Computer Science & Electrical
Received: 05 Aug 2019 , Published: 09 August 2019
Views: 73 , Download: 39
|1||Moe Moe San|
|2||Naung Cho Wynn|
Lightning strikes to overhead transmission lines cause travelling waves which propagate along the overhead line and enter substations where they cause over voltages which can pose a risk to any items of equipment connected, such as cables or transformers. With the use of metal-oxide arresters, these overvoltage are reduced to values which, taking into account an adequate safety margin, are below the electric strength of the electrical devices applied. In this paper we emphasize the impact of protection technique used Surge arresters from overvoltage develop across the system.
All the simulating work is done in MATLAB/Simulink in which we develop different graphical relationship between current, voltage waveforms with respect to time. All this simulation is carried out with arrester to evaluate transmission line arrester impact on surge develops across the system and to improve the overall performance of the system.
Keywords; Surge arrestors, high voltage, power system, metal-oxide arresters, Simulation, Transmission lines, substation
A. Greenwood, “Electrical Transients in Power Systems”. New York: John Wiley & Sons, 2nd Ed., 1991, pp. 463-485.
J. Elovaara, K. Foreman, A. Schei, O. Völcker: Temporary overvoltages and their stresses on metal oxide surge arresters, Electra 128 (1990), pp.114125.
Goudarzi A and Mohseni H, "Evaluation of mathematical models of metal oxide surge arrester for energy absorption study," presented at 39th International Universities Power Engineering Conference, 2004.
R.B. Standler, Protection of electronic circuit from overvoltages, John Wiley & Sons, 1989.
M. Babuder, “The ability of different simulation models to describe the behavior of metal oxide varistors”, 28th Internaltional Conference on Lightning Protection, September 18-22, Kazanaqa, Japan, pp. 1111-1116.
J.P. Mackevich, "Proper Lightning Arrester Application Improves Distribution System Reliability" presented at the IIE 2nd Int. Conf. Advances in Power System Control, Operation and Management, Hong Kong, December, 1993.
Kuffel, E., W.S. Zaengl, J. Kuffel, High Voltage Engineering Fundamentals, Second Edition, By Butterworth-Heinemann, 2000.
Electrical Power Transmission System Engineering, Analysis and Design by Turan Gonen- California State University, Sacramento, California.