... hours warranty Cummins engine series diesel gensetWe are a ... 50Hz / 60Hz, 0.8Pf , three phase four wires Use: can be used ... Output range 20kw----800kw Noise level Below 65/75db at 7m ... deviation at instantaneous state ≤+10% Frequency return time ≤3s ... currents interruption· Insulation Class: H Protection class: H· Frequency at stable state ... , 3 filter, electric systems b) Alternator c) Steel structure ...