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IEEE Transactions on Power Apparatus and Systems

Issue 10 • Oct. 1968

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Displaying Results 1 - 14 of 14
  • 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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  • Dielectric Tests on EHV Pantograph Switches

    Publication Year: 1968, Page(s):1813 - 1819
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2929 KB)

    Tests were conducted on pantograph type disconnect switches to determine their dielectric characteristics. The data includes switching surge, impulse, and power frequency tests on insulations of 1300-, 1550-, and 1925-kV BIL, and open gaps of 130, 160, 180, and 200 inches. A comparison between the pantograph gap characteristics and various other vertical gaps, as well as vertical break switch gaps... View full abstract»

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  • A Method of Power Factor Measurement for Circuit Interrupter Testing

    Publication Year: 1968, Page(s):1819 - 1821
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (973 KB)

    In testing load circuit interrupting devices for electric power systems, it is necessary to determine the power factor of the test circuit. There has previously been some difficulty in making this measurement. This problem is discussed, and a circuit is described which has been used to measure conveniently the phase angle between the source voltage and the load current. View full abstract»

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  • Electrical Features of the Additional Hydraulic Generation Being Installed at Barrett Chute and Stewartville Generating Stations

    Publication Year: 1968, Page(s):1822 - 1829
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3481 KB)

    Two generating stations on the same river were extended to accommodate the additional generation made available by their conversion from base load to peaking operation. The electrical features of Ontario Hydro's first experiences with such extensions are reviewed. View full abstract»

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  • A Technical Assessment of Artificial Commutation of HVDC Converters with Series Capacitors

    Publication Year: 1968, Page(s):1830 - 1840
    Cited by:  Papers (42)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2199 KB)

    Artificial commutation with series capacitors, to extend the operation of mercury tube or solid-state converters beyond the normally attainable control angles, is analyzed in detail, and performance assessed for application to HVDC transmission. Operating characteristics are presented, including details of tube voltage stress and attainable range of control for particular capacitor values and syst... View full abstract»

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  • The Breakdown Voltage of Oil Gaps with High DC Voltage

    Publication Year: 1968, Page(s):1840 - 1843
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (831 KB)

    The electrical strength of technically clean insulating oil in a direct voltage field is lower when the high-voltage electrode is sharper and of positive polarity. In a uniform field, with distances up to 100 mm, approximately 30 percent lower withstand values are obtained with direct voltages than with alternating voltages (rms values); this is also valid when the oil is heated up to transformer ... View full abstract»

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  • Tracking Resistance of Insulating Tapes for Taped-Type Terminations

    Publication Year: 1968, Page(s):1844 - 1848
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    Nineteen commercial tapes used for covering insulation in terminations were tested for tracking resistance. Accelerated test results are given for dust-and-fog, endurance wheel, and dip-track tests. While all tests rated classes of materials in the same order, correlation of ratings of individual tapes proved difficult. Vinyls readily tracked, polyethylenes and butyls were more resistant, and sili... View full abstract»

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  • Magnetic Fields in Nonlinear Salient Pole Alternators

    Publication Year: 1968, Page(s):1848 - 1856
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2266 KB)

    The flux densities under load are established in the cross section of salient pole alternators of low pole numbers. The two-dimensional partial differential equations describing the magnetic vector potentials are first transformed in partial difference equations and a new algorithm is given. A combination of rectangular and polar grids is used to follow the contours of the alternator. The reluctiv... View full abstract»

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  • Calculation of Temperature Transients in Carbon Brushes

    Publication Year: 1968, Page(s):1857 - 1861
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1207 KB)

    Calculations of the temperatures that appear at the faces of sliding contacts and brushes require certain assumptions concerning the mechanism of conduction and the size, shape, and number of contact spots. Previous calculations have been made based on certain arbitrary numbers for these factors. In this paper, a wide range of values for these factors has been investigated using computer technique... View full abstract»

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  • A Single-Phase Induction Motor with One Distributed Winding

    Publication Year: 1968, Page(s):1862 - 1866
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1843 KB)

    A single-phase induction motor with one winding develops starting torque if the stator iron is not symmetrical about the winding axis. Four methods of producing the dissymmetry are described. The most significant design variables are rotor resistance, the location of the dissymmetry, and the difference of the magnetizing reactances perpendicular to and along the dissymmetry. Test and calculated da... View full abstract»

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  • Optimal Power Flow Solutions

    Publication Year: 1968, Page(s):1866 - 1876
    Cited by:  Papers (693)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2634 KB)

    A practical method is given for solving the power flow problem with control variables such as real and reactive power and transformer ratios automatically adjusted to minimize instantaneous costs or losses. The solution is feasible with respect to constraints on control variables and dependent variables such as load voltages, reactive sources, and tie line power angles. The method is based on powe... View full abstract»

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  • The Piecewise Solution of the Impedance Matrix Load Flow

    Publication Year: 1968, Page(s):1877 - 1882
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1614 KB)

    This paper presents a method for solution of the load flow problem which involves tearing a power system into pieces. This permits use of the impedance matrix method on larger systems than was previously feasible. A detailed tearing algorithm is given. Its validity is examined by presentation of test results for a small sample system. The new method retains the same features and convergence charac... View full abstract»

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  • Contributors

    Publication Year: 1968, Page(s):1883 - 1884
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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