Results 101 to 110 of about 1,373 (216)

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

Nanocrystalline based Mitigation Technique for Very Fast Transient over Voltages in Gas Insulated Substations

, 2021
: in gas insulated substations, issue of very fast transient over voltages is very familiar problem because of its effects on live ultra-high voltage equipment.
et. al., R.Durga Rao,
core  

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

Characteristics investigation of R407C in high voltage applications as an alternative to SF6

Results in Engineering
The concept of life without electrical power is not possible. All the industrial, domestic zones etc., requires power to operate, which is transmitted by means of overhead high voltage transmission lines from generating stations to sub-stations.
Imad M. Khattak, Faisal Khan, Syed Zulfiqar Ali, Rahmat Ullah, Irshad Ullah, Muhammad Adeel Khan, Khalid Rehman, Aftab Zaman Awan   +7 more
doaj   +1 more source

Application of Optical Fiber Distributed Sensing System in Substation Maintenance

Guangtongxin yanjiu, 2023
During daily operation of Substation, if Gas Insulated Switchgear (GIS)equipment breaks down, it will lead to the suspension of substation power supply, and national production and life cannot be guaranteed.
BAI Bin, YU Yue-zhong, ZHAO Hui-long, LU Yin, ZHU Lei, MA Wen-liang   +5 more
doaj  

Research on lightning over-voltage in 1000kV gas insulated switchgear substation

, 2012
This paper investigates the lightning over-voltage process of a 1000 kV ultra-high voltage(UHV) gas insulated switchgear(GIS) substation by the help of one electromagnetic transient simulation software, Electromagnetic Transients Program-Alternative ...
Hu, J, Xu, W, Zhang, Y, Zhu, J, Liu, N
core   +1 more source

STUDI KELAYAKAN PMT SF6 150kV PADA GAS INSULATED SWITCHGEAR (GIS) [PDF]

Penelitian ini mengevaluasi kelayakan operasi pemutus tenaga (PMT) 150kV SF₆ pada Gas Insulated Switchgear (GIS) Kota Barat, Demang, Palembang berdasarkan pengujian tiga parameter: tahanan isolasi, tahanan kontak, dan keserempakan kontak.
Latif, M. Rosyidi
core  

Health index and risk assessment models for Gas Insulated Switchgear (GIS) operating under tropical conditions

, 2019
This article contains the development of the Health Index (HI) and the Risk Assessment (RA) models for Gas Insulated Switchgear (GIS) operating under tropical conditions.
Mor, A. R. (author), Purnomoadi, A.P. (author), Smit, J.J. (author)   +2 more
core   +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

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