the construction and use of MOVs. It's still relevant today.
http://pml.nist.gov/spd-anthology/files/GEMOV_saga.pdf I have or
had one of those first edition manual;s listed as a collector's
item. Hope it didn't get thrown out,
73
Roger (K8RI)
On 8/27/2015 8:31 PM, john@kk9a.com wrote:
MOVs degrade with each lightning event and will eventually fail.
Typically
they fail shorted. I have had many PolyPhaser rotator protectors
fail or
start to leak. Often the MOV damage is visible when you open the
cover. It
is certainly easy to disconnect the device to test the rotator
and MOVs.
The MOVs inside the Array Solutions NEMA enclosure are easy to
replace.
John KK9A
To: TowerTalk@contesting.com
Subject: [TowerTalk] Array Solutions AS 8 SP
From: Joe Feustle <jafeustle@outlook.com>
Date: Thu, 27 Aug 2015 17:00:15 -0400
Does anyone on the list have any experience with this rotor
control line
device going bad? I'm working my way through a process of
elimination to
find out why my TailTwister no longer indicates direction nor
will turn my
beam. I've replaced the auto-start capacitor (no change) and
hooked my box
up to a known, working rotor. That works just fine: releases the
break and
turns the rotor. The surge protector is the next item in the line of
inquiry.
Thought I'd post this before disconnecting all the wires from the
SP and
reconnecting them in their proper order of color coding.
TIA and 73
Joe Feustle, N8JF
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73
Roger (K8RI)
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