Electric Power ›› 2018, Vol. 51 ›› Issue (6): 67-76.DOI: 10.11930/j.issn.1004-9649.201702023

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Industry Status Analysis and Key Technology Expectation for Insulated Tubular Busbar

RUAN Ling1, LIU Rui1, ZHAO Jiankang2, XU Zhibin3, YANG Fan1, ZHU Sirui1, LI Wenpei1   

  1. 1. State Grid Hubei Electric Power Research Institute, Wuhan 430077, China;
    2. China Electric Power Research Institute, Wuhan 430074, China;
    3. State Grid Materials Co., Ltd., Beijing 100120, China
  • Received:2017-02-16 Revised:2018-01-10 Online:2018-06-05 Published:2018-06-12
  • Supported by:
    This work is supported by Science and Technology Project of State Grid Corporation of China (No.52153216000S)(Researches on the Technologies to Improve the Operation Reliability and the Performances of the Insulated Tubular Busbar).

Abstract: As a new type of current-conveying equipment at low voltage side, insulated tubular busbar has been increasing rapidly in recent years for its unique advantages. However, the frequent failures and adverse consequences in the application of this kind of equipment have seriously restricted its further extension. Based on extensive investigation of the manufacturers, applications and related documents of insulated tubular busbar, this paper summarizes the industry status and the technological characteristics of this equipment, analyzes the typical failure in the application, sums up the common problems in the production and application of this kind of equipment, and proposes the key technologies which should be researched in the future to solve the above problems. This article proposes that, the characteristics of the insulated tubular busbar exactly meets the needs of high-capacity, high safety level and flexibility for current-carrying which are demanded by the industry customers; the manufacture,the application of this kind of equipment and the related researches have just started in China; the common failures in the operation reveal that there are quite deficiencies in the aspects of design, manufacture, assembling, operation and test during whole processes of the insulated tubular busbar; and methods in the aspects of engineering level and management system should be developed to optimize the equipment and improve its operating reliability.

Key words: insulated tubular busbar, low voltage accessory equipment, high-capacity current-carrying, industry status, failure analysis, key technology

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