Difference between revisions of "June 20, 2013 Solenoid Meeting"
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# Implement fast dump wire connections from refrigerator - Jonathan/Elliot | # Implement fast dump wire connections from refrigerator - Jonathan/Elliot | ||
# Calculate what temperature is needed to run at 1500A and 1360A with 0.9K margin. [[Media:Quench Margins.pdf]] | # Calculate what temperature is needed to run at 1500A and 1360A with 0.9K margin. [[Media:Quench Margins.pdf]] | ||
| + | * What Current do we map the magnet at? | ||
| + | * Is it worth spending all this effort on the QD if it will be changing for production? | ||
== Useful Info == | == Useful Info == | ||
Revision as of 08:29, 20 June 2013
Thursday June 6,2013 at 11am At Jefferson Lab, the meeting will be held in room CC F326
Attendees
C. Rode, T. Whitlatch, E. Wolin, B. Flora (via phone for short duration..sorry), E. Chudakov, J. Creel, G. Young, P. Ghoshal
Agenda
- Discuss last weeks minutes https://halldweb1.jlab.org/wiki/index.php/June_11,_2013_Solenoid_Meeting
- Status of Action Items
- Complete 140A procedure (Rev C) - George (this is in review now with some small changes needed)Media:140A before changes for PLC.pdf
- Review 140A procedure and comment - all
- Update hardware QD with dial pot and PLC with inductance algorithm - Elliot Media:Proposed PLC QD Changes.pdf
- Clean up refrigerator and get ready for cooldown - Jonathan
- Determine if turn to turn short could have caused quench in coil 1A - Eugene
- Write up quench analysis, dump resistor and max current rationale for review - George Media:Narrative.pdf
- Review previous low current ramp for voltage spikes and perform additional low rate ramping if necessary - Giles
- Write up high current portion of procedure (Rev D) - George
- Balance Power supply for 25H (if necessary based on item 7)- Giles
- Implement fast dump wire connections from refrigerator - Jonathan/Elliot
- Calculate what temperature is needed to run at 1500A and 1360A with 0.9K margin. Media:Quench Margins.pdf
- What Current do we map the magnet at?
- Is it worth spending all this effort on the QD if it will be changing for production?
Useful Info
- Documents available at M:\halld_engineering\Solenoid\Commissioning\Response to Quench
Meeting Minutes
New Action Items
Path Forward
- Complete the 140A procedure including the quench balance and turn to turn short check not completed in the 15A test (to be completed and signed off by June 21)
- Continue repair of refrigerator (to be completed by June 25)
- Write preliminary analysis of quench and rationale for dump resistor and max current (June 17)
- Review of preliminary write up by Bill Schneider and Bob Flora (June 21)
- Fill magnet with liquid (to be completed by July 10)
- Complete and sign off maximum current plan and quench analysis(Same OSP- New procedure or New OSP?)(to be completed by June 27)
- Perform 140A testing ( to be completed by July 17)
- Perform High current commissioning ( to be completed by July 18)
- Map magnet (to be completed by July 24)
