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Thomas Rummel

Also published under: T. Rummel, Th Rummel

Publications
36
Citations
291
Publications by Year
20022024
Co-Authors:
Show All Co-Authors (105)
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Thomas Rummel

Also published under: T. Rummel, Th Rummel

Affiliation

Max Planck Institute for Plasma Physics
Euratom Association
Greifswald, Germany

Publication Topics

Biography

Thomas Rummel has studied electrical engineering and received the Dipl.Ing. and Dr.Ing. degrees from the University of Magdeburg, Magdeburg, Germany, in 1989 and 1996, respectively.,In 1998, he joined the Max Planck Institute for Plasma Physics (IPP), Garching, Germany. Since 1998, he has been working at the IPP Greifswald, Greifswald, Germany, for W7-X in the fields of superconducting magnets, magnet protection, and magnet power supplies. Since 2015, he has also been the Head of the Magnet and Cryogenics Division, W7-X, which enlarged the working field to the management of cryogenic projects.(Based on document published on 29 January 2020).
Publications
36
Citations
291
Publications by Year
20022024
Co-Authors:
Show All Co-Authors (105)
Author's Published Works

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Thermo-Hydraulic Calculations on W7-X Coils for Updated Quench Detection Parameters

Konrad Risse;Monika Lewandowska;Aleksandra Dembkowska;Thomas Rummel;Hans-Stephan Bosch;the W7-X Team

IEEE Transactions on Applied Superconductivity
Year: 2024 | Volume: 34, Issue: 5 | Journal Article |
Cited by: Papers (1)
The Wendelstein 7-X stellarator (W7-X), one of the largest stellarator fusion experiments, is in operation since 2015 at the Max Planck Institute for Plasma Physics (IPP) in Greifswald. W7-X has reached the final status in 2022 with actively cooled in-vessel components. The superconducting magnet system consist of 50 non-planar and 20 planar coils. The superconducting coils as well as the connecti...Show More

Thermo-Hydraulic Calculations on W7-X Coils for Updated Quench Detection Parameters

Konrad Risse;Monika Lewandowska;Aleksandra Dembkowska;Thomas Rummel;Hans-Stephan Bosch;the W7-X Team

Year: 2024 | Volume: 34, Issue: 5 | Journal Article |

Implementation and First Operational Experiences With the High Voltage In-Service-Tests on the Superconducting Magnet System of Wendelstein 7-X

Frank Füllenbach;Thomas Rummel;Konrad Risse;Thomas Mönnich;Hans-Stephan Bosch;W7-X Team

IEEE Transactions on Applied Superconductivity
Year: 2020 | Volume: 30, Issue: 4 | Journal Article |
A hypothetical ground fault in the superconducting (sc) magnet system of Wendelstein 7-X would shift the midpoint of the grounding system and therefore increase the voltage to ground during a fast discharge of the sc magnet system. As this voltage could endanger the high voltage integrity of the sc magnet system, an In-Service-Test system has been developed to monitor the insulation of the sc magn...Show More

Implementation and First Operational Experiences With the High Voltage In-Service-Tests on the Superconducting Magnet System of Wendelstein 7-X

Frank Füllenbach;Thomas Rummel;Konrad Risse;Thomas Mönnich;Hans-Stephan Bosch;W7-X Team

Year: 2020 | Volume: 30, Issue: 4 | Journal Article |

Commissioning of the Wendelstein 7-X in Vessel Control Coils

Frank Füllenbach;K. Risse;T. Rummel;P. V. Eeten;A. Carls;O. Volzke;M. Haas;H.-S. Bosch

IEEE Transactions on Plasma Science
Year: 2020 | Volume: 48, Issue: 7 | Journal Article |
Cited by: Papers (1)
The magnet system of the stellarator fusion device Wendelstein 7-X (W7-X) is composed of three different groups of coil systems. The main magnetic field is created by a superconducting magnet system that is accompanied by two sets of normal conducting coil groups, the trim coils positioned outside of the cryostat and the control coils (CCs) inside the plasma vessel. The CC system consists of ten 3...Show More

