1-1/2 HP per kilowatt continuous but there needs to be reserve for motor starting. For 2-10 seconds a single phase motor will draw 4 to 12 times it's nameplate rated current. So 2HP per KW is a good rule of thumb for a 25KW generator making 20KW-25KW. Running a 540 rpm generator with a 1000rpm tractor slowed to 54% of rated. Is not going to save a fortune or cut fuel consumption to 1/2. Running a 1900rpm tractor at 1026rpms will leave it at 73% of the rpm required for peak torque/peak efficiency. So as previous posted have stated. Good idea but it doesn't work and it costs plenty in repairs. Any decent pto generator has a 1800rpm rotor. The low end pto generators have a 3600rpm rotor. Make certain all windings are copper. You would be surprised to know how many generators are cheaper because the windings are made of aluminum. Next question. How are you tieing this standby generator to your hydro service?
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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