Twerd PS300-WT wind inverter (3 kW, 3-phase, on-grid)

The three-phase 3 kW Twerd PS300-WT on-grid wind inverter is designed for micro-installations with permanent magnet synchronous generators. The device provides fully autonomous operation and power transmission to the electrical grid with a maximum efficiency of 97%.

The 3 kW Twerd PS300-WT inverter is a transformerless device dedicated to small wind and hydro power plants. It works with permanent magnet synchronous generators in on-grid systems. The inverter allows the input of a 16-point generator input current characteristic as a function of frequency to optimize the load. Additionally, the device enables direct load control via a communication protocol.

Key features

• Cooperation with permanent magnet synchronous generators.
• Built-in internal relays controlling the operation of braking resistors (30 A, AC1).
• Protection against generator runaway and anti-islanding protection.
• Communication via Ethernet and RS-485 interfaces with MODBUS protocol support.
• IP65 enclosure protection rating.

Technical data

Nominal AC output power	3 kW
Output voltage (grid side)	3 x 400 V, 50 Hz
WT input operating voltage range	3 x 60..425 V AC
Maximum WT input current	13 A
Rated output current	4.5 A
Maximum efficiency	97%
Ambient temperature range	-10°C..+40°C
Weight	33 kg
Dimensions (H x W x D)	490 x 426 x 214 mm