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Re: Pole pig TAPS??
Hi Chris,
Original Poster: mel wise <mwise44-at-flash-dot-net>
I recently found a pig for sale. I emailed the guy about a certain
abbreviation that was in the ad (N.T.). The guy emailed me back and said
he thinks that the N.T. means no taps. So here's where the questions
come in. If this transformer doesn't have taps, how much do new taps
cost and where do you get them? If they cost alot then I will probably
forget buying it there.
Comments:
First of all let me tell you taps donīt cost anything. As a matter of fact you
canīt even buy them!!. No really, Taps just means the primary (LV side) has
parts of its winding coming out (being "tapped at these points). The reason is
very simple. It lets the linemen adjust the output (being in normal use: the
low voltage side). You need these in pole service to adjust for losses. A
building very near the power plant has no losses (so the lineman uses the
lowest tap, meaning least number of winding). On the other hand a building far
away will have a lower line (HV) voltage, so the lineman taps the highest
point (most number of windings).
I believe the taps are: -5% -2% 0% +2% +5% voltage.
If the pig is in good condition and cheap AND you feel comfy about using it:
GO AND GET IT. You wonīt need taps.
It doesnīt make a difference if your pig makes 14400 or 15120 volts.
coiler greets from germany (where sob and whimper there are no small pigs)
Reinhard