... sine wave output, low THD, high efficiency 100kw Grid-tie Inverter for Wind Power SystemAdopt IGBT from Mitsubishi ... and surveillancePure sine wave output, automatic synchronization with the grid, thepower factory close to 1, low current harmonics, ... waterproof terminalMax. Efficiency94% Euro efficiency 92%Grid voltage range320~440VAC (3-phase)Grid frequency50HZ±2%, 60HZ±2%Total current waveform ...