Isolated Neutral Peptides

2014 ◽  
pp. 225-270 ◽  
Author(s):  
Eric Gloaguen ◽  
Michel Mons
Keyword(s):  
Isolated Neutral

THE METHOD OF ASSESSING THE STATE OF ISOLATION DISCONNECTED CONNECTIONS 6-10 KV NETWORKS WITH ISOLATED NEUTRAL

2016 ◽  
Vol 2016 (5) ◽  
pp. 76-78
Author(s):  
N.V. Grebchenko ◽  
◽  
A.V. Kozhukhar ◽  
O.V. Demchenkо ◽  
◽  
...  
Keyword(s):  
The State ◽  
Isolated Neutral

scholarly journals APPLICATION OF GSM TECHNOLOGY FOR IDENTIFICATION OF PHASE-TO-GROUND FAULTS IN ELECTRIC NETWORKS WITH ISOLATED NEUTRAL AND PIN-TYPE ISOLATION

2018 ◽  
Vol 2018 (5) ◽  
pp. 96-99
Author(s):  
V.M. Bezruchko ◽  
◽  
R.O. Buinyi ◽  
A.Y. Strogii ◽  
V.I. Tkach ◽  
...  
Keyword(s):  
Electric Networks ◽  
Ground Faults ◽  
Isolated Neutral

Line Selection Analysis of Ground Fault in Distribution Network Based on Chief Half-Wave and Remnant Current

2012 ◽  
Vol 482-484 ◽  
pp. 2197-2203 ◽  
Author(s):  
Fang Peng ◽  
Yu Shen Zhou ◽  
Yong Feng Liu ◽  
An Hui Yuan ◽  
Lei Zhu
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Neutral System ◽  
Selection Methods ◽  
Fault Line ◽  
Fault Line Selection ◽  
Ground Fault ◽  
Half Wave ◽  
Line Selection ◽  
Isolated Neutral

Abstract：This paper analyses characteristics of single-phase ground fault in distribution system. Now, most of the line selection methods have some limitations, which leads to the low accuracy of the fault line selection. In order to solve above problems, make use of the matlab software in this article to simulate and analyze the isolated neutral system and resonance neutral earthing system when they occur single-phase ground fault. Finally, the new method based on first half wave method and increment of residual current to improve the accuracy of fault line selection is proposed.

scholarly journals Non-Directional Earth Fault Passage Indication in Isolated Neutral Distribution Networks

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4732
Author(s):  
Amir Farughian ◽  
Lauri Kumpulainen ◽  
Kimmo Kauhaniemi
Keyword(s):  
Single Phase ◽  
Distribution Networks ◽  
Voltage Measurement ◽  
Negative Sequence ◽  
Overhead Lines ◽  
New Methods ◽  
Zero Sequence ◽  
Isolated Neutral ◽  
Negative Sequence Current ◽  
Symmetrical Sequence

In this paper, two new methods for locating single-phase to ground faults in isolated neutral distribution networks are proposed. The methods are based on the analysis of symmetrical sequence currents. They are solely based on currents, not requiring voltage measurement. The first method employs only the zero sequence current and the second one utilizes the negative sequence current in combination with the zero sequence current. It is revealed why using only zero sequence current with a simple threshold is insufficient and may lead to false results. Using the proposed methods, earth faults with high resistances can be located in isolated neutral distribution networks with overhead lines or cables.

Application of the model microfield method to Stark profiles of overlapping and isolated neutral lines

1976 ◽  
Vol 9 (7) ◽  
pp. 1147-1162 ◽  
Author(s):  
A Brissaud ◽  
C Goldbach ◽  
J Leorat ◽  
A Mazure ◽  
G Nollez
Keyword(s):  
Isolated Neutral
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