高壓電纜接續介面之電場分析

Analysis of Electric Field on High Voltage Cable Joints

林于正(Yu-Jeng Lin)

指導教授 ： 王瑋民

崑山科技大學/工程學院/電機工程研究所/碩士(2011年)

https://doi.org/10.6828/KSU.2011.00092

摘要

高壓電纜為電力傳輸至設備媒介，本文探討電纜末端接續處理，分析應力錐改善接續處之高應力分佈，研究對象以交連聚乙烯(XLPE)電纜終端及接續，使用有限元素法軟體(COMSOL)模擬345kV終端匣及161kV直路接續匣，345kV級電纜終端匣探討施工失誤下存有氣隙、未照施工標準之定位，另外文中模擬電纜終端匣利用矽脂膏於氣隙處，改善裝置與電纜間介面之密合，以及改變不同介電參數應力錐對電力線影響分佈。161kV直路接續匣模擬對象為預模型(Premolded)介面與材質未達密合，模擬末端直路接續裝置電場強度之影響，且觀察由各假設案例與正常施工之電場強度差異及影響。

關鍵字

電纜終端匣 ； 直路接續匣 ； 應力錐 ； 交連聚乙烯

並列摘要

The thesis investigates the electric field distribution on joint interface of EHV power cables. The effects on electric field of joint by using stress cone are analyzed. The COMSOL software is employed for simulations. The terminations of 345kV Cross-Linked Poly Ethylene (XLPE) power cable and 161kV straight joint models are constructed to simulate the electric stress on the interface. The electric field simulation assumption includes incorrect positioning of stress cone and defects on interface. The silicon grease used to improve the electric field of cavity is also simulated.

並列關鍵字

Cable Termination ； Cable Joints ； Stress Cone ； XLPE

參考文獻

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[3]Ostard I. Gilbertson, Electrical Cables for Power and Signal Transmission, John Wiley & Sons, 2000.

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[8]李政鴻，“地下電纜端末接續方法及電應力研究”，碩士論文，崑山科技大學電機系，民國九十九年七月。