Analytical and experimental studies on dielectric characteristics of high voltage superconducting machines in liquid nitrogen

J. B. Na; T. K. Ko; H. Kang; B. Y. Seok; T. J. Kim

doi:10.9714/psac.2011.13.1.046

Analytical and experimental studies on dielectric characteristics of high voltage superconducting machines in liquid nitrogen

J. B. Na, T. K. Ko, H. Kang, B. Y. Seok, T. J. Kim

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The electrical insulation design of high voltage superconducting fault current limiters (SFCLs) should be confirmed to be applied for the stabilization of the power grid. This paper describes numerical analysis and AC dielectric experiments for developing high voltage SFCLs. The electric field distributions between applied high voltage part and ground were calculated by finite element method (FEM) simulation tool and AC criterion of liquid nitrogen at 200 kPa was calculated from correlation between the field utilization factor and FEM simulation results. This paper deals with ceonceptual insulation design of a 154 kV class single-phase no-inductively wound solenoid type SFCL which was focused on gap distance between the cryostat and superconducting coils. Furthermore, the shield ring-effect was confirmed to reduce maximum electric field at applied high voltage part.

Original language	English
Pages (from-to)	46-50
Number of pages	5
Journal	Journal of the Korea Institute of Applied Superconductivity and Cryogenics
Volume	13
Issue number	1
DOIs	https://doi.org/10.9714/psac.2011.13.1.046
Publication status	Published - 2011 Mar

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.9714/psac.2011.13.1.046

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abstract = "The electrical insulation design of high voltage superconducting fault current limiters (SFCLs) should be confirmed to be applied for the stabilization of the power grid. This paper describes numerical analysis and AC dielectric experiments for developing high voltage SFCLs. The electric field distributions between applied high voltage part and ground were calculated by finite element method (FEM) simulation tool and AC criterion of liquid nitrogen at 200 kPa was calculated from correlation between the field utilization factor and FEM simulation results. This paper deals with ceonceptual insulation design of a 154 kV class single-phase no-inductively wound solenoid type SFCL which was focused on gap distance between the cryostat and superconducting coils. Furthermore, the shield ring-effect was confirmed to reduce maximum electric field at applied high voltage part.",

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AU - Kim, T. J.

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AB - The electrical insulation design of high voltage superconducting fault current limiters (SFCLs) should be confirmed to be applied for the stabilization of the power grid. This paper describes numerical analysis and AC dielectric experiments for developing high voltage SFCLs. The electric field distributions between applied high voltage part and ground were calculated by finite element method (FEM) simulation tool and AC criterion of liquid nitrogen at 200 kPa was calculated from correlation between the field utilization factor and FEM simulation results. This paper deals with ceonceptual insulation design of a 154 kV class single-phase no-inductively wound solenoid type SFCL which was focused on gap distance between the cryostat and superconducting coils. Furthermore, the shield ring-effect was confirmed to reduce maximum electric field at applied high voltage part.

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Analytical and experimental studies on dielectric characteristics of high voltage superconducting machines in liquid nitrogen

Abstract

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