Fault Signature Analysis for Medium Voltage Overhead Line Based on New Characteristic Indices

2020 ◽  
Author(s):  
Saidatul Habsah Asman ◽  
Nur Fadilah Ab Aziz ◽  
Mohd Zainal Abidin Abd Kadir ◽  
Ungku Anisa Ungku Amirulddin
Keyword(s):  
Signature Analysis ◽  
Overhead Line ◽  
Medium Voltage

Fault Signature Analysis Based on Digital Fault Recorder in Malaysia Overhead Line System

2020 ◽  
Author(s):  
Saidatul Habsah Asman ◽  
Nur Fadilah Ab Aziz ◽  
Mohd Zainal Abidin Abd Kadir ◽  
Ungku Anisa Ungku Amirulddin
Keyword(s):  
Signature Analysis ◽  
Overhead Line ◽  
Line System ◽  
Fault Recorder

Short interruptions caused by lightning in overhead line medium voltage networks

2008 ◽  
Author(s):  
M. Parviainen ◽  
P. Heine ◽  
M. A. Omidiora ◽  
M. Lehtonen ◽  
J. Niskanen ◽  
...  
Keyword(s):  
Overhead Line ◽  
Medium Voltage

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.

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