The installation, testing and performance on the jet coils of the enhanced radial field amplifier (ERFA)

S.R. Shaw, D. Rendell, A. Arenal, D. Ganuza, M. Zulaika, M. Barp

Research output: Contribution to journalArticle


The ERFA is a major part of the upgrade to the plasma vertical stabilisation system for JET. As well as improvements to the plasma controller, there was a requirement for a new power supply with increased voltage and current capability over its predecessor the Fast Radial Field Amplifier (FRFA). The ERFA had to be factory tested, installed at JET, power and signal connections made, all signals tested and then installed adjacent to FRFA. The connection to the JET coils had to be achieved in a planned 7-week pause in operation dedicated to this installation activity and perform to its full capability from the JET restart. The ERFA project achieved all of its aims and, following a minor upgrade, met or exceeded the performance specifications. This paper covers the site installation, signal testing, and power tests on dummy load leading to the final acceptance tests on the JET coils. © 2011 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)2920 - 2923
Number of pages4
JournalFusion Engineering and Design
Issue number12
Publication statusPublished - Dec 2011
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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