scholarly journals Mechanics analysis of gears system for peeler device during live operation of 10kV distribution network overhead line

2021 ◽  
Vol 770 (1) ◽  
pp. 012063
Author(s):  
Feng Yu ◽  
Wu Kai ◽  
Wu Shaolei ◽  
Shi Xun ◽  
Liu Qiangqiang ◽  
...  
Keyword(s):  
Distribution Network ◽  
Overhead Line ◽  
Mechanics Analysis ◽  
Network Overhead

Simulation of the Lightning Back-Flashover for Medium Voltage Distribution Network

2016 ◽  
Vol 3 (2) ◽  
pp. 264
Author(s):  
Osama El-Sayed Gouda ◽  
Noura Ahmed Elshesheny
Keyword(s):  
Distribution Network ◽  
Overhead Line ◽  
Voltage Distribution ◽  
Lightning Strikes ◽  
Factors Affecting ◽  
Analysis Study ◽  
Medium Voltage ◽  
Distribution Lines ◽  
Soil Ionization

Lightning strikes represent a considerable cause of short interruptions in electrical overhead line networks. The over voltages caused by lightning cannot be avoided but their influence can be limited by appropriate over voltage protection. This paper presents analysis study on some factors affecting the back flashover of Egyptian 66 kV distribution lines using Alternative Transient Program (ATP). The study includes the modeling of 66 kV distribution lines, the effects of magnitude and the front and tail times of lightning wave on the back flashover voltages, the effects of the striking distance, and the using of counterpoise wires on the back flashover on the 66 kV line towers. In this paper the 66 kV lines sag is neglected and the soil ionization by the flow of the stroke current is considered.

scholarly journals The Study on Lightning Disaster Risk Assessment Model of 10kV Overhead Line

2018 ◽  
Vol 173 ◽  
pp. 01008
Author(s):  
Song wei ◽  
Wang Yanfeng ◽  
Wang shuanghu
Keyword(s):  
Risk Assessment ◽  
Social Impact ◽  
Distribution Network ◽  
Weight Ratio ◽  
Disaster Risk ◽  
Assessment Model ◽  
Theoretical Research ◽  
Risk Assessment Model ◽  
Overhead Line ◽  
The Impact

Taking all kinds of affecting factors into account, the 10kV overhead line of distribution network lighting disaster risk is studied. Historical hidden fault, line equipment, topography, climatic conditions and social impact are selected as key factors of damage and the impact. The correlation among the factors and the weight ratio of each factor were studied. The risk assessment model of 10kV distribution network overhead line was established by multi-factor, hierarchical classification assessment method. It solves the evaluation index insufficient problem of the single factor as the evaluation condition, and provides the theoretical research and practical support to the 10kV overhead line reconstruction and the lightning prevention. The reliability and effectiveness of the research results have been proved by practical application in distribution network operation and maintenance control.

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