... :1 or 3.55:1 ratio -1.38"splined shaft PTO Tractor generator is an energy-generating system designed for the ... a power cutGearbox:-large capacity is 120kw,3phase,50HZ-540rpm ,PTO input,1.38" splined shaft-wired ready to go with ... -Self-excited,self-regulated-with AVR-Meeting leading quality standard PTO Tractor generator