperature: 10–45°C