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General DescriptionsSG500KTL is using low-frequency isolation transformer for protective purpose. 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 large scale PV power plant.Technical Features • Power reduction (100%, 60%, 30%, 0%) meet German EEG requirements • Reactive Power Control with power factor from 0.9 lagging to 0.9 leading • Transformerless design efficiency at 98.7% • Easy Installation and maintanence • Precise output power metering • Multilingual touch screen monitoring and control interface • Auxiliary heater (optional) • Max. working altitude at 6000m (operation with derating above 3000m) • High quality German Rittal enclosure • Low voltage ride through • KEMA DK5940, CE certification, CGC certificationCommunications: • RS485/Ethernet/GPRS interfaces • Computer monitoring softwareSafety·Full protection functions: over-voltage protection, short-circuit protection, islanding protection, over-heat protection·Over-load protection·DC ground-fault protection·Standards complied: EN61000-6-2, EN61000-6-4, EN50178, RD1663/ 2000
Technical Specifications
| MODEL | SG500KTL |
| DC SIDE DATA | |
| Max. DC Voltage | 900Vdc |
| Start Voltage | 470V |
| MPP Voltage Range | 450~820Vdc |
| Min. DC Voltage | 450V |
| Max. DC Power | 550kWp |
| Max. Input Current | 1200A |
| AC SIDE DATA | |
| Rated Output Power | 500kW |
| Max. AC Output Current | 1176A |
| Rated Grid Voltage | 315Vac |
| Grid Voltage Range | 250~362Vac |
| Rated Grid Frequency | 50Hz/60Hz |
| Grid Frequency Range | 47~51.5Hz/57~61.5Hz |
| Output Current THD | <3% (at nominal power) |
| DC Current Injection | <0.5% of rated inverter output current |
| Power Factor | 0.9(lagging)~0.9(leading) |
| SYSTEM | |
| Max. Efficiency | 98.7% |
| Euro. Efficiency | 98.5% |
| Protection Degree | IP20 (indoor) |
| Power Consumption at Night | <100W |
| Operating Temperature | -25~+55°C |
| Cooling Method | controlled forced-air cooling |
| Relative Humidity | 0~95%, non-condensing |
| Max. Working Altitude | 6000m (operation with derating above 3000m) |
| Display AND COMMUNICATIONS | |
| Display | touch screen LCD |
| Standard Comm. Interfaces | RS485 |
| Optional Comm. Interfaces | Ethernet/GPRS |
| MECHANICAL DATA | |
| Dimensions(WxHxD) | 2800x2180x850mm |
| Net Weight | 2288kg |
PV grid-connected inverter_SG500KTL