Solax Solar Inverter GRAND 320000W X3-GRD-320K-HV Three-phase High Voltage
Modelo: X3-GRD-320K-HV- Sku: SOLXINV054
- Vendor: Solax
Specifications
Product Description
The Solax GRAND 320000W X3-GRD-320K-HV Three-Phase High Voltage Solar Inverter is designed for C&I photovoltaic plants that require high power density, extremely high efficiency, and advanced O&M. With 6 MPP trackers, 30 string inputs, and optimized electronics for 1500 Vdc systems, this unit injects up to 320 kVA into 800 V grids with THDi <3 % and power factor control across the entire operating range.
Main Features
- 6 MPPT with 5 strings each (30 in total) and string-level measurement for precise O&M.
- Operating range 550–1500 Vdc; MPPT range 500–1500 Vdc; startup at 550 V; max Vdc 1500 V.
- Current per MPPT 75 A (Isc 115 A) suitable for high-current TOPCon/HJT modules.
- Three-phase output 800 V; apparent power 320 kVA; adjustable PF from 0.8 capacitive to 0.8 inductive; THDi <3 %.
- Max efficiency 99.03 % and European 98.80 %; transformerless topology.
- IP66, SPD Type II DC/AC (Type I+II option), optional AFCI, external Anti-PID, and AC terminal temperature detection.
Advantages or Benefits
- Higher effective production with 6 MPPT and 30 strings, reducing losses from shading and mismatch.
- Prepared for high-power, low cell voltage modules without current limitation.
- Safe and stable operation in 800 V industrial grids with reactive power control also in night mode (SVG 24 h).
- Intelligent O&M: I-V curve scanning, temperature alarms, and remote updates that minimize site visits.
- Open integration with SCADA and third-party platforms via Modbus RTU/TCP, SunSpec, or IEEE 2030.5; PLC option.
Purpose or Applications
Focused on large rooftops, carports, agrivoltaics, and modular ground-mounted plants seeking 320 kW per block with strict grid quality requirements, string-level monitoring, and OPEX reduction.
Technical Specifications
| AC apparent power | 320 kVA |
| AC voltage / connection | 3/PE, 800 V; 50/60 Hz (±5 Hz) |
| Max continuous AC current | 231 A |
| MPPT / Strings | 6 MPPT / 5 per MPPT (30 total) |
| MPPT range | 500–1500 Vdc (startup 550 V; max Vdc 1500 V) |
| Current per MPPT | 75 A (max Isc 115 A) |
| Efficiency | 99.03 % max; 98.80 % EU |
| Protections | IP66; SPD Type II DC/AC (Type I+II opt.); optional AFCI; anti-islanding; RCMU; external Anti-PID |
| Grid functions | SVG 24 h, power control, controlled DC injection |
| Communications | Modbus RTU/TCP, SunSpec, IEEE 2030.5; optional WiFi/LAN/4G/PLC |
| Dimensions / Weight | 1225×825.5×369.1 mm / 130 kg |
| Environment | −30 to 60 °C (derating >40–45 °C); altitude ≤5000 m (derating >4000 m) |
| Topology | Transformerless |
| Certifications | EN50549, VDE-AR-N-4110/4105, IEC 62116/61727, G99, CEI 0-16/0-21, RD1699, NRS097, etc. |
Compatibilities
Compatible with Solax Cloud for 24/7 monitoring, meter/CT for export control, and optional communication modules (WiFi, LAN, 4G, or PLC). Direct integration into SCADA via Modbus or SunSpec.
The Solax GRAND X3-GRD-320K-HV offers industrial power, 99.03 % efficiency, and intelligent O&M for large-scale photovoltaic plants.
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Solax Solar Inverter GRAND 320000W X3-GRD-320K-HV Three-phase High Voltage
