Re: How to guesstimate the voltage used in power lines?

Apr 06, 2004 3 Replies


> at:
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) I believe at one time this


>~25-35kV

Thanks for the replies.



I just remembered something. An area near there was upgraded with a rather high voltage running down the streets. 35kV if I remember the newspaper article correctly. (the poles and transformers do have unusually large insulators). Later I noticed that this distribution network was fed _directly_ from another set of ancient-looking metal towers (different design) that appear to use the same insulators as the ones I asked about, except for a rectangular box (not a transformer) in series. Looked like a capacitor bank (does it make any sense to have capacitors in series with a distribution system?) These towers may run from the same substation as the ones I asked about.


Rectangular box is series is likely a recloser.

Charles Perry P.E.

Oh, thanks. That makes much more sense.

So, take tour DVM up there, and measure the voltage. You might need a dropping resistor though.

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