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Design, Assembly, and Commissioning of a Cryogenic DC Current Transformer Designed for Measuring Currents of up to 80 kA
Design, Assembly, and Commissioning of a Cryogenic DC Current Transformer Designed for Measuring Currents of up to 80 kA
- Source :
- IEEE Transactions on Applied Superconductivity. 25:1-6
- Publication Year :
- 2015
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2015.
-
Abstract
- A new cryogenic dc current transformer (Cryo-DCCT) has recently been designed and assembled at CERN. The device, whose design is based on that of a high-accuracy 600 A market solution suitable for room temperature applications, is optimized for measuring currents of up to 80 kA and for operation at 4.2 K. The CryoDCCT has been conceived with the objective of preserving the metrological performance of the original commercial device in the new extended range of operation. For reducing the effect of interfering magnetic fields arising from test conditions, it incorporates ferromagnetic and MgB 2 superconducting shields. In this paper, the design of the CryoDCCT and the results of the commissioning of the device at CERN are reported. The effectiveness of the current transducer is analysed and discussed. This new device will be used for measuring the secondary current of a 80 kA superconducting transformer feeding a sample of NbSn 3 cable at the Facility for Research on Superconducting Cables (FRESCA) at CERN.
- Subjects :
- Materials science
Large Hadron Collider
Physics::Instrumentation and Detectors
business.industry
Superconducting electric machine
Electrical engineering
Shields
Superconducting magnet
Superconducting magnetic energy storage
Condensed Matter Physics
Accelerators and Storage Rings
Current transformer
Electronic, Optical and Magnetic Materials
law.invention
Nuclear magnetic resonance
law
Fault current limiter
Electrical and Electronic Engineering
Transformer
business
Subjects
Details
- ISSN :
- 15582515 and 10518223
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Applied Superconductivity
- Accession number :
- edsair.doi.dedup.....c57e2b680af0a9ebea0ccf3076dfb09b
- Full Text :
- https://doi.org/10.1109/tasc.2014.2370452