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Substation L1/ MCC L1 Update #2

Substation L1/ MCC L1 Update #2. July ??,2012. Status of Procurement. Substation All approval drawings submitted Testing is expected to take place August 8-10 Delivery will occur soon after testing is completed MCC All approval drawings submitted

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Substation L1/ MCC L1 Update #2

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  1. Substation L1/ MCC L1 Update #2 July ??,2012

  2. Status of Procurement • Substation • All approval drawings submitted • Testing is expected to take place August 8-10 • Delivery will occur soon after testing is completed • MCC • All approval drawings submitted • Expected arrival date of Mid to Late August (55-75 working days after approval drawings reach factory floor) • Drawings approved on 5/30/2012 • Cable • All cable delivered • Stored in LINAC • 350 MCM will be stored at warehouse until installation is closer • Panelboard • Delivered • Needs to be assembled

  3. Status of Procurement (Cont.) • Safety Switches • Delivered • Stored in LINAC • Cable Supports • Delivered • Stored in LINAC • Support Structures • Will be built out of unistrut • Assembly has not yet begun • Support frames will be built in house • Junction Box • Drawing is complete • Fabrication companies have yet to respond • Since only one needs to be ordered it is unlikely that a company will construct this enclosure • Will be submitting the drawing to the machine shop soon

  4. Project Schedule • Currently at a stand still • Complexity • Safety issues • Install should still be okay for originally planned September install • General Cleanup 2-3 weeks prior to shutdown of substation • Temporary electrical power will be setup the weekend prior • It could take riggers several days to remove and install substations • Small clearances • Large weights • May be several more days if given okay to shore the floor

  5. Issues • Substantial Weight Increase • 10,500 lbs. vs. 17,700 lbs. • Gallery floor has a very low load limit (350 lbs./sq. ft.) • This could effect everyday operations • Fork lifts, Tour groups, Removing equipment from downstairs • Could be wrong • Stevenson has no suitable indoor crane • Ceiling height is too low for carrydeck crane • 55,000 lbs. • Shoring the floor may not be a possibility • Much of the transformer will need to be dismantled • Secondary bus bars, frame, sheet metal • Increases electrician time

  6. Suggestions • FESS has been notified that it needs to begin looking into ways to fix this issue • Cut a hole in the ceiling • Has been done at other sites around the lab • Install outside • Requires Federal to make outdoor gear • Engineering Expense • Siemens subcontract issue • Expensive cable runs • Rigging job would be simplified • Aesthetics committee

  7. Temporary Power Plan • “Siphon” power from panel DHP-L2-2 Circuit #1 • Cable will be run on temporary supports • 4 conductor 350 mcm cable is heavy (~7 lbs./ft.) and will need an open area to lay • Some cable will be put on the floor but will be covered by a cable bridge • Setup 2 temporary panel board(s) • Run cable to individual loads • DHP panels, MCC loads • DHP panels will be locked out and tagged out • Group lockbox • MCC loads will have configuration control locks • We will check current prior to using any MCC loads to ensure they will not trip off during operation • Power will be provided 24 hours a day

  8. Installation Costs • 1 Crew of Riggers (4-6 men) • Unknown Cost • Will remain unknown until a plan is put in place by FESS • 2 Week of Electricians • $100/manhour x 2 electricians x 80 hours = $16,000 • Cable • 2/0 - $3,500 • 2 – $3,700 • House Power • $4,200 for panelboard • $2,000 for assembly • Miscellaneous Stock purchases • $2,100 Total Cost : $31,500 -> excluding rigging Previous Estimate: $23,000 -> excluding rigging Increase can be attributed to increased electrician time and panelboard cost

  9. Commissioning • Visual Inspection • Hi-Pot • Disconnect panel boards from temporary power • Reconnect panel boards • DHP-L1-1 will be turned on first • Fire alarms • Lighting • Etc. • DHP-L1-2 • DHP-L1-3

  10. What Will Become of the Removed Equipment? • Transformer will be kept as a spare • Currently have 1 spare for 8 transformers (5 – high rise, 3 – LINAC) • Transformer will be examined to make sure it is in good working order • Will be stored in Booster parking lot • Will be placed on a truck the same day it is removed to avoid excess rigger fees • Breakers • Will be rebuilt and tested • Used as spares • Primary Switch • Will be rebuilt and tested • Used as a spare

  11. Future PIP Project ???? • Create Site Wide Monitoring Network PIP Project PIP Project Not PIP Note: CG-1 has been moved from PIP schedule, and will now be handled by headquarters

  12. What we will do • Move Spare to F0 • All tests that are performed on newtransformers will be performed on spare • Oil samples • Order new substation Booster Y-BE2 Update Y-BW2 Y-BE2 • What we did • Current measurements • Voltage measurements • Thermal imaging scans • Listened • Disconnected all loads

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