Insulation Characteristics of PPLP and Design of 250 kV Class HTS DC Cable

Author

Woo-Jin Kim ; Hae-Jong Kim ; Jeon-Wook Cho ; Haigun Lee ; Yeon Suk Choi ; Sang-Hyun Kim

Author_Institution

Dept. of Electr. Eng., Gyeongsang Nat. Univ., Jinju, South Korea

Volume

25

Issue

3

fYear

2015

fDate

Jun-15

Firstpage

1

Lastpage

4

Abstract

The development of high temperature superconducting (HTS) dc cable system has been promoted for the land long-term high-capacity power transmissions, submarine cables and renewable energies. Polypropylene laminated paper (PPLP) has been widely used as insulating material for HTS cable. To develop the PPLP-insulated dc cable, it is important to study the dc, dc polarity reversal and lightning impulse characteristics at a cryogenic temperature. In this paper, we discuss the electrical insulation characteristics of PPLP-insulated mini-model cable. We investigate the dc, impulse breakdown strength, dc polarity reversal, and dc voltage (V)-numbers of dc polarity reversal (N). Also, based on these results, the insulation design of 250 kV class HTS dc cable is performed.

Keywords

cryogenics; high-temperature superconductors; laminations; paper; polymer insulators; power cable insulation; submarine cables; superconducting cables; DC polarity reversal; HTS DC cable design; PPLP-insulated DC cable; PPLP-insulated mini-model cable; cryogenic temperature; electrical insulation characteristics; high temperature superconducting DC cable; impulse breakdown strength; insulating material; land long-term high capacity power transmission; lightning impulse characteristics; polypropylene laminated paper; renewable energy; submarine cables; voltage 250 kV; Electric breakdown; High-temperature superconductors; Power cable insulation; Power cables; Superconducting cables; HTS dc cable; Insulation characteristics; Insulation design; PPLP; insulation characteristics; insulation design;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2015.2389150

Filename

7004855