Mon Oct 31 07:48:57 2005, Willy Andersson, Quench Recovery, what a fine entry
|
Keep IT safe boys |
Wed May 16 10:02:35 2007, Doug Preddy, Maintenance, warming up power leads
|
Power lead temps have been slowly increasing over the last wekk. I ramped
the solenoid down and am warming the power leads to >80k. |
Thu Oct 7 13:33:20 2004, Doug Preddy, Start Up, turned off purifier
|
turned off purifier |
Wed Nov 24 14:58:42 2004, Doug Preddy, Quench Recovery, today
|
Came in this morning to find the helium return line to the buffer tank
frosted up. MV51 has been stuck open the whole time. That exlains the
cooldown rate and other problem. Cycled MV51 a few times and it now seems
|
Wed Jun 1 23:48:02 2005, Doug Preddy, Quench Recovery, the first quench
|
I recieved a call from ops at 22:00 tonight that the solenoid had alarmed.
I came in and found a cold box fault, with the compressor tripped off. I
was unable to restart the compressor. I cleared the cryostat quench and
|
Thu Jul 6 15:00:15 2006, Doug Preddy, Normal Running, test
|
|
Thu Jul 6 15:04:17 2006, Doug Preddy, Normal Running, test
|
test |
Wed Jul 4 11:13:12 2007, Doug Preddy, Quench Recovery, test
|
This is a test to make sure the e-mail works. |
Thu Jun 9 08:56:10 2005, Doug Preddy, Quench Recovery, system back on
|
The compressor was restarted and the solenoid is cooling (sort of) in
parallel cold return. |
Thu May 13 14:37:13 2010, Doug Preddy, Quench Recovery, switching to series mode.
|
|
Thu Apr 17 13:52:25 2008, Doug Preddy, Start Up, switched to series mode at 9:30 this morning
|
switched to series mode at 9:30 this morning. Added two bottles of helium gas.
Started flow to power leads. |
Thu Oct 21 15:41:29 2004, Doug Preddy, Start Up, switched to series mode
|
|
Sat Jul 29 05:30:28 2006, Doug Preddy, Quench Recovery, switched to series mode
|
Temps bottomed out at ~16K. Switching to series mode. |
Thu Oct 26 08:18:10 2006, Doug Preddy, Quench Recovery, switched to series mode
|
Switched to series mode at about 7:45. |
Tue Oct 9 13:16:44 2007, Doug Preddy, Quench Recovery, switched to series mode
|
|
Fri Nov 9 07:37:44 2007, Doug Preddy, Quench Recovery, switched to series mode
|
switched to series mode. |
Mon Nov 19 04:30:47 2007, Doug Preddy, Quench Recovery, switched to series mode
|
|
Tue Nov 23 15:10:06 2004, Doug Preddy, Quench Recovery, switched to parallel cold return mode
|
|
Thu Oct 21 07:16:35 2004, Doug Preddy, Start Up, switched to parallel cold return
|
|
Tue Jun 14 23:01:22 2005, Doug Preddy, Quench Recovery, switched to parallel cold return
|
|
Thu May 25 07:34:18 2006, Doug Preddy, Start Up, switched to parallel cold return
|
switched to parallel cold return |
Tue Aug 15 15:39:27 2006, Willy Andersson, Quench Recovery, switched to parallel cold return
|
Return flow temps from solenoid about 40K, TIC121 at about 40K so switching
to //cold return.
Starting with slightly reduced flow through cold returns, CV145 and CV147
|
Thu Oct 5 10:26:26 2006, Doug Preddy, Start Up, switched to parallel cold return
|
|
Thu May 31 07:11:05 2007, Doug Preddy, Quench Recovery, switched to parallel cold return
|
switched to parallel cold return earlier this morning. Vacuum is 5 x 10-5. |
Wed Sep 26 08:52:46 2007, Doug Preddy, Start Up, switched to parallel cold return
|
|
Wed Apr 16 16:51:16 2008, Doug Preddy, Start Up, switched to parallel cold return
|
|
Fri Apr 9 07:34:55 2010, Doug Preddy, Quench Recovery, switched to parallel cold return
|
Switched to parallel cold return at about 7:30 this morning
|
Thu Nov 11 15:46:40 2010, Doug Preddy, Other, switched to parallel cold return
|
At 14:45. |
Fri Apr 30 01:53:34 2004, Doug Preddy, Quench Recovery, switched to parallel cold
|
|
Thu Jul 29 09:01:11 2004, Doug Preddy, Quench Recovery, switched to parallel cold
|
Changed to series mode. |
Wed Apr 21 08:16:18 2004, Doug Preddy, Start Up, switch to series mode
|
Switched to series mode. |
Wed Jul 28 07:00:18 2004, Doug Preddy, Quench Recovery, switch to series mode
|
Switching to series mode. Jumper on vacuum gauge removed. |
Wed Oct 6 09:25:54 2004, Doug Preddy, Start Up, switch to series mode
|
switched to series mode |
Tue Jul 19 16:13:32 2005, Willy Andersson, Quench Recovery, switch to series mode
|
CR_6KS_M down to 11 K.
Switched to series mode.
Started small flow to power leads to get them cold.
|
Fri Jul 21 14:08:04 2006, Doug Preddy, Quench Recovery, switch to series mode
|
Coils temps <10K.Switching to series mode. |
Tue Oct 31 05:36:14 2006, Doug Preddy, Quench Recovery, switch to series mode
|
|
Wed Nov 15 13:56:00 2006, Doug Preddy, Quench Recovery, switch to series mode
|
|
Sun Aug 24 06:45:14 2008, Doug Preddy, Quench Recovery, switch to series mode
|
|
Wed May 27 13:37:22 2009, Doug Preddy, Quench Recovery, switch to series mode
|
Switched to series mode at ~11:00. Built liquid to 55% by 13:30. Started flow to the power leads. |
Thu Aug 17 19:45:27 2006, Willy Andersson, Quench Recovery, switch to series cooling
|
Temps of flow returning from solenoid flat lined at about 10K.
Gradually closed CV155.
Then switched to series cooling. |
Fri Jul 10 01:10:59 2009, Doug Preddy, Quench Recovery, switch to parallel warm return
|
|
Thu Jun 2 01:38:25 2005, Doug Preddy, Quench Recovery, strip tool plot
|
This is a strip tool plot of the cooldown |
Thu Nov 25 07:21:37 2004, Doug Preddy, Quench Recovery, started power lead flow
|
Curtis switched to series mode last night at 7:00.
