[Hallb-engineering] [Fwd: [Monday_1330] Hurricane Power Test Outline]

[Doug Tilles]

To All
The test is on Thursday and the CHL will be crashed, But they do not 
think it will effect the ERS, but we will still be watching it very 
closely. The Eng. on Call knows.  Doug



David Kashy wrote:
> FYI,
> It should not effect our cryogenics but it could...
> It does mean that the hall could be open.
>
> Doug may have more from the MCC meetings.
>
> Dave
>
> ------------------------------------------------------------------------
>
> Subject:
> [Monday_1330] Hurricane Power Test Outline
> From:
> Steve Suhring <suhring at jlab.org>
> Date:
> Sat, 29 May 2010 08:02:07 -0400
> To:
> monday_1330 at jlab.org
>
> To:
> monday_1330 at jlab.org
> CC:
> John Kelly <jkelly at jlab.org>, mcc_ops at jlab.org
>
>
> Colleagues,
>
> The annual Hurricane Power Test will be conducted this Thursday, June 
> 3rd on the Accelerator Site.
>
> In reviewing past tests a couple of changes will be incorporated into 
> the plan.
>
> First, the power loss will be simulated by securing power at the unit 
> substations, not the 40 MVA substation. This gives us a bit more 
> granularity as to what power sources are turned OFF. The intention is 
> to only test those systems on the Emergency Power Loop.
>
> Second, since this test is being conducted while the Cryo Plant is at 
> 2K, we will have a trip of the CHL. The recovery time for this trip is 
> proportional to the length of time of the test, so we will want 'house 
> power' restored as quickly as possible. This means there will be a 
> greater number of people involved in securing power, checking systems 
> while on emergency power, and restoring the machine once we are back 
> on 'house power'. Also, we hope to reduce the length of time the 
> emergency loop is on generator power once 'house power' is reestablished.
>
> Please look over the attached spreadsheet outlining the activities, 
> times, and responsibilities for the test. Send your comments, 
> questions, and concerns back to me for consideration and incorporation 
> into the plan.
>
> Steve Suhring
> ------------------------------------------------------------------------
>
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