1. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 1 LCLS Sector 21 and BC1 Power Supplies Paul Bellomo, Antonio de Lira, Dave Mac Nair

2. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 2 LCLS Sector 21 and BC1 power supplies Intermediate power supplies for the BC1 dipole string Address two QE magnet issues MCOR12s and MCOR30s for small quads, trims and corrector magnets MCOR Bulk Power Supplies Power Supply Controllers and Transductors

3. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 3 2 Power supplies 25V, 375A, 10kW$16,000 1 PS controller$2,000 2 600A current transductors$1,320 Total$19,320 Does not include IOC, rack, miscellaneous component, EDI, labor, etc costs

4. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 4 * In LCLS mode this magnet runs opposite polarity from SLC mode ! This magnet gets switched off in LCLS mode Switch/protectionParts descriptionCostComment Manual Enclosure/fuses/miscellaneo us parts $200 Administrative control - no read back Contactor Enclosure/fuses/contactors/ miscellaneous parts $600 SCR of MOSFET Enclosure/fuses/solid-state devices/miscellaneous parts $700 Does not include IDIM/IDOM and cable costs

5. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 5 Bulk and Boost PS mods to run Q21201 at 0A in LCLS mode SLC modeLCLS mode

6. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 6 SLC modeLCLS mode Bulk PS mod to run Q21301 at 0A in LCLS mode

7. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 7 New magnet systems

8. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 8 MCOR12 < 30 ppm short term, < 1000 ppm long term New magnet systems

9. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 9

10. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 10 New magnet systems

11. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 11 SCOR6 10 to 80 ppm setting dependent, 1000 ppm long term MCOR12 < 30 ppm short term, < 1000 ppm long term Existing Magnets

12. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 12

13. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 13 Replace 12 SCOR6 with MCOR12

14. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 14 Existing magnets – Change PS from SCIOR6 to MCOR12 Option 1 – $28.2k. Replace all 12 SCOR6 with MCOR12, PS remain in alcove. 12 power modules, 12 programming modules, 1 interface board, 1 crate, miscellaneous parts. Reuse bulk PS and cables. Option 2 - $38k. Replace all 12 SCOR6 with MCOR12. Relocate all 12 to Sector 20 racks. Parts same as Option 1, plus bulk power supply and new cables. Option 3 - $21k. Replace 4 SCR6 with MCOR12 for 10Hz feedback. Install in alcove. 4 power modules, 4 programming modules, 1 interface board, 1 crate, miscellaneous parts, plus bulk PS. Reuse cables. Option 4 - $15k. Replace 4 SCOR6 with MCOR12 for 10Hz feedback. Install in Sector 20 rack. Same as Option 3, less bulk power supply, plus cables

15. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 15 Intermediate PS Hazard Analysis Bleeder resistors Across LF/HF filter capacitors PPS interface External Flammable liquids Trace amounts in electrolytic filters Hazard signs Labels on PS for voltage and heat hazards MPS interface In Ethernet chassis, open contact removes ON Soft-start Prevent input current surge Totally enclosed AC plug, cover over DC terminals Other components Non-flammable or fire retardant OtherUse listed components wherever possible and SLAC EEIP inspection prior to or after shipping

16. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 16 List of Potential Intermediate Power Supply Bidders Danfysik C/o GMW Associates 955 Industrial Road San Carlos, CA 94070 650-802-8292 sales@gmw.com EMI-Lambda C/o Tritek Solutions, Suite 4 1800 Wyatt Drive Santa Clara, Ca. 94054 Mr. Bret McDonald (408) 492-0400 X405 bretmcdonald@triteksoutions.com Dynapower Corporation 1020 Hinesburg Road P. O. Box 9210 South Burlington, VT 05407 802-652-1317 Attn: Adam M. Knudsen aknudsen@dynapower.com IE Power, Incorporated 12 Falconer Drive, Unit 15 Mississauga, Ontario Canada L5N 3L9 905-813-8900 Attn: Mr. Bob Holmes iepower@iepower.com Elgar Electronics Corporation 9250 Brown Deer Road San Diego, CA 92121 Ph - 858-458-0233 Grant Moore gmoore@elgar.com www.elgar.com Matsushada c/o BiRa Systems Incorporated 2410 Midtown Place, Suite A Albuquerque, New Mexico 87107 Phone: 505-881-8887 Mr. Phillip Biswell Email: phil@bira.comphil@bira.com

17. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 17 GMW Associates 955 Industrial Road San Carlos, CA 94070 650-802-8292 ian@gmw.com

18. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 18

19. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 19 Cable and Conductor Sizing Per 2005 NEC Basis – copper conductors, 90C insulation, max 45C ambient, no more than 3 conductors in a cable, cable tray fill per Article 392. Table 310-16 of NEC Power SupplyBasic Ampacity/DeratingConductor Size 25V, 375A375A/0.87 = 431A500kcmil 430A, use it 60V, 30A30A/0.87 = 34A#10AWG 40A, use #8AWG 40V, 12A12A/0.87 = 14A#18AWG 14A, use #12AWG

20. LCLS Sector 21 - BC1 Power Supply Design September 15, 2005 20 END !!!