Startedflow to power leads at 7:00 this morning. |
Wed Jul 28 00:04:30 2004, Doug Preddy, Quench Recovery, started flow to solenoid
|
Solenoid temps were: C1 & C12 about 30K. C6 &C7 about 11K. Started flow to
solenoid in parallel cold return. Jumpered out the vacuum gauge for the
solenoid vacuum. |
Tue Nov 23 09:30:15 2004, Doug Preddy, Quench Recovery, started flow to solenoid
|
Started flow to solenoid in parallel warm return. |
Thu Jun 2 01:26:30 2005, Doug Preddy, Quench Recovery, started flow to solenoid
|
See attached file for a screen grab of temps. |
Thu Nov 3 09:27:16 2005, Doug Preddy, Quench Recovery, started flow to solenoid
|
started flow to solenoid in parallel cold return. |
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 |
Fri Oct 22 09:15:06 2004, Doug Preddy, Start Up, started flow to power leads
|
Started flow to power leads HIC142 at 0.8. |
Thu Apr 1 11:57:55 2010, Doug Preddy, Start Up, started flow to power leads
|
Solenoid cold. Buffer tank pressure ~3psi, so Kevin will add a bottle of helium. Started flow to power leads at 11:45 |
Mon Jun 7 09:24:47 2010, Doug Preddy, Quench Recovery, started flow to power leads
|
|
Fri Sep 26 09:50:18 2008, Doug Preddy, Quench Recovery, started flow in parallel cold return mode
|
|
Fri Sep 14 12:44:52 2007, Doug Preddy, Start Up, started compressor
|
running purifier over weekend |
Thu Nov 8 09:28:53 2007, Doug Preddy, Quench Recovery, started compressor
|
And started flow to coldbox,solenoid in parallel warm return.
|
Thu Jul 20 13:21:57 2006, Willy Andersson, Quench Recovery, started // warm return flow.
|
TIC121 was down to 27K
warm return valves were wide open
opened supply valves CV143 and CV146.
|
Wed Jun 1 08:23:19 2005, Doug Preddy, Start Up, start up notes
|
The solenoid was pumped out Monday and yesterday after the quads just
downstream of the solenoid were put back in place. The quad just
downstream of the solenoid was remove to replace two coils on it.
|
Thu Jul 29 13:25:29 2004, Doug Preddy, Quench Recovery, start flow to power leads
|
|
Fri Jul 10 00:34:03 2009, Doug Preddy, Quench Recovery, solewnoid quench due to power bump
|
Solenoid quench due to power bump caused by an airplane crash in Richmond at ~ 22:00. Compressor off. Water pump off. Restarted compressor at ~ 11:30.
Cooling solenoid in parallel cold return mode by 12:15. |
Thu May 13 07:39:55 2010, Doug Preddy, Quench Recovery, solenoid quench last night
|
Solenoid quenched on power lead temps last evening. I am recovering it in parallel cold return mode. C12~60K C1~50K. |
Thu Aug 10 20:26:09 2006, Willy Andersson, Quench Recovery, solenoid energized
|
Powerleads seem stable. |
Wed Jul 28 23:07:01 2004, Doug Preddy, Quench Recovery, solenoid cooling
|
cooling rates for the solenoid are good. In parallel cold return. |
Wed Dec 10 15:41:04 2008, Doug Preddy, Shut Down, shuttting down solenoid
|
shuttting down solenoid for winter shutdown. |
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. |
Fri Mar 11 09:18:30 2005, Doug Preddy, Maintenance, services on system
|
The cold box was isolated and pumped out after it warmed up. It has been
refilled with helium.
Turbine 2 speed indicator failed at some time during the last run. After
|
Fri Nov 23 08:41:45 2007, Doug Preddy, Normal Running, screen grab of powerlead temps
|
|
Wed Nov 5 16:33:52 2008, Doug Preddy, Normal Running, sbplc light out
|
On main menu the sbplc light was black. All vacuum systems looked good, but there was no control of any device. Jane reset the IOC. It is hosted by sundance. |
Sat Oct 16 17:13:19 2004, Other, , s
|
s |
Wed Oct 20 09:38:17 2004, Doug Preddy, Start Up, restarting system
|
Solenoid tripped off Monday morning due to high compressor pressure.
Regenerated purifier on Tuesday. Started compressor at 9:00 this morning. |
Tue Aug 15 08:45:56 2006, Doug Preddy, Quench Recovery, restarted the compressor
|
Solenoid tripped off Sunday. Restarted compressor and cool down of cold box. |
Tue Jun 14 20:53:19 2005, Doug Preddy, Quench Recovery, restarted refrigerator after power bump
|
see bitmap for temps/pressures after presurrizing coldbox. Preparing to
start flow to turbines, then will start flow to solenoid in parallel warm
return. |
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 this morning and am restarting the
system. |
Fri Apr 20 12:15:12 2007, Doug Preddy, Start Up, remote PLC switch
|
I could not control the vacuum devices using EPICS. The buttons could be
pushed, but nothing would respond. The PLC was in local mode. Thumbwheel
to 100, push On/Open button to put it into remote mode. |
Wed Sep 12 12:01:02 2007, Doug Preddy, Maintenance, regenerated adsorber
|
regenerated adsorber
replaced MV902 "ON" switch (used nitrogen precooling on switch) |
Wed Apr 16 15:15:44 2008, Doug Preddy, Start Up, refrigerator started
|
Turned on compressor last Tuesday. Ran purifier until today. Final value 0.15ppm.
Started cool down yesterday. Switched into parallel cold return this
morning, but PIC 229 would not allow the compressor to charge. The compressor tripped due to bad solenoid vacuum (solenoid was warming up). The controller
now seems to be working okay.
Restarted in parallel warm mode at ~12:00 |
Thu Jun 14 00:10:10 2007, Doug Preddy, Quench Recovery, recovering from earlier quench
|
Solenoid quenched on power lead temperature last night at about 6:00. I
restarted flow to the solenoid in parallel cold return. Switched to series
mode and am building liquid. |
Tue Nov 28 10:32:04 2006, Doug Preddy, Quench Recovery, recovering after looong power outage
|
The power has been out for about 24 hours. Recovering coldbox, solenoid and
beamline vacuum.PLC is down for the vacuum system. Started compressor and
am flowing warm helium through the soleniod to warm it up while the vacuum
|
Thu Sep 4 10:02:55 2008, Doug Preddy, Normal Running, ramping down solenoid
|
Solenoid power supply will be turned off for Fall shutdown. |
Sat Jul 28 15:45:17 2007, Doug Preddy, Quench Recovery, quench recovery
|
The solenoid tripped off this morning due to pwer lead over temp. The
compressor was also off. I restarted this morning at about 8:15 in
parallel cold return. Switching to series mode at 3:40. |
Sat Jul 28 22:30:13 2007, Doug Preddy, Quench Recovery, quench again
|
recovered system and energized solenoid at about 6:00 this evening.
At 9:30 power lead temps quenched solenoid again. MV52 stuck open during
start-up. |
Mon Apr 30 09:30:26 2007, Doug Preddy, Normal Running, problems over weekend
|
The PLC Limit switch power supply was tripped off on Saturday. I came in
and reset it and restarted all the vacuum systems that had tripped off.
The power leads were found to be warming up. This morning they were at ~
|
Thu Apr 19 15:18:25 2007, Doug Preddy, Start Up, preparing to start the refrigerator
|
Starting the vacuum systems in the coldbox and solenoid. |
Wed Nov 15 17:05:49 2006, Willy Andersson, Quench Recovery, powerleads cold, energizing solenoid
|
Powerlead temperatures have bottomed out, energizing solenoid to 300
amps, ramp rate 60. |
Fri Sep 3 01:28:43 2004, Doug Preddy, Quench Recovery, power up
|
started flow to the power leads at 11:30. Cold and stable at 1:00am.
Energized solenoid at 1:30. |
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 was set to 30 minutes. At this
setting the power supply ramped up to the required current. It seems to
|
Tue Oct 26 09:45:24 2004, Doug Preddy, Normal Running, power leads warming
|
Flow to power leads dropped to <80 mm. Cycled HIC142. Temps dropping, flows
>250. |
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 |
Mon Apr 28 09:03:22 2008, Doug Preddy, Normal Running, power leads warmed during weekend
|
The power lead temperatures suddenly rose on Sunday morning. No rippling occured before the woarm up.
