A Fusing Switch for Fault Suppression in the SNS High Voltage Converter Modulators

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Description

The High Voltage Converter Modulators (HVCMs) at the Spallation Neutron Source (SNS) have operated in excess of a combined 250,000 hours. Performance and reliability improvements to the HVCM are ongoing to increase modulator availability as accelerator system demands increase. There is a relatively large amount of energy storage in the HVCMs, {approx}180 kJ. This energy has the potential to dump into unsuppressed faults, cause damage, and increase the time to repair. The 'fusing switch' concept involves isolation of this stored energy from the location of the most common faults. This paper introduces this concept and its application to the HVCMs.

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4 pages

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Kemp, Mark A.; Burkhart, Craig; Nguyen, Minh N.; /SLAC; Anderson, David E. & Ridge, /Oak August 3, 2009.

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Description

The High Voltage Converter Modulators (HVCMs) at the Spallation Neutron Source (SNS) have operated in excess of a combined 250,000 hours. Performance and reliability improvements to the HVCM are ongoing to increase modulator availability as accelerator system demands increase. There is a relatively large amount of energy storage in the HVCMs, {approx}180 kJ. This energy has the potential to dump into unsuppressed faults, cause damage, and increase the time to repair. The 'fusing switch' concept involves isolation of this stored energy from the location of the most common faults. This paper introduces this concept and its application to the HVCMs.

Physical Description

4 pages

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  • Presented at 17th IEEE International Pulsed Power Conference, Washington, DC, 29 Jun - 2 Jul 2009

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  • Report No.: SLAC-PUB-13708
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 962106
  • Archival Resource Key: ark:/67531/metadc926322

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Office of Scientific & Technical Information Technical Reports

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  • August 3, 2009

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 15, 2016, 3:27 p.m.

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Kemp, Mark A.; Burkhart, Craig; Nguyen, Minh N.; /SLAC; Anderson, David E. & Ridge, /Oak. A Fusing Switch for Fault Suppression in the SNS High Voltage Converter Modulators, article, August 3, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc926322/: accessed May 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.