Beginner's Questions

Thanks to all helping us,

I learned a lot, mainly to be more precise when asking and talking.

The technical meaning of KVA was the only thing that was clear to us,
however we missunderstood the following:
  it sounded for us that you get more power out of the system
  than you put in (what would be a big conflict with the physics)

but now we hope to understand this:
  Are we right that you build a system in which you put some power in for a
  long time and get this power (without a loss factor) out in a
  very short time, generating the sparks at a very high power of some KVA?


  Frank & some more

P.s.: .de stands for deutschland=germany (somebody asked)