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IEEE Transactions on Power Apparatus and Systems

Issue 2 • Feb. 1968

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  • 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
  • News

    Publication Year: 1968, Page(s):1a - 2a
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    Freely Available from IEEE
  • IEEE Special Conference on EHV Transmission

    Publication Year: 1968, Page(s): 2a
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    Freely Available from IEEE
  • Field Tests of Dynamic Stability Using a Stabilizing Signal and Computer Program Verification

    Publication Year: 1968, Page(s):315 - 322
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1620 KB)

    Stability studies were made[1] on a digital computer of the British Columbia Hydro and Power Authority Peace River System which indicated the advisability of using high-speed excitation with a stabilizing feedback. Consideration of the novelty of this technique led to a decision to conduct field tests to confirm that the equipment would behave as forecast. In addition, these tests could provide co... View full abstract»

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  • Near Resonant Coupling on EHV Circuits: I - Field Investigations

    Publication Year: 1968, Page(s):322 - 325
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2928 KB)

    Higher voltages than anticipated and large neutral currents were measured on 345-kV shunt reactors installed at each end of a 261.4-mile 345-kV circuit operated in close parallel with a 138- kV circuit. The phenomenon existed only when the 345-kV circuit breakers at both ends were open, the line ungrounded, and either or both of the EHV shunt reactors connected. Field investigations and measuremen... View full abstract»

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  • Near Resonant Coupling on EHV Circuits: II - Methods of Analysis

    Publication Year: 1968, Page(s):326 - 334
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1643 KB)

    Shunt reactor compensation on multicircuit untransposed overhead transmission lines may interact with the intracircuit and line-to-ground capacitances of the lines to produce severe near- resonant coupled voltages on a de-energized circuit. View full abstract»

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  • A Method for Analysis of Radio Noise on High-Voltage Transmission Lines

    Publication Year: 1968, Page(s):334 - 345
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2593 KB)

    A technique is described for approximating the effect of various factors on the radio noise level, due to conductor corona, on EHV transmission lines. The technique is essentially one of comparison. Relations are given in the Appendix for calculating the conductor gradients and results are presented in curve form. The application is intended only for comparison of radio noise generated by conducto... View full abstract»

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  • Recommendations for Safety in Live Line Maintenance

    Publication Year: 1968, Page(s):346 - 352
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1730 KB)

    In the absence of standards governing insulation levels and clearances for live line maintenance practices, recommendations for minimum requirements are submitted. It is intended to base these requirements on realistic evaluation of the transient voltages to which equipment may be subjected, and to establish flexible rules that will not restrict future progress. View full abstract»

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  • Ferroresonant Overvoltage Control Based on TNA Tests on Three-Phase Wye-Delta Transformer Banks

    Publication Year: 1968, Page(s):352 - 361
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3093 KB)

    This paper shows possible ferroresonant overvoltages on wye-delta transformer banks during single-phase switching as a function of transformer size and lateral length. Application guide is based on industry standard voltage criteria. Secondary loading and neutral resistor requirements are given. A neutral resistor presents an attractive solution in many cases. Simple to use equations are given to ... View full abstract»

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  • Switching Surge Sparkover Characteristics of Air Gaps and Insulator Strings Under Nonstandard Conditions

    Publication Year: 1968, Page(s):361 - 367
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2533 KB)

    This paper describes the results of sparkover tests made with switching surge voltages superposed on 50-Hz voltage, standard deviations of sparkover voltage of a pair of sphere and air gaps, sparkover characteristics of 11- by 6.75-inch suspension insulators, the influence of electrode size on switching surge sparkover voltage, and the humidity correction factor for switching surge voltages of an ... View full abstract»

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  • Bistable Operating Temperatures and the Current Rating of Sodium Conductors

    Publication Year: 1968, Page(s):367 - 371
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (996 KB)

    Unlike conventional cables, the operating temperature of sodium cable lies close to its melting point. Although this does not affect the current rating at normal ambients, one cannot reap the full current rating benefits which normally accrue from a lowered ambient temperature. This paper describes how the ambient temperature affects the maximum operating temperature of sodium cable. View full abstract»

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  • Bibliography on Transformer Noise

    Publication Year: 1968, Page(s):372 - 387
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3830 KB)

    This paper supplements and updates previous bibliographies on transformer noise. A separate section on transformer noise patents is included. View full abstract»

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  • Analysis of T-T Connections of Two Single-Phase Transformers

    Publication Year: 1968, Page(s):388 - 394
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1375 KB)

    The T-T connected transformer is a connection of two single-phase transformers which will yield the same phasor relation as a standard 3-phase transformer. However, because of the unsymmetrical nature of the T-T connected transformer, undesirable negative and zero-sequence voltages may be introduced into the electric system. Fortunately, these voltages are quite small for a properly designed T-T c... View full abstract»

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  • Resin-Bonded Paper Bushings for EHV Systems

    Publication Year: 1968, Page(s):394 - 399
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3797 KB)