Commissioning of the Wendelstein 7-X in Vessel Control Coils

Frank Füllenbach;K. Risse;T. Rummel;P. V. Eeten;A. Carls;O. Volzke;M. Haas;H.-S. Bosch

Year: 2020 | Volume: 48, Issue: 7 | Journal Article |

Operation of W7-X With an Inertially Cooled Divertor—On the Way to Steady State Operation

Hans-Stephan Bosch;Simppa Äkäslompolo;Rudolf Brakel;Victor Bykov;Peter Drewelow;Joachim Geiger;Marcin Jakubowsky;Michael Nagel;Dirk Naujoks;Konrad Risse;Thomas Rummel;Paul van Eeten

IEEE Transactions on Plasma Science
Year: 2020 | Volume: 48, Issue: 6 | Journal Article |
Cited by: Papers (4)
The superconducting stellarator Wendelstein 7-X has completed the first three experimental phases, the first one with a limiter only and two phases with an inertially cooled carbon divertor configuration. The main mission of the latter two phases (the last one with two scraper elements) was to pave the way for the planned steady-state operation with high-power plasmas and a steady-state divertor. ...Show More

Operation of W7-X With an Inertially Cooled Divertor—On the Way to Steady State Operation

Hans-Stephan Bosch;Simppa Äkäslompolo;Rudolf Brakel;Victor Bykov;Peter Drewelow;Joachim Geiger;Marcin Jakubowsky;Michael Nagel;Dirk Naujoks;Konrad Risse;Thomas Rummel;Paul van Eeten

Year: 2020 | Volume: 48, Issue: 6 | Journal Article |

Upgrade of the Cryogenic Systems of Wendelstein 7-X

Thomas Rummel;Michael Nagel;Michael Pietsch;Sylvio Raatz;C. P. Dhard;Andreas Braatz;Marko Ihrke;Hans-Stephan Bosch

IEEE Transactions on Plasma Science
Year: 2020 | Volume: 48, Issue: 6 | Journal Article |
Cited by: Papers (1)
The Wendelstein 7-X experimental device has completed the third plasma operation campaign in November 2018. The running, two-year shut down phase is being used to install new diagnostics, new in-vessel-components (steady-state divertor and cryopumps), and their auxiliary supply systems. In particular, the installation of the ten cryopumps requires a substantial upgradation of the cryosystems. The ...Show More

Upgrade of the Cryogenic Systems of Wendelstein 7-X

Thomas Rummel;Michael Nagel;Michael Pietsch;Sylvio Raatz;C. P. Dhard;Andreas Braatz;Marko Ihrke;Hans-Stephan Bosch

Year: 2020 | Volume: 48, Issue: 6 | Journal Article |

Spark Detection and Search for High-Voltage Paschen Leaks in a Large Superconducting Coil System

Juergen Baldzuhn;Hans Stephan Bosch;Kirk Gallowski;Heinz Grote;Thomas Klinger;Christian Kopplin;Michael Nagel;Kerstin Rummel;Thomas Rummel;Konrad Risse;Felix Schauer;Olaf Volzke;Lutz Wegener;Andreas Werner;Michael Weise

IEEE Transactions on Plasma Science
Year: 2019 | Volume: 47, Issue: 11 | Journal Article |
Cited by: Papers (2)
The plasma fusion experiment Wendelstein 7-X (W7-X) uses a system of 50 nonplanar and 20 planar superconducting coils. These coils produce the magnetic field that is required to confine the plasma. Magnetic flux densities up to 3 tesla can be reached in the center of the plasma. Supercritical helium is used to cool down the coils to operating temperatures below 4 K. The coils are specified for cur...Show More

Spark Detection and Search for High-Voltage Paschen Leaks in a Large Superconducting Coil System