I shut flow off this morning for about 10 minutes
(until the LHe in went up to 30K) and then open the flow back up. The temperature seem to be recovering. |
Sat Oct 9 22:50:26 2004, Other, , power leads warmed
|
At 10:30 PM Saturday, Donald Arseneau sees power leads at
25K, having gone up for the previous 10 hours. (I didn't
see it earlier because striptool wasn't scrolling). Cycled
|
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 to increase. PL flow is down to
<180mm. I will power cycle HIC 142. |
Sat Jul 29 09:38:06 2006, Doug Preddy, Quench Recovery, power leads cooled
|
opened power lead flow about 40 minutes ago. ~12K will let them stablize.
LHE level >20% |
Wed May 5 12:13:51 2004, Doug Preddy, Normal Running, power leads cold
|
should be ready to run. |
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 back up to 0.75. Temps dropped
quickly. Then turned HIC 142 to 0 and back to 0.75. Temps dropping, flow >
|
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. |
Sun Oct 10 17:36:35 2004, Experimentor, Start Up, power leads
|
At 5:30 pm sundat, power lead temp is about 10.6K. script tool still
notworking
|
Sat Jul 26 01:29:21 2008, Doug Preddy, Quench Recovery, power leads
|
ops will monitor liquid level. When it's at 60% they will come down and open the power lead valve. When the temperature ripples die out the solenoid can
be energized. |
Wed May 27 15:01:34 2009, Doug Preddy, Quench Recovery, power leads
|
Power leads are cold. There is still a small ripple. The power supply can be ramped up as soon as the ripples die out. |
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.
I started flow to solenoid at 22:40. |
Tue Nov 27 21:02:08 2007, Doug Preddy, Normal Running, power lead ripples
|
power leads were oscillating tonight. John K. came down and cycled CV142.
(Thanks John!) Temps settling out. |
Wed Aug 25 12:52:53 2004, Doug Preddy, Normal Running, power lead ripple
|
Lhe ripple has started. 10.9-11.4K PL-Pos also has a smaller ripple. Both
flows down to 230mm. Cycled HIC 142 and the ripple disappeared.
Put TIC121 into auto mode. |
Thu Dec 2 10:51:16 2004, Doug Preddy, Normal Running, power lead ripple
|
Ripples got worse overnight.LHe in 10.3-11.7, PL Neg 8.0-8.7. Flows <200mm.
cycled CV142. Flows 240mm. LHe in 10.3-11.3 PL Neg 7.9-8.1 |
Wed Nov 28 15:07:08 2007, Kevin Trithardt, Other, power lead regeneration
|
Power leads cold again, power supply ramping up. |
Tue Oct 31 03:52:29 2006, Doug Preddy, Quench Recovery, power lead quench at 2:30 this morning
|
Compressor still on. Starting flow to solenoid |
Thu Oct 26 14:14:57 2006, Doug Preddy, Quench Recovery, power lead quench
|
solenoid tripped on power lead temp. I was here and caught it. System
cooling. |
Fri Nov 23 08:35:37 2007, Doug Preddy, Normal Running, power lead problems
|
About 10 hours ago the power lead temperatures started to fluctuate and
climb.
I cycled CV142 and the Temps have dropped and stablized. |
Mon Nov 26 09:45:43 2007, Doug Preddy, Normal Running, power lead problems
|
Power lead temperatures were rippling yesterday afternoon. I asked one of
the operators to cycle CV142.
The temperatures were rippling again this morning, so I cycled CV142. |
Fri Oct 29 14:25:23 2004, Doug Preddy, Normal Running, power lead flows dropping
|
Flow is down to <190 mm. temps are starting to climb. Cycled HIC142 |
Mon Nov 1 07:17:44 2004, Doug Preddy, Normal Running, power lead flow gone bad
|
power temps as follows:
LHE_IN 23
PL_POS 36
|
Wed Oct 24 12:04:06 2007, Doug Preddy, Maintenance, power lead and cryopump regeneration
|
Regenerating M9B:CP2 as temperature was up to almost 20k.
Shut off flow to power leads to allow them to warm up. The positive and
negative temps were beginning to creep up.
|
Thu Jul 24 16:28:50 2008, Doug Preddy, Quench Recovery, power bump
|
There was a power bump at ~15:00 today. All mseon hall cooling water went off. Compressor tripped. Main magnet went off.
Restarted compressor after water
pumps came back on. Started flow to the cold box. Compressor outlet pressure went >12 Bar and tripped of the compressor. Restarted again and am now cooling
in parallel cold return. Solenoid ~25K. |
Wed Oct 6 07:57:01 2004, Doug Preddy, Start Up, parallel cold return
|
Switched to parallel cold return at 4:00 yesterday afternoon.
6:30 this morning started closing cv155 as temps had bottomed out at 24K. |
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
also tripped off. It was reset and restarted. |
Fri Jan 26 15:10:37 2007, Doug Preddy, Maintenance, new control computer installed
|
I have installed a new control computer at the M9 solenoid control panel |
Tue Apr 20 07:06:41 2004, Doug Preddy, Start Up, morning day 2
|
Temps in solenoid are equalling out. Increasing PIC229 to 11 bar. |
Sun Dec 5 11:15:24 2004, Doug Preddy, Normal Running, more ripples
|
I loked at the power lead temps this morning. LHe_in 10.4-12.0 PL-Neg 8.0-
9.0 PL-Pos 9.8-10.4. Flows down to 160mm. Called Ops and got Danica to
cycle CV142. Ripples and flow improved on the second try. |
Wed Aug 9 06:59:43 2006, Willy Andersson, Quench Recovery, more // cold return stuff
|
About 21:00 last night the solenoid temps had not changed much, pretty well
flat lined. I guess my reducing CV155 stalled the cooling. Called Don
Arseneau and asked him to increase CV155 to about 80% open. Temps slowly
|
Sat Jul 22 06:34:14 2006, Experimentor, Quench Recovery, looking good
|
Donald Arseneau reporting.
It is looking pretty good, so I came back in with the intent of energizing
|
Sat Oct 16 17:18:50 2004, Other, , lame
|
|
Wed Apr 16 15:12:01 2008, Doug Preddy, Normal Running, graphs to load
|
There are three strip tools saved:
coils
powerlead
startup |
Fri Oct 5 13:25:41 2007, Doug Preddy, Quench Recovery, funny graph
|
There was a fluctuation of the positive lead temp with no flow going to
the power leads. |
Fri Apr 9 16:07:28 2010, Doug Preddy, Start Up, flow to power leads started
|
|
Wed Oct 13 08:17:00 2004, Experimentor, Start Up, cycling 142 when temp hit 10.68
|
I tried cycling the valve twice -- at about 11:30 and again around 1:00,
trying both the buttons and the dial -- but it has had no effect on
the temperatures (aside from the transient spikes). That might be
|
Sun Oct 17 04:26:29 2004, Other, Start Up, cycling 142 when temp hit 10.68
|
> I tried cycling the valve twice -- at about 11:30 and again around 1:00,
> trying both the buttons and the dial -- but it has had no effect on
> the temperatures (aside from the transient spikes). That might be
|
Tue Jul 31 07:53:57 2007, Kevin Trithardt, Normal Running, cycled power leads
|
got a page for the power lead temp
came down and cycled the power leads.. did not seem to make a difference..
