Upgrading the TFTR Transrex Power Supplies

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In order to provide improved and expanded experimental capabilities, the existing Transrex power supplies at PPPL are to be upgraded and modernized. Each of the 39 power supplies consists of two six pulse silicon controlled rectifier sections forming a twelve pulse power supply. The first modification is to split each supply into two independent six pulse supplies by replacing the existing obsolete twelve pulse firing generator with two commercially available six pulse firing generators. The second change replaces the existing control link with a faster system, with greater capacity, which will allow for independent control of all 78 power supply ... continued below

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Lawson, J. E.; Marsala, R.; Ramakrishnan, S.; Zhao, X. & Sichta, P. May 29, 2009.

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In order to provide improved and expanded experimental capabilities, the existing Transrex power supplies at PPPL are to be upgraded and modernized. Each of the 39 power supplies consists of two six pulse silicon controlled rectifier sections forming a twelve pulse power supply. The first modification is to split each supply into two independent six pulse supplies by replacing the existing obsolete twelve pulse firing generator with two commercially available six pulse firing generators. The second change replaces the existing control link with a faster system, with greater capacity, which will allow for independent control of all 78 power supply sections. The third change replaces the existing Computer Automated Measurement and Control (CAMAC) based fault detector with an Experimental Physics and Industrial Control System (EPICS) compatible unit, eliminating the obsolete CAMAC modules. Finally the remaining relay logic and interfaces to the "Hardwired Control System" will be replaces with a Programmable Logic Controller (PLC).

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  • 23rd Symposium on Fusion Engineering, San Diego, CA May 31-June 4, 2009

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  • Report No.: PPPL-4445
  • Grant Number: DE-ACO2-09CH11466
  • Office of Scientific & Technical Information Report Number: 963984
  • Archival Resource Key: ark:/67531/metadc933899

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  • May 29, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 13, 2016, 7:36 p.m.

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Lawson, J. E.; Marsala, R.; Ramakrishnan, S.; Zhao, X. & Sichta, P. Upgrading the TFTR Transrex Power Supplies, article, May 29, 2009; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc933899/: accessed June 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.