Hongtu Cheng
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Author Swipe
View article: Research on corona discharge detection by fluorescent optical fiber in multi-insulation media atmosphere
Research on corona discharge detection by fluorescent optical fiber in multi-insulation media atmosphere Open
This study investigates the performance of a fluorescence-based optical fiber sensor in nitrogen, air, SF6, and 30%SF6/70%N2 across varying gas pressures. Three characteristic parameters-maximum pulse amplitude, pulse count, and total puls…
View article: SF <sub>6</sub> decomposition behaviour under partial discharge of typical insulation defects in gas‐solid insulated valve‐side bushing of converter transformer
SF <sub>6</sub> decomposition behaviour under partial discharge of typical insulation defects in gas‐solid insulated valve‐side bushing of converter transformer Open
In this paper we investigated SF 6 decomposition behaviour of typical insulation defects in gas‐solid insulated converter transformer valve‐side bushing under partial discharge (PD). Additionally, we compared the results with that of gas i…
View article: Influence of Light Reflection on the Performance of Cylindrical Chamber-Based Pas Gas Detection System
Influence of Light Reflection on the Performance of Cylindrical Chamber-Based Pas Gas Detection System Open
View article: SF <sub>6</sub> decomposition and insulation condition monitoring of GIE: A review
SF <sub>6</sub> decomposition and insulation condition monitoring of GIE: A review Open
The statistics of the Conference International des Grands Reseaux Electriques (CIGRE) indicate that the operational reliability of SF 6 gas‐insulated equipment (GIE) is very high; however, the failure rate of the GIE in operation is much h…
View article: Research on the selection and layout of the cantilever sensor based on photoacoustic spectroscopy gas detection technology
Research on the selection and layout of the cantilever sensor based on photoacoustic spectroscopy gas detection technology Open
Gas detection has become an indispensable part of the power equipment maintenance. Because of many advantages, cantilever enhanced photoacoustic(PA) spectroscopy was studied by many researchers. In this paper, with the help of Finite Eleme…
View article: Photoacoustic spectroscopy: Trace CO detection by using 10 mW near-infrared laser and cantilever beam
Photoacoustic spectroscopy: Trace CO detection by using 10 mW near-infrared laser and cantilever beam Open
Sulfur hexafluoride (SF6) is commonly used in gas insulated switchgears (GIS) as an insulating medium. When local overheating or partial discharge occurs in GIS, SF6 may be decomposed into various products including CO. In this paper, base…
View article: Dissolved Gas Analysis in Transformer Oil Using Pt-Doped WSe<sub>2</sub> Monolayer Based on First Principles Method
Dissolved Gas Analysis in Transformer Oil Using Pt-Doped WSe<sub>2</sub> Monolayer Based on First Principles Method Open
The composition and content of dissolved gases in transformer oil are closely related to the type of faults in the transformer and the severity of potential hazards. Dissolved gas analysis (DGA) in insulating oil is an important way to mon…
View article: Study on localization of transformer partial discharge source with planar arrangement UHF sensors based on singular value elimination
Study on localization of transformer partial discharge source with planar arrangement UHF sensors based on singular value elimination Open
The large-scale power transformer gap leakage electromagnetic wave partial discharge detection method belongs to the external UHF detection method. This method can perform partial discharge insulation detection on the large-scale power tra…