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Electrical Insulation Magazine, IEEE

Issue 2 • Date March-April 2001

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Displaying Results 1 - 13 of 13
  • Nanosecond surface discharge and charge density evaluation Part I: review and experiments

    Publication Year: 2001 , Page(s): 6 - 16
    Cited by:  Papers (22)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2380 KB) |  | HTML iconHTML  

    Since the beginning of the 20th century surface discharge phenomena have been investigated form a viewpoint of scientific interest. By using both dust figure and photographic figure methods, together with the nanosecond pulse technique, the corona streamer development phenomena on an insulation surface were experimentally analyzed. The results obtained in a series of these experiments are summarized. View full abstract»

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  • Retrofilling conditions of high voltage transformers

    Publication Year: 2001 , Page(s): 17 - 30
    Cited by:  Papers (16)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (372 KB) |  | HTML iconHTML  

    This article reports the procedures and preliminary tests related to the retrofilling of a perchlorethylene-base d fluid (Transclene TM) filled transformer. Two insulating liquids, a mineral oil and an ester liquid that seemed to be suitable for this retrofilling, were investigated, In order to examine long-term effects, the investigations were performed on new samples as well as on samples subjected to severe ageing conditions. To simulate real operating conditions, the temperature was varied between O and 100 °C with different water contents. View full abstract»

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  • Interpretation of gas-in-oil analysis using new IEC publication 60599 and IEC TC 10 databases

    Publication Year: 2001 , Page(s): 31 - 41
    Cited by:  Papers (62)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (105 KB) |  | HTML iconHTML  

    IEC Publication 60599, concerning the interpretation of dissolved gas-in-oil analysis, was issued in 1999 by Working Group 13, as a result of the revision of IEC TC 10 of the previous IEC Publication 599, issued in 1978. The main body of Publication 60599 contains an in-depth description of the five main types of faults usually found in electrical equipment in service. The familiar gas ratios have been retained for the diagnoses, but with new code limits, while additional gas ratios are suggested for specific fault cases. More precise definitions of normal and alarm gas concentrations in service are indicated. In the Annexes, examples of typical (normal) gas concentration values observed in service are given for six different types of equipment. Extensive databases of faulty equipment inspected in service and of typical normal values related to various types and ages of equipment and types of faults have been used for the revision of Publication 60599. These databases are presented in this paper for the benefit of the maintenance personnel involved in the interpretation of DGA results in service. View full abstract»

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  • Diagnostics for the condition of SF/sub 6/ equipment based on physico-chemical parameters

    Publication Year: 2001 , Page(s): 42 - 51
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (163 KB) |  | HTML iconHTML  

    The methods used to carry out physico-chemical diagnostics of high-voltage SF 6 insulated equipment during active use of the equipment have been described. Because inspection can be made to determine the condition of the insulation without interrupting the power being supplied, the diagnostic methods described are very attractive. Use of these diagnostic methods in Russia have shown that the current state of the apparatus can be determined and an estimation obtained on the amount of life left in the apparatus. View full abstract»

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  • Insulation coordination for power systems [Book Review]

    Publication Year: 2001 , Page(s): 66
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    Freely Available from IEEE
  • Dielectric relaxation and dynamics of polar molecules [Book Review]

    Publication Year: 2001 , Page(s): 66
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    Freely Available from IEEE
  • Electrical cables for power and signal transmission [Book Review]

    Publication Year: 2001 , Page(s): 66 - 67
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    Freely Available from IEEE
  • Functional monomers and polymers [Book Review]

    Publication Year: 2001 , Page(s): 67
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    Freely Available from IEEE
  • Distributed power generation planning and evaluation [Book Review]

    Publication Year: 2001 , Page(s): 67 - 68
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    Freely Available from IEEE
  • Atoms and their spectroscopic properties [Book Review]

    Publication Year: 2001 , Page(s): 68
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    Freely Available from IEEE
  • Polymer and composite rheology, second edition [Book Review]

    Publication Year: 2001 , Page(s): 68
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    Freely Available from IEEE
  • Organic/inorganic hybrid materials [Book Review]

    Publication Year: 2001 , Page(s): 68
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  • Electronic packaging and interconnection handbook, 3/sup rd/ edition [Book Review]

    Publication Year: 2001 , Page(s): 68 - 69
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    Freely Available from IEEE

Aims & Scope

The EI Magazine is specifically concerned with publishing articles in the development and characterization of the dielectric, chemical, mechanical, and environmental properties of all vacuum, gaseous, liquid, and solid electrical insulation, and with utilization of these materials in circuits and systems under conditions of use.

Full Aims & Scope

Meet Our Editors

Co-Editor-in-Chief
Edward Cherney

Co-Editor-in-Chief
Robert Fleming