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http://dx.doi.org/10.5370/KIEE.2015.64.6.857

Effectiveness Evaluation on Combined Connection Operation of OF and XLPE Cable  

Chea, Jik-byoung (Dept. of Electrical Engineering, Wonkwang University)
Lee, Jong-Beom (Dept. of Electrical Engineering, Wonkwang University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.6, 2015 , pp. 857-863 More about this Journal
Abstract
OF cable with excellent reliability and economic efficiency, has been used as the main cable of underground transmission in Korea. However, as XLPE cable is excellent in view points such as reduction of loss, convenience on the construction/operation, and manufacturing technology, it has been replaced as instead of OF cable. Also, when the aging occurs in some sections of OF cable, the section is replaced as XLPE cable without changing of whole cable line. However, there are some differences like electrical constants between both types of cables. Therefore if underground transmission system will be operated as combined connection composited of both cables, it should be proved that overvoltage is stable in steady and transient state. This paper describes the effectiveness of connection operation in combined OF and XLPE cable. For the evaluation of effectiveness, some important analysis such as sheath component voltage, lightning and switching overvoltage, single line-to-ground fault are carried out in steady and transient state. EMTP/ATPDraw is used for modeling and analysis of system.
Keywords
OF Cable; XLPE Cable; Combined connection operation; EMTP;
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  • Reference
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