Juergen Baldzuhn;Hans Stephan Bosch;Kirk Gallowski;Heinz Grote;Thomas Klinger;Christian Kopplin;Michael Nagel;Kerstin Rummel;Thomas Rummel;Konrad Risse;Felix Schauer;Olaf Volzke;Lutz Wegener;Andreas Werner;Michael Weise

Year: 2019 | Volume: 47, Issue: 11 | Journal Article |

Operation Experience of the Wendelstein 7-X High-Temperature Superconductor Current Leads

Reinhard Heller;Holger Bau;Michael Nagel;Thomas Rummel

IEEE Transactions on Applied Superconductivity
Year: 2019 | Volume: 29, Issue: 6 | Journal Article |
Cited by: Papers (2)
The fusion device Wendelstein 7-X is a modular stellarator, which went into operation at the Greifswald branch of the Max-Planck-Institut für Plasmaphysik in December 2015. The main component is the superconducting magnet system that consists of 50 nonplanar and 20 planar coils, 14 high-temperature superconductor (HTS) current leads (CLs), and more than 100 superconducting bus bars. The HTS CLs wi...Show More

Operation Experience of the Wendelstein 7-X High-Temperature Superconductor Current Leads

Reinhard Heller;Holger Bau;Michael Nagel;Thomas Rummel

Year: 2019 | Volume: 29, Issue: 6 | Journal Article |

Spark Detection and Search for High-Voltage Paschen Leaks in a Large Superconducting Coil System

Juergen Baldzuhn;Hans Stephan Bosch;Kirk Gallowski;Heinz Grote;Thomas Klinger;Christian Kopplin;Michael Nagel;Kerstin Rummel;Thomas Rummel;Konrad Risse;Felix Schauer;Olaf Volzke;Lutz Wegener;Andreas Werner;Michael Weise

2018 28th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)
Year: 2018 | Conference Paper |
Cited by: Papers (1)
The plasma fusion experiment Wendelstein 7-X (W7-X) uses a system of 50 non-planar and 20 planar superconducting coils. These coils produce the magnetic field that is required to confine the plasma. Magnetic flux densities up to 3 T can be reached in the center of the plasma. Supercritical helium is used to cool down the coils to operating temperatures <; 4K. The currents in the coils can reach up...Show More

Spark Detection and Search for High-Voltage Paschen Leaks in a Large Superconducting Coil System

Juergen Baldzuhn;Hans Stephan Bosch;Kirk Gallowski;Heinz Grote;Thomas Klinger;Christian Kopplin;Michael Nagel;Kerstin Rummel;Thomas Rummel;Konrad Risse;Felix Schauer;Olaf Volzke;Lutz Wegener;Andreas Werner;Michael Weise

Year: 2018 | Conference Paper |

Engineering Challenges in W7-X: Lessons Learned and Status for the Second Operation Phase

H.-S. Bosch;T. Andreeva;R. Brakel;T. Bräuer;D. Hartmann;A. Holtz;T. Klinger;H. Laqua;M. Nagel;D. Naujoks;K. Risse;A. Spring;T. Sunn Pedersen;T. Rummel;P. van Eeten;A. Werner;R. Wolf

IEEE Transactions on Plasma Science
Year: 2018 | Volume: 46, Issue: 5 | Journal Article |
Cited by: Papers (20)
In 2015, the optimized stellarator Wendelstein 7-X stellarator (W7-X) started with operation. The main objective of W7-X is the demonstration of the integrated reactor potential of the optimized stellarator line. An important element of this mission is the achievement of high heating power and high confinement in the steady-state operation. The approach to this mission is the following three steps...Show More

Engineering Challenges in W7-X: Lessons Learned and Status for the Second Operation Phase

H.-S. Bosch;T. Andreeva;R. Brakel;T. Bräuer;D. Hartmann;A. Holtz;T. Klinger;H. Laqua;M. Nagel;D. Naujoks;K. Risse;A. Spring;T. Sunn Pedersen;T. Rummel;P. van Eeten;A. Werner;R. Wolf

