Analysis of the Effect of Air Gaps on the Electric Field in the Insulation Material of High Voltage Transmission Cables

Yıl 2022, Cilt: 15 Sayı: 1, 69 - 79, 27.03.2022

Yıldırım Özüpak

https://doi.org/10.18185/erzifbed.952750

Öz

High voltage (HV) cables are widely used in the transmission and distribution of electrical energy. The design and manufacture of these cables with great precision are of great importance for power systems. Mistakes made during the manufacturing phase and defects that may occur in the structure of the cable material can cause premature aging and continuous malfunctions in the cables. Factors such as air gaps, foreign substances, and moisture in the insulating material may cause punctures and insulation problems in high voltage cables. In this study, the effects of air gaps left as manufacturing defects on the electric field distribution in the insulation of high voltage cables used in power systems were investigated. The effects of 154 kV high voltage cable, the air gap in different coordinates, and diameters in the insulating layer on the electric field distribution in the cable have been investigated. For this analysis, the Finite Element Method (FEM) and ANSYS@Workbench program which realizes a solution based on this method were used. It has been found that the diameter and location of the air gap significantly affect the electric field distribution of the high voltage cable.

Anahtar Kelimeler

Electric field, FEM, ANSYS

Kaynakça

• [1] Y. Özüpak, “Yüksek Gerilim Sistemlerinde İletim Hatlarında Meydana Gelen Elektrik Alanının Analizi,” International Gobeklitepe Applied Sciences Congress – II Sanliurfa, 2021, pp 24-30.
• [2] S. Boggs, "Design considerations for high voltage DC components," IEEE Electrical Insulation Magazine, vol. 28, no. 6, pp. 36 - 44, 2012.
• [3] M. Aaron, M. Neill, E. Mohamed and S. M. Dalhousie “Submarine power cable electrical performance evaluation for marine energy applications,“ The Journal of Ocean Technology, vol. 8, no. 1, 2013.
• [4] C. Kocatepe, O. Arıkan, C. F. Kumru, O. D. Orhan, ‘’The effect of high voltage cable ınsulation problems on electric field distribution.,’’ ELECO Elektrik - Elektronik ve Bilgisayar Mühendisliği Sempozyumu, 2012, pp 65-73.
• [5] S. Lachini, A. Gholami and M. Mirzaie, "Determining electric field distribution in high voltage cable ın presence of a cavity," Universities Power Engineering Conference (UPEC), 2010, pp 1-7.
• [6] H. N. O. T. R. Phung, B. T. Zhang, H. Khawaja, and R. H. Khawaja, "Investigation of electric field distribution ın power cables with voids," 8th International Conference on Properties and Applications of Dielectric Materials, 2016, pp. 637-640.
• [7] Y. Özüpak, ‘’Yüksek gerilim güç hatlarının manyetik alan analizleri,’’ International Gobeklitepe Applied Sciences Congress – II Harran University, Sanliurfa, Turkey, 2021, pp-31-37.
• [8] Y. Özüpak, M. S. Mamiş, İ. H. Teke, ‘’Electromagnetic field and total loss analysis of transformers by finite element method,’’ International Journal of Engineering and Computer Science, 8(1), 2019, pp 24451-24460.
• [9] C. Chengaiah, R. V. S. Satyanarayan, "Power flow assessment transmission lines using SimulinkModel with UPFC," International Conference on Computing, Electronics and Electrical Technologies [ICCEET], 2012, pp 154-169.