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From: John Larkin
Subject: Re: Why is the home voltage so high ?
Date: Thu, 03 Oct 2002 08:33:01 -0700
Organization: Posted via Supernews, http://www.supernews.com
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On Thu, 3 Oct 2002 14:25:28 GMT, Paul Hovnanian
>John Larkin wrote:
>> On Wed, 02 Oct 2002 18:21:16 GMT, "News2020" wrote:
>> >I measured the voltage at the power outlets at home and found it to be close
>> >to 140 V.
>> >This is way beyond the expected range (110-120) ?
>> This happened to me once. The power company came out and told me that
>> my Fluke was out of calibration, but they couldn't deny that the
>> lights were awfully bright. Turns out there was a bad connection on
>> the neutral lead out on the pole; it made one side of the line go up,
>> and the other go down. (This in the USA: 120-N-120)
>> Check your neutral-to-earth voltage; it should be a couple of volts
>> max. More, and you may have an open neutral somewhere.
>I had a similar problem. I made a voltage divider out of two 1%
>resistors, connected it across a 120/240V outlet and then connected
>my scope meter between the divider center tap and the breaker
>While a second meter across the 240V showed a rock solid 240V, the
>neutral voltage was swinging back and forth about 20V, depending
>on what 120V loads were switched on and off. I called the power
>company and was initially given the brush-off. They usually suggest
>that customers have an electrician check out their house wiring
>first. But after my explaination of my mesurements evidently
>went way over the clerk's head (and I explained that I used to
>be a power company engineer) they sent someone out.
>They installed a little autotransformer to my meter with a meter
>base adapter. This provies a solid 120V center tap for a neutral.
>A few days later, they came out and found a bad splice block in
>the underground system.
Funny, but the magical words to use on these people seem to be "I'm an
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