Detection of SO2F2 concentration of SF6 decomposition product in GIS gas chamber based on ICL-TDLAS

2021 ◽  
Author(s):  
Qiang Yao ◽  
Xianglian Yan ◽  
Shukai He ◽  
Rubin Qi ◽  
Xintian Li ◽  
...  
Keyword(s):  
Decomposition Product ◽  
Sf6 Decomposition ◽  
Gas Chamber

scholarly journals TiO2 Nanotube Array Sensor for Detecting the SF6 Decomposition Product SO2

Sensors ◽  
2012 ◽  
Vol 12 (3) ◽  
pp. 3302-3313 ◽  
Author(s):  
Xiaoxing Zhang ◽  
Jinbin Zhang ◽  
Yichao Jia ◽  
Peng Xiao ◽  
Ju Tang
Keyword(s):  
Decomposition Product ◽  
Tio2 Nanotube ◽  
Tio2 Nanotube Array ◽  
Nanotube Array ◽  
Array Sensor ◽  
Sf6 Decomposition

Influence of Vibration on Optical Detection of SF6 Decomposition Product CF4

2021 ◽  
Author(s):  
Baojia Deng ◽  
Shiling Zhang ◽  
Wenyan Gan ◽  
Xiaoxiao Luo ◽  
Zi Zhang
Keyword(s):  
Decomposition Product ◽  
Optical Detection ◽  
Sf6 Decomposition

Recognition of Protrusion Defect Fault in Gas Insulated Switchgear Base on SF6 Decomposition Product

2018 ◽  
Vol 8 (1) ◽  
pp. 131
Author(s):  
Visa Musa Ibrahim
Keyword(s):  
Preventive Maintenance ◽  
Decomposition Product ◽  
Partial Discharge ◽  
Sulphur Hexafluoride ◽  
Decomposition Products ◽  
Gas Insulated Switchgear ◽  
Product Method ◽  
Ftir Spectrometer ◽  
Sf6 Decomposition ◽  
The Impact

A solid analytic procedure of Gas insulated switchgear condition checking is utilized in this studies as a part of exploration for the detection of sulphur hexafluoride gas (SF6) decomposition by-product because of its high affectability, reliability and anti-electromagnetic obstruction. This is known as chemical decomposition by-product method. A simulated coaxial deterioration chamber was designed and used on the high voltage electrode to re-enact the decomposition of SF6 under the impact of protrusion defect that generates partial discharge in the coaxial chamber at a pressure of 0.2MPa.The chamber is energised at 50kv for the period of 50 hours and the generated partial discharge simulate the decomposition of SF6 gas. The deterioration decomposition products SO2, SOF2, SO2F2, SO2F10, SiF4, CO, C3F8, C2F6 were detected offline by FTIR spectrometer. These deteriorated items and its concentration can be utilized to recognize and distinguish the type and the magnitude of fault in gas insulated switchgear (protrusion fault) before failure occur for the aim of preventive maintenance.

scholarly journals Analysis of Suspended Potential Discharge Defects by SF6 Decomposition Products

2021 ◽  
Vol 898 (1) ◽  
pp. 012009
Author(s):  
Lijun Fu ◽  
Yanling Guan ◽  
Liang Zhang ◽  
Jian Zhang
Keyword(s):  
Reaction Mechanism ◽  
Decomposition Product ◽  
Circuit Breaker ◽  
Normal Operation ◽  
Forming Process ◽  
Decomposition Products ◽  
Iron Aluminum ◽  
Column Type ◽  
Sf6 Decomposition ◽  
Solid Decomposition

Abstract The type and content of SF6 decomposition products are directly related to the type, location and degree of fault. Based on the analysis of the abnormal SF6 gas decomposition product content and discharge type of 126kV Porcelain Column type circuit breaker, the potential fault of the circuit breaker is judged to be suspension potential discharge fault. After disassembling the circuit breaker, it is found that the abnormal phase of the insulation rod is deformed, the pin become thin, and there are solid decomposition products, the sulfides and fluoride, which are mainly composed of iron, aluminum, chromium and manganese, further confirm that the potential fault of the circuit breaker is suspension potential discharge fault. The forming process and reaction mechanism of the suspended potential discharge fault are analyzed. Once the fault occurs, its function will promote the development of the fault. The influence of the suspension potential discharge fault on the performance of the circuit breaker is also analyzed. When the suspension potential discharge fault exists, it will cause the abnormality and even affect the normal operation of the circuit breake.

scholarly journals Influence of polarity and pressure on the SF6 decomposition characteristics under DC voltage

2021 ◽  
Vol 687 (1) ◽  
pp. 012107
Author(s):  
Jiaqiang Wei ◽  
Lipeng Zhong ◽  
Shangkun Gong ◽  
Bin Tang ◽  
Tao Wan ◽  
...  
Keyword(s):  
Dc Voltage ◽  
Sf6 Decomposition
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