Results 71 to 80 of about 674 (179)

Environmentally Friendly Compact Air-Insulated High-Voltage Substations

Energies, 2018
This paper investigates the possible options for achieving a substantial reduction in a substation footprint using air-insulated switchgear as a more environmentally-friendly alternative to gas-insulated substations that use SF6 gas.
Maurizio Albano, A. Manu Haddad, Huw Griffiths, Paul Coventry   +3 more
doaj   +1 more source

A novel embedded voltage‐clamped circuit for multilevel modular converters submodule to suppress very fast transient overvoltage

High Voltage
The submodule in multilevel modular converters experiences a very fast transient overvoltage (VFTO) during switch operation of gas‐insulated switchgear, which also results in overvoltage on power devices, such as thyristors and insulated gate bipolar ...
Hong Shen, Zhonghao Dongye, Mian Xiao, Jiayi Shao, Xiangyu Zhang, Yao Yao, Zifan Dong, Lei Qi   +7 more
doaj   +1 more source

Research on Online Monitoring of Partial Discharge of Insulation Defects in Air Switchgear Based on Characteristic Gases

Applied Sciences
Air switchgear is an important power equipment in the transmission, transformation, and distribution process of the power system. Insulation defects can lead to partial discharge, which is one of the primary causes of air switchgear failure.
Yi Tian, Haotian Niu, Shuai Wang, Guixin Zhu   +3 more
doaj   +1 more source

Semi-Supervised Learning-Based Partial Discharge Diagnosis in Gas-Insulated Switchgear

IEEE Access
Effective monitoring and diagnosis of partial discharge (PD) in power equipment are crucial for maintenance, particularly given the expectations of significant increases in energy generation and consumption. Although deep neural networks have been widely
Ho Trong Tai, Young-Woo Youn, Hyeon-Soo Choi, Yong-Hwa Kim   +3 more
doaj   +1 more source

Synthesis of Graphene-Based Sensors and Application on Detecting SF6 Decomposing Products: A Review

Sensors, 2017
Graphene-based materials have aroused enormous focus on a wide range of engineering fields because of their unique structure. One of the most promising applications is gas adsorption and sensing. In electrical engineering, graphene-based sensors are also
Xiaoxing Zhang, Hao Cui, Yingang Gui
doaj   +1 more source

Subdomain Adaptation Capsule Network for Partial Discharge Diagnosis in Gas-Insulated Switchgear. [PDF]

Entropy (Basel), 2023
Wu Y, Yan J, Xu Z, Sui G, Qi M, Geng Y, Wang J.   +6 more
europepmc   +1 more source

Review of Insulation Defect Detection Methods for a Gas-Insulated Switchgear

Energies
Gas-insulated switchgear (GIS) is a critical component of modern power systems. During operation, internal defects increase the probability of partial discharge and flashover within the insulation system, thereby constituting a major cause of equipment ...
Tengfei Li, Qin Xu, Kai Gao, Zhiwen Yuan, Junjie Chen, Chuanyang Li   +5 more
doaj   +1 more source

Guest Editorial: Advanced Detection Technology for Partial Discharge in Gas Insulated Equipment

IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
Li Simeng, Han Xutao, Guo Ruochen
wiley   +1 more source

Application of SCNGO-VMD-SVM in Identification of Gas Insulated Switchgear Partial Discharge

IEEE Access
Partial discharge (PD) is one of the main reasons of insulation deterioration in gas insulated switchgear (GIS). How to efficiently and accurately identify PD signals is an important guarantee for the stable operation of GIS.
Wei Sun, Hongzhong Ma, Sihan Wang
doaj   +1 more source

Digital Inference Method for Metal Particle Size Inside Gas Insulated Switchgear

Shanghai Jiaotong Daxue xuebao
Free metal particle defects are one of the frequent discharge defect types in gas insulated switchgear (GIS) equipment. Therefore, accurate estimation of their size and discharge severity is beneficial for understanding the insulation damage of equipment.
ZHANG Changhong, LI Weiguo, YANG Xu, LI Mingyang, WANG Miao, LUO Lin’gen
doaj   +1 more source