Pole pig questions

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" <beans45601-at-themail-dot-com>

If a pole pig is rated for 14.4kv 5kva, what does this mean? I know the kv 
means kilo volt, but what does the kva mean? Is this like amps? Also, how 
would you go about using a variac to limit the amount of power that goes 
in. Also, how do you go about using an arc welder as a current limiter? 
What are the pros and cons of using heater elements or lots and lots of 
wire as a current limiter? Do the power companies sell pole pigs? How would 
you go about getting one from a power company?
Thanks
Adam
__________________________________________________________________