[Elecraft] KPA500 Faulting on high SWR on power rise

[Bill Johnson]

1000v to me could be too low for a 500W amp.  You can for the time being leave the plug out, just disconnect when you are not using your equipment.  I use a remote disconnect to remove the antennas at my remote grounding panel.

73,
Bill
K9YEQ

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Chris Hallinan
Sent: Saturday, February 24, 2018 10:51 AM
To: donwilh at embarqmail.com
Cc: Wes Stewart <wes_n7ws at triconet.org>; <elecraft at mailman.qth.net> <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] KPA500 Faulting on high SWR on power rise

Not sure.  I pulled the plug out and Googled the numbers on it.  The plug is labeled CG2 1000, which I think means it is a 1000V breakdown voltage.
It appears to be a Littlefuse device, according to Allied Electronics which has the leaded version of the part for $2 ;)

Without knowing for sure, 1000V seems plenty for a 500W amp into approximately 50 ohms load.  Note I have the surge protector on the low SWR side of the tuner which is mounted under an eve of the house.  Probably not ideal but that's another issue ;)

Chris



On Sat, Feb 24, 2018 at 11:06 AM, Don Wilhelm <donwilh at embarqmail.com>
wrote:

> Chris,
>
> What is the possibility that you have an HP suppressor body and a 200 
> watt Arc-Plug?
>
> 73,
> Don W3FPR
>
>
> On 2/24/2018 10:32 AM, Chris Hallinan wrote:
>
>> Hi Wes. Appreciate the feedback.  I'm certainly not impressed by 
>> having one marked HP that is clearly not.  See my earlier post: the 
>> surge protector was my problem all along.  It's arcing at about 300W.
>>
>>


--
Life is like Linux - it never stands still.
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