|
Mon Oct 11 03:56:14 2004, Experimentor, Start Up, cv142 valve
|
noticed that the lead temp rose to 24K over the past 4 hours. had control
room personnle cycle the cv142 valve. temperature dropped.
|
Mon Oct 11 11:49:34 2004, Experimentor, Start Up, cv142 valve
|
noticed temp rise, which occured only about 5 hours after the
last "reset" .... the time between resets seems to be decreasing, which is
not a good sign.
|
Mon Oct 11 22:32:11 2004, Experimentor, Start Up, cv142 valve
|
temp of leads begins its exponential rise again (caught it at 12K), approx
11 hours after last reset. this time asked operator to shut off valve for
3 seconds, then turn back on.
|
Tue Oct 12 02:05:31 2004, Experimentor, Start Up, cv142 valve
|
after only two hours since last lead cycling, they warm up quickly.
ops cycles the valve, but more quickly this time, off ... 1 sec ... on.
|
Tue Oct 12 13:00:08 2004, Curtis Ballard, Start Up, cv142 valve
|
Curtis closes and opens slowly at about 11:00 am this morning. Wants to see
if that works better than the sudden on/off switch.
|
Sun Oct 15 07:09:41 2006, Other, Normal Running, cryopump bcp2 trip
|
Donald Arseneau reporting
Not really solenoid realated, but FYI...
|
Thu Jun 2 09:16:40 2005, Doug Preddy, Quench Recovery, continuing to cool
|
See screen grab |
Mon Sep 13 13:56:06 2004, Doug Preddy, Shut Down, compressor off
|
compressor off |
Thu Jul 20 13:27:21 2006, Willy Andersson, Quench Recovery, cold return mode continues...
|
cr_c1 and cr_12 are both at about 45K and heading slowly down, so the
gamble of going to // cold return worked. Maximum opening of CV155 is
limited by CV204 goes fully closed and suction pressure begins to rise
|
Thu Jul 20 13:34:26 2006, Willy Andersson, Quench Recovery, cold return mode continues...
|
Even though cr_c1 and cr_c12 have begun to tick down, cr_c7 and cr_c6 are
actually ticking up. This is probably a wave of warming propagating through
the solenoid. As long as the two inlets are falling in temperature then
|
Tue Sep 18 18:48:11 2007, Curtis Ballard, Maintenance, cold box leak check
|
The leak check of the cold box diff pump fittings. Found a leak at the
base of the diff pump on the tee that is apparently used to fill the pump
with oil. The fitting was removed and a plug was removed that resembled a
|
Fri Jul 25 21:48:15 2008, Doug Preddy, Quench Recovery, another quench
|
System was stable and solenoid ramped up at 4:00 today. At about 7:30 it tripped off again. I came in and restarted the compressor and am now cooling in
parallel cold return mode. Solenoid is at ~30K. I talked to Kevin and he will get the power leads on tomorrow morning. Once they are stable the power supply
can be ramped up.
I phoned Curtis, but there was no answer (he may be on holidays??) |
Thu Aug 19 10:28:32 2004, Doug Preddy, Start Up, after M9bv5 FIX
|
Over the last couple of days we replaced the gate on the M9BV5 valve. The
old one had worn the teflon sliders on the sides. Metal shavings on bottom
of body. Found a replacement with metal rollers, rather than slides.
|
Tue Oct 5 07:18:16 2004, Doug Preddy, Start Up, adjust compressor discharge pressure
|
adjusted compressor discharge pressure to 11 Bar |
Wed Dec 1 12:55:56 2004, Doug Preddy, Normal Running, added one bottle helium gas
|
buffer tank pressure is up to 6.5 psi. |
Tue Jun 12 12:48:25 2007, Doug Preddy, Maintenance, added one bottle UHP helium to system
|
|
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 and HIC141 . Finally put TIC121
into manual mode at 0.65. Power lead fluctuation died out and liquid
|
Fri Sep 26 09:44:25 2008, Doug Preddy, Maintenance, Water flow interlock restored
|
yesterday |
Fri Oct 5 10:25:43 2007, Doug Preddy, Quench Recovery, Unknown quench 2
|
Kevin and I were at the Sulzer panel when the system quenched 2. No
obvious reasons. Restarted the system. |
Thu Jun 9 21:41:25 2005, Willy Andersson, Quench Recovery, Trying to achieve stable cooling.
|
From about 08:00 to 15:00
See Doug's previous entry for quench recovery details.
|
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 a print screen of the striptool
graph and solenoid screen. See files Prtscrn1_april25_2004.doc and
|
Thu Jun 9 06:53:40 2005, Experimentor, Other, Trip at 6:45 Today.
|
Solenoid quenched at 6:45. All temperature monitors were flat until trip.
Hearing compressor stop was first warning. Lights are:
Turbine T1 overspeed, Compresor alarm, cryostat quench.
|
Tue Jun 19 21:15:41 2007, Doug Preddy, Quench Recovery, Today's quench
|
power lead temps caused a quench at 8:30 this morning. Recovery of system
and flow to solenoid was started by 11:00. Solenoid was switched to series
cold at 3:00. Solenoid and power leads were cold at ~6:30. power supply
|
Fri Dec 19 13:07:25 2003, Willy Andersson, Maintenance, To-Do list for M9SOL
|
I had distributed this list by email earlier this month. I have added
a few items at the bottom. I am posting it on the M9SOL Elog under
Maintenance. Some of the items may not be achievable or practical but
|
Fri Dec 19 13:59:53 2003, Doug Preddy, Maintenance, To-Do list for M9SOL
|
> I had distributed this list by email earlier this month. I have added
> a few items at the bottom. I am posting it on the M9SOL Elog under
> Maintenance. Some of the items may not be achievable or practical but
|
Tue Aug 24 12:09:50 2004, Doug Preddy, Normal Running, The past few days
|
The solenoid has been re-started as of August 19. It was cooled down and
energized over the weekend. Sunday night at 9:30 it tripped due to
negative power lead going above it's set point. The system stopped flow to
|
Fri Apr 27 10:16:44 2007, Kevin Trithardt, Quench Recovery, Test
|
Don't Panic -- There was no quench. I am testing the e-log.
I have added Kevin's name and e-mail to the M9 e-log. He will be e-mailed
when a quench recovery log is submitted. His name is also included in the
|
Tue Jun 13 16:04:33 2006, Willy Andersson, Quench Recovery, TIC 121 set to auto mode
|
|
Thu Jul 20 02:59:06 2006, Doug Preddy, Quench Recovery, T1 still not starting
|
I will leave the cold box to warm overnight and try it again in the morning. |
Thu Jul 20 08:18:31 2006, Doug Preddy, Quench Recovery, T1 started
|
Started flow to turbines. Both started. T1 seems a bit slow. HIC110 at 0.85
SI110 = 4100.
Cool down started. |
Thu Jul 20 00:52:13 2006, Doug Preddy, Quench Recovery, T1 frozen
|
T1 will not spin up. Warming up cold box. |
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 level. Doug Preddy
requested that I help Curtis Ballard top up system with new
|
Sun Aug 14 10:03:13 2005, Willy Andersson, Normal Running, System stable
|
No experiment running in M9B.
