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

scholarly journals Rating of amplitudes of high harmonics in determining feeder with single-phase ground fault

2020 ◽  
Vol 22 (1) ◽  
pp. 58-68 ◽  
Author(s):  
A. I. Fedotov ◽  
L. V. Akhmetvaleeva ◽  
R. S. Basyrov ◽  
G. V. Vagapov ◽  
E. A. Fedotov
Keyword(s):  
Single Phase ◽  
Field Experiments ◽  
Spectral Composition ◽  
Ground Fault ◽  
Neutral Mode ◽  
Ground Faults ◽  
Harmonic Components ◽  
Isolated Neutral ◽  
Comparison Of The Results ◽  
Selection Of

The aim of the paper is theoretical and experimental research of processes during the single-phase ground faults in electrical distribution grids of 10/06/35 kV with isolated neutral mode. The mathematical method of rationing is used for the analysis of the spectral composition of currents and voltages increasing the information content of the allocated higher harmonics of current and voltage. The paper show a comparison of the results of spectral analysis with and without taking into account the mathematical rationing obtained on the simulation model. Field experiments have demonstrated the effectiveness of using of the method of mathematical rationing of the higher harmonic components of current and voltage for various types of single-phase ground faults. The results of field experiments provided an opportunity of improving the methodology of yearling detection of single-phase ground faults in electric grids of 6-10-35 kV with an isolated mode of neutral. The conclusion of the research is the possibility of a significantly more accurate selection of the resonant frequencies of the spectrum of currents and voltages obtained by using of the method of mathematical rationing. The possibility of earlier and more precise localization of the feeder with ground fault is shown on the base more precise selection of the resonant frequency currents and voltages.

FLOW CONTROL ACTIVE AND REACTIVE POWER IN ELECTRIC NETWORKS

2016 ◽  
Vol 2016 (5) ◽  
pp. 61-63
Author(s):  
F.P. Govorov ◽  
◽  
V.F. Govorov ◽  
Keyword(s):  
Flow Control ◽  
Reactive Power ◽  
Electric Networks ◽  
Active And Reactive Power

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
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