I help build/wire up large illuminated carnival/parade floats, and in the past we have used around 11,000 40w/60w GLS BC light bulbs in festoon sockets, powered by a 800KVA 3 phase diesel generator. However, these are becoming more and more difficult to buy, and so we have started to use energy saving compact fluorescent lamps.
The float uses normally around 80% of the capacity of the generator. My question is, as I start to replace more and more of the old incandesant bulbs with compact fluorescent lamps, what considerations do I need to apply when calculating the load that I'm putting on the generator? I'm concerned that as the load is becoming more inductive and less resistive. I've read that at some point power factor correction will be needed, but I'm not sure how to calculate this, and how to apply this on this scale.
For example, before I would have had:
4000 x 60w = 240kW 7000 x 40w = 280kW
but now I have:
3000 x 60w = 180kW 6000 x 40w = 240kW 2000 x 11w = 22kW (11w energy saver bulbs)
All this runs ok, the generator isn't overloaded, everything runs smoothly, the phases are near perfectly balanced, and nothing gets warm!
As I increase the ratio of inductive to resistive load, what will happen? How do I calculate how much inductive load the generator can take?
UPDATE: I found some information about a Synchronous Condenser on Wikipedia, which appears to do what I need by just connecting an unloaded motor to the supply, but it lacks details about how to do the calculations. Can anyone help with that?