Results 41 to 50 of about 225,224 (188)

Fusion fault line selection method of small current grounding fault based on VMD

open access: yesGong-kuang zidonghua, 2023
At present, the fault line selection method of coal mine distribution network has the problem of fault line selection failure when the relevant fault features are not obvious.
SUN Kongming   +5 more
doaj   +1 more source

Cavallo's Multiplier for in situ Generation of High Voltage [PDF]

open access: yes, 2018
A classic electrostatic induction machine, Cavallo's multiplier, is suggested for in situ production of very high voltage in cryogenic environments. The device is suitable for generating a large electrostatic field under conditions of very small load ...
Blatnik, Marie A.   +6 more
core   +2 more sources

A Fault-Line Selection Method for Small-Current Grounded System Based on Deep Transfer Learning

open access: yesEnergies, 2022
Usually, data-driven methods require many samples and need to train a specific model for each substation instance. As different substation instances have similar fault features, the number of samples required for model training can be significantly ...
Xianxin Su, Hua Wei
doaj   +1 more source

Case Study on Evaluation of Regional Cathodic Protection Effectiveness and Cathodic Shielding Factors at a Specific Station Site [PDF]

open access: yesCailiao Baohu
In practical applications of regional cathodic protection (CP) technology,problems such as excessive CP current demand and cathodic shielding often occur.To address the limitations of evaluating the regional CP system effectiveness at a specific station ...
WANG Shijun, TIAN Nianpei, WANG Yanqing, XIAO Jianfeng, HU Peng, ZHAO Yunli
doaj   +1 more source

Distribution Network Ground Fault Location Method Based on VMD-TEO and Full Signal Acquisition

open access: yesJournal of Harbin University of Science and Technology, 2023
The small current grounding system is mostly used in distribution network in China. The network structure of distribution network is complex, and difficult to locate fault line.
GUO Liang, WANG Jian ping, GUO Xin
doaj   +1 more source

Measurement of the ICRH antenna phasing using antenna strap probe based diagnostic system in EAST tokamak

open access: yesNuclear Engineering and Technology, 2022
To operate the ion cyclotron resonance heating (ICRH) antennas in a better heating state and produce relatively low impurities, it is necessary to control the antenna spectrum by changing the antenna phasing.
L.N. Liu   +12 more
doaj   +1 more source

Analysis of grounding performance for different bio filler medium effect [PDF]

open access: yes, 2019
The importance of grounding system is when any fault current due to the power system problem, or lightning, can allow that dangerous current passes through the earth.
Abd Karim, Ahmad Zahir Zakwan
core  

Cooperative Use of IMD and GPT in a 3-Phase Ungrounded Distribution System Linked to a Transformerless Photovoltaic Power Generation Facility

open access: yesApplied Sciences, 2023
Distributed generations, using solar photovoltaic (PV) generation systems, are generally connected to ungrounded distribution systems to ensure operational continuity and avoid electro-chemical corrosions.
Hyeon-Myeong Lee   +3 more
doaj   +1 more source

High Power and Long-distance Power Transmission System in Deep Sea Mining

open access: yesKongzhi Yu Xinxi Jishu, 2022
With the depth of seabed mining increasing, required power of deep sea equipment is increasing, its motor power can even be several megawatts. Compared with land power grid, the capacity of ship power grid is small, direct start of high-power motor will ...
ZHU Jianbo, HE Duochang, ZHANG Dinghua
doaj   +3 more sources

Using transfer ratio to evaluate EMC design of adjustable speed drive systems [PDF]

open access: yes, 2006
This paper proposes a way to evaluate the conducted electromagnetic compatibility performance of variable speed drive systems. It is considered that the measured noise level is determined by two factors, the level of the noise source and the conversion ...
Ferreira, B.   +4 more
core   +1 more source

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