Description

Product Description

• Fully integrated containerised MV PV inverter station suitable for utility-scale solar plants and industrial grid-connected systems.

• Three-level inverter technology with advanced control provides high efficiency and stable performance up to full rated power.

• Supports high-voltage DC input (up to 1500 V) from PV arrays with multiple MPP trackers for optimal power harvesting.

• Includes an integrated MV transformer stepping up low-voltage AC from the inverter to 22 kV for grid interconnection.

• Modular design with integrated switchgear and auxiliary LV power supply simplifies installation and reduces plant footprint.

• Complies with international standards and provides active/reactive power control, low/high voltage ride-through, and other grid support functions.

Technical Specifications

Power & Conversion

• Rated power output: approximately 3.2 MVA (3200 kVA).

• DC input system voltage: compatible with 1500 Vdc PV systems.

• Max PV input voltage: 1500 V.

• MPP voltage range: ~875–1500 V.

• Number of MPPTs and DC inputs configurable depending on model variants.

• AC output voltage: nominal 22 kV.

• Nominal grid frequency: 50 Hz with 45–55 Hz range (60 Hz variants supported with 55–65 Hz).

• Power factor: > 0.99 nominal, adjustable 0.8 leading to 0.8 lagging.

Efficiency & Performance

• Maximum inverter efficiency: up to ~99 %.

• European efficiency: ~98.7 – 98.8 %.

• Total harmonic distortion (THD): < 3 % at nominal power.

Transformer & Grid Interface

• MV transformer: integrated with station; typical vector Dy11.

• Transformer rated power matches inverter rated MVA (~3.2 MVA).

• Cooling type: ONAN (oil-natural, air-natural).

Protection & Grid Support

• DC input protection: load break switch and fuses.

• AC MV protection: circuit breakers on AC output.

• Surge protection: DC Type I/II and AC Type II.

• Grid monitoring and ground fault/insulation monitoring included.

• Grid support functions: low/high voltage ride-through (L/HVRT), active/reactive power control, ramp-rate control.

Physical & Environmental

• Standard containerised dimensions: ~6058 × 2896 × 2438 mm (20-foot).

• Approximate weight: ~17 – 18 tonnes.

• Protection degree: inverter IP65 (optional), others IP54.

• Ambient operating temperature: −35 °C to +60 °C (with derating above ~45 °C).

• Humidity: 0 % – 100 % non-condensing.

• Cooling: temperature-controlled forced air.

• Max operating altitude: ~1000 m standard, optional upgrades for higher altitude.

Communications & Monitoring

• Standard interfaces: RS485 and Ethernet.

• Display/Local HMI and remote monitoring supported.

Standards & Compliance

• Compliance with IEC 62109, IEC 61727, IEC 62116, IEC 62271-202, IEC 62271-200, IEC 60076, and regional grid codes.