Influence of Non-Linear Load on Single-Phase Fault Current in Electrical Networks with Isolated Neutral

Kazhekin, Ilya E.; Finko, Sergey P.

doi:10.1109/uralcon54942.2022.9906778

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…Presently, a significant amount of information has been accumulated on the research of the insulation condition of mining electrical networks, which is reflected in an increase in the level of electrical safety in open-cut mining [1][2][3][4][5][6]. However, these studies cannot serve as a standard for all types of quarries for reasons such as the location of quarries in different climatic zones, the number and capacity of electrical installations, and the length of power lines.…”

Section: Introductionmentioning

confidence: 99%

"Approbation of the developed method for determining network insulation parameters on an operating excavator"

Kurabayev¹,

Tatkeyeva²

2023

BTOUEn

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"One of the factors that determine the safety of electrical installations in ungrounded AC systems is the insulation resistance to earth. Early recognition and fault clearance, accompanied by a change in the active and reactive components of the insulation conductivity in ungrounded AC systems, will ensure work safety in electrical installations. Due to the fact the scale of cases of electrical injuries continues to remain significant, despite the tightening of the requirements of regulatory and technical documentation and the creation of newer effective methods and protection equipment against electric shock, therefore, increasing the level of electrical safety in the operation of mining machines and complexes is an urgent task. The article depicts the results of the approbation of the developed method for determining network insulation parameters on an operating excavator. The developed method is based on measuring phase voltages and angles of their vectors before and after connecting an additional capacitance to the phase of the electrical network and to the earth. According to the developed method, numerical data of the insulation condition in an electrical network with a voltage up to 1000 V and the single-phase earth fault current were calculated. During the approbation of the developed method, the lack of the existing protective residual current device was identified. Keywords: network insulation, admittance, susceptance, neutral shift, zero-sequence voltage. "

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