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General Descriptions:SG250KU is specially-designed for the North America market. Its wider input voltage range ensures more combinations of the PV arrays. Moreover, optical fiber isolation technology has been adopted to increase its anti-interference ability under the circumstances of multiple inverters installation. In addition, optimized circuit and structural design has improved system thermal efficiency which enhancing system reliability and stability. Reinforced protection functions, including the DC ground fault protection, make it the best product for the large-scale PV power station in North American market.Technical Features: Max. efficiency at 97.0% MPPT efficiency >99.9% Using advanced IGBT modules Full protective functions Easy installation and maintanence by modular design Precise output power metering Mul t i l i ngua l LCD display & mul t i p l e communication inter faces available Auxiliary heating device available (optional) Working altitude at 6000m ETL certified according to U.S standard UL1741 and IEEE1547; Canada standard C22.2 107.1-01 (pending)Communications: RS485/Ethernet/GPRS interfaces Computer monitoring softwareSafety:·Full protection functions: over-voltage protection, short-circuit protection, islanding protection, over-heat protection DC ground-fault protection·Over-load protection·Standards complied: ETL certified according to U.S standard UL1741 and IEEE1547; Canada standard C22.2 107.1-01 (pending)
Technical Specifications
| MODEL | SG250KU |
| DC SIDE DATA | |
| Max. DC Voltage | 600Vdc |
| MPPT Voltage Range | 300~600Vdc |
| Max. DC Power | 260kWp |
| Max. Input Current | 800A |
| Max. Number of String | 8 |
| AC SIDE DATA | |
| Rated Output Power | 250kW |
| Rated Grid Voltage | 480Vac |
| Grid Voltage Range | 420~530Vac |
| Rated Grid Frequency | 60Hz |
| Grid Frequency Range | 59.5~60.5Hz |
| Grid Current THD | < 5% |
| Power Factor | ≥0.99at nominal power |
| SYSTEM | |
| Max. Efficiency | 97.0%with transformer |
| CEC Weighted Efficiency | 96.4%with transformer |
| Protection Degree | TYPE 1indoor [ IP20 ] |
| Self Consumption at Night | <30W |
| Operating Temperature | -13~+131°F [-25~55] |
| Cooling Method | controlled forced-air cooling |
| Relative Humidity | 0~95%, non-condensing |
| Max. Working Altitude | 6000m |
| DISPLAY AND COMMUNICATIONS | |
| Display | touch screen LCD |
| Standard Comm. Interfaces | RS485 |
| Optional Comm. Interfaces | Ethernet/GPRS |
| MECHANICAL DATA | |
| DimensionsWxHxD | 94.5x85.8x33.5 inch [1020x1964x770mm] |
| Net Weight | 3740 lbs [900kg] |
PV Grid-tied inverter -- SG250KU