Method for Determining the Single-Phase Ground Fault Current in a Three-Phase Electrical Network with an Isolated Neutral

Utegulov, Bolatbek

doi:10.1109/iceee2019.2019.00012

2019 6th International Conference on Electrical and Electronics Engineering (ICEEE) 2019

DOI: 10.1109/iceee2019.2019.00012

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Method for Determining the Single-Phase Ground Fault Current in a Three-Phase Electrical Network with an Isolated Neutral

Bolatbek Utegulov

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2022

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ERROR ANALYSIS OF THE INDIRECT METHOD FOR MONITORING NETWORK ISOLATION PARAMETERS RELATIVE TO THE GROUND IN MATLAB/Simulink

Boboev¹,

Aver'yanov²,

Bogdanov³

et al. 2022

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The insulation parameters of electrical installations must be determined to find methods to prevent electri-cal injuries and ensure the safety of operation and reliability of power supply to electricity consumers. By identifying areas showing a steady decrease in insulation during operation and repairing such areas in a timely manner, the reliabi¬lity of power supply and operational safety can be significantly improved. Complete information about the insulation of electrical installations can be obtained by applying appropriate insulation monitoring methods. The article offers a brief description of existing methods for determining the parameters of network isolation relative to the ground and analyzes the errors of the indirect method based on connecting to one of the phases of additional capacity. A computer model of the influence of various factors on the accuracy of measurements of the insulation parameters of the network phases rel-ative to the ground was analyzed. The analysis showed that with phase voltage asymmetry and changes in the magnitude and type of load, the measurement error of the proposed method does not exceed 8%.

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ERROR ANALYSIS OF THE INDIRECT METHOD FOR MONITORING NETWORK ISOLATION PARAMETERS RELATIVE TO THE GROUND IN MATLAB/Simulink

Boboev¹,

Aver'yanov²,

Bogdanov³

et al. 2022

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A STUDY OF THE PARAMETERS OF THE 6 kV ELECTRICAL NETWORK AT TARRORSKY QUARRY

Boboev¹,

Aver'yano²,

Bogdanov³

et al. 2022

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In order to ensure continuity in the supply of electrical energy to electrical receivers, as well as for the purposes of the safe and reliable maintenance of electrical installations under operating voltage, the insulation parame-ters according to which organizational and technical measures are being developed needs to be known. The use of such measures will allow ssocial and economic benefits to be achieved.This article discusses the method developed to establish insulation parameters in quarry distribution networks (QDN). Using the methodology developed, a study was conducted in the “Tarror” quarry. During the study the dynamics of changes in the insulation resistance of the phases of the network relative to the ground was evaluated. Based on the results obtained, it was concluded that such measure-ments should be undertaken at least one year in advance. This will enable reasonable qualitative and quantitative conclu-sions to be drawn about the influence of environmental parameters on the insulation resistance of the phases of QDN rela-tive to the ground.

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Method for Determining the Single-Phase Ground Fault Current in a Three-Phase Electrical Network with an Isolated Neutral

Cited by 2 publications

References 1 publication

ERROR ANALYSIS OF THE INDIRECT METHOD FOR MONITORING NETWORK ISOLATION PARAMETERS RELATIVE TO THE GROUND IN MATLAB/Simulink

ERROR ANALYSIS OF THE INDIRECT METHOD FOR MONITORING NETWORK ISOLATION PARAMETERS RELATIVE TO THE GROUND IN MATLAB/Simulink

A STUDY OF THE PARAMETERS OF THE 6 kV ELECTRICAL NETWORK AT TARRORSKY QUARRY

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