Btw, add ko lang mga paps.. Yung mga direct coupled gensets na nasa evanelista, raon and maliliit dynamo, they run at 3600 rpm, kasi 2 pole ang generators nya, kaya maliit ang dynamo, so it means, highspeed and mas mabilis rin ang depreciation, and run it at full load or not, it will alway run at 3600 rpm as your 60 Hz frequency depends sa rpm mo.