Solenoid current is zero and power supply not armed.
|
Fri Nov 9 18:56:20 2007, Doug Preddy, Maintenance, System Ready to Run
|
M9BMP2 was replaced. Vacuum good. Solenoid is ramped up. :) |
Wed Aug 9 07:50:49 2006, Doug Preddy, Quench Recovery, Switched to series mode.
|
Cool down continues. |
Thu Oct 5 14:53:54 2006, Doug Preddy, Start Up, Switched to series mode
|
|
Thu May 31 11:51:49 2007, Doug Preddy, Quench Recovery, Switched to series mode
|
|
Wed Jun 14 10:35:30 2006, Willy Andersson, Quench Recovery, Switched to series cooling.
|
Had system in //return cooling overnight with small flow to keep power
leads cool. Switched to series mode about 30 minutes ago. Building LHe
level. |
Mon Oct 5 11:54:58 2009, Doug Preddy, Normal Running, Switched TIC121 into auto mode
|
|
Fri Jun 25 14:20:58 2004, Willy Andersson, Quench Recovery, Switch to series mode
|
At about 14:00 solenoid temps dipping below 8 K. Trace of LHe level (dense
gas) starting to show. Switching to series cooling mode. |
Thu Sep 2 21:58:34 2004, Willy Andersson, Quench Recovery, Switch to series cooling
|
Solenoid had tripped on powerlead overtemp at about 09:00 this morning.
Doug recovered the system to // cooling. I switched system to series
cooling at about 21:30. LHe level at about 10%. Buffer tank pressure is low
|
Tue Aug 14 12:55:12 2007, Doug Preddy, Normal Running, Strip tool saves
|
There are two strip tools saved:
coils
powerlead |
Thu Oct 26 04:34:15 2006, Willy Andersson, Quench Recovery, Still in // cold return mode.
|
Leaving system cooling in // cold return mode, cooldown rates still good.
Had flow on to powerleads since re-starting cooling flow to solenoid.
Either I (when I return to work later this morning) or Doug will do the
|
Tue Apr 1 15:17:06 2008, Doug Preddy, Start Up, Starting up vacuum systems
|
Monday afternoon there was no control of the vacuum system. The controls were working, but no output to devices. The "output" breaker in the PLC box was
found to be tripped. Reseting it allowed control to the vacuum systems.
I started the regeneration of BCP2 this morning, but hte output breaker tripped
again. reset it and continued to pump.
Started to pump out the solenoid also. Removed jumper on the BDP2 temperature read-back, bypassed BV2, and BCG2. |
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. |
Wed Jul 28 22:01:31 2004, Doug Preddy, Quench Recovery, Starting flow to solenoid
|
c1 28, c12 29, c6 11.6, c7 12.5 TI121 22.5 |
Wed Oct 4 07:29:04 2006, Doug Preddy, Start Up, Starting cool down
|
Started compressor yesterday with flow through the purifier overnight.
Starting tubines this morning in parallel warm return |
Mon Apr 19 15:06:49 2004, Doug Preddy, Start Up, Started turbines
|
Purifier run over the weekend. Both LN2 dewars empty, but purifier cold.
Disabled CV211 and flowed all charge gas through purifier. Started turbine
at 11:00am. set strip tool to monitor temps. Started M9BCP2. Pumped out
|
Mon Oct 4 09:16:29 2004, Doug Preddy, Start Up, Started turbines
|
Started flow to the turbimes with the solenoid in parallel warm return. |
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 all wires on the contactor in
the Sulzer control panel (RP900).
|
Tue Apr 24 10:21:49 2007, Doug Preddy, Start Up, Started flow to turbines
|
Started flow to turbines at about 10:00 in parallel warm mode. |
Fri May 26 10:03:03 2006, Doug Preddy, Start Up, Started flow to power leads
|
Started flow to power leads.
Liquid level 15% |
Mon Sep 24 15:08:41 2007, Doug Preddy, Start Up, Started cool down this morning
|
The vacuum in the cold box was good on Friday 0.0 X 10-4. Let it pump over
the weekend. Added two bottles of UHP helium to system Friday.
|
Mon Mar 29 09:25:52 2010, Kevin Trithardt, Start Up, Started cool down this morning
|
|
Mon Apr 23 16:31:02 2007, Doug Preddy, Start Up, Started compressor
|
Startewd compressor and purifer today. |
Wed Mar 24 08:30:33 2010, Doug Preddy, Start Up, Start up
|
Compressor started yesterday afternoon. Pumping out solenoid overnight. Cold box vacuum good. circulating helium to solenoid in Parallel warm mode, CV142
open. Purifier running. |
Thu Aug 17 08:04:44 2006, Doug Preddy, Quench Recovery, Solenoid tripped at about 3:00 this morning
|
restarting system.
Compressor would not start. Idid not see anything that would not let it
start. Pushed rest button upstairs, and reset contactor. Compressor started.
|
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. The vacuum in the solenoid
went away (up to 8 Torr). This was found to be a result of a leaking
|
Tue May 18 15:04:36 2010, Kevin Trithardt, Maintenance, Solenoid ramping up
|
|
Tue Jul 14 15:28:36 2009, Doug Preddy, Quench Recovery, Solenoid ramped up
|
The solenoid is cold and I have started to ramp up the power supply. Some slight ripples in the power leads, but they are dieing out. Liquid level is
a lot more stable this time. |
Fri Nov 12 16:54:50 2010, Doug Preddy, Normal Running, Solenoid ramped up
|
|
Tue Aug 14 10:15:22 2007, Doug Preddy, Maintenance, Solenoid ramped down
|
Solenoid ramped down and locked out for M9A slits work. |
Wed May 30 08:38:38 2007, Doug Preddy, Quench Recovery, Solenoid quenched this morning
|
Solenoid quenched this morning on power lead temp (I believe).
I restarted it at ~7:00, but the capacity control for the compressor would
not respond. I shut the system back down and checked as many relays as I
|
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 temps are falling, liquid is
building. No flow to the power leads yet. |
Mon Nov 19 02:58:44 2007, Doug Preddy, Quench Recovery, Solenoid quenched on power lead over temperature
|
I received a page at 1:30 this morning. The power lead temperatures were
climbing. Cycling CV142 did not fix the problem. The solenoid quenched at
1:50.
|
Fri Sep 26 09:45:18 2008, Doug Preddy, Quench Recovery, Solenoid quenched at 7:50
|
Compressor on. Turbines started. Vacuum system recovering. |
Wed May 27 08:06:00 2009, Doug Preddy, Quench Recovery, Solenoid quenched at 5:00
|
The solenoid quenched at 5:00 this morning due to power lead temps. The temps started oscillating about 10 minutes before the trip. The compressor and
the cold box stayed on. The flow to the solenoid was stopped.
The solenoid flow was started in parallel cold return at ~7:20. |
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 |
Sat Aug 23 17:02:38 2008, Doug Preddy, Quench Recovery, Solenoid quenched
|
The solenoid quenched this afternoon at ~12:30. The compressor shut down. Fault lights were cold box trip.
Restarted the compressor by 3:30 and started
flow to the solenoid by 4:15.
Peter Yandon came down with Ops' radio to investigate the radios may trip the solenoid. When the radio is keyed the vacuum
guages jump. CG1, CG5 and the pirani gauges. This would trip of the refrigerator. More investigation to happen tomorrow and on maintenance day. |
Mon May 3 07:49:54 2010, Doug Preddy, Quench Recovery, Solenoid quench Saturday
|
Solenoid quenched at ~13:30 Saturday. Kevin came in later in the day to recover it. System was in all around mode, no flow to solenoid. Discharge pressure
went over 12 bar while starting flow and tripped the compresswor. After restart solenoid was cooling well.
