200 KW is about 268 Horsepower.

Assume losses of 50% (well it will be used on a farm …) so we need a bit over 500 HP from the Diesel motor. There's a man in Oregon with something vaguely suitable, perhaps:

NEW OEM Complete Audi Q7 CCGA V12 6.0L TDI Diesel Engine Long Block 500HP 08-04

So if your lad has 18,000 dollars to spare …

Regards, Tim

Hi

Perhaps I Have read this wrong.

What is the Tractor Horse Power? Then a diesel of similar power to drive the machine directly would be the way to go.

Eric

Try this calculator (http://www.dieselserviceandsupply.com/Power_Calculator.aspx). My understanding is that kW draw ought to be 0.6-0.8 of kVA produced by the generator but happy to be corrected.

I am guessing that this is the advert for the motor. I agree with JasonB that you would require a generator greater than 200 Kw to alow for the starting current even when using a star delta starter. Why not just buy a large diesel engine to power it directly and save the power conversion losses.

Les.

Guy Martin has a Merlin that needs a job to do

Neil

Why not just power it directly with the diesel engine? Friend of mine at a local farm needed more current , and powergrid came up with some ridiculous cost for upgrade, so he bought an ex hospital V8 diesel stand by generator, but this now runs an entire seed cleaning and processing plant. I cannot imagine a single machine that needs 268HP, what the devil is it?

Well you can get a John Deere with 600HP so there must be a need for them down on farm

Peter

A subsoiler. Not a big deal, every farm has one

Whatever way you slice it, to build a high HP machine such as is being discussed is likely not going to be cheap. Unless they are in a very remote area or have an enormous qty of crop to process, I'd recommend getting quotes from local milling firms for the grain crushing. Chances are they will have plant for it already and usually rates for custom milling (at least in North America) are far lower than machine build or buy rates with depreciation and amortization of costs. Compared to cost of equipment build/ownership milling services are very inexpensive.

Now your grandson would certainly learn a lot building such a machine, you can't put a price on that . (but Dad might think twice if it's him buying 500 HP diesels, generators, 3" shaft couplings, fuel systems, motors, cables, switchgear…….)

Just my $0.02 worth, your mileage may vary.

Does it matter what the use is. Original question was what size generator is required for a 200Kw motor. That would require a 300KVA genny to give a bit to play with.

Edited By JasonB on 18/09/2017 20:05:05