Results 11 to 20 of about 753,211 (303)

Pilot protection of flexible DC line based on Jaccard similarity integration criterion

open access: yes电力工程技术, 2023
The flexible DC line protection based on the double-ended method with large communication and long action time is greatly affected by factors such as noise, which makes it difficult to set.
LI Zhenxing   +5 more
doaj   +1 more source

Stitched Transmission Line for Broadband Operations [PDF]

open access: yesPhysics Access, 2023
Wearable stitched transmission lines made from stripped RG174 and textile materials are introduced for broadband operations. The stitched transmission lines which are 150 mm long consists of an inner conductor surrounded by a tubular insulating layer ...
Isaac H Daniel   +3 more
doaj   +1 more source

Study on Galloping Oscillation of Iced Twin Bundle Conductors considering the Effects of Variation of Aerodynamic and Electromagnetic Forces

open access: yesShock and Vibration, 2020
Due to the occurrence of whole-span and subspan vibration at the same time during the galloping of the iced bundle conductors, the distance between the subconductors changes, resulting in the variation of the aerodynamic parameters for the leeward ...
Chuan Wu   +5 more
doaj   +1 more source

Effect of bolt tightening force on the transmission tower modal parameters and a method for looseness identification

open access: yesEnergy Reports, 2021
The transmission tower is important structure equipment in the power system. The bolts which connect the angle steel together may loose under the cycle loading. As a further effect, the dynamic behaviors of the tower may change and lead to failure.
Yang Zhao   +5 more
doaj   +1 more source

On the impact toughness of amorphous/crystalline metallic laminates

open access: yesJournal of Materials Research and Technology, 2023
The creation of amorphous/crystalline (A/C) laminated structures offers a promising approach towards the production of damage-tolerant A/C metallic materials.
Xiaoyi Cuan   +5 more
doaj   +1 more source

Fatigue strength evaluation for individual strands of overhead conductors using a biaxial fretting fatigue test bench [PDF]

open access: yesMATEC Web of Conferences, 2019
This paper presents a biaxial fretting fatigue test bench which provides the capability of performing fretting fatigue experiments on individual wires of a conductor combining the effect of both alternating tension and bending loadings to represent a ...
Omrani Amine   +4 more
doaj   +1 more source

Hydrological conditions of river Beas and its Fish fauna in Kullu Valley, Himachal Pradesh, India

open access: yesEnvironment Conservation Journal, 2010
The present communication highlights the hydrological regime of Beas river in Kullu valley which was studied at four sites during the whole year of 2003. Flow of current ranged between 378 - 432 cubic feet /sec.
Ashok Kumar
doaj   +1 more source

Influence of Sheds Damage on the AC Pollution Flashover Performance of Different Voltage Class Composite Insulators

open access: yesIEEE Access, 2020
The damage of high-voltage terminal shed of composite insulators can influence the flashover performance of the insulators. The study was carried out experimentally to investigate the flashover characteristics of composite insulators with sheds damage at
Lu Ming, Li Yangyang, Hu Jianlin
doaj   +1 more source

Simulation Analysis of the Tensile Mechanical Properties of a Hydraulic Strain Clamp-Conductor System

open access: yesAdvances in Materials Science and Engineering, 2020
Herein, a three-dimensional (3D) finite element model of a strain clamp-conductor system is established, with an NY-300/40 compression-type strain clamp taken as an example.
Zhongfei Ye   +5 more
doaj   +1 more source

Accurate small major hysteresis loops calculation by the Preisach model with improved parametric distribution function

open access: yesAIP Advances, 2022
The inversed Preisach hysteresis model is widely used to realize the rapid coupling of hysteresis characteristics of core materials in finite element analysis. However, the small major hysteresis loop is difficult to be accurately simulated.
Long Chen   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy