403946 SzGeCERN 20230531161916.0 oai:cds.cern.ch:403946 cerncds:FULLTEXT cerncds:CERN:FULLTEXT cerncds:CERN SLAC 4247426 SPIRES 4247426 Inspire 509972 CERN-LHC-99-005-ECR eng Barbeau, H New Long-term Historical Data Recording and Failure Analysis System for the CERN Cryoplants 1999 Geneva CERN 18 Oct 1999 8 p paper Report CERN uses several liquid helium cryoplants (total of 21) for cooling large variety of superconducting devices namely: accelerating cavities, magnets for accelerators and particle detectors. The cryoplants are remotely operated from several control rooms using industrial standard supervision systems, which allows the instant display of all plant data and the trends, over several days, for the most important signals. The monitoring of the cryoplant performance during transient conditions and normal operation over several months asks for a long-term recording of all plant parameters. An historical data recording system has been developed, which collects data from all cryoplants, stores them in a centralized database over a period of one year and allows an user-friendly graphical visualization. In particular, a novel tool was developed for debugging causes of plant failures by comparing selected reference data with the simultaneous evolution of all plant data. The paper describes the new system, already in operation with 11 cryoplants. CERN EDS 991019SLAC CLAS1 LHC-ECR SzGeCERN Accelerators and Storage Rings CERN PREPRINT CERN LHC Barth, K Baud, R Dauvergne, J P Delikaris, D LHC CERN Depot 4, bldg. 500-S-023 (DE4) CERN-LHC-99-005-ECR http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=lhc-99-005 Access to fulltext document http://cds.cern.ch/record/403946/files/lhc-99-005.pdf Access to fulltext document http://cds.cern.ch/record/403946/files/lhc-99-005.ps.gz Access to fulltext document evelyne.delucinge@cern.ch CERN Inst. Univ. Technol. Belfort n 199942 11 20100729 1034 CER01 19991018 403969 sydney990919 PUBLIC 0001 000330645CER PREPRINT ConferencePaper