Results 181 to 190 of about 3,842 (216)

An electrothermal model for complete metal oxide surge arresters

11th International Symposium on High-Voltage Engineering (ISH 99), 1999
A computational, electrothermal model for a complete metal-oxide surge arrester based on the implicit form of the finite-differences method has been presented. The model has been used to calculate the cooling curve and the axial temperature profiles following the application of overvoltages The computed results have been checked against measurements.
openaire   +1 more source

Stability and Long Term Degradation of Metal Oxide Surge Arresters

IEEE Transactions on Power Apparatus and Systems, 1980
The thermal runaway process and the long term degradation of metal oxide blocks for a surge arrester are investigated both experimentally and analytically. The critical condition of a thermal runaway of the blocks is formulated. The dynamic stability after surge absorptions is also studied.
S. Tominaga, Y. Shibuya, Y. Fujiwara, M. Imataki, T. Nitta   +4 more
openaire   +1 more source

Protection of Underground Systems Using Metal-Oxide Surge Arresters

IEEE Transactions on Industry Applications, 1982
The application of metal-oxide surge arresters on underground systems, and their advantages at the riser pole and system-open points, is shown for arresters now available as well as those anticipated based on current technology. Improvements in protective margins are shown for each type of arrester discussed, with both livefront and deadfront ...
openaire   +1 more source

A Novel Approach to the Ageing Process of Metal Oxide Surge Arresters

Engineering, Technology & Applied Science Research
Gapless surge arresters constructed with zinc oxide (ZnO) elements, commonly known as Metal Oxide Surge Arresters (MOSA), are widely used for protecting electrical systems from lightning-induced overvoltages.
Anil S. Khopkar, Kartik S. Pandya
semanticscholar   +1 more source

Axial voltage and gradient distribution of metal oxide surge arresters

[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials, 2002
An investigation of the external axial voltage and gradient distribution along the porcelain shells of metal oxide arresters was conducted. Various service conditions such as on ground or elevated installation, proximity to energized apparatus or large earthed objects, and their influence on the voltage and gradient distribution were studied.
N. Alame, G. Melik
openaire   +1 more source

A Deep Learning Approach for the Detection of Surge Events in Metal Oxide Surge Arresters

2025 33rd Southern African Universities Power Engineering Conference (SAUPEC)
This paper presents a deep learning-based approach using Long Short-Term Memory (LSTM) network to detect surge events in Metal Oxide Surge Arresters (MOSAs) through leakage current analysis.
Bongani Moses Beyane, G. Dlamini, P. Bokoro   +2 more
semanticscholar   +1 more source

Condition Monitoring of Metal Oxide Surge Arresters – Case Study

Lightning overvoltage is frequent phenomenon in power system which cannot be avoided, however damaged caused by it can be controlled to certain extent. Metal Oxide Surge Arresters (MOSA) are connected in the system for the protection of transmission and distribution system against lightning over voltages.
Anil S. Khopkar, Umesh N. Soni
openaire   +1 more source

Application of Metal-Oxide-Varistor Surge Arresters on Distribution Systems

IEEE Power Engineering Review, 1982
The emergence of the metal-oxide varistor (MOV) has made a significant impact on station-class surge arrester technology. Areas in which MOV arresters will provide superior protection on distribution systems are examined even though the current discharge voltage characteristics of MOV arresters are the same as those of conventional surge arresters ...
openaire   +1 more source

The kinetics of metal oxide photoanodes from charge generation to catalysis

Nature Reviews Materials, 2021
Sacha Corby, R R Rao, Ludmilla Steier
exaly  

Estimation of Moisture Content in Metal Oxide Surge Arrester Based on Frequency Distribution Analysis of Dielectric Relaxation Current

IEEE transactions on dielectrics and electrical insulation
A. K. Das, S. Chatterjee, S. Ojha, J. Pandey, S. Chakravorti   +4 more
semanticscholar   +1 more source