[Antennas] Ground rod questions (Ground currents)
rbethman
rbethman at comcast.net
Tue Jun 30 11:31:37 EDT 2009
Phil and Gang,
In my last series of grounding and ground systems, I touched on water
table issues.
I ran across this in Enewetak, an Atoll in the South Pacific. Our
outfit sent a bit over a dozen of us to install and operate a 2MW power
plant to provide the juice for about 2000 troops and the water
desalination plant.
We had weird fluctuations whenever a load was put on one side, (120), of
the 240V drops to each building. The one load with
The similarities are striking. Phil, your system does well when it is
well wetted. Ours was being on a coral outcropping sticking up out of
salt water.
Here is MY take. Your trailer village is located on soil with pathetic
conductivity. (Just like crushed coral). Your power supplier is MOST
likely depending on the butt grounds for each pole. The single ground
for each service does NOT get adequate conductivity in that soil.
So when you put in a GREAT ground, wet it on a regular basis, YOU have
become THE ground for the entire village.
Hence all the noise and the voltage plus current readings you are seeing.
Unfortunately you can't cure the whole village. You "might" raise heck
with the power supplier, show them what you have found and try to prod
them to improve the entire village power system.
We ended up running an extra conductor on the whole power system, and it
got right!
Bob - N0DGN
--
Bob - NØDGN
More information about the Antennas
mailing list