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IEEE Transactions on Power Apparatus and Systems

Issue 8 • Date Aug. 1968

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Displaying Results 1 - 13 of 13
  • IEEE Transactions on Power Apparatus and Systems - Table of contents

    Publication Year: 1968, Page(s): c1
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    Freely Available from IEEE
  • IEEE Power Group

    Publication Year: 1968, Page(s): c2
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    Freely Available from IEEE
  • Digital Simulation of Synchronous Machine Transients

    Publication Year: 1968, Page(s):1669 - 1675
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1550 KB)

    When synchronous machine transients in an extensive system are to be accurately calculated, many problems arise for which the information required to resolve them is not available. The resulting accuracy will depend upon the assumptions used not only in the development of the machine model but also in the way in which the incomplete model is solved. The primary problems involve the manner in which... View full abstract»

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  • Digital Computer Calculation of Internal Fault Currents in a Synchronous Machine

    Publication Year: 1968, Page(s):1675 - 1679
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (901 KB)

    A synchronous machine with a fault in its armature winding may be represented by an equivalent circuit in three symmetrical components. The line and neutral terminals of the equivalent circuit are connected to a system network in each sequence. The fault point of the positive sequence is connected to the neutral of the negative sequence, and so forth, representing a single phase- to-ground, or tur... View full abstract»

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  • Digital Analysis of Single-Pole Switching on EHV Lines

    Publication Year: 1968, Page(s):1679 - 1687
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2276 KB)

    Long distance EHV transmission and generator installations at remote locations have intensified stability problems. Transmission necessary to improve stability is expensive. Single- pole switching is being reviewed as an altemate. Phase-to-ground fault current in the open phase of the line is reduced by reactor compensation to make arc extinction possible. A means for increasing the line capabilit... View full abstract»

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  • Sensitivity in Power Systems

    Publication Year: 1968, Page(s):1687 - 1696
    Cited by:  Papers (69)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1913 KB)

    Sensitivity is defined as the ratio ¿x/¿y relating small changes ¿x of some dependent variable to small changes ¿y of some independent or controllable variable y. In power systems, two dominant types of sensitivity relations are defined, namely 1) sensitivity of one electrical variable, such as the voltage Vi at node i, with respect to another electrical variable, such as reactive production Q... View full abstract»

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  • Optimized Transient Stability from Excitation Control of Synchronous Generators

    Publication Year: 1968, Page(s):1696 - 1705
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1551 KB)

    A digital computer study of synchronous generators which aims to optimize transient stability is described. Mathematical modeling checked by site tests is used, and alternative excitation controls are investigated. It is shown that the appropriate excitation control can produce substantial positive damping of rotor angle excursion without prejudice to the automatic voltage control. View full abstract»

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  • A Digital Method for Determining Inherent Transient Recovery Voltages in Power Systems

    Publication Year: 1968, Page(s):1706 - 1713
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1234 KB)

    This method determines inherent transient recovery voltages on power systems using the state space approach. The impedance parameter, viewed from a pair of electrodes or terminals of the circuit breaker, is given as a ratio of two determinants in complex frequencies by means of the Laplace transformation of the system of differential equations with respect to loop currents of the network. The fund... View full abstract»

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  • Isolated-Phase Bus Enclosure Currents

    Publication Year: 1968, Page(s):1714 - 1718
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    In the continuous-enclosure type isolated-phase bus, the enclosure current in amperes is very nearly equal to the conductor current. It lags the conductor current by somewhat less than 180°. The external flux is relatively small, and any induction heating in material or induced volts in instrument or control circuits adjacent to the bus will be negligible. Methods for determining the actual curre... View full abstract»

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  • Surge Measurements in High-Voltage Stations

    Publication Year: 1968, Page(s):1718 - 1723
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (931 KB)

    Surge voltage measurements were performed at twenty-six 230- and 115-kV transformer stations. Individual measuring periods varied from four months to 12 years; the number of measuring locations ranged from 1 to 55. From several thousand klydonograph records it is concluded that in systems with operating voltages up to 230 kV and in areas with an isokeraunic level of 20 to 30, lightning is the main... View full abstract»

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  • Measured Losses in Isolated-Phase Bus and Comparison with Calculated Values

    Publication Year: 1968, Page(s):1724 - 1730
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1295 KB)

    The results of loss measurements on an isolated-phase bus are recorded and compared with values calculated by a proposed guide [1]. The calorimetric test method is described. View full abstract»

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  • Proposed Guide for Calculating Losses in Isolated-Phase Bus

    Publication Year: 1968, Page(s):1730 - 1737
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1759 KB)

    The proposed guide forms a useful document for those responsible for evaluating losses in isolated-phase bus. The Working Group plans two modifications in the final version of the guide. The first is an extension of Fig. 1 to make it more useful in the calculation of skin effect of very large enclosures. The second modification will be the inclusion of an empirical formula for more accurate determ... View full abstract»

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  • Contributors

    Publication Year: 1968, Page(s):1738 - 1740
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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