Results 51 to 60 of about 2,277,341 (203)

SF6 decomposition behaviour under partial discharge of typical insulation defects in gas‐solid insulated valve‐side bushing of converter transformer

High Voltage, 2023
In this paper we investigated SF6 decomposition behaviour of typical insulation defects in gas‐solid insulated converter transformer valve‐side bushing under partial discharge (PD).
Hongtu Cheng, Fuping Zeng, Bowen Tang, Haotian Li, Ju Tang, Zujian Huang, Xianzong Chao   +6 more
doaj   +1 more source

Partial Discharge yang Merusak Isolasi SF6 pada Gas Insulated Switchgear (GIS) Tiga Fasa Pengaruh Keberadaan Partikel Asing

JE-Unisla, 2021
This paper analyzes the effect of the presence of foreign particles on an equilateral arrangement of 3 phase gas insulated switchgear (GIS) insulation equipment. Gas Insulated Switchgear (GIS) that uses SF6 insulation, partial discharge will occur as the insulation ages and there are several other factors that affect the insulation.
Abednego Setiabudi Sianturi, Josie Sidharta   +1 more
openaire   +1 more source

Research on Power Frequency Insulation Properties and Configurations of CF3SO2F Gas Mixture for Industrial Applications

High Voltage, Volume 11, Issue 2, Page 556-563, April 2026.
ABSTRACT The breakdown characteristics of the novel eco‐friendly insulating gas CF3SO2F are fundamental to the design of gas‐insulated equipment. In this paper, the gas mixture parameters for CF3SO2F were optimised for different ambient temperatures in order to ascertain the insulation performance and liquefaction temperature constraints.
Shubo Ren, Wenjun Zhou, Yu Zheng, Dongxin Hao, Wei Liu, Keli Gao   +5 more
wiley   +1 more source

STUDI TENTANG SISTEM INTERLOCKING PADA GAS INSULATED SWITCHGEAR(GIS) 500 KV DI PLTU PAITON UNIT 7 DAN 8 [PDF]

, 2010
Electrical energy is one of energy that has the role in all sectors so that the availability of power required by large amount as well as sustainable. PLTU Paiton Unit 7 and 8 is one of the private power company that attempts to meet the high demand for ...
., Jasmadi, Prabowo, Gigih, BIMANTARA, ADITYA, Nansur, Ainur Rofiq, Mulyadi, Eddy   +4 more
core  

Chromatic processing for feature extraction of PD-induced UHF signals in GIS

Global Energy Interconnection, 2020
Partial discharge (PD) detection is an effective means of discovering insulation faults in gas-insulated switchgear (GIS). One of the most extensively used methods in PD detection has historically been the ultrahigh frequency (UHF) method.
Xi Li, Zhixiang Wang, Xiaohua Wang, Mingzhe Rong, Di Liu   +4 more
doaj   +1 more source

Discrimination of Insulation Defects in a Gas Insulated Switchgear (GIS) by use of a Neural Network Based on a Chaos Analysis of Partial Discharge (CAPD) [PDF]

Journal of Electrical Engineering and Technology, 2007
In this work, experimental investigation is carried out in order to design and fabricate the UHF sensor that is able to detect the partial discharges produced from 10 artificial defects introduced into the real scale 70kV GIS mock-up under high voltage within a well shielded room. As well, in order to verify the on-site applicability of our method, the
Seoung-Yong Jung, Cheol-Hwi Ryu, Yun-Sok Lim, Ja-Ho Lee, Ja-Yoon Koo   +4 more
openaire   +1 more source

Spectral Characteristics and Evolution Mechanism of Silicon Rubber Surface Discharge Under Thermal Ageing Condition

High Voltage, Volume 11, Issue 1, Page 192-200, February 2026.
ABSTRACT Surface discharge is a typical fault type in electric power equipment. High temperature in long‐term operation can easily lead to ageing of materials, resulting in changes in surface characteristics and surface discharge faults. In this paper, a method of surface discharge identification of silicon rubber (SiR) based on spectral detection ...
Yanze Han, Liankang Zhang, Beibei Sun, Lu Liu, Guochang Li, Shengtao Li, Yanhui Wei   +6 more
wiley   +1 more source

Nondestructive Measurement of Residual Stress on Epoxy Insulators Using Thermoelastic Method

High Voltage, Volume 11, Issue 1, Page 274-283, February 2026.
ABSTRACT Residual stress is inevitable in epoxy insulators, which easily leads to small cracks and even insulation breakdown during the operation of gas‐insulated transmission line (GIL)/gas‐insulated switchgear (GIS). This study proposes a nondestructive method to measure the residual stress on epoxy insulators using thermoelastic effects.
Hucheng Liang, Bei Chu, Boxue Du
wiley   +1 more source

Quantitative Evaluation of Mechanical Defects for Circuit Breakers Based on Self‐Adaptive Fault Feature Tracking

High Voltage, Volume 11, Issue 1, Page 297-304, February 2026.
ABSTRACT Many researchers are committed to improving the diagnosis accuracy and solving the few‐shot problem on circuit breakers (CBs). However, the research on the vibration transmission mechanism of the fault is insufficient, which makes it difficult to find the potential design defects of CBs through vibration.
Jiayi Gong, Yaxiong Tan, Shangding Li, Jian Li   +3 more
wiley   +1 more source

Necessity of overvoltage protection studies for gas-insulated switchgear [PDF]

, 2017
Kaasueristeisten kytkinlaitosten määrä kantaverkossa lisääntyy tulevaisuudessa merkittävästi erityisesti korvausrakentamisen myötä. Kaasueristeinen kojeisto on herkkä ylijännitteille ja aiheuttaa vikaantuessaan pitkän keskeytyksen sähkönsiirtoon sekä ...
Tammi, Veli Juhani
core   +1 more source