Results 301 to 310 of about 574,125 (334)

Surge Discharge Capability and Thermal Stability of a Metal Oxide Surge Arrester

IEEE Power Engineering Review, 1983
The surge discharge capability and the thermal stability of a metal oxide surge arrester were examined experimentally.
Kojima, Nishiwaki, Sato, Yanabu, Kan
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Maintenance of surge arrester by a portable arrester leakage current detector

IEEE Transactions on Power Delivery, 1988
An instrument is described that detects leakage current without disconnecting the arrester ground wire. Better means were developed for detecting deterioration of a surge arrester than the existing appearance inspection, insulation resistance measurement, and leakage current measurement.
H. Kitajima, Shingo Shirakawa, K. Goto, S. Kobayashi, M. Sakai, F. Endo   +5 more
openaire   +2 more sources

A brief history of AC surge arresters

IEEE Power Engineering Review, 1991
Since the beginning of AC transmission, approximately 100 years ago, lightning protection of transmission equipment has been provided by gaps and by nonlinear resistors, alone or in various combinations. Protection during the early part of the period (1892-1908) was provided by simple air gaps from line to ground.
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Radioactive reliability of gas filled surge arresters

IEEE Transactions on Nuclear Science, 2003
The goal of this paper is to determine use of gas filled surge arresters (GFSA) with a built-in radioactive sources in radiative environment. Furthermore, a pseudoempiric method has been developed to determine the GFSA pulse shape characteristics. These results are considered relevant for the use of this component in both military applications and ...
Lončar, Boris B., Osmokrović, Predrag V., Stanković, Srboljub   +2 more
openaire   +3 more sources

Thermal balance diagram modelling of surge arrester for thermal stability analysis considering ZnO varistor degradation effect

, 2016
This study proposes a new method for modelling of metal-oxide surge arresters (MOSAs) thermal balance diagram based on power loss and heat dispersion curve.
S. Seyyedbarzegar, M. Mirzaie
semanticscholar   +1 more source

Thermal Stability and Life of the Gapless Surge Arrester

IEEE Transactions on Power Apparatus and Systems, 1981
The life of the gapless arrester using the ZnO element is examined experimentally. The mode of degradation due to ac voltage application differs according to the composition of ZnO valve element. The watt loss is not always a linear function with time.
Mizuno, Mitani, Hayashi
openaire   +3 more sources

Design technique for leakage current reduction in surge arrester using gravitational search algorithm and imperialist competitive algorithm

, 2017
Leakage current is one of the factors, which can contribute towards degradation of surge arresters. Thus, the purpose of this paper is to study on leakage current within surge arresters and improvement on their design.,In this work, a three-dimensional ...
N. Latiff, H. Illias, A. Bakar, S. A. Halim, S. Dabbak   +4 more
semanticscholar   +1 more source

Comments on metal oxide surge arresters surges energy absorption capacity

Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, 2002
This paper presents an approach to determine the energy absorption capacity of metal oxide surge arrester resistors. The proposed approach deals with the discharge current peak versus discharge current time relation. A testing method and a statistical evaluation are proposed.
M.L.B. Martinez, L.C. Zanetta
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The modeling of metal-oxide surge arrester applied to improve surge protection

2009 2nd International Conference on Power Electronics and Intelligent Transportation System (PEITS), 2009
Metal-oxide surge arresters have dynamic characteristics which are significant for overvoltage coordination studies involving the fast front surges.
A. A. Shayegani Akmal, M. Karbalaye Zadeh, Hassan Abniki   +2 more
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Electrothermal model for complete metal-oxide surge arresters

IEE Proceedings - Generation, Transmission and Distribution, 1999
A computational, electrothermal model for a complete metal-oxide surge arrester based on the implicit form of the finite-differences method is presented. The model is used to calculate the cooling curve after the application of overvoltages and the temperature variations during standard test.
A. Guedes da Lima, E. Guedes da Costa, S.R. Naidu   +2 more
openaire   +3 more sources