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picture1_Cryo Faillure 13august2011


 36x       Filetype PPTX       File size 2.96 MB       Source: lhc-commissioning.web.cern.ch


File: Cryo Faillure 13august2011
hydrodynamic cold compressors for 1 8 k ref 125 g s ghe from 15 mbar with 4 stages cryo failure on cold compressor unit cold crompressor unit the ccu is ...

icon picture PPTX Filetype Power Point PPTX | Posted on 12 Sep 2022 | 4 years ago
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...Hydrodynamic cold compressors for k ref g s ghe from mbar with stages cryo failure on compressor unit crompressor the ccu is composed of four which by pumping helium bath allow to cool magnets down problem occurred cc several hypothesis single event driving electronics historic am in nominal conditions stable beam magnetic bearing controller has lost this feedback position value plc sees a difference between send stop order during shaft center moved crg oa next morning access request needed tries restart but each time it stops hz afternoon recalibration around pm at speed hours same decision change controlling since then where do we stand estimated recovery...

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