[Esr-users] [New Logentry] Solenoid quenched
Walt Akers
akers at jlab.org
Sun Feb 17 08:51:06 EST 2019
I just spoke to Carroll Jones. Here is the information he provided.
At around 4:00 AM an LCW hose came loose in Hall C, and water
began dumping from the system onto the floor.
This caused the LCW system to have a sudden (and significant)
pressure drop - likely leading to the solenoid quench (based on the
briefing from Ruben last Tuesday).
Carroll Jones reported to the site and shutdown the LCW system
for repair. Walter Kellner (Hall C) began making repairs to the
disconnected hose.
Carroll Jones is currently purging the LCW lines in preparation to
restart the system. This may take several hours.
Walt
Ruben Fair wrote:
>
> Tyler and I are looking at this.
>
>
> Stepan's email just now stated a LCW issue onsite
>
>
> Ruben
>
>
>
> ------------------------------------------------------------------------
> *From:* Probir Ghoshal
> *Sent:* Sunday, February 17, 2019 8:01 AM
> *To:* Jonathan Creel
> *Cc:* Jixie Zhang; Ruben Fair; David Kashy; esr-users at jlab.org; Chris
> Perry; Joe Wilson
> *Subject:* Re: [Esr-users] [New Logentry] Solenoid quenched
> Not sure will see Ruben might have recd a call,..
>
> Regards,
> Probir
>
> On Feb 17, 2019, at 7:19 AM, Jonathan Creel <creel at jlab.org
> <mailto:creel at jlab.org>> wrote:
>
>> Any indications why it quenched?
>>
>> Jonathan Creel
>>
>> On Feb 17, 2019, at 5:20 AM, "jixie at jlab.org <mailto:jixie at jlab.org>"
>> <jixie at jlab.org <mailto:jixie at jlab.org>> wrote:
>>
>>>
>>> Solenoid quenched <https://logbooks.jlab.org/entry/3654880>
>>>
>>> * Edit
>>> <https://logbooks.jlab.org/entry/3654880/edit?destination=email/send>
>>> * Delete
>>> <https://logbooks.jlab.org/entry/3654880/delete?destination=email/send>
>>>
>>> Lognumber 3654880 <https://logbooks.jlab.org/entry/3654880>.
>>> Submitted by jixie <https://logbooks.jlab.org/user/jixie> on Sun,
>>> 02/17/2019 - 05:16
>>> <https://logbooks.jlab.org/entries?start_date=1550394996&end_date=1550402196&book=HBLOG&book=HBSOLENOID&book=HBTORUS>.
>>>
>>>
>>> Logbooks: HBLOG <https://logbooks.jlab.org/book/hblog> HBSOLENOID
>>> <https://logbooks.jlab.org/book/hbsolenoid> HBTORUS
>>> <https://logbooks.jlab.org/book/hbtorus>
>>> Tags: Hall B <https://logbooks.jlab.org/tag/hall-b>
>>> Entry Makers: jixie, osoto
>>>
>>> Solenoided quenched at about 04:14.
>>> The LHe reservoir is empty. temperture rise up.
>>>
>>> _______________________________________________
>>> Esr-users mailing list
>>> Esr-users at jlab.org <mailto:Esr-users at jlab.org>
>>> https://mailman.jlab.org/mailman/listinfo/esr-users
>
>
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