Monday morning 7:30 I opened CV155 to increase the cooldown rate. |
Tue Nov 23 07:47:00 2004, Doug Preddy, Quench Recovery, Solenoid quench Nov 21
|
Solenoid quenched Nov 21 due to alarge power bump. Everything tripped off
including vacuum and water pumps. Cold box vacuum was at 3.6e-1, so pumped
it out overnight.
|
Tue Jul 27 23:33:27 2004, Doug Preddy, Quench Recovery, Solenoid quench 9:30
|
I was phoned at about 9:30 tonight with a solenoid alarm. After looking at
the display I found the system to be tripped off. When I came in I found
the compressor off and the solenoid quenched. There was no real indication
|
Sat Jun 16 15:05:03 2007, Doug Preddy, Normal Running, Solenoid power lead temp problem
|
Power lead temps rippling and increasing. I asked an operator to cycle
HIC142. This seems to have fixed the problem (for now). |
Thu Oct 26 11:45:22 2006, Doug Preddy, Quench Recovery, Solenoid cold
|
power leads cold 50% liquid.
Turning on power supply |
Thu Sep 27 07:41:15 2007, Doug Preddy, Start Up, Solenoid cold
|
Solenoid cold and in series mode. 50% liquid level. Starting flow to
powerleads. |
Fri Nov 9 14:50:03 2007, Doug Preddy, Quench Recovery, Solenoid cold
|
Solenoid cold. Added two bottles of helium. Allowing to stablize. Will
ramp power supply in half an hour. |
Mon Jul 18 11:18:40 2005, Doug Preddy, Quench Recovery, Solenoid Quenched over the weekend
|
The solenoid was found to be warm on Monday morning. M9Q3 had a bad water
leak over the weekend. The water header serving Q3 was turned off and the
leak confirmed. Q3 was isolated and the header was turned back on. My
|
Sun Oct 5 18:54:27 2008, Doug Preddy, Quench Recovery, Solenoid Quench ~16:30
|
Restarted compressor and flow to coldbox by 18:30 |
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 return. |
Tue Aug 8 07:27:49 2006, Doug Preddy, Quench Recovery, Solenoid Quench at about 6:00 this morning
|
No indication of problem. Turbines still running, but no flow to solenoid.
Started flow. Solenoid ~20K. |
Tue Oct 9 12:58:22 2007, Doug Preddy, Quench Recovery, Solenoid Quench 2
|
Refrigeration sytem shut off at ~ 12:30 today. No apparent reason. Only
light on was a cold box fault.
Restarted in parallel cold return mode. |
Fri Apr 27 10:10:07 2007, Doug Preddy, Normal Running, Solenoid Cold
|
Solenoid cold, power leads cold. Alarm handler started. |
Mon Apr 26 07:48:46 2004, Doug Preddy, Quench Recovery, Series mode
|
Switching over to series mode. |
Tue Jul 15 08:47:13 2008, Doug Preddy, Normal Running, Screen grab of normal running
|
Solenoid was recovered on Sunday July 13. The power leads started to ripple slightly this morning, so I cycled HIC142. No real change. |
Thu May 19 15:05:31 2005, Doug Preddy, Maintenance, STA 120 replaced
|
The turbine 2 speed indicator control box STA 120 has been replaced with a
newer style Jaquet controller. This is similar to the ones used in the
ISAC helium liquifier. See attached photos for set up parameters. These
|
Thu Aug 10 08:33:44 2006, Doug Preddy, Normal Running, Running low on helium
|
Temperture okay, but there are fluctuation in the power leads. PIC229 is
trying to charge. The buffer tank pressure is just >0 psi. I will lower the
liquid level to 40% to allow some helium to boil off into the buffer tank. |
Fri Jul 28 20:39:40 2006, Doug Preddy, Quench Recovery, Restarting refrigerator
|
Solenoid quenched at about 6:00 tonight.
I restarted the compressor, then the cold box and turbines. When cold box
was at 25K I started flow to the solenoid in parallel cold return. |
Fri Apr 27 10:32:07 2007, Doug Preddy, Quench Recovery, Reset quench relay logic box
|
The quench relay logic controller was not functioning correctly. It showed
a "Trip" light and no other lights. I cycled the power to the controller
and it now seems to be working properly. This did cause a quench and I am
|
Wed Dec 10 15:44:58 2008, Doug Preddy, Maintenance, Repairs to solenoid power supply
|
Klaus and company pulled the ramp rate card out of the solenoid power supply. Operational checks were done and the rate switch was cleaned. The card was
reinserted and the ramp rate was checked. The power supply seems to ramp at a proper rate in all positions. ***Note*** The output voltage of the power
supply is proportional to the ramp rate. The faster the ramp rate the higher the output voltage. |
Tue Jun 29 14:59:46 2004, Willy Andersson, Normal Running, Removed jumper on vacuum controller.
|
Tuesday 14:55
Removed jumper on back of PIC 901. This jumper should be off during
|
Mon Apr 18 09:52:11 2005, Doug Preddy, Maintenance, Relays replaced
|
The following relays have been replaced in the Sulzer control panel:
K341, K379, K132, K324A, K314, K125, K127, K133, K252, K227, K233, K238,
K239, K245, K246.
|
Sat Jul 26 01:06:04 2008, Doug Preddy, Quench Recovery, Refrigerator in series mode
|
Switched to series mode. Solenoid ~8K, starting to build liquid. |
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 is 7 psi.. |
Wed Oct 4 18:10:18 2006, Willy Andersson, Start Up, Quick check on system
|
System in good // warm return mode, temps coming down nicely. BCP2 cryopump
does not look too healthy, temperature is just over 20K, very close to low
set point.
|
Mon Sep 13 10:55:25 2004, Doug Preddy, Shut Down, Quench and shutdown
|
The solenoid quenched on powerlead temps this morning at 10:00. It is
warming up and the power leads are >200K.Isolating and purging the coldbox
is not very useful now, so I am shutting the system down. |
Tue Jul 19 18:09:56 2005, Willy Andersson, Quench Recovery, Quench II
|
Machine trip just as I was exiting the TRIUMF gate. QRL said cold box fault
as did red lite on compressor. At cold box panel all turbine red lites were
on and compressed air failure lite was on. But there was no problems with
|
Wed May 30 11:27:32 2007, Doug Preddy, Quench Recovery, Problems recovering
|
Various start up problems :
MV51 stuck open. Finally got it closed by hitting the valve with a hammer.
Vacuum is bad in cold box as MV902 tripped closed.
|
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 may5_04_1800.BMP It looked as
though the monitoring signals flat lined for about 2 hours for some reason.
|
Sun Nov 28 10:15:18 2004, Willy Andersson, Quench Recovery, Powerlead quench ?
|
Got page very early this morning. Couldn't come in til 08:30. System was
in idle running mode and someone had reset the QRL panel so my guess is
that the solenoid tripped on powerlead overtemp. HIC142 was not fully open
|
Thu Oct 26 04:27:31 2006, Willy Andersson, Quench Recovery, Powerlead overtemp
|
02:30 this morning got page from operations.
