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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Published 4 issues per year

ISSN Print: 1093-3611

ISSN Online: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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USING INTELLIGENT OPERATION OF A HIGH VOLTAGE CIRCUIT BREAKER TO IMPROVE ITS OPENING AND CLOSING CAPACITY

Volume 11, Issue 4, 2007, pp. 619-640
DOI: 10.1615/HighTempMatProc.v11.i4.140
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ABSTRACT

The research for the characteristics and the applications of "Intelligent Operation of a Circuit Breaker" has become a new, interesting and attracted attention topic because "Intelligent Operation" can improve the opening and closing capacity of a high voltage circuit breaker and its reliability. In this paper, the mathematical models and calculating method of the dielectric recovery characteristic and moving characteristic of a circuit breaker are developed, based on the breakdown theory of critical electric strength. The sensitivity of the gap between open contacts to non-uniform coefficients of electric field is considered the dielectric recovery strength as calculated. The simulation results are in accordance with the experiment results. The influences of the characteristic of dielectric recovery on the circuit breaker in the opening and closing are analyzed. It is pointed out that "Intelligent Operation" of a circuit breaker can change the characteristic of dielectric recovery, and improve its opening and closing capacity consequently. The operating overvoltage appears when a circuit breaker, especially a high-voltage circuit breaker is opening or closing, which causes strong Electro Magnetic Interference (EMI) and might even damage power and electric equipments near the circuit breaker. In this paper the factors which create operating overvoltage are analyzed. The methods for reducing or avoiding operating overvoltage are put forward, which are realized by changing the moving characteristics of the circuit breaker, such as the initial phase confirmed in closing, the current phase selected and the diameter of the drain oil aperture of operating mechanism adjusted in opening, i.e. the intelligent operation used in the moving of circuit breaker.

CITED BY
  1. Yunsheng Zhang , Xiaoning Chen , Bihua Zhou , Jue Yuan , Study on the opening mode of high-voltage circuit breaker for SLF to reduce the electromagnetic radiation, 2009 5th Asia-Pacific Conference on Environmental Electromagnetics, 2009. Crossref

  2. Shen Yuzhuo, Han Lu, Jin Lijun, Lu Ganwen, Mei Jian, Zhu Hui, Research on the dielectric recovery of SF<inf>6</inf> circuit breaker based on the flow field control, 2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, 2009. Crossref

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