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Electrical requirements of DFX components: specification and tests

Electrical requirements of DFX components: specification and tests. A. Ballarino. DFX Detailed Design Review, CERN, 20/06/2019. E lectrical components in DFX- Electrical Insulation. Electrical c omponents : Nb-Ti bus-bar from SC Link Nb-Ti bus-bar from the -plate

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Electrical requirements of DFX components: specification and tests

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  1. Electrical requirements of DFX components: specification and tests A. Ballarino DFX Detailed Design Review, CERN, 20/06/2019

  2. Electrical components in DFX- Electrical Insulation Electricalcomponents: Nb-Ti bus-bar from SC Link Nb-Ti bus-bar from the -plate Instrumentation signals (see next presentation) Instrumentation connectors System includes electrical splices (Nb-Ti to Nb-Ti done in the tunnel) Validated by MCF EDMS 1821907 DFX RT  Room Temperature NOC  He gas @ RT, 1 bar A. Ballarino

  3. Electrical components in DFX Electrical Transients EDMS 1821907 DFX - Nb-Ti superconducting cables AC losses will be measured at Univ. of Twente on short (few meters long) cables with final design (contract being placed). - Full system validation, including Nb-Ti cables, with prototype system test in the SM-18 (Oct 2020) A. Ballarino

  4. Protection https://indico.cern.ch/event/643197/timetable/#20170703 Nb-Ti Nb-Ti MgB2 Splice Splice Nb-Ti bus-bar EDMS 1951502 Monitoring of splices Protection of bus-bar International Review Cold Powering, July 2017 EDMS 1951503 Cu stabilizer in Nb-Ti bus-bar limiting Tmax to < 100 K during transients Redundancy of all signals A. Ballarino

  5. Instrumentation connectors • Definition of connectors being discussed within MCF as part of a global strategy for HL-LHC For the DFX: • Large amount of signals to be extracted from the DFX • Each connector grouping voltage taps from the same circuit • Insulation of pins to ground according to table in slide 1 • Insulation between pins < 500 V in NOC A. Ballarino

  6. Thanks for your attention ! A. Ballarino

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