The insulation coordination and surge arrester design for HTS cable system in Icheon substation

► It is necessary to study lightning response of the HTS cable. ► The analytic model has been developed for the HTS cable in the Icheon substation. ► Well-designed surge arrester has been verified through PSCAD/EMTDC simulations. This paper proposes an insulation coordination and surge arrester desi...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2013-01, Vol.484, p.223-228
Main Authors: Lee, Hansang, Yoon, Dong-Hee, Lee, Seung-Ryul, Yang, Byeong-Mo, Jang, Gilsoo
Format: Article
Language:English
Subjects:
Applied sciences
Basic impulse insulation level
Cables
Design engineering
Electrical engineering. Electrical power engineering
Exact sciences and technology
HTS cable
Insulation
Insulation coordination
Insulators
Lightning
Overvoltage
Substations
Superconductivity
Surge arrester
Surge arresters
Surges
Various equipment and components
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Summary:► It is necessary to study lightning response of the HTS cable. ► The analytic model has been developed for the HTS cable in the Icheon substation. ► Well-designed surge arrester has been verified through PSCAD/EMTDC simulations. This paper proposes an insulation coordination and surge arrester design for HTS (High-Temperature Superconducting) cable system in Icheon substation in Korea. In the aspect of the economic analysis, since the HTS cable is very expensive, the insulation coordination to prevent the dielectric breakdown caused by the lightning surge should be considered carefully. Also, in the aspect of the power system reliability, since the HTS cable has much more capacity compared than conventional power cables and the ripple effect from the HTS cable failure may lead to the wide area blackout, an intensive study for insulation coordination from lightning surge is one of the most important considerations. In this paper, the insulation coordination for lightning surge is verified using HTS cable and power equipment models and the design of the proper surge arrester is proposed.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2012.03.054