Year: 2018 | Volume: 46, Issue: 5 | Journal Article |

Challenges for the Wendelstein 7-X Magnet Systems During the Next Operation Phase

Thomas Rummel;Konrad Risse;Michael Nagel;Thomas Mönnich;Frank Füllenbach;Hans-Stephan Bosch

IEEE Transactions on Plasma Science
Year: 2018 | Volume: 46, Issue: 5 | Journal Article |
Cited by: Papers (6)
During the first operation phase OP1.1 of Wendelstein 7-X, the magnet systems were not operated up to its maximum capabilities. During the next operation phase OP1.2, a big step in the direction to a full current operation will be taken. The superconducting magnet system consists of the two different coil types: the nonplanar coils (NPCs) and the planar coils (PLCs). With respect to OP1.1, the NPC...Show More

Challenges for the Wendelstein 7-X Magnet Systems During the Next Operation Phase

Thomas Rummel;Konrad Risse;Michael Nagel;Thomas Mönnich;Frank Füllenbach;Hans-Stephan Bosch

Year: 2018 | Volume: 46, Issue: 5 | Journal Article |

Study of the Hot-Spot Temperature During Quench in the Nonplanar Coils of W7-X

Kamil Sedlak;Pierluigi Bruzzone;Thomas Rummel;Michael Nagel

IEEE Transactions on Applied Superconductivity
Year: 2018 | Volume: 28, Issue: 3 | Journal Article |
Cited by: Papers (4)
The quench protection system of the nonplanar coils of the Wendelstein 7-X stellarator was laid out over 15 years ago. At that time, the assessment of the hot-spot temperature by a basic adiabatic model was done using design values for material and operation parameters. After the operating experience in 2016, the hot-spot temperature is reassessed with the thermal-hydraulic program THEA, using the...Show More

Study of the Hot-Spot Temperature During Quench in the Nonplanar Coils of W7-X

Kamil Sedlak;Pierluigi Bruzzone;Thomas Rummel;Michael Nagel

Year: 2018 | Volume: 28, Issue: 3 | Journal Article |

Commissioning Results of the Superconducting Magnet System of Wendelstein 7-X

Thomas Rummel;Michael Nagel;Victor Bykov;Dietrich Birus;Andre Carls;Chandra P. Dhard;Eric Köster;Thomas Mönnich;Konrad Riße;Matthias Schneider;Hans-Stephan Bosch

IEEE Transactions on Applied Superconductivity
Year: 2017 | Volume: 27, Issue: 4 | Journal Article |
Cited by: Papers (5)
The superconducting fusion device Wendelstein 7-X went into operation in December 2015. One of the most important steps was the commissioning of the superconducting magnet system. It consists of 70 superconducting coils, 14 high temperature superconductor (HTS) current leads, and more than 100 superconducting bus bars. The system is divided into seven electrical circuits with ten coils, associated...Show More

Commissioning Results of the Superconducting Magnet System of Wendelstein 7-X

Thomas Rummel;Michael Nagel;Victor Bykov;Dietrich Birus;Andre Carls;Chandra P. Dhard;Eric Köster;Thomas Mönnich;Konrad Riße;Matthias Schneider;Hans-Stephan Bosch

Year: 2017 | Volume: 27, Issue: 4 | Journal Article |

Overview and Status of Commissioning of the Wendelstein 7-X Magnet Power Supplies

Thomas Rummel;Thomas Moennich;Frank Fuellenbach;Tom Murray

IEEE Transactions on Plasma Science
Year: 2016 | Volume: 44, Issue: 9 | Journal Article |
Cited by: Papers (3)
There are three main magnet systems in Wendelstein 7-X (W7-X), comprising in total 85 coils arranged in 22 independent circuits fed by steady-state power supplies. The superconducting coil system creates the main magnetic field and consists of 70 coils, grouped in 7 electrical circuits with 10 coils each with an inductance of ~1 H. Each circuit is fed by one power supply with a maximum current of ...Show More

