[Hallb-engineering] [New Logentry] Solenoid "Training Quench" and Recovery

[Hugh Montgomery]

Dave,

Where do I read the current at which the dump occurred?

Mont

 

From: kashy at jlab.org [mailto:kashy at jlab.org] 
Sent: Friday, September 15, 2017 11:25 AM
To: hallb-engineering at jlab.org; stuart at jlab.org; mont at jlab.org; ent at jlab.org; rossi at jlab.org; gomez at jlab.org; rfair at jlab.org; hogan at jlab.org; gyoung at jlab.org
Subject: [New Logentry] Solenoid "Training Quench" and Recovery

 


Solenoid  <https://logbooks.jlab.org/entry/3484541> "Training Quench" and Recovery 


Lognumber 3484541 <https://logbooks.jlab.org/entry/3484541> . Submitted by kashy <https://logbooks.jlab.org/user/kashy>  on Fri, 09/15/2017 - 11:23. 


Logbooks: 

HBSOLENOID <https://logbooks.jlab.org/book/hbsolenoid>  CLOG <https://logbooks.jlab.org/book/clog> 

We started ramping at 08:30 and at 9:08 the magnet fast dumped. Cryogenic recovery took about 1hr and 50 minutes so total was 2.5 hrs start ramp to ready again
We are ramping again.

We implemented a manual version of a pressure venting system that is designed to keep from blowing relief valve RV8670 which does not reseat w/o shutting off the helium. This should keep the time to recover lower and allow no intervention recovery as we just did.
This also reduces peak load and pressure on warm return and thus have less impact on other magnet lead flows.
At 11:05 we started ramp #2 for today







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