Results 71 to 80 of about 644 (184)

Simulation and Characterization of Micro-Discharge Phenomena Induced by Glitch Micro-Defects on an Insulated Pull Rod Surface

Energies
The reliability of GIS (gas-insulated switchgear) circuit breakers significantly depends on the condition of the insulated pull rods, with micro-defects on their surface posing a potential risk for micro-discharges and breakdown incidents. Experimentally
Shu Niu, Shuai Li, Jizhong Liang, Guodong Li, Fan Hu, Hai Zhang, Yujie Zhu, Xianhao Fan, Chuanyang Li   +8 more
doaj   +1 more source

Study on surface flashover characteristics of basin-type insulators under low-frequency transmission based on multiphysics coupling

Zhejiang dianli
To study the surface flashover characteristics of single-phase basin-type insulators in gas insulated metal-enclosed switchgear （GIS） under low-frequency transmission， an electro-thermal-fluid coupling simulation is employed.
LI Guoqiang, BIAN Rong, CHEN Keji, ZHANG Linlin, GU Miaosong, CHENG Zhi, WANG Chao   +6 more
doaj   +1 more source

One-Shot Learning for Partial Discharge Diagnosis Using Ultra-High-Frequency Sensor in Gas-Insulated Switchgear. [PDF]

Sensors (Basel), 2020
Tuyet-Doan VN, Do TD, Tran-Thi ND, Youn YW, Kim YH.   +4 more
europepmc   +1 more source

3D Printing Technique-Improved Phase-Sensitive OTDR for Breakdown Discharge Detection of Gas-Insulated Switchgear. [PDF]

Sensors (Basel), 2020
Chen Z, Zhang L, Liu H, Peng P, Liu Z, Shen S, Chen N, Zheng S, Li J, Pang F.   +9 more
europepmc   +1 more source

Investigating the characteristics of internal discharge shock waves in gas‐insulated switchgear under varied gap configurations

IET Generation, Transmission & Distribution
Gas‐insulated switchgears (GIS) are crucial components of high‐voltage power transmission and distribution systems. Internal discharges within GIS have garnered significant attention in the field of power engineering.
Chenglong Jia, Peng Haochu, Wenbin Zhao, Zhong Tang   +3 more
doaj   +1 more source

Improving the Error of Time Differences of Arrival on Partial Discharges Measurement in Gas-Insulated Switchgear. [PDF]

Sensors (Basel), 2018
Jiang J, Wang K, Zhang C, Chen M, Zheng H, Albarracín R.   +5 more
europepmc   +1 more source

Method for Sensing the Temperature Rise Rate of GIS Busbar Conductors Considering Transient Ambient Temperature

IET Science, Measurement & Technology
Currently, the perception of temperature rise inside the gas insulated switchgear (GIS) is mainly achieved by fitting and training steady‐state temperature values, whereas abnormal temperature rise is a long and slow transient process, so there is a lack
Hangyu Cao, Xiaoxin Chen, Feiran Li, Lingen Luo, Gehao Sheng, Xiuchen Jiang   +5 more
doaj   +1 more source

UHF Signal Processing and Pattern Recognition of Partial Discharge in Gas-Insulated Switchgear Using Chromatic Methodology. [PDF]

Sensors (Basel), 2017
Wang X, Li X, Rong M, Xie D, Ding D, Wang Z.   +5 more
europepmc   +1 more source

Shape optimisation of basin insulator for DC gas insulated switchgear/gas insulated transmission lines based on artificial bee colony algorithm

High Voltage
The surface charge accumulation on the basin insulator is a particular problem in high‐voltage direct current (HVDC) gas insulated switchgears (GIS) and gas insulated transmission lines (GIL), which restricts the development and application of extra ...
Yi Luo, Shiyi Mao, Ju Tang, Zijun Pan, Cheng Pan   +4 more
doaj   +1 more source

Metal particle contamination in gas-insulated switchgears/gas-insulated transmission lines

CSEE Journal of Power and Energy Systems, 2021
Jian Wang, Qi Hu, Yanan Chang, Jingrui Wang, Ruixue Liang, Youping Tu, Chuanyang Li, Qingmin Li   +7 more
openaire   +1 more source