Looked at system online, appears that there was a powerlead overtemp
that caused the quench. Compressor still running. After arriving to
|
Thu Nov 4 13:33:49 2004, Doug Preddy, Normal Running, Power supply problems
|
Last night the power supply was ramping up at a very slow rate. This
morning it was energized,but with no current even though the limit was set
to 500 amps. Klaus R. found the pot. that set the current limit was bad.
|
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 the leads to drive any frozen
impurities out. |
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, but starting to increase in
temperature. I also noticed that the flow had dropped to 200 mm. I power
|
Mon Oct 25 15:44:15 2004, Doug Preddy, Normal Running, Power lead temps starting to ripple
|
Power lead temps starting to ripple at a 1.5min period. PL flows are
both>250 mm. |
Sun Aug 29 14:39:19 2004, Doug Preddy, Normal Running, Power lead ripple
|
The LHe in and PL-neg temps have been building up a ripple over the last
few days. Curtis cycled HIC142 Friday evening at about 5:00. I just had
the Main control room operator (Peter) cycle them again. The ripples died
|
Thu Jul 5 03:04:50 2007, Doug Preddy, Normal Running, Power lead problems
|
The power leads temps are starting to cycle again. Earlier today M9
experimentor cycled HIC142 to stablize the oscillations. They started
again early this morning, so cycled HIC142 again. Oscillations died back,
|
Wed Aug 25 07:47:05 2004, Doug Preddy, Normal Running, Power lead flow
|
The power lead flows had dropped to 210 mm this morning. I increased HIC142
from 0.8 to 0.83. The flows are back to <250 mm and the temps are back to
LHe in-10.8, PL-Pos-11.1, PL-Neg-8.9 |
Tue Jun 14 18:48:14 2005, Experimentor, Normal Running, Power bump at 18:40
|
Solenoid tripped on a power bump at 18:40 Tuesday
-- Donald Arseneau |
Mon Mar 5 14:59:41 2007, Doug Preddy, Maintenance, Password
|
On the weekend someone used this log to send spam messages. I have
installed a password for the write privilege. Please contact me at 6399
for the password.
|
Tue Oct 2 13:02:37 2007, Doug Preddy, Normal Running, PLC problems
|
While downloading new code for 2A PLC the M9 and M15 vacuum systems were
shut off. This is due to the two systems piggybacking onto the 2A PLC.
When M9 Epics came back up there was no controls. Eventually I reset the
|
Tue Sep 25 07:34:04 2007, Doug Preddy, Start Up, PIC229 to 11 bar
|
adjusted turbine speeds and HIC104 to maintain their values. |
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. |
Thu Jul 20 11:01:09 2006, Willy Andersson, Quench Recovery, Opened up warm return valves CV151 and CV153
|
Mu2 pressure was just about at trip point due to trapped volume of helium
warming. So opened up warm returns to bleed off pressure and prevent it
from rising. |
Fri Jul 21 17:18:19 2006, Willy Andersson, Quench Recovery, Opened HIC142 fully open
|
Power leads have flatlined but still building LHe level. |
Mon Dec 3 14:59:58 2007, Doug Preddy, Quench Recovery, Not really a quench recovery, But...
|
Not really a quench recovery, but...I wanted to send this out via e-mail.
The contactor for the compressor building fan failed recently. Randy is
looking after it, but parts will have to be ordered. The big door should
|
Wed Sep 19 20:53:18 2007, Doug Preddy, Maintenance, More diff pump news
|
Cold box pumped out to ~ 190 mTorr overnight.Leak checked the pump again.
Still leaks at dip stick.Tried resetting the o-ring on the dip stick. It
still leaks baddd!!!
|
Wed Nov 24 07:28:30 2004, Other, , Mission Impossible
|
|
Wed Nov 24 07:28:38 2004, Other, , Mission Impossible
|
|
Tue Nov 7 10:35:32 2006, Doug Preddy, Normal Running, Maintenance day
|
I ramped down the solenoid power suplly and shut off flow to the power
leads. I will allow them to warm up and (hopefully) recover the flow rates.
I am also regenerating the M9BCP@ cryopump. |
Sun Oct 5 11:12:48 2008, Doug Preddy, Normal Running, M9B:V1 interlocks and a IOC crash
|
M9A:V1 was removed this shutdown. It's "in" limit is required to allow M9B:V1 to be opened. I have bypassed the interlocks on M9B:V1 until the M9A:V1 limits
can be jumpered. Don Dale and George Clark have been informed.
Also an IOC crashed so the data pages were not updating. Evgeny rebooted the IOC. All is
now fixed. |
Sun Jul 1 16:09:37 2007, Doug Preddy, Normal Running, M9B:DP2 tripped off
|
Diffusion pump tripped off and vacuum (and power lead temps) going up. I
had an experimentor cycle HIC 142 at 4:15 this morning. When I got in
today I restarted the pump and it is back to 6.0 x 10-7. Power lead temps
|
Wed Nov 2 10:17:27 2005, Willy Andersson, Start Up, M9B helium refrigerator and solenoid cooldown
|
Started M9B MYCOM helium compressor circulating helium through system last
Friday. Right hand purifier was regenerated previously, LN2 fill system
started and flow started from buffer through purifier to low pressure
|
Fri Oct 1 11:39:55 2004, Doug Preddy, Maintenance, Loading of compressor not working
|
When the compressor was restarted on Monday, the remote load button would
not respond. The compressor was shut off. After two days of searching the
wiring etc. a bad connection was found on DR1 relay (upstairs in the
|
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% |
Tue Sep 9 15:04:23 2008, Doug Preddy, Maintenance, Jumpered interlock for diff pump water flow
|
Jumpered interlock for diff pump water flow in Proteus box. |
Wed Apr 21 06:48:31 2004, Doug Preddy, Start Up, JT bypass closed
|
Closed cv155 |
Fri May 21 09:27:39 2004, Doug Preddy, Maintenance, Idle mode
|
Power supply was ramped down yesterday as there are no users.
The Sundance server was rebooted yesterday. This morning the displays were
all white screened, so I restarted the session. The computer was running
|
Sun Jul 13 20:17:24 2008, Doug Preddy, Other, Helium refrigerator problems
|
In early June the helium compressor was running with the solenoid cold. A vavlve broke off at the suction side of the compressor. The entire helium inventory
was lost. The cold box tripped off, but the compressor did not. It ran for ~ 2 hours before I came in and shut the system down. The valve was repairedby
Kevin T and Neil Wong. We ran hot (>100C) nitrogen through the fourth adsorber for one week. The solenoid and cold box were allowed to warm above 273C. |
Mon Aug 9 14:27:12 2010, Doug Preddy, Shut Down, Helium plant shut down
|
|
Thu Aug 10 16:33:11 2006, Willy Andersson, Quench Recovery, Flow to solenoid tripped on powerlead temperature.
|
Power lead temps were drifting up, tried to tweak TIC121 and HIC141 to
unstall powerlead flow. Got quench. Restarted series flow, building LHe
level. |
Fri Nov 3 12:09:51 2006, Doug Preddy, Normal Running, Fine tuning
|
The power lead temperatures have been climbing at a rate of ~ 0.02K very 8
hours. The negative lead started to show some rippling this morning. The
positive flow had dropped from >250mm to 240mm. I cycled CV142 and the
|
Fri Dec 19 11:34:10 2003, Doug Preddy, Quench Recovery, Final home of this E-log
|
http://isac.triumf.ca/m9sol/
Chris has set up the M9 solenoid e-log at the above web address. Play with
it and let me know if it breaks. |
Fri Jul 21 23:36:21 2006, Doug Preddy, Quench Recovery, Final cooldown problems
|
80K shield is down to <60K Liquid level not building. Power leads rippling
and warming. T1 inlet 85K with 10%heater load.
