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IEEE Transactions on Power Apparatus and Systems

Issue 8 • Date Aug. 1967

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Displaying Results 1 - 16 of 16
  • IEEE Transactions on Power Apparatus and Systems - Table of contents

    Publication Year: 1967, Page(s): c1
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    Freely Available from IEEE
  • IEEE Power Group

    Publication Year: 1967
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    Freely Available from IEEE
  • Recovery Strength Measurements in Arcs from Atmospheric Pressure to Vacuum

    Publication Year: 1967, Page(s):927 - 932
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1397 KB)

    Measurements are reported for the recovery of electric strength following interruption of an arc drawn in nitrogen at pressures ranging from atmospheric to 0.02 torr. These data are compared with similar results obtained for vacuum arcs. Recovery strength measurements followed a single half-cycle of sinusoidal arc current with a peak of 400 amperes. For conditions of gap length and pressure descri... View full abstract»

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  • Switching Surge Flashover Characteristics of Extremely Long Air Gaps

    Publication Year: 1967, Page(s):933 - 936
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (822 KB)

    The purpose of this paper is to estimate the limit of the possible transmission line voltage and to clarify the mechanism of discharge in the air. Tests were performed on the switching surge flashover of long air gaps under dry conditions. The flashover voltages of the switching surge with the duration of wave front 180 ¿s were obtained up to 13 meters for rod-plane gaps for positive polarity. Th... View full abstract»

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  • Influence of Air Gap Characteristics on Line-to-Ground Switching Surge Strength

    Publication Year: 1967, Page(s):936 - 947
    Cited by:  Papers (44)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5403 KB)

    A series of tests, carried out by applying impulse waves simulating switching surges to air gaps with electrodes of different shapes, is described. From the test results, it has been possible to draw some important conclusions about the influence of the electrode shape and also to single out simple rules for the predetermination of the behavior of air insulation; these rules can be particularly us... View full abstract»

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  • Influence of Air Density on Electrical Strength of Transmission Line Insulation

    Publication Year: 1967, Page(s):948 - 961
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6225 KB)

    Flashover tests were conducted at the Leadville EHV Test Facility of the Public Service Company of Colorado and Project EHV at Pittsfield, Mass., to obtain comparative data to evaluate the influence of air density on switching surge and impulse flashover strength of transmission line insulation. The tests showed that negative polarity flashover voltages are greater than those of positive polarity.... View full abstract»

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  • Determination of Characteristic Voltages in Impulse and Switching Surge Testing

    Publication Year: 1967, Page(s):962 - 968
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1561 KB)

    The paper deals with the characteristic impulse and switching surge voltages of high-voltage equipment which only temporarily loses its dielectric strength when flashover occurs. A test procedure suitable for determining the highest withstand voltage and the lowest flashover voltage of a test object is described, and a theoretical investigation is carried out in order to show the quality of the te... View full abstract»

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  • The Confidence Limit of High-Voltage Dielectric Test Results

    Publication Year: 1967, Page(s):968 - 975
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1631 KB)

    The uncertainty of high voltage dielectric test results is emphasized. This uncertainty can be expressed by a suitable confidence limit. The best figure suggested is the standard deviation ¿for all the possible results of a test. A method for the calculation of ¿is reported. Four types of confidence limits are considered and values are reported on the basis of available data from Centro Elettrot... View full abstract»

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  • Analysis of Spark Breakdown Characteristics for Sphere Gaps

    Publication Year: 1967, Page(s):975 - 978
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (954 KB)

    The Application of a semi-empirical spark breakdown criterion is illustrated, and it is shown that it can give a very detailed analysis of known spark breakdown characteristics for the sphere gap. View full abstract»

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  • Economic Optimization of Transmission Tower Grounding and Insulation

    Publication Year: 1967, Page(s):979 - 986
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1566 KB)

    A reduction in transmission line cost was thought possible through a unified approach to line insulation system design. In this paper a mathematical model relating line performance to insulation system expenditure is analyzed and using incremental cost techniques a method for optimizing the selection of insulation system components to achieve a desired performance or reliability level is developed... View full abstract»

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  • Line Insulation Design for APS 500-ky System

    Publication Year: 1967, Page(s):987 - 994
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1651 KB)

    An attempt has been made to obtain an optimum insulation system which fulfills all APS requirements. The three primary areas which dictate insulation design limits are normal frequency voltages and contamination, switching surges, and lightning. Contamination limits were established by an extrapolation of operating experience at other voltage levels. The switching surge limits were established by ... View full abstract»

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  • EHV Application of Autotransformers

    Publication Year: 1967, Page(s):995 - 1000
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3857 KB)

    The universal method of voltage transformation from EHV levels to lower voltage systems is through the use of the autotransformer. The characteristic of the autotransformer is profoundly influenced by the tertiary winding or the lack of it. This paper discusses the influence of the tertiary winding and its placement, fault magnitude and short circuit duty, autotransformer loading, overexcitation, ... View full abstract»

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  • Comparison of 60-Hz Field Measurements with Digital Analysis of 500-ky Transmission Line

    Publication Year: 1967, Page(s):1001 - 1006
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1134 KB)

    Power system studies involving economics, stability, short circuits, load flows, etc., require a knowledge of transmission line characteristics. Traditionally, these characteristics have been determined either by field tests or by mathematical computations. The construction of a 118-mile bundled EHV line between Johnsonville and Memphis, Tenn., afforded a much needed opportunity to compare tested ... View full abstract»

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  • Effect of Station Radio Noise Sources on Transmission Line Noise Levels - Experimental Results

    Publication Year: 1967, Page(s):1007 - 1011
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    Known sources (gaps) of radio noise (RI) generation were applied to a transmission line close to a station and the resultant transmission line RI levels were monitored. Measurements are in good agreement with calculated values. Measurements of station impedance were made. RI gaps were found to be stable and operated as constant current generators over a wide range of load impedance. View full abstract»

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  • Probabilistic Aspects of Transmission System Switching Surge Reliability

    Publication Year: 1967, Page(s):1012 - 1024
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2339 KB)

    Probabilistic principles are applied to predicting the transmission system flashover rate caused by switching operations by combining results of laboratory tests on component insulation structures with system overvoltage probability distributions. A piecewise normal method is developed, applicable when statistical dependence of insulation structure flashover and system over- voltage generation can... View full abstract»

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  • Contributors

    Publication Year: 1967, Page(s):1025 - 1028
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    Freely Available from IEEE

Aims & Scope

This Transactions ceased production in 1985. The current retitled publication is IEEE Transactions on Energy Conversion and IEEE Transactions on Power Delivery, and IEEE Transactions on Power Systems.

Full Aims & Scope