The Application of Recurrence Plot in Tracking Characteristics of PU-Based Insulation Material

Cable joints are the weakest part of underground energy transmission systems due to the presence at the interface between the insulation material and the cable conductor. Underground cables serve under heavy service conditions (dust, dirt, humidity, etc.). So, the tracking resistance of polymers use...

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Bibliographic Details
Published in:Arabian journal for science and engineering (2011) 2022-11, Vol.47 (11), p.13907-13915
Main Authors: Ispirli, Mehmet Murat, Ersoy, Aysel
Format: Article
Language:English
Subjects:
Cables
Conductors
Energy transmission
Engineering
Humanities and Social Sciences
Insulation
Leakage current
Low voltage
multidisciplinary
Parameters
Polyurethane resins
Research Article-Electrical Engineering
Science
Tracking
Underground cables
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Summary:Cable joints are the weakest part of underground energy transmission systems due to the presence at the interface between the insulation material and the cable conductor. Underground cables serve under heavy service conditions (dust, dirt, humidity, etc.). So, the tracking resistance of polymers used in joint points of underground cables needs to be determined. In the first section of the study, equivalent samples were prepared under vacuum conditions in laboratory conditions from PU-based filling material used as filler material in low voltage underground cable joints. Prepared samples were tested in an established CTI test setup according to ASTM D5288. Samples were tested in prepared test setup under 600 V, 500 V, 400 V, and 300 V voltages. In the second section of the study, leakage currents were analyzed with the recurrence plot method, which is frequently used in nonlinear times series analysis. Later, recurrence quantification analysis was made by Recurrence Rate (RR) and Determinism (DET) parameters. The behavior of the system occurs less linear with decreased Recurrence Rate in Recurrence Quantification Analysis (RQA). RR and DET parameters increased with the decrease in voltage levels. As a result of, it is revealed that the tracking formation behavior of the PU cable joint becomes more unstable with increasing voltage. Thus, the CTI and RQA are shown to be also available to determine the tracking resistance of cable joints.
ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-022-06584-0