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ID Date Author Operational Mode Subject Text   112   Thu Nov 3 06:19:50 2005 Doug Preddy Quench Recovery restart system Last night at about 7:00 there was a large power bump that shut the  compressor and water pump off. I came in      113   Thu Nov 3 09:27:16 2005 Doug Preddy Quench Recovery started flow to solenoid started flow to solenoid in parallel cold return.      114   Tue Nov 15 07:25:10 2005 Doug Preddy Normal Running power supply problem Saturday November 12 the solenoid power supply ramped itself down to zero.  It would not ramp up unless the ramp rate      115   Mon Dec 12 09:24:29 2005 Doug Preddy Quench Recovery Solenoid Quench on power lead temp The solenoid tripped on power lead temps at about 9:15. I am recovering it  from it's all around mode into parallel cold      116   Thu Dec 22 15:10:44 2005 Doug Preddy Shut Down shut down system shuttting down the system. isolated cold box by closing v135. preparing to  pump out cold box.      117   Tue May 23 08:44:28 2006 Doug Preddy Start Up Started turbines Solenoid and cold box were pumped out last Tuesday. Cold box roughing pump  initially would not start. had to retighten      118   Thu May 25 07:34:18 2006 Doug Preddy Start Up switched to parallel cold return switched to parallel cold return      119   Fri May 26 07:29:54 2006 Doug Preddy Start Up CV155 closed CV155 closed. Temps about 15K      120   Fri May 26 08:45:38 2006 Doug Preddy Start Up Changed to series mode Changed to series mode. Liquid level building.      121   Fri May 26 10:03:03 2006 Doug Preddy Start Up Started flow to power leads Started flow to power leads. Liquid level 15%      122   Fri May 26 14:34:24 2006 Doug Preddy Start Up Ready to run Solenoid is cold, liquid level is 35%, power leads cold and seem stable. Added one bottle helium to buffer tank. Pressure      123   Tue May 30 14:36:41 2006 Doug Preddy Normal Running power leads warming power leads warming. closed HIC 142, then re-opened. temps falling      124   Tue Jun 13 10:54:27 2006 Doug Preddy Quench Recovery Compressor tripped off No indicator lights etc as to why the compressor tripped. The only  light  was a cold box fault. I had to shut off the      129   Fri Jun 16 08:12:04 2006 Doug Preddy Normal Running LI108 indicates high on EPICS screen LI108 indicates high on EPICS screen (150%)  Controller shows ~64%      130   Fri Jun 30 11:13:00 2006 Doug Preddy Normal Running E-log is back up and running I would have made an entry when it died, but-----      131   Fri Jun 30 11:17:57 2006 Doug Preddy Normal Running Solenoid recovered Tuesday night. June 27, 2006, the solenoid quenched for no apparent  reason. It was restarted Wednesday morning.      132   Mon Jul 3 23:01:34 2006 Doug Preddy Quench Recovery power lead warming/ripples caused quench power lead warming/ripples caused quench at 18:45 today. Compressor stayed  on, but flow to solenoid stopped.      133   Thu Jul 6 15:00:15 2006 Doug Preddy Normal Running test        134   Thu Jul 6 15:04:17 2006 Doug Preddy Normal Running test test      135   Thu Jul 20 00:25:16 2006 Doug Preddy Quench Recovery Solenoid quenched @ 11:15 Solenoid Quenched on C1 temp. It went above 5K. Shut off compressor.  Restarting system @ 12:15

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