Accurate modeling and parameters identification of Metal Oxide Surge Arrester (MOSA) are very important for arrester allocation, systems reliability and insulation coordination studies. Several models with acceptable accuracy have been proposed to describe this behavior. It should be mentioned that the estimation of nonlinear elements of MOSAs is very important for all models. In this paper, a ...

The housing of zinc oxide lightning arresters are playing major role for discharging the lightning surges. Previously porcelain and silicon rubber housings were mainly used depending on the atmospheric conditions but in practice a lot of problems are faced with these housing. Hence this paper presenting the ZnO blocks performance characterizes with different dielectrics such as air, transformer...

Switching surges are of primary importance in insulation co-ordination EHV lines, as well designing apparatuses. The magnitude and shape the switching overvoltages vary with system parameters, network configuration point-on-wave where operation takes place. This paper presents an artificial neural (ANN) based approach to estimate peak value global risk failure generated by transients during lin...

Power system especially the distribution which is closest to consumer very fundamental and important a nation’s economy development that was reason this study titled “Evaluation of reliability power components, case Sagamu Substation, Ogun State” carried out in response yawning for reliable stable supply. It indispensable find means shaping component failure contributes most unavailability, out...

Manual analysis of thermal image for detecting defects and classifying of condition of surge arrester take a long time. Artificial neural network is good tool for predict and classify data. This study applied neural network for classify the degree of degradation of surge arrester. Thermal image as input of neural network was segmented using Otsu’s segmentation and histogram method to get featur...

The fourth rail transit is an interesting topic to be shared and accessed by the community within that area of expertise. Several ongoing works are currently being conducted especially in aspects system technical performances including bracket component sensitivity analyses on various designs. Furthermore, lightning surge study railway electrification significant due fact only a handful publica...