... 3Compression Ratio14.9:1Frequency Regulation,Stead StateMechanical Speed governing ratio 5%,Electronic Speed governing ratio 1%Exhaust Gas Temperature(°C ... Cummins:About Alternator: Alternator ModelSLG454CPrime Power1240KW/1550KVAPower Efficiency95.5%Characters4 Pole,Rotating Field,Brushless,Self excited,H ... provide the free easy-damaged spare part for problems caused by our quality of production or raw ...