Our company's building has a branch curcuit (split single phase(120
across each "hot and the nuetral bus and 240 across each "hot") that
is on the output of a voltage regulator (I believe it is a
ferroresonnant type).  The main nuetral input to the regulator does
not have any amperage on it ( I'm using an amp clamp).  At the branch
service panel , the one "hot" has 30+ amps, the other "hot" has
2amps(although, all the breakers have current in fact one has 20 amps
, and the nutral has 40+ amps of current.  Several of the nuetrals off
the bus have current on them, adding to the 40+.  There is definately
current on the nuetrals (large spark when unhooked).  I believe the
load is balanced between the two "hots".  My question is why is there
current on the nuetral? Is this normal for the output of a voltage
regulator?  Is it wired wrong?  Thanks.