Results 21 to 30 of about 14,477 (264)
Gong-kuang zidonghua, 2014 In view of problems of complex fault situation and unobvious characteristics of fault signal of fault line selection method of existing small current grounding system, a fault line selection method of small current grounding system based on wavelet ...
WANG Xiaowei +3 more
doaj +1 more source
Modelling and control of current full compensation system‐based controllable voltage source
IET 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 +1 more source
Evaluation of lightning overvoltage at neutral point of HVDC converter transformer based on EMTP
Energy Reports, 2022 In order to ensure the safe and stable operation of high voltage direct current (HVDC) systems, this paper studies the lightning overvoltage at the neutral point of the HVDC converter transformer.
Zhe Hu +4 more
doaj +1 more source
Fault Line Selection Method of Small Current Grounding System Based on Deep Learning
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 +1 more source
Energies, 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 +1 more source
Single-Phase Fault Line Selection in Distribution Network Based on Signal Injection Method
IEEE Access, 2021 The distribution network with small current grounding mode can ensure high power supply reliability, but it is difficult to locate single-phase grounding fault line. Most of the faults in distribution network are single-phase to ground fault.
Lin Niu, Guiqing Wu, Zhangsheng Xu
doaj +1 more source
Zhongguo dianli, 2021 AC filter is an important equipment in DC transmission system. This paper mainly analyzes the influence of simulation model on the electrical characteristics (overvoltage, current and absorbed energy) of the arresters for AC filter, and carries out the ...
Xuemin HUANG +4 more
doaj +1 more source
International Journal of Electrochemical Science, 2021 Aimed at the corrosion caused by the ground current of the high-voltage direct current (HVDC) transmission system to adjacent buried pipelines, horizontal delamination is carried out according to different soil conductivities, and a field-circuit ...
Shan Lin +3 more
doaj +1 more source
IEEE Access, 2023 Line break faults commonly occur in distribution networks and pose the risk of electric shocks to nearby individuals and animals. This study aims to address the challenge of identifying the direction of a line break fault.
Fan Yang +5 more
doaj +1 more source
Gong-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 +1 more source