I have 1500 kw load,i want install on Diesel Generator.What should be rating?
If its a pure resistive load consider the efficiency of the alternator, de-rating factors to ambient conditions etc. etc. After considering all of the above you need a 1650KVA (with 10% safety factor
Well, unless you're supplying a purely resistive load (nothing but filament lamps and radiant heaters -- no motors, transformers, switched-mode supplies or fluorescent lamps), you generally need a generator rated for about 1.2 to 1.5 times as many kVA as you have kilowatts. So in your case, a couple of megaVA.
