Deposition of SiO<sub>x</sub> film on electrode surface by DBD to improve the lift-off voltage of metal particles

Wang, Ruixue; Cui, Chaochao; Zhang, Cheng; Ren, Chengyan; Gen-yong, Chen; Shao, Tao

doi:10.1109/tdei.2018.007157

Cited by 25 publications

(9 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, when the coaxial electrode is arranged and the negative DC voltage is applied, the linear and flaking particles present the phenomenon of " flying firefly", which not only bump around the high-voltage electrode, but also do not contact the ground electrode [136,137] , as is shown in Figure 34. In addition, for the movement characteristics of metal powder under DC voltage, there is a phenomenon similar to sand storm [138,139] . These special circumstances bring great difficulties to the capture and removal of metal particles in DC gasinsulated equipment.…”

Section: Metal Particlementioning

confidence: 99%

China's 10-year progress in DC gas-insulated equipment: From basic research to industry perspective

Zhang

et al. 2022

iEnergy

View full text Add to dashboard Cite

The construction of the future energy structure of China under the 2050 carbon-neutral vision requires compact direct current (DC) gas-insulation equipment as important nodes and solutions to support electric power transmission and distribution of long-distance and large-capacity. This paper reviews China's 10-year progress in DC gas-insulated equipment. Important progresses in basic research and industry perspective are presented, with related scientific issues and technical bottlenecks being discussed. The progress in DC gas-insulated equipment worldwide (Europe, Japan, America) is also reported briefly.

show abstract

Section: Metal Particlementioning

confidence: 99%

China's 10-year progress in DC gas-insulated equipment: From basic research to industry perspective

Zhang

et al. 2022

iEnergy

View full text Add to dashboard Cite

show abstract

“…In the gas-insulated device, the dielectric-coated electrode has developed into a common technique to inhibit conductive particles migration. As a premise, the charging characteristics of particles immersed in gas medium had been extensively investigated in the case with dielectric barrier [79][80][81][82]. It was found that the lifting voltage or charge amount depends on barrier material, thickness, gas pressure, voltage type and so on.…”

Section: Effect Of Dielectric Barriermentioning

confidence: 99%

Review about PD and breakdown induced by conductive particles in an insulating liquid

et al. 2020

View full text Add to dashboard Cite

In insulating liquid, a conductive particle becomes charged through the interaction with a conductor exposed to an applied field. Then, it migrates in the action of both electric field and fluid and causes the enhancement of local field when it is in proximity of the conductor with opposite polarity. The enhancement will lead to partial discharge (PD) and may even ignite full gap breakdown in special cases. This study reviews comprehensive researches relevant to these topics. In the first place, several theoretical methods about how to obtain the charges held by a conductive particle with known potential are introduced, so are experimental methods. Then, forces acting on the charged particle in liquid are classified, and its migration characteristics, as well as influential factors, are described. Subsequently, PD and breakdown mechanisms of liquid initiated by conductive particles are presented. The latter involves two cases: electric-field enhancement when the particle concentration is low and bridging phenomenon when it is high. At last, two important, but frequently ignored factors, i.e. dielectric barrier and oil flow, are highlighted, and the authors' suggestions for future work are put forward.

show abstract

“…For instance, to measure a non-conductive multilayer, an irregular or uneven roughness surface, and welding testing embedded material without dismantling operation. This could be applied for fuselage skin painted, varnished materials, and material composite laminated [5]. Furthermore, the LO distance was used to prevent the probe from high-temperature damage in the heat treatment status while inspecting the material [6].…”

Section: Introductionmentioning

confidence: 99%

Lift-Off Effect Evaluation by Using Eddy Current Testing Technique on Copper (C101)

Sulaiman¹,

Harun²,

Eldy³

2023

IJETAE

View full text Add to dashboard Cite

This study aims to develop an eddy current testing (ECT) probe that generates eddy current signals when a coil is placed above copper101 metal testing with and without nonconductive coating and the presence of lift-off height, i.e., 0, 2.5, 5.0, 7.5, and 10.0 0.5 mm. Then, the metal test with a variety of thicknesses, i.e., 1.5, 3.0, and 5.0 0.5 mm, and with varies of surface defects, i.e., 10, 20, and 30  0.5 mm, engraved on the metal testing. The coil probe is a rodshaped solenoid coil designed with an iron core with 65 mm length, 5 mm area, and 200 N turns. It demonstrates how the rod-shaped solenoid coil may be used to detect various surface defects on copper101 (C101). The optimal frequencies for C101 are 7.850 MHz. In conclusion, the output voltage signals for larger surface defect sizes increase but decrease as the thickness becomes thicker. Furthermore, as the lift-off height increases, the output voltage for both coated and non-coated metal decreases accordingly. Therefore, besides comparing the output voltage for coated and non-coated metals, there are minor differences which shows that the ECT technique in this studyis capableto detect surface defects appropriately.

show abstract

Deposition of SiO_x film on electrode surface by DBD to improve the lift-off voltage of metal particles

Cited by 25 publications

References 38 publications

China's 10-year progress in DC gas-insulated equipment: From basic research to industry perspective

China's 10-year progress in DC gas-insulated equipment: From basic research to industry perspective

Review about PD and breakdown induced by conductive particles in an insulating liquid

Lift-Off Effect Evaluation by Using Eddy Current Testing Technique on Copper (C101)

Contact Info

Product

Resources

About

Deposition of SiOx film on electrode surface by DBD to improve the lift-off voltage of metal particles

Cited by 25 publications

References 38 publications

China's 10-year progress in DC gas-insulated equipment: From basic research to industry perspective

China's 10-year progress in DC gas-insulated equipment: From basic research to industry perspective

Review about PD and breakdown induced by conductive particles in an insulating liquid

Lift-Off Effect Evaluation by Using Eddy Current Testing Technique on Copper (C101)

Contact Info

Product

Resources

About

Deposition of SiO_x film on electrode surface by DBD to improve the lift-off voltage of metal particles