Cost and Benefit Analysis of Line Arresters for a 69kV Transmission System in Taiwan

Hong-Chan Chang (1), Jheng-Lun Jiang (2), Ruay-Nan Wu (3), Cheng-Chien Kuo (4), Tsung-Hsien Wang (5)
(1) Department of Electrical Engineering, National Taiwan University of Science and Technology , Taiwan, R.O.C.
(2) Department of Electrical Engineering, National Taiwan University of Science and Technology , Taiwan, R.O.C.
(3) Department of Electrical Engineering, National Taiwan University of Science and Technology , Taiwan, R.O.C.
(4) Department of Electrical Engineering, St. John's University, Taiwan, R.O.C.
(5) Department of Electrical Engineering, National Taiwan University of Science and Technology , Taiwan, R.O.C.
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How to cite (IJASEIT) :
Chang, Hong-Chan, et al. “Cost and Benefit Analysis of Line Arresters for a 69kV Transmission System in Taiwan”. International Journal on Advanced Science, Engineering and Information Technology, vol. 1, no. 5, Oct. 2011, pp. 467-71, doi:10.18517/ijaseit.1.5.95.
This paper presents a systematical evaluation experience on the performance and economic studies of line arresters for a 69 kV transmission system in Taiwan. The transient over-voltage phenomenon in high voltage transmission lines under lightning by using the Electro-Magnetic Transients Program (EMTP) package is well modeled and analyzed. The modeling for the simulated system including lightning, transmission line, transmission tower and line arrester are all considered to have more practical results. The cost and benefit evaluation for line arresters installation  is then conducted to provide a reasonable suggestion for lightning protection.  The performance of line arresters is evaluated by considering different installation schemes and lightning currents. Finally, a Taiwan’s experience is illustrated from both of the cost and benefit points of view.

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