Overview and Status of Commissioning of the Wendelstein 7-X Magnet Power Supplies

Thomas Rummel;Thomas Moennich;Frank Fuellenbach;Tom Murray

Year: 2016 | Volume: 44, Issue: 9 | Journal Article |

Wendelstein 7-X–Commissioning of the Superconducting Magnet System

Konrad Risse;Dietrich Birus;Stephan Bosch;Victor Bykov;André Carls;Chandra P. Dhard;Joris Fellinger;Thomas Mönnich;Michael Nagel;Matthias Otte;Thomas Rummel;Matthias Schneider

IEEE Transactions on Applied Superconductivity
Year: 2016 | Volume: 26, Issue: 4 | Journal Article |
Cited by: Papers (9)
The Wendelstein 7-X stellarator (W7-X), one of the largest stellarator fusion experiments, is presently being taken into operation at the Max Planck Institute for Plasma Physics in Greifswald. The main objective of the experiment is to prove the reactor relevance of the optimized stellarator concept. The W7-X experiment has a superconducting magnet system with 50 nonplanar and 20 planar coils grou...Show More

Wendelstein 7-X–Commissioning of the Superconducting Magnet System

Konrad Risse;Dietrich Birus;Stephan Bosch;Victor Bykov;André Carls;Chandra P. Dhard;Joris Fellinger;Thomas Mönnich;Michael Nagel;Matthias Otte;Thomas Rummel;Matthias Schneider

Year: 2016 | Volume: 26, Issue: 4 | Journal Article |

Wendelstein 7-X magnet power supplies: Overview and status of commissioning

Thomas Rummel;Thomas Moennich;Frank Fuellenbach;Tom Murray

2015 IEEE 26th Symposium on Fusion Engineering (SOFE)
Year: 2015 | Conference Paper |
Cited by: Papers (1)
There are three main magnet systems in Wendelstein 7-X, comprising in total 85 coils arranged in 22 independent circuits fed by steady state power supplies. The superconducting coil system creates the main magnetic field and consists of 70 coils, grouped in seven electrical circuits with ten coils each with an inductance of about one Henry. Each circuit is fed by one power supply with a maximum cu...Show More

Wendelstein 7-X magnet power supplies: Overview and status of commissioning

Thomas Rummel;Thomas Moennich;Frank Fuellenbach;Tom Murray

Year: 2015 | Conference Paper |

Current Leads for the Wendelstein 7-X Superconducting Magnet System

Thomas Rummel;Felix Schauer;Thomas Moennich;Klaus-Peter Buscher;Walter H. Fietz;Reinhard Heller

IEEE Transactions on Plasma Science
Year: 2014 | Volume: 42, Issue: 8 | Journal Article |
Cited by: Papers (4)
The stellarator fusion experiment Wendelstein 7-X (W7-X) is presently under assembly at the Greifswald branch of the Max Planck Institute for Plasma Physics, Germany. The W7-X superconducting magnet system basically consists of 50 nonplanar and 20 planar coils, including the interconnecting bus bars, and the support structure. The seven electrical circuits with 10 coils each in a series are suppli...Show More

Current Leads for the Wendelstein 7-X Superconducting Magnet System

Thomas Rummel;Felix Schauer;Thomas Moennich;Klaus-Peter Buscher;Walter H. Fietz;Reinhard Heller

