Results 11 to 20 of about 667,676 (300)

A novel superimposed component‐based protection method for multi‐terminal transmission lines using phaselet transform

open access: yesIET Generation, Transmission & Distribution, 2023
This paper presents a novel protection method for transmission lines that estimates the superimposed component phasor using phaselet transform. The phaselet transform computes the phasors over variable‐lenfgth data window at the instant of a fault, so it
Sajad Ansari, Navid Ghaffarzadeh
doaj   +1 more source

Overview of Oman Power Transmission System and Protection Schemes for Effective Energy Management in Smart Grid Operations

open access: yesFrontiers in Energy Research, 2021
This article presents an overview of the transmission system and protection schemes employed in the national power grid of Oman. The technical design requirements considering the percentage of allowable limits for the different transmission voltage ...
Saif Al Omairi   +3 more
doaj   +1 more source

ReaxFF-MD in the field of pyrolysis of insulating oil: A review [PDF]

open access: yesE3S Web of Conferences
This article reviews the application of the Reactive Molecular Dynamics (ReaxFF-MD) method in the field of insulating oil. It introduces the commonly used methods for constructing models of insulating oil and oil-paper, summarizes the pyrolysis ...
Yang Weiqi   +6 more
doaj   +1 more source

Study of Transformer Core Vibration and Noise Generation Mechanism Induced by Magnetostriction of Grain-Oriented Silicon Steel Sheet

open access: yesShock and Vibration, 2021
The problem of vibration and noise in the iron core of power transformers remains quite topical. Insofar as the state-of-the-art iron core and binding production adopt the lamination method and weft-free adhesive tape, respectively, the transformer core ...
He Qiang   +5 more
doaj   +1 more source

The study of the electrical properties of nano insulating oil for submarine cables [PDF]

open access: yesE3S Web of Conferences
At present, the alkylbenzene insulation oil for submarine cables of 220kV and above in China relies on imports, which poses high maintenance costs and supply interruption risks.
Tian Chen   +6 more
doaj   +1 more source

HVDC Transmission Line Protection Based on Transient Power

open access: yesProcedia Technology, 2016
AbstractThis paper presents a new protection method for High Voltage Direct Current (HVDC) system based on transient power. Behavior of the HVDC system during fault is studied. Variation of transient power and the relation between various parameters of the line are analyzed during each fault.
Tom, Sherin, Thomas, Jaimol
openaire   +1 more source

Impact of apparent reactance injected by TCSR on distance relay in presence phase to earth fault [PDF]

open access: yes, 2013
This research paper presents the impact study of apparent reactance injected by series Flexible AC Transmission System (FACTS) i.e. Thyristor Controlled Series Reactor (TCSR) on the measured impedance of a 400 kV single electrical transmission line in ...
Chaghi, Abdelaziz, Zellagui, Mohamed
core   +2 more sources

Laboratory investigation of dodecylbenzene diffusion from submarine cables [PDF]

open access: yesE3S Web of Conferences
Oil-filled submarine cables have come to dominate the reliable delivery of electrical power today, but oil leakage still remain a challenge. This work focuses on the exploring of spill behavior of dodecylbenzene (DDB) after leakage and the detection of ...
Liu Zhifeng   +6 more
doaj   +1 more source

Calculation of fault current in MMC-HVDC based on numerical inverse Laplace transform

open access: yes电力工程技术, 2022
The fault transient analysis of the modular multilevel converter based high voltage direct-current (MMC-HVDC) system is an important basis for the refined design of protection strategies and the selection of equipment parameters.
WU Tonghua   +5 more
doaj   +1 more source

Experimental study of transformer oil explosion affected by a vertical steel plate [PDF]

open access: yesAIP Advances
The transformer oil within the piping of ultra-high voltage converter transformers is prone to evaporation, forming a flammable oil–gas mixture. In the presence of an ignition source, an explosion of transformer oil can cause severe damage to the power ...
Yubiao Huang   +3 more
doaj   +1 more source

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