    The development of resin-bonded paper bushings for extra-high voltages is described. The problems of thermal stability, internal partial discharges, breakdown along laminae, and the manufacture of large insulating bodies are discussed. An evaluation of the merits of resin-bonded and oil-impregnated paper bushing is made. The suitability of new bushing designs is shown by reporting the experiences ... View full abstract»

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  • Calculation of Electrical Field Strength Around Transformer Winding Corners

    Publication Year: 1968, Page(s):399 - 405
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (989 KB)

    A method is described for determining the electrostatic field strength with the aid of a high-speed computer. The method is based on the conformal mapping according to Schwarz-Christoffel, and it is suitable for the calculation of voltage gradients in the vicinity of bare or insulated rounded boundaries governed by three potentials, particularly with reference to transformers. View full abstract»

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  • Switching Surge Tests for Oil-Insulated Power Transformers

    Publication Year: 1968, Page(s):405 - 407
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    A draft of proposed standards for switching surge tests on oil-insulated power transformers is presented for study and information. A brief review of the background leading to such tests is followed by the proposed standard dealing with switching surge test specifications, the test code which includes wave shape requirements, suggested methods of generating switching surge transients, sequence of ... View full abstract»

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  • Power Line Carrier Coupling - A New Look at the Tuned Type

    Publication Year: 1968, Page(s):407 - 420
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3416 KB)

    The major objectives of this paper are to show how a properly tuned coupling network may be selected, how the appropriate component values may be determined, and how the network may be accurately tuned. Two new concepts relative to power line carrier coupling are introduced. The first deals with the establishment of workable limits for the range over which the coupling network may be detuned by 60... View full abstract»

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  • 345-kV Line 60-Hz Ground Wire Losses

    Publication Year: 1968, Page(s):420 - 427
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1570 KB)

    In considering the use of insulated and transposed ground wires for communications or other purposes, the magnitude of the ground wire losses were determined so that the losses could be properly evaluated as a cost or credit for this use when compared to the conventional construction of grounded steel ground wires. Three structure configurations and three different ground wire conductors were stud... View full abstract»

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  • Insulation Characteristics of a 345-kV Disconnecting Switch

    Publication Year: 1968, Page(s):427 - 438
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3763 KB)

    The impulse and switching surge flashover characteristics of a horizontal double-break disconnecting switch have been investigated. Starting with a single-pole arrangement the open-gap dimension was coordinated with the flashover of 1050-and 1300-kV BIL supporting post insulators for positive-polarity switching surge waves under dry conditions. In a similar manner the open-gap and pole-to-pole dim... View full abstract»

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  • Current Limiting Fuse Arc-Voltage Characteristics

    Publication Year: 1968, Page(s):438 - 448
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3144 KB)

    Fusible elements of a uniform cross-sectional area, such as wire, produce an arc voltage that is directly related to available fault current, but is not basically related to circuit voltage. Conversely, nonuniform area elements, such as perforated ribbon, generate maximum arc voltages independent of fault-current magnitude, but proportional to circuit voltage. The instant of fault-current initiati... View full abstract»

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  • Testing EHV Station Insulation for Performance in Contaminated Conditions

    Publication Year: 1968, Page(s):448 - 454
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1574 KB)

    This technical paper deals with two phases of wet testing of EHV station insulators; one for conventional rainfall tests with prescribed rate of precipitation and water resistivity and the other for artificial contamination or pollution tests under wet conditions. The authors recommend a change in USA Standards for rate of precipitation and resistivity of water and offer supporting test data confi... View full abstract»

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  • Transient Resistance of Conductors

    Publication Year: 1968, Page(s):455 - 462
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1564 KB)

    Practical calculations of transient resistance effects in conductors are reported. Included are the current density distributions in cylindrical and semi-infinite solid conductors for an applied surface step electric field E, and the density in a flat wide conductor. Two analogies are used to yield useful results: thermal diffusion in a cylinder and voltage transients on a semi-infinite transmissi... View full abstract»

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  • Distribution System Recovery Voltage Characteristics: I - Transformer Secondary-Fault Recovery Voltage Investigation

    Publication Year: 1968, Page(s):463 - 487
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11938 KB)

    Distribution transformer secondary faults are shown to be potentially difficult for a primary interrupting device to clear. Evaluation test programs, therefore, should include this type of fault-interrupting test. Secondary fault recovery voltage data presented is derived from synthetic techniques, field interrupting tests and laboratory interrupting tests. TRV frequency is confirmed to be inverse... View full abstract»

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  • Basic Principles of Planning VAR Control on the American Electric Power System

    Publication Year: 1968, Page(s):488 - 495
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1850 KB)

    The broad principles are described which are used in the planning of VAR supply and control on the American Electric Power System. The discussion relates to the selection, utilization, and coordination of various VAR supply and control equipment, such as generators, synchronous condensers, static capacitors, and shunt reactors. Emphasis is placed on the importance of a well planned and coordinated... View full abstract»

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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