Research on Mechanical, Physicochemical and Electrical Properties of XLPE-Insulated Cables under Electrical-Thermal Aging
Joint Authors
Li, Qingquan
Wang, Wei
He, Dongxin
Zhang, Tao
Ma, Meng
Gong, Wenjie
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-03
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The stabilization of cross-linked polyethylene (XLPE) cables is crucial to the safe working of power systems.
In order to investigate the aging characteristics of cable insulation in the process of operation, 10 kV XLPE cables were electrically-thermally aged at an AC voltage of 26.1 kV and three temperatures: 103°C, 114°C, and 135°C.
Cable samples at five aging stages were cut into slices and tested to determine their mechanical, physicochemical properties and dielectric strength.
The changes in these properties were analyzed in terms of aging time.
The mechanical strength and oxidation induction time have the same changing trend of decrease, because the chemical bonds of the cable insulation material are fractured when the XLPE cable is aged.
The AC space charge presented a trend of gradual accumulation with aging time.
The breakdown field strength after AC voltage application decreases monotonically with aging time, which could be a characteristic index to evaluate the degradation degree of the cable insulation.
This research contributes to the comprehension of degradation mechanism and discovery of aging assessment criteria, which is of great significance in assessments of insulation properties and fault detection on power cables.
American Psychological Association (APA)
He, Dongxin& Zhang, Tao& Ma, Meng& Gong, Wenjie& Wang, Wei& Li, Qingquan. 2020. Research on Mechanical, Physicochemical and Electrical Properties of XLPE-Insulated Cables under Electrical-Thermal Aging. Journal of Nanomaterials،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1188411
Modern Language Association (MLA)
He, Dongxin…[et al.]. Research on Mechanical, Physicochemical and Electrical Properties of XLPE-Insulated Cables under Electrical-Thermal Aging. Journal of Nanomaterials No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1188411
American Medical Association (AMA)
He, Dongxin& Zhang, Tao& Ma, Meng& Gong, Wenjie& Wang, Wei& Li, Qingquan. Research on Mechanical, Physicochemical and Electrical Properties of XLPE-Insulated Cables under Electrical-Thermal Aging. Journal of Nanomaterials. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1188411
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1188411