Segment location for single-phase-to-ground fault in neutral non-effectively grounded system based on distributed electric-field measurement

Xiao, Di; He, Tao; Xiao, Ruiyang; Du, Xuefei

doi:10.1016/j.epsr.2020.106321

Cited by 10 publications

(3 citation statements)

References 12 publications

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“…At present, the tunnel magnetoresistive sensor has wide range and high sensitivity, in addition to, it also has small size and lower power consumption, it is good for the feature extraction of the fault information, therefore, it is suitable for the fault location of distribution network. In paper [10], the similarity of electric field waveforms of adjacent measuring points is quantified and highlighted by dynamic time warping algorithm, so as to realize the fault location of neutral noneffectively grounded system. Paper [11] measures the quasistatic electric field generated by faults, and the fault section is determined by the associated time difference of arrival of the transients.…”

Section: A Previous and Related Workmentioning

confidence: 99%

Single phase to ground fault location method of overhead line based on magnetic field detection and multi-criteria fusion

Wang¹,

Du²,

Liang³

et al. 2023

International Journal of Electrical Power & Energy Systems

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Section: A Previous and Related Workmentioning

confidence: 99%

Single phase to ground fault location method of overhead line based on magnetic field detection and multi-criteria fusion

Wang¹,

Du²,

Liang³

et al. 2023

International Journal of Electrical Power & Energy Systems

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“…According to the types of the extracted fault features, the algorithms for fault section location generally fall into two main categories: the steady-state and transient-state algorithms [10]. The steady-state algorithms commonly use the amplitudes and phases of the voltages and currents to determine the fault section.…”

Section: Introductionmentioning

confidence: 99%

Edge Computing Based Fault Sensing of the Distribution Cables Based on Time-Domain Analysis of Grounding Line Current Signals

Peng

Liu

Liang

et al. 2022

IEEE Trans. Power Delivery

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“…Analysis shows that a significant part of the faults are single-phase earth faults, which in most cases turn into multi-phase short circuits, which are disconnected by overcurrent protection [9,18]. The analysis graphs of the number of failures for the specified period (Fig.…”

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confidence: 99%

Improving the efficiency of relay protection at a mining and processing plant

Klyuev

Босиков

Гаврина

2021

PMI

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The paper presents the results of constructing effective relay protection in the power supply system of a mining and processing plant (MPP). A brief description of the MPP is given, the power supply and substitution circuits used to calculate the short-circuit currents are given. A statistical analysis of failures in the electric network of the MPP has been carried out, which makes it possible to draw conclusions about the nature of failures ranges. Analysis of the registered faults shows that a significant part of them are line-to-earth faults, which in most cases turn into multiphase short circuits, which are interrupted by overcurrent protection. In order to improve the efficiency and reliability of the relay protection, the power supply scheme of the MPP was refined and analyzed. The calculation of the short-circuit currents was made, which made it possible to calculate the settings of the relay protection and give recommendations on the place of its installation and adjustment in order to ensure the normal operation of electricity consumers. To reduce the number of failures to the cable insert on the line leaving the administrative and household complex (AHC), and to increase the reliability of power supply to consumers, it is advisable to divide the capacities of the existing 10 kV line into two parallel ones by laying a second line. It is recommended to install a current cut-off on the line outgoing to the AHC, the feasibility of the installation of which was shown by calculations. This will reduce the chance of failures to the cable gland. Data on the setting currents of overcurrent protection and current cut-off are given on the selectivity card.

show abstract

Segment location for single-phase-to-ground fault in neutral non-effectively grounded system based on distributed electric-field measurement

Cited by 10 publications

References 12 publications

Single phase to ground fault location method of overhead line based on magnetic field detection and multi-criteria fusion

Single phase to ground fault location method of overhead line based on magnetic field detection and multi-criteria fusion

Edge Computing Based Fault Sensing of the Distribution Cables Based on Time-Domain Analysis of Grounding Line Current Signals

Improving the efficiency of relay protection at a mining and processing plant

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