A5047947756- Superconducting Materials and Applications
- Magnetic confinement fusion research
- Particle accelerators and beam dynamics
- Thermal Analysis in Power Transmission
- Fusion materials and technologies
- HVDC Systems and Fault Protection
- High voltage insulation and dielectric phenomena
- Physics of Superconductivity and Magnetism
- Spacecraft and Cryogenic Technologies
- Particle Accelerators and Free-Electron Lasers
- Nuclear Physics and Applications
- High-Voltage Power Transmission Systems
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Electromagnetic Launch and Propulsion Technology
- Synthesis and properties of polymers
- Advancements in Battery Materials
- Graphite, nuclear technology, radiation studies
- Vacuum and Plasma Arcs
- Metal and Thin Film Mechanics
- Electric Motor Design and Analysis
- Electrical Contact Performance and Analysis
- Nuclear Materials and Properties
- Frequency Control in Power Systems
Institute of Plasma Physics
2015-2024
Chinese Academy of Sciences
2015-2024
Jiangnan Industry Group (China)
2024
Hefei Institutes of Physical Science
2020-2023
Abstract The HTS current leads for the ITER project will be largest ever operated, with unprecedented currents, up to 68 kA and voltages, 14 kV. According agreement they provided in-kind by China. After an extensive development program at Hefei Institute of Plasma Physics (ASIPP), were designed qualified. following discusses main highlights this development, particular emphasis on description design different types their final qualification in dedicated cold tests nominal conditions.
To acquire higher dielectric strength of the insulation material, polyimide films are combined between two layers glass fiber tape reinforced epoxy resin, and formed into a `sandwich' structure composite tapes which directly wrapped on ITER Feeder high voltage potential components. But due to film brought use, bounding layer is reduced by certain degree, finally influences Interlaminar Shear Strength this type material. This paper introduces interlaminar shear laminate manufactured...
High Temperature Superconductor (HTS) current leads provide the transition of transfer system from room temperature to 4.5 K. For ITER superconducting magnet system, a total 60 HTS are required, with nominal capacity 2.64 MA. By use significant power savings can be achieved during operation system. Based on functional specification by Organization (IO), ASIPP manufactured and tested first pair trial for coils. The cryogenic test these 68 kA 52 was performed at using cryoplant supplies EAST...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> The International Thermonuclear Experimental Reactor (ITER) superconducting magnet system requires current supplies from 10 kA to 68 kA. components relating the electrical power and cryogens through warm-cold barrier ITER magnets are so-called feeders. In total there 31 such feeders for system, 9 of them necessary toroidal field called TF Each feeder consists three main units: In-Cryostat Feeder...
The ITER Organization (IO) and the Institute of Plasma Physics at Chinese Academy Sciences (ASIPP) are jointly developing 68 kA current leads using High Temperature Superconductors for superconducting Toroidal Field (TF) magnet system International Thermonuclear Experimental Reactor, ITER. proposed design consists a conventional helium cooled heat exchanger operating between 65 K 320 an HTS module covering low temperature end Bi-2223 tapes. first lead prototypes will be tested in EAST...
The ITER Organization (IO) and the Institute of Plasma Physics at Chinese Academy Sciences (ASIPP) are jointly developing design 10 kA Current Leads (CL) using High Temperature Superconductors (HTS) for Correction Coil (CC) Magnet System International Thermonuclear Experimental Reactor, ITER. proposed combines a conventional helium cooled heat exchanger operating between 65 K 300 with HTS module covering low temperature end Bi-2223 tapes. details test results obtained on first prototype lead...
The Toroidal Field (TF) coil feeder for the International Thermonuclear Experimental Reactor (ITER) contains a pair of NbTi superconducting cable-in-conduit conductor (CICC) busbars carrying current up to 68 kA. busbar is divided into different segments. Several joints are used connect them electrically. In order minimize heat load cryo-system feeder, DC resistance joint connection must be lower than 2 , and pressure head loss also low enough. Meanwhile, structure should convenient assembly...
In the past 4 years, Institute of Plasma Physics, Chinese Academy Science (ASIPP) had developed and tested three-type (TF-type 68 kA, PF/CS-type 52kA, CC-type 10 kA) trial HTS current leads for ITER. According to Procurement Agreement (PA) between ITER international organization (IO) China Domestic Agency (CNDA), a large scale feeder system including key components, leads, will step into qualification fabrication soon in this year. Series products commence on manufacturing from next The...
As an important method of quality confirmation for the ITER Feeder system insulated components, high voltage test at Paschen condition need to be carried out once after these components are manufactured. The is much more efficient detecting micro cracks or defects in solid multi-composite polymer insulation materials than conventional done atmospheric condition, and almost without any damage qualified components. For this purpose task agreement R&D with IO, a cryogenic vacuum facility, which...
The Procurement of the feeder system for International Thermonuclear Experimental Reactor (ITER) tokamak device started in ASIPP (China) 2006. relevant tasks structural design and analysis have now come to an end, but R&D activities 2009 critical components key technology are still ongoing. Following signature Arrangement between China ITER Organization (IO) 2010, a great number been launched with purpose testing verifying original design, leading changes optimizations. This paper mainly...
According to the procurement agreement with International Thermonuclear Experimental Reactor project, Institute of Plasma Physics, Chinese Academy Sciences (ASIPP) in China is responsible for construction and performance testing 31 sets feeder systems, which contain also 60 high-temperature superconducting (HTS) current leads. In 2014/2015, three pairs prototype leads different types are being built tested. A first pair correction coil (CC) type, 10-kA lead prototypes was cold tested ASIPP...
An experimental Paschen test setup has been established to analyze the quality of ITER current lead (CL) insulation and extend research on Paschen's law under various conditions. Insulation problems can destroy a machine if discharge is triggered by an defect that caused faulty manufacturing, electromagnetic force, thermal stress load with certain degree vacuum helium or pipe leakage. The results show CL mock-up worked well normal temperature pressure. Besides, also in conditions at 80 K...
The International Thermonuclear Experimental Reactor (ITER) feeder procurement is now well underway. design has been improved by the teams at ITER Organization (IO) and Institute of Plasma Physics, Chinese Academy Sciences (ASIPP) in last 2 years along with analyses qualification activities. being progressively finalized. In addition, preparation manufacturing are scheduled ASIPP. This paper mainly presents design, overview status integration on magnet feeders.
The nuclear radiation levels, magnetic fields and general access restrictions in the ITER Tokamak are such that it is undesirable to place remote control helium supply valves close coils. Coil Terminal Boxes (CTB), which further away from coils, therefore designed for easy contain as much possible components needing maintenance, cryo-valves. CTBs also house electrical cold-warm transitions with HTS current leads NbTi feeder busbars. Also most of instrumentation located CTB. Based on...