Year: 2014 | Volume: 42, Issue: 8 | Journal Article |

Wendelstein 7-X Trim Coils—Component Safety Aspects and Commissioning Strategy

Konrad Risse;Frank Füllenbach;Thomas Rummel;Michael Mardenfeld;Xin Zhao

IEEE Transactions on Plasma Science
Year: 2014 | Volume: 42, Issue: 3 | Journal Article |
Cited by: Papers (4)
The stellarator fusion experiment Wendelstein 7-X (W7-X) is currently under construction at the Max-Planck-Institut für Plasmaphysik in Greifswald, Germany. Five normal conducting trim coils have been designed to allow for fine tuning of the main magnetic field during plasma operation. To limit the mechanical stresses in the coil, the proper functioning of the coil cooling system must be carefully...Show More

Wendelstein 7-X Trim Coils—Component Safety Aspects and Commissioning Strategy

Konrad Risse;Frank Füllenbach;Thomas Rummel;Michael Mardenfeld;Xin Zhao

Year: 2014 | Volume: 42, Issue: 3 | Journal Article |

Design and Prototype of the High Voltage In-Service-Tests on the Superconducting Magnet System of Wendelstein 7-X

F. Füllenbach;Th. Rummel;Th. Mönnich;E. Köster

IEEE Transactions on Applied Superconductivity
Year: 2014 | Volume: 24, Issue: 3 | Journal Article |
Cited by: Papers (1)
The stresses induced during the energizing and de-energizing process of the Wendelstein 7-X super conducting magnet system could cause cracks in the embedding of the winding packages and consequently a ground fault that would not be detected during normal operation as the operating voltage of the magnet is system is too low. With a ground fault present during a fast discharge, the middle point gro...Show More

Design and Prototype of the High Voltage In-Service-Tests on the Superconducting Magnet System of Wendelstein 7-X

F. Füllenbach;Th. Rummel;Th. Mönnich;E. Köster

Year: 2014 | Volume: 24, Issue: 3 | Journal Article |

The Wendelstein 7-X Trim Coil System

Thomas Rummel;Konrad Riße;Frank Füllenbach;Matthias Köppen;Johann Kißlinger;Tom Brown;Ron Hatcher;Stephen Langish;Mike Mardenfeld;Hutch Neilson

IEEE Transactions on Applied Superconductivity
Year: 2014 | Volume: 24, Issue: 3 | Journal Article |
Cited by: Papers (14)
The magnet system of the fusion experimental device Wendelstein 7-X (W7-X) contains superconducting as well as normal conducting coils. Seventy superconducting coils are forming the steady state main field to confine the plasma. Inside of the plasma vessel, ten control coils, made of copper, will be placed to modify the strike points of the plasma at the divertor. In addition, a set of five normal...Show More

The Wendelstein 7-X Trim Coil System

Thomas Rummel;Konrad Riße;Frank Füllenbach;Matthias Köppen;Johann Kißlinger;Tom Brown;Ron Hatcher;Stephen Langish;Mike Mardenfeld;Hutch Neilson

Year: 2014 | Volume: 24, Issue: 3 | Journal Article |

Wendelstein 7-X trim coils — Component safety aspects and commissioning strategy

K. Risse;F. Füllenbach;T. Rummel;M. Mardenfeld;X. Zhao

2013 IEEE 25th Symposium on Fusion Engineering (SOFE)
Year: 2013 | Conference Paper |
Cited by: Papers (1)
The stellarator fusion experiment Wendelstein 7-X (W7-X) is currently under construction at the Max-PlanckInstitut für Plasmaphysik in Greifswald (IPP), Germany. Five normal conducting trim coils have been designed to allow for fine tuning of the main magnetic field during plasma operation. To limit the mechanical stress in the coil the proper function of the coil cooling system must be carefully ...Show More

Wendelstein 7-X trim coils — Component safety aspects and commissioning strategy

K. Risse;F. Füllenbach;T. Rummel;M. Mardenfeld;X. Zhao

Year: 2013 | Conference Paper |

The current leads of the Wendelstein 7-X superconducting magnet system

T. Rummel;F. Schauer;T. Moennich;K.-P. Buscher;W. H. Fietz;R. Heller

2013 IEEE 25th Symposium on Fusion Engineering (SOFE)
Year: 2013 | Conference Paper |
Cited by: Papers (2)
The stellarator fusion experiment Wendelstein 7-X (W7-X) is presently under assembly at the Greifswald branch of the Max Planck Institute for Plasma Physics (IPP), Germany. The W7-X superconducting magnet system basically consists of 50 non planar and 20 planar coils including the interconnecting bus bars, and the support structure. The seven electrical circuits with ten coils each in series, are ...Show More

