TWERD PS300-WT 5kW Inverter, on-grid, 3-F (5000W ON GRID Turbine)

TWERD PS300-WT 5kW Inverter (on-grid, 3-phase)
The three-phase PS300 inverter is designed to work with wind turbines equipped with a synchronous generator with permanent magnets. The on-grid model allows synchronization and feeding power into the 3×400 V grid and controlling the generator load (braking resistors) to prevent turbine runaway.

Manufacturer Information
The device is produced by TWERD Sp. z o.o. (TWERD) – a company engaged in the design, production, and service of converters for renewable energy sources. The manufacturer provides technical documentation and service for installers and users.

Electrical and Technical Parameters

• Rated AC Power: 5 kW
• WT Input (AC) – generator operating range: 3×60…425 VAC, rated generator voltage 3×400 VAC
• Maximum input current from the generator (IGEN-MAX): 13 A (5 kW version)
• Output voltage (grid): 3×400 V, 50 Hz
• Rated output current (IOUT): 7.5 A
• Maximum efficiency: 97 %
• THD of output current: < 3 %
• Switching frequency (carrier): 16 kHz
• Internal relays controlling braking resistors: capacity 30 A AC1 (3–10 kW versions)
• Power consumption in standby mode: 20 W

Mechanical and Installation Parameters

• Dimensions (width × height × depth): 426 mm × 490 mm × 214 mm (data from Fig. 3.1 for on-grid inverters 3–10 kW)
• Weight (with mounting frame): 33 kg
• Protection class: IP65
• Mounting position: vertical, with connections facing down (max. tilt ±15°)
• Cooling / installation clearances: maintain a minimum of 20 cm from the top and bottom and 10 cm from the sides; use ventilation in enclosed housings