Results 11 to 20 of about 21,938 (263)

Transient Characteristics and Line Selection of Two-Point Grounding Faults on Same Phase in Resonant Grounding System

open access: yesZhongguo dianli, 2022
Aiming at the low accuracy problem in line selection of two-point grounding faults on same phase in distribution network, a new fault feeder identification method suitable for two-point grounding faults on same phase in resonant grounding systems is ...
Yingtong LIU   +3 more
doaj   +1 more source

Fault location of single-phase grounding fault based on Manhattan average distance and cosine similarity in distribution network

open access: yes电力工程技术, 2023
Aiming at the problem of insufficient sensitivity of existing fault location methods when single-phase grounding fault occurs in resonant grounding system of active distribution network, a fault location algorithm based on Manhattan average distance and ...
TAO Weiqing   +5 more
doaj   +1 more source

Harmonic Current Distribution in Grounding Systems of Cabled Medium Voltage Grids during Single-Pole Ground Fault

open access: yesEnergies, 2021
The design of every power supply system must guarantee the safety for human life even in the event of a fault. Due to the system change in the electrical power supply, the fault current contains more and more unknown shares of current harmonics ...
Benjamin Küchler   +2 more
doaj   +1 more source

Identification of Single-Phase Line Break Fault Direction Based on Local Voltage Information in Small Current Grounding System Considering the Impact of DG

open access: yesIEEE 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

Fault line selection method for coal mine power grid based on RCMDE and KFCM

open access: yesGong-kuang zidonghua, 2022
It is difficult to accurately select the fault line when the single-phase ground fault occurs in the coal mine power grid with the widely used resonant grounding system.
HAN Guoguo   +4 more
doaj   +1 more source

Ground fault protection methods for distribution systems [PDF]

open access: yes, 2016
The system grounding method option has a direct influence on the overall performance of the entire medium voltage network as well as on the ground fault current magnitude.
Nogueira, Teresa   +1 more
core   +2 more sources

New line selection method of resonant grounding system based on energy and correlatio

open access: yesGong-kuang zidonghua, 2016
In view of problem that single line selection method of resonant grounding system prones to misjudgment and is easily affected by the training samples, new line selection method of resonant grounding system based on energy and correlation was proposed ...
YANG Xinwei, LIU Weina, JIANG Bo
doaj   +1 more source

Fault Identification Technology of 66 kV Transmission Lines Based on Fault Feature Matrix and IPSO-WNN

open access: yesApplied Sciences, 2023
Due to the barely resonant earthed system used in the transmission line, it is more challenging to identify faults at a 66 kV voltage level because of insufficient fault identification techniques.
Qi Zhang   +5 more
doaj   +1 more source

Quantum Computer Using Coupled Quantum Dot Molecules [PDF]

open access: yes, 1999
We propose a method for implementation of a quantum computer using artificial molecules. The artificial molecule consists of two coupled quantum dots stacked along z direction and one single electron.
Kamada, M.   +3 more
core   +2 more sources

Small Antenna Design of Triple Band for WIFI 6E and WLAN Applications in the Narrow Border Laptop Computer

open access: yesInternational Journal of Antennas and Propagation, 2021
This paper presents the design of a small antenna for use in a wireless local area network (WLAN) and Wi-fi 6E on a narrow-border laptop. The dimensions of the antenna are 43 × 3 × 0.4 mm3, and it features a grounding system simulated by a 200 × 260 mm2 ...
Wei-Chiang Jhang, Jwo-Shiun Sun
doaj   +1 more source

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