Results 21 to 30 of about 314,581 (221)

Measurement and analysis of impulse grounding impedance of tower grounding device subjected to artificial lightning M‐component

IET Generation, Transmission & Distribution, 2023
The impulse grounding impedance of tower grounding device is one of the important factors in the lightning protection evaluation of transmission line. The impulse characteristic test of the actual tower grounding device under lightning was rarely carried
Yi Zhang, Hansheng Cai, Ruihan Qi, Taishan Hu, Lei Jia, Gang Liu, Yongcong Wu, Shangmao Hu   +7 more
doaj   +1 more source

Modeling of different tower grounding systems using hybrid continuous circuit-trapezoidal integration method [PDF]

Serbian Journal of Electrical Engineering, 2021
In order to protect the transmission lines against lightning strikes, it is important to investigate the tower grounding system. In this paper, a recent method called hybrid continuous circuit-trapezoidal integration method is used to calculate ...
Asadpourahmadchali Mohammadbagher, Niasati Mohsen, Alinejad-Beromi Yousef   +2 more
doaj   +1 more source

Equivalent circuit model of tower based on full-wave analysis

Energy Reports, 2022
The tower model is very important for the assessment of lightning protection for transmission line. The parameters of tower model mainly rely on the impulse experiments of tower.
Chun Li, Shengfu Wang, Wei Wang, Chenglei Zhang, Ling Jiang, Xishan Wen, Hailiang Lu   +6 more
doaj   +1 more source

Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]

, 2006
In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Jorge Ramirez, Baudilio Valecillos, Valecillos, Baudilio, Ramírez, Jorge   +3 more
core   +3 more sources

Study on debugging of lightning impulse voltage waveform for large capacity ±800kV converter transformer in high altitude area

Frontiers in Energy Research, 2023
The Qinghai-Henan ±800kV UHV DC power transmission project is an UHV channel specially constructed for clean energy delivery, ±800kV converter transformers of the project are assembled and tested in Xining at an altitude of 2500 m, full-wave lightning ...
Ling Jiang, Ling Jiang, Shengfu Wang, Shengfu Wang, Jun Kang, Xiaoku Yang, Xiaoku Yang, Xiuyuan Yao, Yitao Zhang, Yitao Zhang, Zhenghong Bao, Zhenghong Bao, Yongsheng Zhang   +12 more
doaj   +1 more source

Tower impulse grounding resistance measurement based on multiple frequency impedance

IET Generation, Transmission & Distribution, 2023
Tower impulse grounding resistance is important for judging the lightning protection performance of transmission lines. Therefore, it is significant to accurately measure the tower impulse grounding resistance. Existing measurement methods mainly contain
Yihua Dan, Ruixuan Zhang, Yongye Wu, Yiqiao Li, Xuement Wang, Jian Yang   +5 more
doaj   +1 more source

Study on the reliability of new kind of ±1 100 Kv DC voltage divider under the action of impulse voltage

The Journal of Engineering, 2019
To meet the special insulation demand of the DC transmission system with the highest voltage in the world, a new kind of ±1 100 kV DC voltage divider is designed.
Wu Shipu, Pang Wenlong, Yang Zhining, Zhang Kejie, Wu Xixiu   +4 more
doaj   +1 more source

Impacts of Lightning-Induced Overvoltage on a Hybrid Solar PV–Battery Energy Storage System

Applied Sciences, 2021
With increased electrical energy demands projected in the future, the development of a hybrid solar photovoltaic (PV)–battery energy storage system is considered a good option. However, since such systems are normally installed outdoors and in open areas,
Nor Izzati Ahmad, Zaipatimah Ali, Mohd Zainal Abidin Ab. Kadir, Miszaina Osman, Nur Hazirah Zaini, Muhammad Hakirin Roslan   +5 more
doaj   +1 more source

Analysis and Application of New Lightning Protection Equipment of Distribution Lines in Shaanxi Province

Zhongguo dianli, 2019
Based on the operation situation of the lightning arresters commonly used in Shaanxi Province, a lightning arrester with multi-short-gaps is developed, which has excellent ability in extinguishing arc.
Zeli JU, Xinliang LV, Lu PU, Xuefeng ZHAO, Zhe HOU, Zejun LU, Jun WU   +6 more
doaj   +1 more source

An Improved Parametric Method for Selecting Different Types of Tesla Transformer Primary Coil to Construct an Artificial Lightning Simulator

IEEE Access, 2023
Due to the intermittent and hazardous nature of lightning impulse, researchers rely on artificial impulse generators to study it. The Tesla coil is a commonly used device to generate artificial lightning.
Suman Jana, Pabitra Kumar Biswas, Thanikanti Sudhakar Babu, Hassan Haes Alhelou   +3 more
doaj   +1 more source