Results 61 to 70 of about 4,651 (229)

Finite-difference time-domain simulation of partial discharges in a gas insulated switchgear

High Voltage, 2016
It is important to estimate the current magnitude and charge amount of a partial discharge (PD) in a gas-insulated switchgear (GIS). In this study, electromagnetic fields generated by a PD in an 84 kV-class three-phase GIS for testing have been measured ...
Hiroki Tanaka, Daiki Tanahashi, Yoshihiro Baba, Naoto Nagaoka, Naoki Okada, Hideto Ohki, Masayasu Takeuchi   +6 more
doaj   +1 more source

Accurate Harmonic Voltage Measurement Based on Series Resistive‐Capacitive Divider for Gas‐Insulated Switchgear

IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
A series resistive‐capacitive divider for harmonic voltage measurement of gas‐insulated switchgear was studied. It can step down the voltage while amplifying the proportion of harmonics in the total sensed voltage, thereby increasing the significant figure for the measurement and enabling the accurate measurement of high‐order, low‐amplitude harmonics.
Huizhong Pang, Ruiting He, Fei Liang, Yue Li, Huisi Liu, Wenbo Zhou, Binxian Lu   +6 more
wiley   +1 more source

Review of the decomposition characteristics of eco‐friendly insulation gas

High Voltage, 2021
As one of the major concerns of climate change, identifying a proper eco‐friendly insulation gas for replacing sulphur hexafluoride (SF6) becomes a prominent research topic in recent years.
Yuan Yang, Keli Gao, Lijian Ding, Jiangang Bi, Shuai Yuan, Xianglian Yan   +5 more
doaj   +1 more source

Application of Sensors and Digitalization Based on IEC 61850 in Medium Voltage Networks and Switchgears [PDF]

, 2016
Vzduchem izolované vysokonapěťové rozváděče jsou nedílnou součástí energetického distribučního řetězce a to jak v průmyslovém, tak ve veřejném sektoru. Hlavní funkcí rozváděče je ochrana pracovního personálu, rozpojování/odpojování a spínání, izolování ...
Štefanka, Martin
core  

Mobile Microgrids: Concepts, Key Technologies, Business Models, Applications and Prospects

IET Smart Grid, Volume 9, Issue 1, January/December 2026.
Our study explores MMG concepts, key technologies, business models and applications, illustrating their impact on improving the flexible ADN operation. This study emphasises not only the practical importance of MMGs but also their pivotal role in reshaping the future landscape of energy delivery, offering valuable insights for researchers, policymakers
Tao Ding, Chenggang Mu, Yujie Ding, Shunqi Wang, Rui Song, Mohammad Shahidehpour   +5 more
wiley   +1 more source

Research Status of Substation Vulnerability Under the Coupling Effect of Earthquake and Strong Wind

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
With the progressive advancement of China’s power industry toward higher voltage levels and larger capacity, substations have become critical infrastructures whose resilience to natural disasters requires urgent enhancement. In particular, under the coupled effects of multiple hazards such as earthquakes and strong winds, the optimization of substation
Yihua Gao, Hong Liu, Yijie Wang, Bo Wen, Jiajun Fu, Yi Shan   +5 more
wiley   +1 more source

Diagnostics of Partial Discharge Measurements Utilizing Multi-Sensor Temporal Pulse Sequence Analysis

IEEE Access
This paper presents an improved temporal pulse sequence analysis (PSA) method for diagnosing partial discharge (PD) phenomena. The proposed method enables simultaneous high-resolution PD recognition across electrical sensors and ultra-high frequency ...
Kai Zhang, Alistair Reid, David Clark, Michail Michelarakis, A. Manu Haddad   +4 more
doaj   +1 more source

Detection of Transient Decomposition Products of CF3SO2F and C4F7N via OES Under Spark and Glow Discharges

High Voltage, Volume 10, Issue 6, Page 1582-1592, December 2025.
ABSTRACT The optical emission spectra (OES) reflect the presence of excited states in the gaseous discharge, which are directly linked to the decomposition characteristics of insulating gases. In this study, a pin/rod–plate discharge reactor driven by either a high‐voltage direct current (DC) generator or a pulsed generator was developed to establish ...
Chenxi Man, Jincong Wang, Keli Gao, Yiheng Li, Yumin Zhang, Xuekai Pei   +5 more
wiley   +1 more source

Partial Discharge Detection Method of Fibre‐Composed HVDC Submarine Cable Based on φ‐OTDR and Hilbert Demodulation

High Voltage, Volume 10, Issue 6, Page 1380-1389, December 2025.
ABSTRACT Partial discharge (PD) is the indicator of the insulation defect in cables. However, the pulse current method, which is widely adopted in land cables, cannot obtain PD signals of high‐voltage direct current (HVDC) submarine cables due to attenuation and installation position.
Hang Wang, Haoran Zhang, Lei Li, Shuai Yang, Jun Chen, Bangdou Huang, Cheng Zhang, Tao Shao   +7 more
wiley   +1 more source

TiO2 Nanotube Array Sensor for Detecting the SF6 Decomposition Product SO2

Sensors, 2012
The detection of partial discharge through analysis of SF6 gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment.
Ju Tang, Peng Xiao, Xiaoxing Zhang, Jinbin Zhang, Yichao Jia   +4 more
doaj   +1 more source