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Electrical Insulation, IEEE Transactions on

Issue 2 • Date April 1981

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Displaying Results 1 - 16 of 16
  • Table of contents

    Publication Year: 1981 , Page(s): c1
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  • IEEE Electrical Insulation Society

    Publication Year: 1981 , Page(s): c2
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  • Interface Effects in the Electrical Response of Non-Metallic Conducting Solids and Liquids

    Publication Year: 1981 , Page(s): 65 - 82
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    First Page of the Article
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  • The Ageing of Electrical Insulation at Cryogenic Temperatures

    Publication Year: 1981 , Page(s): 83 - 88
    Cited by:  Papers (6)
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    This paper presents some theoretical and experimental evidence that, under certain conditions, the transient voltage characteristics of electrical insulation impregnated with liquid nitrogen become the limiting factor in determining the normal operating stress. The life of the insulation is assumed to obey the well known life equation: (stress)n x time = conatant. It will be shown that the operati... View full abstract»

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  • The Impulse Characteristics of Electrical Insulation Operating at Cryogenic Temperatures

    Publication Year: 1981 , Page(s): 89 - 96
    Cited by:  Papers (7)
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    This paper reports the transient voltage breakdown characteristics of electrical insulation operating at cryogenic temperatures. Nomex®e, Tyvek® and polypropylene film/cellulose paper laminate (PPLP) specimens impregnated with liquid nitrogen (LN2) and containing cavities of known dimensions were subjected to either 1.2/50 or 250/2500 ps impulses of increasing amplitude until breakdown. The effe... View full abstract»

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  • Power Frequency and Impulse Voltage Breakdown along Silicone Oil/Xlpe Interface

    Publication Year: 1981 , Page(s): 97 - 104
    Cited by:  Papers (1)
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    Power frequency (60 Hz) and Impulse Voltage breakdown characteristics of Silicone Oil (PDMS) with and without cross-linked polyethylene (XLPE) spacers have been studied. The electrode geometries were designed to simulate a high voltage cable termination. In the presence of a spacer, the breakdown stress under 60. Hz voltage remained nearly independent of gap length over the range of gaps studied. ... View full abstract»

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  • Photo-Inspection between Cross-Linked Polyethylene and a Semiconducting Layer

    Publication Year: 1981 , Page(s): 105 - 110
    Cited by:  Papers (4)
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    Compatibility between a cross-linked polyethylene layer and a semiconducting polyethylene layer in a block sample, simulating a solid dielectric cable, is investigated by use of a photo-multiplier to detect light emission at the interface. The application of a photo-multiplier to detect the quality of contact at the interface provides superior sensitivity to the conventional discharge detection me... View full abstract»

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  • Experimental Study of the Breakdown Characteristics of a Gas-Insulated Bus

    Publication Year: 1981 , Page(s): 111 - 117
    Cited by:  Papers (3)
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    The area effect in gas-insulated systems on the breakdown voltages and V-t characteristics is studied, using a model bus section of 84 kV single-phase SF6 gas-insulated substation. The model bus, stretched along a straight line, has a number of conical spacers. The breakdowns occur at the shielding electrodes arranged near the spacers. Increasing the number of spacers means an increased chance of ... View full abstract»

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  • Correlations between Nondestructive and Destructive Tests on High-Voltage Coil Insulations for Rotating Miachines

    Publication Year: 1981 , Page(s): 118 - 127
    Cited by:  Papers (13)
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    The correlations between results of nondestructive and destructive tests on high-voltage coil insulations for rotating machines were investigated and the following findings were obtained. Breakdown voltage on application of a commercial line voltage (50 Hz) is correlated to the voltage at which a partial discharge bridges the insulation layer. Breakdown voltage on application of a direct voltage i... View full abstract»

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  • Surface Discharge Studies with Uniform Field Electrodes at Low Pressures

    Publication Year: 1981 , Page(s): 128 - 133
    Cited by:  Papers (5)
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    An investigation of power frequency (50 Hz) surface partial discharges in dry air, using 21r/3 Rogowski profile electrodes in the low pressure range of 0.067 to 91.333 kPa, shows that for the discharges occurring symmetrically around the electrodes and just outside the uniform field region, the breakdown voltages are 20 to 30% lower than those accounted for by the usual Paschen values. Emphasis, t... View full abstract»

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  • Impulse Breakdown of Polymer Dielectrics in the NS Range in Divergent Fields

    Publication Year: 1981 , Page(s): 134 - 139
    Cited by:  Papers (7)
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    The short time impulse breakdown of polymer dielectrics, polyethylene (PE), polyethylene terephthalate (PET), polycarbonate (PC), polystyrene (PS), and polymethyl methacrylate (PMMA) in a pointplane electrode system has been studied using a ns rise time pulser. A polarity effect was found in all polymers: a highet voltage is required to induce breakdown for a negative point than for a positive poi... View full abstract»

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  • Evaluation of a New Material for Semiconducting Layer in XLPE Power Cables

    Publication Year: 1981 , Page(s): 140 - 143
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (977 KB)  

    A new material for the semiconducting layer on crosslinked polyethylene (XLPE) power cable was evaluated through water treeing tests. Since the new material contains only fifteen percent carbon black by weight, it can be cleaned by screening. Thus the material has less contaminants at the semiconducting-insulating layer interface. Water treeing tests showed that the number of water trees grown in ... View full abstract»

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  • Laboratory Testing of a Sensor for Hydrogen Dissolved in Transformer Oil

    Publication Year: 1981 , Page(s): 144 - 148
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    A new device based on the electrochemical oxidation of hydrogen diffusing through a Teflon(R) membrane has been tested over a range of conditions in the laboratory. The device is aimed at measuring the hydrogen content of transformer oil in situ and on a continuous basis. The sensor consists of a metallic body screwed directly on the transformer in an appropriate opening and a second removable met... View full abstract»

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  • The Interpretation of Current Transients in Dielectrics

    Publication Year: 1981 , Page(s): 149 - 152
    Cited by:  Papers (2)
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    It is shown that a peak in a transient current following a step voltage application generally does not represent the carrier transit time in some dielectrics. Different mechanisms leading to almost similar transient currents are discussed. It is shown that current transient peaks can have different significance depending on the mechanisms of charge generation, transport and recombination. View full abstract»

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  • IEEE Electrical Insulation Society

    Publication Year: 1981 , Page(s): 152-a
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  • Information for authors

    Publication Year: 1981 , Page(s): 152b
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Aims & Scope

This Transactions ceased production in 1993. The current retitled publication is  IEEE Transactions on Dielectrics and Electrical Insulation.

Full Aims & Scope