... /2" flywheel, front engine mountings, mechanical governor (1006TAG with GAC electronic governor, don't parallel connection),cold start aid ... : <3% ,10) Frequency at stable state: <0.5% ,11) Frequency deviation at instantaneous state: ≤+10% 12) Frequency return time: ... ≤3s 13) Voltage deviation at stable state: ≤+ -1% ,14) Voltage deviation at instantaneous state: ≤+20% ,15) Voltage return time: ...