Lowered the set point of TI121 to 17K. Shut off flow to the 80K shield to
|
Wed May 2 16:28:16 2007, Doug Preddy, Normal Running, Energizing solenoid to 500 amps
|
Power supply initially would not ramp up. I exercised the rate control
selector switch and found that the power supply would ramp up at only the
30 minute setting. It is ramping up at a rate of about 60 minutes. |
Sat Aug 7 23:40:47 2004, Willy Andersson, Quench Recovery, Energizing solenoid
|
23:39 Powerleads cold, LHe level over 40% and rising. Energizing solenoid
to 500 Amps, ramp rate 60. Checking compressor building then going home. |
Tue Oct 31 08:37:34 2006, Doug Preddy, Quench Recovery, Energizing solenoid
|
|
Sun Jul 29 04:58:27 2007, Doug Preddy, Quench Recovery, Energizing solenoid
|
LHe level~50%. Still have a slight ripple in the power leads, but they are
cold enough to power the solenoid. LHe_in varies between 10.7K - 11.3K. |
Thu Oct 12 19:54:10 2006, Willy Andersson, Quench Recovery, Energized solenoid.
|
Switched to series mode about 6 hours ago. Cooling continued including
power leads until LHe level at about 50% and powerleads appeared stable. |
Fri Oct 13 00:13:57 2006, Experimentor, Quench Recovery, Energized solenoid.
|
Hi there,
This is Khashayar (experimenter). Lookin at all different temperatures and
|
Wed Jun 14 16:27:01 2006, Willy Andersson, Quench Recovery, Energized solenoid
|
Powerleads appear stable. |
Fri Jun 30 11:13:00 2006, Doug Preddy, Normal Running, E-log is back up and running
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I would have made an entry when it died, but----- |
Tue Jun 13 15:52:46 2006, Willy Andersson, Quench Recovery, Doug has reduced and now closed CV155.
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Now in full // cold return mode.
Had just talked with Curtis, He said thta he has already informed the
experimentors that the solenoid will not be ready until tommorow, so he
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Wed Jul 28 21:26:19 2004, Doug Preddy, Quench Recovery, Double Power bump
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Two power bumps tonight. Everything tripped of. Restarted cooling water
pump, diff. pump under solenoid etc. Computer stayed on! Starting
compressor. |
Sun Oct 17 05:03:13 2004, Other, Start Up, Cycle valve after oscillations begin
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(Sat night/Sun AM) Helium temperature started oscillating, so
powered off magnet (precautionary) and cycled valve 142 (at 04:12).
Small oscillations begin almost immediately, so close and open
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Thu Jul 5 11:01:47 2007, Kevin Trithardt, Other, Current lead warm up
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Due to curent lead temperature occilation Doug recommended warming up the
current leads.
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Fri Jul 21 07:39:37 2006, Doug Preddy, Quench Recovery, Cool down continues
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Raised PIC229 to 11Bar. Started to close HIC155. Cooling rates improve. |
Fri Jun 25 12:36:04 2004, Willy Andersson, Quench Recovery, Compressor unloaded etc.
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At about 09:30 this morning I noticed the sound coming from the compressor
building seemed louder than usual. After entering the building I noted that
the compressor was unloaded to about 50% and the compressor suction was
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Sat Aug 7 22:37:04 2004, Willy Andersson, Quench Recovery, Compressor tripped off.
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Got a call at about 10:00 this morning, the whole system had tripped off.
No power bumps or other disturbances. When I arrived the only fault
indications were "ColdBox Trip" light on the compressor panel and on the
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Tue Jun 13 10:54:27 2006, Doug Preddy, Quench Recovery, Compressor tripped off
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No indicator lights etc as to why the compressor tripped. The only light
was a cold box fault. I had to shut off the main breaker before the
compressor would come back on.
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Wed Nov 15 11:09:28 2006, Doug Preddy, Quench Recovery, Compressor tripped off
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Compressor tripped this morning at ~8:45. I restarted the compressor, but
turbine 1 would not spin up. I let it warm for an hour and it started. I
started flow to the solenoind in parallel cold return. |
Thu Oct 12 11:53:04 2006, Willy Andersson, Quench Recovery, Compressor trip, 09:50 this morning.
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Main compressor tripped, refrigerator shutdown. Checked with experimentors
and main control room, no indications of power bump etc.
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Mon Jul 18 15:51:17 2005, Doug Preddy, Quench Recovery, Compressor restarted, flow to solenoid
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Recovered the vacuum in the solenoid, then started the compressor.
Started flow to solenoid in parallel warm return. |
Mon Aug 6 08:41:31 2007, Doug Preddy, Quench Recovery, Cold box trip at 6:00
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compressor off due to cold box trip at 6:00 this morning. Restarted system
and started flow to solenoid in parallel cold return. |
Fri Apr 16 10:15:26 2004, Doug Preddy, Start Up, Changes to M9sol Vacuum PC
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Yesterday and today there have been a number of changes made to the M9
Vacuum control computer. The computer now automatically boots up to the
Epics control page. This logbook is also automatically started. |
Fri May 26 08:45:38 2006, Doug Preddy, Start Up, Changed to series mode
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Changed to series mode.
Liquid level building. |
Fri Apr 23 09:19:30 2004, Doug Preddy, Normal Running, CV211
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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 restoring the control to CV211 I
did not get the wire into the connector properly. Went back up to the
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Fri May 26 07:29:54 2006, Doug Preddy, Start Up, CV155 closed
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CV155 closed.
Temps about 15K |
Mon Nov 29 09:28:16 2004, Doug Preddy, Normal Running, Buffer tank empty
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Came down to check on system. CV211 was fully open, trying to charge the
system. Ripples on LHe in and PL neg. CV141 fully closed. I closed CV147 to
0.45 to try and move CV141 open. Checked the buffer tank pressure, it was
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Tue Nov 23 11:35:44 2004, Doug Preddy, Quench Recovery, Another power bump
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Compressor tripped off again due to a power bump. Meson hall water off, so
vacuum pumps off again.
Pumps back on , vacuum pumps on, starting compressor. |
Thu May 6 09:32:13 2004, Willy Andersson, Quench Recovery, Additional notes from last night power lead problems.
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When performing last nights refrigerator adjustments I also increased the
compressor discharge pressure to 11.25 barA. Also the backup air compressor
was tripped off again and I reset it. Finally I opened the city water flow
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Thu Oct 5 11:51:53 2006, Doug Preddy, Start Up, Adde 2 bottles UHP Helium
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Valved off purifiers, but left LN2 on. |
Fri Nov 9 16:24:33 2007, Doug Preddy, Maintenance, 2APLC Died
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thumb wheel panel all lite up. 2APLC rebooted by Klara (Thanks). M9BMP2 not
pumping properly. Edi is looking at it. |
Wed Aug 9 06:44:58 2006, Willy Andersson, Quench Recovery, // cold mode cooling continues.
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After restarting flow to the solenoid yesterday in // cold return mode
TIC121 just refused to go lower than about 29K even when we closed CV155
all the way. Tried various things, switching to // warm return, changing
|