Inspection of pin insulators in medium voltage distribution lines and outage reduction

2009 ◽  
Author(s):  
H.R.P.M. de Oliveira ◽  
E.L. Batista ◽  
C. Lefort ◽  
C. de Salles ◽  
M.L.B. Martinez
Keyword(s):  
Voltage Distribution ◽  
Medium Voltage ◽  
Distribution Lines

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 Releasing more capacity for EV integration by DC medium voltage distribution lines

2017 ◽  
Vol 10 (15) ◽  
pp. 2116-2123 ◽  
Author(s):  
Lu Zhang ◽  
Ying Chen ◽  
Chen Shen ◽  
Wei Tang ◽  
Jun Liang
Keyword(s):  
Voltage Distribution ◽  
Medium Voltage ◽  
Distribution Lines

New Detection Method for an Insulation Level Monitoring Device Used in Low-Voltage Distribution Lines

2016 ◽  
Vol 136 (11) ◽  
pp. 878-883 ◽  
Author(s):  
Kazunori Nishimura ◽  
Yusaku Marui ◽  
Satonori Nishimura ◽  
Wataru Sunayama
Keyword(s):  
Detection Method ◽  
Low Voltage ◽  
Monitoring Device ◽  
Voltage Distribution ◽  
Distribution Lines ◽  
Level Monitoring
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