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Solenoid
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Solenoid logbook, Page 14 of 15
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New entries since:
Wed Dec 31 16:00:00 1969
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ID
Date
Author
Operational Mode
Subject
Text
26
Wed May 5 23:57:38 2004
Willy Andersson
Quench Recovery
Powerleads warming up again.
Got a page from Don Flemming at about 18:50
wondering why the power
lead temperatures were rising. See attachment
25
Wed May 5 12:13:51 2004
Doug Preddy
Normal Running
power leads cold
should be ready to run.
24
Wed May 5 09:59:10 2004
Doug Preddy
Quench Recovery
started flow to power leads
Started flow to power leads.
TIC121 into auto mode
23
Wed May 5 07:55:37 2004
Doug Preddy
Quench Recovery
Solenoid quenched on power lead temp
Solenoid quenched on power lead temp. I ran
down and managed to recover it
with minimal temp rise in the solenoid. Coil
22
Tue May 4 11:26:38 2004
Doug Preddy
Normal Running
power leads
Power cycled HIC 142 with solenoid power at
400 amps. Flows > 240mm and
temps have dropped.
21
Tue May 4 11:20:57 2004
Doug Preddy
Normal Running
power leads going unstable
power lead ripples increased over last couple
of days. They are quickly
dieing out now and the temps are startint
20
Fri Apr 30 01:53:34 2004
Doug Preddy
Quench Recovery
switched to parallel cold
19
Thu Apr 29 23:43:15 2004
Doug Preddy
Quench Recovery
Starting flow to solenoid
Solenoid quenched due to power leads at 9:00
tonight. Restarted flow in
parallel warm mode.
18
Wed Apr 28 09:30:09 2004
Doug Preddy
Normal Running
power leads again
Same story as yesterday. Ripples dieing out,
flows down to <200 mm, temps
increasing. Turned HIC 142 down to 0.4 then
17
Tue Apr 27 09:03:18 2004
Doug Preddy
Normal Running
Power leads
Power leads are being monitored with the strip
tool graphs. I saw the temps
go from having a ripple to almost no ripple,
16
Mon Apr 26 08:12:30 2004
Doug Preddy
Quench Recovery
Power leads flow
Throttled back the LHe in until the power
leads started to warm. My goal is
to flow "warm" gas (hopefully 80K) through
15
Mon Apr 26 07:48:46 2004
Doug Preddy
Quench Recovery
Series mode
Switching over to series mode.
14
Sun Apr 25 21:41:00 2004
Willy Andersson
Quench Recovery
Trip on PL Temp.
Got pager call at 16:20 this afternoon. Solenoid
had tripped on PL
temperature. Arrived at about 17:00. Did
13
Fri Apr 23 09:19:30 2004
Doug Preddy
Normal Running
CV211
PIC 229 was down to 10.8 bar this morning.
PIC 229 was trying to open CV211
to charge the system. I realized that in
12
Thu Apr 22 10:39:16 2004
Doug Preddy
Normal Running
Yesterday
Added two bottles of UHP helium to buffer
tank.
Had no liquifation rate, so optimized Ti121
11
Wed Apr 21 09:57:59 2004
Willy Andersson
Start Up
System status
Buffer tank pressure is down to about 6 psig.
Too low to keep up
with liquefaction requirements to build LHe
10
Wed Apr 21 08:16:18 2004
Doug Preddy
Start Up
switch to series mode
Switched to series mode.
9
Wed Apr 21 06:48:31 2004
Doug Preddy
Start Up
JT bypass closed
Closed cv155
8
Wed Apr 21 06:39:17 2004
Doug Preddy
Start Up
over night
Changed to parallel cold mode at 9:30.
At about 4:30 the city water chiller was
turned on. The air compressor had
7
Tue Apr 20 07:33:03 2004
Doug Preddy
Start Up
PIC229 at 11bar
PIC229 at 11 bar. Changed strip tool to 15
sec increments.
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