Being officially distributed by XBSolar Joint Stock Company, the String Inverter product line features 12 independent MPPTs with a maximum efficiency of up to 99.0%. It is compatible with various types of solar panels (mono, poly, bifacial, and thin-film technology). With a range of superior features, it provides users with a comfortable experience, including communication and monitoring options that facilitate easy operation and maintenance through the Isolarcloud web platform or application.
- The solid aluminum alloy casing design, weighing only 95 kg, ensures sturdiness and makes installation work easy. All Sungrow solar inverter units are designed with separate boards for easy replacement and repair over the operational lifespan.
- The integrated software allows users to monitor smart current on each string, perform online IV curve scans and diagnoses on the current-voltage curve. With advanced system and diagnosis, it accurately locates abnormal PV positions. Remote data upgrade facilitates convenient operations and maintenance (O&M) work.
- Integrated with the Recovery PID function. So, how does PID affect the system? PID is a complex process with many influencing factors. The impact on the system is significant, affecting both individual solar panels and entire strings of panels. The system’s power output may decrease by up to 90% over time. The Recovery PID function can repair degraded PV panels, increasing productivity by up to 10%.
- The Sungrow 250kW grid-tie inverter is designed to be compatible with both copper and aluminum AC cables, offering flexibility in design and cost optimization for installation. It can connect two DC cables in 1, replacing the traditional DC cable connection method, saving costs for DC power cables.
- With intrusion protection rated at IP66 for the inverter, IP68 for the cooling fan, and C5 corrosion protection, the Sungrow 250kW grid-tie inverter has excellent resistance capabilities in various environments. It is suitable for a wide range of installations and harsh conditions, including coastal areas in Vietnam.
- Night-time Q function, LVRT (Low Voltage Ride Through) capability, HVRT (High Voltage Ride Through) capability, active power and reactive power control, and ramp rate control.
Grid safety:
The Sungrow 250kW grid-tied inverter integrates protective features such as DC reverse polarity protection, AC short circuit protection, ground fault protection, along with surge protection class II for DC and class II for AC. It complies with safety grid regulations and adheres to various standards including IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, VDE-AR-N 4110:2018, VDE-AR-N 4120:2018, IEC 61000-6-3, EN 50549, AS/NZS 4777.2:2015, CEI 0-21, VDE 0126-1-1/A1 VFR 2014, UTE C15-712-1:2013, DEWA.
Technical Specifications:
| CIRCUIT DIAGRAM | EFFICIENCY CURVE |
 |
 |
| Input (DC) |
SG250HX |
| Max. PV input voltage |
1.500 V |
| Min. PV input voltage / Startup input voltage |
500 V / 500 V |
| Nominal PV input voltage |
1160 V |
| MPP voltage range |
600 – 1.500 V |
| MPP voltage range for nominal power |
860 – 1.300V |
| No. of independent MPP inputs |
12 |
| Max. number of input connector per MPPT |
2 |
| Max. PV input current |
30 A * 12 |
| Max. DC short-circuit current |
50 A * 12 |
| Output (AC) |
|
| AC output power |
250kVA @ 30℃ / 225kVA @ 40℃ / 200kVA @50℃ |
| Max. AC output current |
180.5 A |
| Nominal AC voltage |
3 / PE, 800 V |
| AC voltage range |
680 – 880 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 % In |
| 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 / European efficiency |
99 % / 98,8% |
| Protection |
|
| DC reverse connection protection |
Yes |
| AC short circuit protection |
Yes |
| Leakage current protection |
Yes |
| Grid monitoring |
Yes |
| Ground fault monitoring |
Yes |
| DC switch / AC switch |
Yes/ No |
| PV String current monitoring |
Yes |
| Q at night function |
Yes |
| Anti-PID and PID recovery function |
Yes |
| Overvoltage protection |
DC Type II / AC Type II |
| General Data |
|
| Dimensions (W*H*D) |
1051 * 660 * 363 mm |
| Weight |
95 kg |
| Isolation method |
Transformerless |
| Ingress protection rating |
IP66 |
| Night power consumption |
≤ 2 W |
| Operating ambient temperature range |
-30 to 60℃ |
| Allowable relative humidity range (non-condensing) |
0 – 100 % |
| Cooling method |
Smart forced air cooling |
| Max. operating altitude |
5000 m (> 4000 m derating) |
| Display |
LED, Bluetooth+APP |
| Communication |
RS485 / PLC |
| DC connection type |
MC4-Evo2 (Max. 6 mm2, optional 10mm2 ) |
| AC connection type |
OT/DT terminal (Max. 300 mm2) |
| Compliance |
IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, VDE-AR-N 4110:2018, VDE-AR-N 4120:2018, EN 50549-1/2, UNE 206007-1:2013, P.O.12.3, UTE C15-712-1:2013 |
| Grid Support |
Q at night function, LVRT, HVRT,active & reactive power control and
power ramp rate control
|
| Supplier and Warranty Unit in Vietnam | XBSolar – Sungrow Service Center |
