Results 11 to 20 of about 14,713 (296)

Faulty Section Location Method Based on Dynamic Time Warping Distance in a Resonant Grounding System

open access: yesEnergies, 2022
When a single-phase grounding fault occurs in a resonant grounding system, the determination of the fault location remains a significant challenge due to the small fault current and the instability of the grounding arc.
Yu He   +6 more
doaj   +2 more sources

Fault Line Selection Method of Small Current Grounding System Based on Deep Learning

open access: yes发电技术, 2019
At present, the single-phase grounding fault line selection problem of small current grounding system has not been completely solved. In order to improve the success rate of single-phase grounding fault line selection, a new method based on deep learning
Guodong ZHANG, Haitao PU, Kai LIU
doaj   +2 more sources

Analysis of Fault Characteristics of Distribution Network with PST Loop Closing Device under Small Current Grounding System

open access: yesEnergies, 2022
With the rapid development of cities and the increasing complexity of distribution network systems, the cableization of transmission lines and the diversification of power users have brought new challenges to the supply reliability of distribution ...
Zhi Xu   +6 more
doaj   +2 more sources

Faulty Line Selection Method Based on Comprehensive Dynamic Time Warping Distance in a Flexible Grounding System

open access: yesEnergies, 2022
A flexible grounding system is a system in which the neutral point of the power supply is grounded via the arc suppression coil in parallel with a low-resistance resistor.
Yu He   +6 more
doaj   +2 more sources

Application Study of Distributed Grounding Line Selection Method Based on GOOSE Communication

open access: yesZhongguo dianli, 2020
A GOOSE communication-based distributed grounding line selection method is introduced and implemented in the relay protection device. When a single-phase grounding fault happens in the small current grounding system, the fault current is quite small due ...
Hongshan CHEN   +4 more
doaj   +2 more sources

Modelling and control of current full compensation system‐based controllable voltage source

open access: yesIET Generation, Transmission & Distribution, 2023
Current active suppression technology of arc overvoltage in distribution network has small capacity of controllable voltage source and complex control and cannot flexibly adjust the zero‐sequence voltage of neutral point.
Hongwen Liu   +3 more
doaj   +2 more sources

Current leakage protection method of coal mine based on time-sharing ratio of phase current amplitude

open access: yesGong-kuang zidonghua, 2015
For the problem that failure current was small of grounding point of neutral point grounding system grounded by arc suppression coil when single-phase ground fault occurs, the paper proposed a kind of current leakage protection method of coal mine based ...
CHEN Zhaoye   +4 more
doaj   +2 more sources

AN OPINION: WHAT AN ECOLOGICAL SYSTEM IS IT? [PDF]

open access: yesManagement of Sustainable Development, 2023
Many controversial debates (including conferences, symposia and of of the same) are generated by misunderstanding of the concepts or, often, by associating wrong terms to the same concept.
DINGA Emil
doaj   +2 more sources

Back-flashover Investigation of HV Transmission Lines Using Transient Modeling of the Grounding Systems

open access: yesIranian Journal of Electrical and Electronic Engineering, 2016
The article presents the transients analysis of the substation grounding systems and transmission line tower footing resistances which can affect to the back-flashover (BF) or overvoltage across insulator chain in an HV power systems by using EMTP-RV ...
F. Amanifard, N. Ramezani
doaj   +1 more source

A Novel Method for Line Selection for Cross-Line Two-Point Successive Grounding Faults Utilizing Transient and Steady-State Information

open access: yesEnergies
In order to improve the performance of an arc suppression coil grounding system in handling cross-line two-point successive grounding faults (CTSGs), the applicability of the transient quantity method and the steady-state quantity method for assessing ...
Yizhao Wang   +3 more
doaj   +2 more sources

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