[Hallb-engineering] [New Logentry] Follow-up Re: Torus MPS Faults

Brian Eng beng at jlab.org
Thu Sep 28 14:52:48 EDT 2017

I suspect there's still more in there; Probir and I left the Hall after the damaged component was located since it requires DC Power to do work in the supply and no attempt was made to really clean it out at the time. The supply should probably be given a once over once their work is done.

I'm not sure what the best procedure to clean it out would be. Vacuum? Compressed air? A combination of the two?

Another question is the braided copper jumpers themselves: there's definitely some fraying/knicks in at least one of them, but they're pretty minor/small from what I could see from the side I was on.

Assuming DC Power isn't actively working in the supply I'll go take some pictures so people will have a better idea what we're talking about.

> On Sep 28, 2017, at 2:38 PM, Ruben Fair <rfair at jlab.org> wrote:
> Brian - have you got the debris?
> If it truly is off of the copper braids, that is not good
> Ruben
> On Sep 28, 2017, at 2:00 PM, beng at jlab.org wrote:
>> Follow-up Re: Torus MPS Faults
>> Lognumber 3486195. Submitted by beng on Thu, 09/28/2017 - 13:55. 
>> Logbooks:	HBTORUS
>> Entry Makers:	sandoval
>> References:	3486179 - Torus MPS Faults
>> 3485739 - Torus Hi-Pot Test
>> Regarding the debris in the supply (while not conductive to a handheld DMM) Nick pointed to an entry during a hi-pot test were it actually caused a short.
>> This is the exact same location (top left bolt) that Probir found the debris today.

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