Centralized Inverter
High Yield
| • | Efficient three-level topology, max. efficiency up to 99 %, European efficiency 98.7 % |
| • | Full power operation without derating at 50 ℃ |
| • | Long-time overload at 1.1 Pn |
| • | DC/AC ratio up to 1.5 |
Easy O&M
| • | Integrated zone current monitoring function for fast trouble shooting |
| • | Modular design easy for maintenance |
| • | IP65 protection |
Saved Investment
| • | Can be connected to double-winding transformer, saving transformer costs |
| • | Integrated SVG function |
Grid Support
| • | Compliance with standards: CE, IEC 62109, IEC 61727, IEC 62116 |
| • | Low/High voltage ride through (L/HVRT) |
| • | Active & reactive power control and power ramp rate control |
Technical Data
| Input (DC) | SG1250UD | SG1500UD |
| Max. PV input voltage | 1100 V | |
| Min. PV input voltage / Startup input voltage | 520 V / 540 V | 580 V / 600 V |
| MPP voltage range for nominal power | 520 – 850 V | 580 – 850 V |
| No. of independent MPP inputs | 2 | |
| No. of DC inputs | 16 | |
| Max. PV input current | 2712 A | 2896 A |
| Max. DC short-circuit current | 3200 A | |
| Output (AC) | ||
| Nominal AC power | 1386 kVA @ 45 ˚C / 1260 kVA @ 50 ˚C | 1650 kVA @ 45 ˚C / 1500 kVA @ 50 ˚C |
| Max. AC output current | 2222 A | 2381 A |
| Nominal AC voltage | 360 V | 400 V |
| AC voltage range | 288 – 414 V | 320 – 460 V |
| Nominal grid frequency / Grid frequency range | 50 Hz / 45 – 55 Hz, 60 Hz / 55 – 65 Hz | |
| THD | < 3 % (at nominal power) | |
| DC current injection | < 0.5 % of nominal output current | |
| Power factor at nominal power / Adjustable power factor | > 0.99 / 0.8 leading – 0.8 lagging | |
| Feed-in phases / Connection phases | 3 / 3 | |
| Efficiency | ||
| Max. efficiency / Euro. efficiency | 99.0 % / 98.7 % | |
| Protection | ||
| DC input protection | Circuit breaker | |
| AC output protection | Circuit breaker | |
| Overvoltage protection | DC Type II / AC Type II | |
| Grid monitoring / Ground fault monitoring | Yes / Yes | |
| Insulation monitoring | Yes | |
| Overheat protection | Yes | |
| Night SVG function | Optional | |
| Anti-PID function | Optional | |
| General Data | ||
| Dimensions (W*H*D) | 2150*2120*850 mm | |
| Weight | 1900 kg | |
| Isolation method | Transformerless | |
| Degree of protection | IP65 | |
| Auxilury power supply | 220 Vac, 2 kVA | |
| Night power consumption | < 40 W | |
| Operating ambient temperature range | -35 to 60 ℃ (> 50 ℃ derating) | |
| Allowable relative humidity range (non-condensing) | 0 – 95 % | |
| Cooling method | Temperature controlled forced air cooling | |
| Max. operating altitude | 4500 m (> 3000 m derating) | |
| Display | Touch screen | |
| Communication | RS485, Ethernet | |
| Compliance | IEC62109-1, IEC62109-2, IEC61727, IEC62116 | |
| Grid support | SVG(optional), LVRT, HVRT, active & reactive power control and power ramp rate control | |
| Type designation | SG1250UD-10 | SG1500UD-10 |