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Comprehensive Re-Commissioning Strategy for QPS Interconnection and Tests

alagan avatar
alagan
13 diapositives · 254 Views · Aug 23, 2014

This document outlines a structured approach to the re-commissioning of QPS circuits, detailing the progress from February to July. It includes important phases such as firmware updates, safety tests, and strategies for PCC and PIC2 assessments. Achievements regarding test targets and consolidation steps are highlighted, along with the successful completion of nominal current tests without issues. The report also discusses planned proposals for further improvements and additional tests required to validate the QPS loop functionality and interconnections.

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  1. S45: Where were we? Where are we going? Re-commissioning!

  2. Test and targets

  3. Achievements w.r.t. the targets

  4. Consolidation Interconnection Cryostats: Main Circuits Spool Pieces PIMs: only vacuum chambers Q5-D4-DFBM – short to ground corr. Q5 IPQ/D + correctors PO (FGC), CO (PIC), MEI (QPS) software updates From Feb. to July:

  5. General strategy • Re-do (I_min_op) • PCC • PIC2 tests (updates+safety) • IST QPS • Re-do (PLIs - PNO) • Case by case (circuit type)

  6. Done Interconnection cryostat opened QPS: Firmware update of main bus-bar protection system PIC additional test step introduced to test a FPA and discharge request also on the Odd side of the circuit to validate the proper opening of the QPS loop Re-commissioning proposal (same after Xmass): QPS IST PCC + PIC2 PLI1.a2/f5 (cycle @ inj.) – PLI2.f1 (Extraction @2kA) PNO Mains – RB/RQD/RQF

  7. Done: All at nominal current during first powering No issues experienced No manipulation of the circuits during the consolidation period. Re-commissioning proposal: QPS IST PCC PIC2 PNO.c4 (asymmetric ramp + leads check) IPQs arc:

  8. Done: All at nominal current during first powering No issues experienced Interconnection Q5-D4-DFBM opened. Re-commissioning proposal: QPS IST PCC PIC2 PNO.c4 (asymmetric ramp + lead check) Q5 and D4.R4: PLI2.f3 (Q5) e PLI2.f2 (D4) or directly to PNO? IPQ/Ds LSS

  9. Done: PCC performed in all 60/120A – considered OK A few interconnections opened during consolidation Re-commissioning proposal: 120A: PCC+PIC2 120A: PNO – 3 steps/circuits 60A: PCC 60A: PNO.a1 (lead R) in ~20 circuits 60A 60A: PNO.d1 (crowbar) for all – 1 step/circuit DOC circuits - arc

  10. Done: PCC+PIC2 performed in all 60/120A – OK Interconnections D4-Q5-DFBM opened during consolidation to fix sc in RCBYV5.R4B1 Re-commissioning proposal: Correctors of Q5.R4: all procedure PCC PIC2 PNO for the rest DOC lss:

  11. Done: PSC performed in all 600A – considered OK Interc. Cryost. Aperture: spools Re-commissioning proposal: Firmware update for all 600 A protection systems PCC (asked by PO) PIC2 600A EE: PLI1.b1 + PNO 600A CB: PNO Spool pieces (RCDs – RCSs): repeat PCS RCOs: to be totally comm. (parameters issue) 600A:

  12. Proposal re-commissioning S45 1 2 13 3 24 14 2 30 94 30% less + XL5 and PGC

  13. Planning XL5 MR4 A45 LL5 All new RQX 600A 120A IPQ IPD 120A 600A RB QD QF IP 600A 120A 60A IPQ IPD 120A 1 7 5 2 2 4 1 1 1 1 8 49 16 94 3 1 10 Cryo OK for 1.9K operation and 4.5K operation in the MS ELQA – TP4E ELQA_TP4E W. x ELQA – TP4E Connections ELQA – TP4E Connections QPS W.x+1 Connections Connections PIC2 + PLI + PNO PNO PNO QPS QPS QPS PNO PNO PNO PNO P N O P N O W. x+2 PNO PGC W.x+3 Front1 Front3 Front2 Front2