The current leads of the Wendelstein 7-X superconducting magnet system

T. Rummel;F. Schauer;T. Moennich;K.-P. Buscher;W. H. Fietz;R. Heller

Year: 2013 | Conference Paper |

The Superconducting Magnet System of the Stellarator Wendelstein 7-X

Thomas Rummel;Konrad Ribe;Gunnar Ehrke;Kerstin Rummel;Andre John;Thomas Monnich;Klaus-Peter Buscher;Walter H. Fietz;Reinhard Heller;Olaf Neubauer;Anatoly Panin

IEEE Transactions on Plasma Science
Year: 2012 | Volume: 40, Issue: 3 | Journal Article |
The stellarator fusion experimental device Wendelstein 7-X (W7-X) is presently under assembly at the Greifswald branch of the Max-Planck-Institut für Plasmaphysik, Germany. The superconducting magnet system consists of 50 nonplanar coils, 20 planar coils, a superconducting bus system, and 14 current leads. It is organized in seven electrical circuits with ten coils, the bus system for the intercon...Show More

The Superconducting Magnet System of the Stellarator Wendelstein 7-X

Thomas Rummel;Konrad Ribe;Gunnar Ehrke;Kerstin Rummel;Andre John;Thomas Monnich;Klaus-Peter Buscher;Walter H. Fietz;Reinhard Heller;Olaf Neubauer;Anatoly Panin

Year: 2012 | Volume: 40, Issue: 3 | Journal Article |

The Trim Coils for the Wendelstein 7-X Magnet System

Thomas Rummel;Konrad Risze;Johann Kiszlinger;Matthias Koppen;Frank Fullenbach;Hutch Neilson;Tom Brown;Subrahmanya Ramakrishnan

IEEE Transactions on Applied Superconductivity
Year: 2012 | Volume: 22, Issue: 3 | Journal Article |
Cited by: Papers (20)
The magnet system of the fusion experiment Wendelstein 7-X (W7-X) consists of superconducting as well as normal conducting coils. 50 non planar superconducting coils are forming the main field, 20 planar superconducting coils allow varying the shape of the plasma. Inside of the plasma vessel 10 normal conducting control coils will be placed to modify the strike points of the plasma at the divertor...Show More

The Trim Coils for the Wendelstein 7-X Magnet System

Thomas Rummel;Konrad Risze;Johann Kiszlinger;Matthias Koppen;Frank Fullenbach;Hutch Neilson;Tom Brown;Subrahmanya Ramakrishnan

Year: 2012 | Volume: 22, Issue: 3 | Journal Article |

Feasibility Study of a High Voltage In-Service-Tests on the Superconducting Magnet System of Wendelstein 7-X

F. Fullenbach;Th. Rummel;Th. Monnich

IEEE Transactions on Applied Superconductivity
Year: 2012 | Volume: 22, Issue: 3 | Journal Article |
Cited by: Papers (2)
During the energizing and de-energizing process of the Wendelstein 7-X magnet system, the forces induced in the superconducting coils could lead to stresses in the insulation of the coils, the interconnecting bus system, the current leads and the mechanical support structure. Such stress could cause a ground fault that would not be detected during normal operation. In normal condition the voltage ...Show More

Feasibility Study of a High Voltage In-Service-Tests on the Superconducting Magnet System of Wendelstein 7-X

F. Fullenbach;Th. Rummel;Th. Monnich

Year: 2012 | Volume: 22, Issue: 3 | Journal Article |

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