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The Discharge Mechanism Leading to the Tracking Progress in Polyvinyl-Chloride-Sheathed Flat Cord

Title
The Discharge Mechanism Leading to the Tracking Progress in Polyvinyl-Chloride-Sheathed Flat Cord
Author
배성우
Keywords
Tracking breakdown; Tracking phenomenon; Tracking progress; Scintillation discharge; Discharge mechanism
Issue Date
2019-01
Publisher
KOREAN INST ELECTR ENG
Citation
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v. 14, Issue 1, Page. 347-353
Abstract
Purposes This paper suggests the mechanism of the discharge phenomenon that leads to tracking progress. Methods For this purpose, a polyvinyl-chloride-sheathed flat cord (PVCSFC), which is widely used as a distribution cord, was employed and an artificial crack was intentionally made on the surface. Tracking was progressed using electrolyte droplets. The mechanism of the discharge phenomenon was suggested from the measurement and analysis of the current waveform. Results As carbonization progressed during the tracking progress, the frequency of scintillation discharge also significantly increased. The mechanism for scintillation discharge during the tracking progress was based on the change in the electric field of the dry band, initial electron, electron avalanche, photoionization, secondary electron generation (electron detachment, photoemission, and secondary electron emission avalanche), space charge due to positive ions, and formation of conductive channels. Conclusions This discharge mechanism could explain the physical phenomenon and change in the current waveform that occurs during the tracking progress.
URI
https://link.springer.com/article/10.1007/s42835-018-00004-whttps://repository.hanyang.ac.kr/handle/20.500.11754/102778
ISSN
1975-0102; 2093-7423
DOI
10.1007/s42835-018-00004-w
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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