... by perkins 9kva to 2000KVA Certificate:CE,ISO,SONCAP. Diesel Generator set power by Perkins engineFrequency50HZ60HZVoltage400V440VSpeed1500RPM1800RPMOutput range7KW/9KVA---1760KW/2200KVA8KW10KVA---1352KW ... -cooled2) Alternator: Brushless H class insulation, Self excitation, IP 23 protection, AVR regulator,THF < 5%,low radio interference.3) 3 phase ...