[Antennas] Ground rod questions (Ground currents)

[rbethman]

That is great on paper.  The reality is that at the main panel, ground 
and neutral are BOTH bonded in the panel.

The system in question was a wye distribution system.  So the ground 
plays a bigger part than folks realize since EACH phase IS terminated in 
ground.  This is a significant difference from a Delta system.

It was a 4160/2400 Wye in generation and distribution.  Ground plays a 
VERY important part.  The neutral is derived in a WYE system by tapping 
the center of the single phase 240VAC at the pole mounted transformer.  
Therefore the ground is WELL into the fray!

Bob - N0DGN

Loren Moline WA7SKT wrote:
> Bob,
>
> The imbalance and supply voltages should be dependent on the 
> connections to the power company for both the power legs and the 
> neutral for the neutral is carried with the 2 power conductors from 
> the utility.
>
> If there is a variance like that it tells me the neutral connection 
> back to the utility is faulty and you are depending on the ground to 
> carry the unbalanced current which if resistive would cause varying 
> voltage drops dependent on the current drawn by the load.
>
>  
> Loren   WA7SKT
>
>  
> Member: ARRL and Pacific Northwest VHF Society
> Member: Hearsat Satellite Monitoring Group
> Location: CN86cx 
>                                                                                        
>
>                           
>                                 
>
>
>
>
>
>
>
>
> > Date: Tue, 30 Jun 2009 12:24:46 -0400
> > From: rbethman at comcast.net
> > To: Antennas at mailman.qth.net
> > CC: ve5ra at sasktel.net
> > Subject: Re: [Antennas] Ground rod questions (Ground currents)
> >
> > My brain passed gas!
> >
> >
> > We had weird fluctuations whenever a load was put on one side, (120), of
> > the 240V drops to each building. The one load side with the coffee 
> pot, OR the side with the refrigerator that we traded for would kick 
> in, that leg would drop to 80 - 90 VAC, while the OTHER leg would go 
> WAY up to 160VAC or more.
> >
> > That's what I should have finished. It was all tied up in the lack 
> of GOOD conductivity. When the tide came up it would get well. When 
> the tide was out, those were the funny things we would observe with 
> metering we installed at OUR service entrance. (Scrounged from an old 
> abandoned power plant.)
> >
> > Bob - N0DGN
> >
> >
> >
> > Doug Renwick wrote:
> > > Bob, can you complete the paragraph:
> > >
> > > We had weird fluctuations whenever a load was put on one side, 
> (120), of
> > > the 240V drops to each building. The one load with ...
> > >
> > > Doug
> > >
> > >
> > >
> >
> > --
> > Bob - NØDGN
> >
> > ______________________________________________________________
> > Antennas mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/antennas
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Antennas at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html

-- 
Bob - NØDGN