Powered by Cummins, Lovol, Man, Deutz, Volvo, Doosan and Mitsubishi and China-made engine. Stamford, Marathon, Ennga and China-made alternator 3-phase AC brushless *Power: 15kva-1600kva *Connect type: 3-phase and 4-wire *Frequency: 50hz *Voltage: 230/400v (adjustable) *Voltage control: avr *Power factor: 0.8 (lagging) *Excitation mode: brushless self-excitation *Insulation class: h/h *Protection grade: ip21-23.