Results 21 to 30 of about 8,357 (239)

Insulator fault feature extraction system of substation equipment based on machine vision

open access: yesIET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang   +4 more
wiley   +1 more source

CCXXVI.—Overvoltage [PDF]

open access: yesJ. Chem. Soc., Trans., 1914
n ...
openaire   +1 more source

Evaluation of lightning overvoltage at neutral point of HVDC converter transformer based on EMTP

open access: yesEnergy 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

Effect of the drop out fuse connection scheme on the overvoltage and the surge arrester in a distribution system

open access: yesEnergy Reports, 2023
Overvoltage is a critical problem of Thailand’ distribution system. The electrical protection device in the distribution system needs to be able to support this level of overvoltage.
Chaiyaporn Lothongkam   +2 more
doaj   +1 more source

The problem of the actual insulation coordination for 500 kV with overvoltage in substations and the needed for more surge arresters in high voltage grid

open access: yesAin Shams Engineering Journal, 2023
The new extra high voltage overhead lines and substations have increased the overvoltage phenomenon in the electrical interconnected system, especially in high voltage circuit breakers operate in a failure condition.
Ricardo Manuel Arias Velásquez   +1 more
doaj   +1 more source

Overvoltage

open access: yesTransactions of The Electrochemical Society, 1938
The overvoltage of hydrogen was measured on platinum, silver, copper, gold, tin, iron, zinc, lead, and nickel ; likewise the overvoltage of oxygen on platinum and on gold in potassium hydroxide solutions. Colloidal metal, if present in the electrolyte, changed the overvoltage. Rotating the electrode decreased the overvoltage.
Herschel Hunt   +2 more
openaire   +1 more source

Influence of the VSC-HVDC System Structure on the Overvoltage of Single-Pole Grounding Fault

open access: yesZhongguo dianli, 2021
Flexible operation mode is one of the VSC-HVDC system’s advantages, and the power system may continue to operate in the future with different grid structures under maintenance and other working conditions.
Jialing WU, Tiebing LU
doaj   +1 more source

The nature of overvoltage [PDF]

open access: yesJournal of the Society of Chemical Industry, 1913
n ...
openaire   +3 more sources

PROTECTION OF 35 KV OVERHEAD TRANSMISSION LINE FROM THE INDUCED LIGHTNING OVERVOLTAGE

open access: yesElektrotehnìka ta Elektroenergetika, 2018
Purpose. Develop recommendations for determining the optimal places for the installation of nonlinear overvoltage limiters for the protection of overhead transmission lines from the influence of lightning overvoltage on the basis of the model of the ...
V. V. KYRYK, S. A. ABDULAIEV
doaj   +1 more source

Research on Formation Mechanism and Suppression Measures of Internal Overvoltage for High-speed Train

open access: yes机车电传动, 2020
Aiming at the internal overvoltage phenomenon during high-speed train operation, the overvoltage formation mechanism and its influencing factors were analyzed by taking the case of the overvoltage in passing neutral section and the overvoltage of ...
Shanqiang GU   +4 more
doaj  

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