A review of non-destructive methods for the detection tiny defects within organic insulating materials

被引:3
作者
Zhang, Xinlong [1 ]
Cheng, Li [1 ]
Liu, Yunfan [1 ]
Tao, Bo [1 ]
Wang, Jiuyi [1 ]
Liao, Ruijin [1 ]
机构
[1] Chongqing Univ, Sch Elect Engn, State Key Lab Power Transmiss Equipment & Syst Sec, Chongqing, Peoples R China
基金
中国国家自然科学基金;
关键词
organic insulating materials; tiny defects; high voltage power equipment; aging; non-destructive testing5; ELECTRIC-FIELD RECONSTRUCTION; DECAY-LIKE FRACTURE; COMPOSITE INSULATORS; BRITTLE-FRACTURE; INFRARED THERMOGRAPHY; FAILURE ANALYSIS; TESTING METHOD; INSPECTION; NDT; LINE;
D O I
10.3389/fmats.2022.995516
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In recent years, solid organic materials such as silicone rubber and epoxy resin have been widely used in electrical equipment due to their excellent insulation properties. However, as a result of manufacturing and design flaws as well as aging issues during operation, the insulating materials in the linked state no longer fit tightly and tiny structural defects (defect size less than 10 mm) develop, such as debonding at the composite interface, pores or cracks within the insulating material, etc. Tiny defects are prone to partial discharges and breakdowns, compromising the safety of high-voltage power equipment, particularly when subjected to strong electric fields. Therefore, it is necessary to carry out non-destructive testing (NDT) for such tiny defects. Such defects are small in size, easily buried in the material, and even some are wrapped in metal, which in turn requires very high detection accuracy, but traditional methods are difficult to achieve, so NDT technologies for tiny defects within insulating materials have become a research hotspot in the field of electric power in recent years. This paper firstly introduces the sources of tiny defects in solid organic insulating materials for electrical equipment. Secondly, the harm caused by structural defects is elaborated. Finally, emerging NDT methods and their advantages and limitations in defect detection are described in detail. The review aims to provide the reader with a comprehensive overview of most of the NDT techniques used in the detection of tiny defects within solid organic insulating materials for electrical equipment and their most salient features.
引用
收藏
页数:15
相关论文
共 50 条
  • [31] Composite pipelines: Analyzing defects and advancements in non-destructive testing techniques
    Waqar, Muhammad
    Memon, Azhar M.
    Sabih, Muhammad
    Alhems, Luai M.
    ENGINEERING FAILURE ANALYSIS, 2024, 157
  • [32] Identification and Recognition of Defects in Civil Structures Using Non-destructive Technique
    Gaur, Devansh
    Saxena, Shalini
    Sangwan, Dhiraj
    Raheja, Jagdish Lal
    INFORMATION SYSTEMS DESIGN AND INTELLIGENT APPLICATIONS, VOL 2, 2015, 340 : 747 - 755
  • [33] Ultrasonic non-destructive assessment of bonding defects in composite structural strengthenings
    Bastianini, F
    Di Tommaso, A
    Pascale, G
    COMPOSITE STRUCTURES, 2001, 53 (04) : 463 - 467
  • [34] Infrared thermography as a non-destructive tool for materials characterisation and assessment
    Avdelidis, N. P.
    Gan, T-H.
    Ibarra-Castanedo, C.
    Maldague, X. P. V.
    THERMOSENSE: THERMAL INFRARED APPLICATIONS XXXIII, 2011, 8013
  • [35] Non-destructive inspection technologies for repair assessment in materials and structures
    Shiotani, T.
    Ogura, N.
    Okude, N.
    Watabe, K.
    Van Steen, C.
    Tsangouri, E.
    Lacidogna, G.
    Czarnecki, S.
    Chai, H. K.
    Yang, Y.
    Verstrynge, E.
    Aggelis, D. G.
    DEVELOPMENTS IN THE BUILT ENVIRONMENT, 2024, 18
  • [36] Synthesized Evaluation of Reinforced Concrete Bridge Defects, Their Non-Destructive Inspection and Analysis Methods: A Systematic Review and Bibliometric Analysis of the Past Three Decades
    Abdelkader, Eslam Mohammed
    Zayed, Tarek
    Faris, Nour
    BUILDINGS, 2023, 13 (03)
  • [37] Laboratory and in-situ non-destructive methods to evaluate the thermal transmittance and behavior of walls, windows, and construction elements with innovative materials: A review
    Soares, Nelson
    Martins, Claudio
    Goncalves, Margarida
    Santos, Paulo
    da Silva, Luis Simoes
    Costa, Jose J.
    ENERGY AND BUILDINGS, 2019, 182 (88-110) : 88 - 110
  • [38] Assessing the pavement subgrade by combining different non-destructive methods
    Marecos, Vania
    Solla, Mercedes
    Fontul, Simona
    Antunes, Vitor
    CONSTRUCTION AND BUILDING MATERIALS, 2017, 135 : 76 - 85
  • [39] Simulation of Non-destructive Testing Methods of Ultrasound in Concrete Columns
    Roa-Rodriguez, G.
    Aperador, W.
    Delgado, A.
    INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2013, 8 (11): : 12226 - 12237
  • [40] Concrete strength gain monitoring with non-destructive methods for potential adoption in quality assurance
    Saremi, Setare Ghahri
    Goulias, Dimitrios
    CONSTRUCTION AND BUILDING MATERIALS, 2020, 260