I did a fireworks display on November the 5th and we had various generators and bits of lighting to do.
This was priority on the first day of setting up.

Generator Kettle

Two 200kVA generators
One ten metre 125Amp three phase cable
One rubber distribution box
One Kettle

One 200kVA generator is capable of delivering 480Amps of juice and we used it to power a kettle for the day :D