On 12/7/2014 7:38 PM, OK Don wrote:
What kind of fence (how high) do you electrify that keeps the deer out
of the corn? Around here they laugh as they jump over the fences. Do
you electrify the entire fence or just the top?
These are mule deer you have? I know they are bigger than our
On Mon, 08 Dec 2014 13:20:23 -0500 David Kristin Gilmore via Mercedes
mercedes@okiebenz.com wrote:
We use the low impedance type of charger that is supposed to be
tolerant of weeds. Neighbors have advised that one of the 50 mile (2
joule) sort is needed.
Fence chargers that put out much
Gentlemen, thank you for your responses! You are educating an old
farmer, which has to be a good thing.
No, the fuse does not blow when the mystery part is not
installed. It is in series with the the 110 volt hot line to the
transformer.
I tried connecting the line from
What kind of fence (how high) do you electrify that keeps the deer out of
the corn? Around here they laugh as they jump over the fences. Do you
electrify the entire fence or just the top?
On Sun, Dec 7, 2014 at 5:41 PM, David Kristin Gilmore via Mercedes
mercedes@okiebenz.com wrote:
My
Oh wise list members. Perhaps one of you can identify an
electronic component for me.
The fence charger has failed that protects my vegetable garden
from deer. The charger is a Parmak S.E.3 of the 110 volt type. I found
one of its two 1 amp fuses bad, as has happened over the
Looks like an MOV, or metal oxide varistor.
MOVs are a form of semiconductor device that act like a sponge, so to speak,
and prevent voltages above a certain threshold to be “clamped” or absorbed by
the MOV.
You might know them better a a “surge suppressor”. That’s all that is inside
those
On Sat, 06 Dec 2014 07:22:48 -0500 Dan Penoff via Mercedes
mercedes@okiebenz.com wrote:
Looks like an MOV, or metal oxide varistor.
I agree with Dan.
Can you read any information on the MOV itself?
He said, It is marked R270 and below that, CM 56.
If not, can you tell where it is in the
I found some DIY repair data on their chargers, and it appears they have MOVs
across the AC side of the transformer, which I believe is the one yours has
blown, as well as MOVs across the secondary outputs, too. This is pretty
typical “best practice” design for AC circuits.
Lightning strikes
If this in indeed a MOV it is not necessary for functionality.
(Only protection.) Before investing anything, see if the charger
still works without it.
-- Jim
___
http://www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
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Good point, Jim. An MOV can be left out of the circuit and things should still
be functional.
Dan
On Dec 6, 2014, at 3:08 PM, Jim Cathey via Mercedes mercedes@okiebenz.com
wrote:
If this in indeed a MOV it is not necessary for functionality.
(Only protection.) Before investing
David wrote:
Oh wise list members. Perhaps one of you can identify an
electronic component for me.
Everything looks good inside except, as shown in the
attached photograph, a small dull red pill apparently
overheated. It is in line from the recently blown fuse to a
David wrote:
Oh wise list members. Perhaps one of you can identify an
electronic component for me.
Everything looks good inside except, as shown in the
attached photograph, a small dull red pill apparently
overheated. It is in line from the recently blown fuse to a
Dan wrote:
Looks like an MOV, or metal oxide varistor.
MOVs are a form of semiconductor device that act like a sponge,
so to speak, and prevent voltages above a certain threshold to be
“clamped” or absorbed by the MOV.
Sorry Dan, I can't leave that one alone.
An MOV is better described
On Sat, 6 Dec 2014 18:30:04 -0600 fmiser via Mercedes
mercedes@okiebenz.com wrote:
Dan wrote:
Looks like an MOV, or metal oxide varistor.
MOVs are a form of semiconductor device that act like a sponge,
so to speak, and prevent voltages above a certain threshold to be
“clamped” or
Thus it doesn't absorb anything! It simply shorts the line to
prevent the voltage from getting high enough to cause damage.
... to cause damage _other than to itself_!
It does absorb energy, into itself. When they've had enough,
they explode. They almost always fail shorted, at voltages
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