PEP-II Large Power Supplies Rebuild Program at SLAC

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Seven large power supplies (LGPS) with output ratings from 72kW to 270kW power PEP-II quad magnets in the electron-positron collider region. These supplies have posed serious maintenance and reliability problems since they were installed in 1997, resulting in loss of accelerator availability. A redesign/rebuild program was undertaken by the SLAC Power Conversion Department. During the 2004 summer shutdown all the control circuits in these supplies were redesigned and replaced. A new PWM control board, programmable logic controller, and touch panel have been installed to improve LGPS reliability, and to make troubleshooting easier. In this paper we present the details of ... continued below

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3 pages

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Bellomo, P.; Lipari, J.J.; de Lira, A.C.; Rafael, F.S. & /SLAC May 17, 2005.

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Description

Seven large power supplies (LGPS) with output ratings from 72kW to 270kW power PEP-II quad magnets in the electron-positron collider region. These supplies have posed serious maintenance and reliability problems since they were installed in 1997, resulting in loss of accelerator availability. A redesign/rebuild program was undertaken by the SLAC Power Conversion Department. During the 2004 summer shutdown all the control circuits in these supplies were redesigned and replaced. A new PWM control board, programmable logic controller, and touch panel have been installed to improve LGPS reliability, and to make troubleshooting easier. In this paper we present the details of this rebuilding program and results.

Physical Description

3 pages

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  • Presented at Particle Accelerator Conference (PAC 05), , 5/16/2005-5/20/2005

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  • Report No.: SLAC-PUB-11182
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 890822
  • Archival Resource Key: ark:/67531/metadc882644

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 17, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 30, 2016, 4:19 p.m.

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Bellomo, P.; Lipari, J.J.; de Lira, A.C.; Rafael, F.S. & /SLAC. PEP-II Large Power Supplies Rebuild Program at SLAC, article, May 17, 2005; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc882644/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.