| Generator Model | GJY250-NG | |
| Gas Source | Natural Gas | |
| Standby kVA | 350 | |
| Prime kVA | 312.5 | |
| Standby kW | 280 | |
| Prime kW | 250 | |
| RPM | (r/min) | 1500 |
| Voltage Options | V | 400 |
| Frequency | 50 | |
| Power Factor | 0.8 | |
| Electrical Efficiency | % | ≥38 |
| Thermal Efficiency | % | ≥54.1 |
| Total Efficiency | % | ≥92.1 |
| Gas Consumption | m³/h | 72.3 |
| Heat balance parameters | ||
| Cylinder liner cooling water heat (±8%) | kW | 192 |
| Oil cooler cooling water heat (±8%) | kW | 44 |
| High temperature cooling system total cooling water heat (±8%) | kW | 236 |
| Intercooler cooling water heat (±8%) | kW | 45 |
| Low temperature cooling system total cooling water heat (±8%) | kW | 45 |
| Exhaust gas waste heat (exhaust gas temperature up to 120°C) (±8%) | kW | 136 |
| Total radiant heat (±8%) | kW | 25 |
| Cooling parameters | ||
| High temperature circulation water flow rate | m³/h | 9.2 |
| High temperature circulation water inlet temperature (±2%) | °C | 78.9 |
| High temperature circulation water outlet temperature (±2%) | °C | 85 |
| Low temperature inlet water temperature (±2%) | °C | 50 |
| Low temperature outlet water temperature (±2%) | °C | 52 |
| Intake and exhaust parameters | ||
| Air intake | kg/h | 1,243 |
| Gas intake | kg/h | 51 |
| Air displacement | kg/h | 1,294 |
| Exhaust temperature after turbocharger (±5%) | °C | 490 |
| Test Conditions | ||
| Calorific value of gas | kWh/m | 9.1 |
| Methane volume content | % | ≥96 |
| Gas temperature | °C | -10~40°C |
| Gas Inlet Pressure (Before Regulator) | kPa | 800～1000 |
| Gas Inlet Pressure (After Regulator) | kPa | 400～600 |
| Air intake negative pressure | kPa | >-3 |
| Exhaust back pressure | kPa | <5 |
| Absolute atmospheric pressure | kPa | 101.32 |
| Ambient temperature | °C | 25 |
| Relative humidity | % | 30 |
| Altitude | m | ≤1,000 |
