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Published byKelton Shackelton Modified over 9 years ago
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NC: DFBXD – Lead HTS #2 too cold PersonHowWhenObservationsStatus Cartridge x 2 Philippe Denis (Ph.D) Changed (confirmation and details by Ph.D) 20 and 27 Mai 09 ? ? Thermal switch Philippe DenisChanged (confirmation and details by Ph.D) 20 and 27 Mai 09 Location of the integrated TC by the Cartridge different temperatures measured on the cu block and by the TC ? Regulator Philippe DenisBy inversing lead #1 and #2 cartridges20 and 27 Mai 09 If cartridges used w/o copper block then fast oscillation for both lead #1 and #2 tested. ? TT891 C.DMonitoringJuly 08 and Mai 09 If CV891 forced close then TT891 warm-upOK TT893 C.DMonitoring – Not a control parameterJuly 08 and Mai 09 Ok at RT. Compared with ambiantOK CV891 P2 Control room Laurent Sevrin / Jean-Paul Closing CV891 Compared lead #1 and 2 behaviors 27 Mai 09If CV891 closed then TT891 warms- up No leak observed. OK Electronics of CV891 A. P.Test on going to define PID regulator parameters for 7.5 kA leads ?Regulate in narrow range (0<2% opening)? Insulating vacuum for HTS A. B. ?Pump and keys available by Pascal Chambouvet ?? Cartridge / Copper Block A. B. ?Change copper block ??If local regulation at 80C on EH893, then cu block still cold to the touch ? Copper Block / Current lead A.B. ??tbd?
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Condensation DFBXD – Amenee HTS #2 La temperature du bloc reste froide au touche (~ 10 C). La mesure exacte sera realisee by 10/06/09 La lecture du controleur est de 50 C. (Valeur augmentee a 75 puis 80 C)
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DFBXD – Amenee HTS # 2 Tests realises le 8 Juin 2009 EH893 consigne augmentee de 50 C a 75 C EH893 consigne augmentee de 75 C a 80 C CV891 lachee en regulation SP : TT891=50 K CV891 – SP: TT891=70K
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DFBXD – Amenee HTS # 2 Tests realises le 27 Mai 2009 EH893 consigne augmentee de 50 C a 75 C EH893 consigne augmentee de 75 C a 80 C CV891 lachee en regulation SP : TT891=50 K CV891 – SP: TT891=70K
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