Numerical Analysis and Electrical Insulation Design of a Single-Phase 154 kV Class Non-Inductively Wound Solenoid Type Superconducting Fault Current Limiter

The electrical insulation design of high voltage superconducting fault current limiters (SFCLs) should be confirmed for the stabilization of the power grid. This paper describes numerical analysis for high voltage SFCLs based upon the AC and lightning impulse dielectric tests. To calculate the field...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2012-06, Vol.22 (3), p.5602104-5602104
Main Authors: Na, Jin Bae, Kang, Hyoungku, Ko, Tae Kuk
Format: Article
Language:English
Subjects:
AC dielectric tests
Applied sciences
Coils
Computer simulation
conceptual insulation design of 154 KV SFCL
Connection and protection apparatus
Design engineering
Electric fields
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrodes
Electromagnets
Electronics
Exact sciences and technology
Finite element analysis
Finite element method
Finite element methods
Insulation
Lightning
Mathematical analysis
Mathematical models
Miscellaneous
non-inductively wound solenoid type
Numerical analysis
Power networks and lines
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Solenoids
Studies
sub-cooled liquid nitrogen
Superconducting devices
superconducting fault current limiters
Superconductivity
Various equipment and components
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Description
Summary:The electrical insulation design of high voltage superconducting fault current limiters (SFCLs) should be confirmed for the stabilization of the power grid. This paper describes numerical analysis for high voltage SFCLs based upon the AC and lightning impulse dielectric tests. To calculate the field utilization factor, the electric field distributions for numerical analysis were calculated by finite element method (FEM) simulation tool. The correlation of experiments results and the field utilization factor was investigated. From the results, the electric field criterion of liquid nitrogen at 200 kPa was calculated. Furthermore, safety factor was also considered to design single-phase 154 kV class SFCL. This insulation design in liquid nitrogen focused only two parts of SFCL. Part 1 is gap distance between a cryostat and superconducting coils. Part 2 is gap distance between series-connections of non-inductively wound solenoid type coils.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2011.2182333