Re-commissioning campaign

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Presentation transcript:

Re-commissioning campaign P5 Warm Magnets re-commissioning and SCT Marco Zanetti

P5 WM Tests 1 Circuit (RD1.LR5), 6+6 magnets, PC on surface ElQA (Pierre T.): found anomalous low resistance (150 kW vs 4 MW expected) Water conductivity measured to be ok (P5L=0.1 mS/cm, P5R=0.5 mS/cm) Increased current to ground due to FMCM voltage dividers (see next slide) WIC-Magnets, WIC-PC (Pierre D.) successful PC tests (Hugues) Issue with 18kV cell (EMD213/5E) feeding the PC (the PC remained ON). Fixed on Wednesday morning Heat run ongoing, due to finish Friday morning

FMCM and ElQA (Markus/Hugues) Voltage taps at the beginning and at the end of the circuit are connected to a voltage divider feeding the FCMC Not an issue for the PC During ElQA of the circuits where the voltage taps are directly connected to the magnets, the taps have to be disconnected. 6 circuits of these kinds in the whole LHC: RD1.LR1, RD1.LR5, RBXWTV.L2, RBXWTV.R2, RMSD.LR6B1 and RMSD.LR6B2

Schedule w21 w22 w23 w24 w25 w26 w27 w28 w29 w30 P1 WM P2 TI2 P3 P4 w21 w22 w23 w24 w25 w26 w27 w28 w29 w30 P1 WM P2 TI2 P3 P4 SCT P5 P6 P7 P8

WM and Short Circuit Tests SCT for circuits in U43: WCC ready Heat run on Thursday 5 June (whole day) PIC: Bouchons on PC side for IPQ/D Need to discuss what to do for RB and RQD/F Safety: Balisage as for P6 (de)condamnation taken care by EPC and Gerard WM test in P4 (WIC and PC) from Monday to Wednesday week 22 TI2 WM tests in parallel with SCT in P4 filters installation ok?