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Power Apparatus and Systems, IEEE Transactions on

Issue 5 • Date May 1968

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Displaying Results 1 - 23 of 23
  • 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
  • Modes of Corona Discharges in Air

    Publication Year: 1968 , Page(s): 1207 - 1215
    Cited by:  Papers (24)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (8150 KB)  

    Corona discharges in air exist under several distinctive forms, either pulsative or stable. The properties of different corona modes are analyzed as they appear in a cylindrical distorted field. Differences between dc and ac excitations are emphasized. Corona discharges may produce energy loss without detectable radio noise or high noise at low energy loss, depending upon their form of appearance.... View full abstract»

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  • Field and Laboratory Tests of Contaminated Insulators for the Design of the State Electricity Commission of Victoria's 500-kY System

    Publication Year: 1968 , Page(s): 1216 - 1239
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (9174 KB)  

    The results of field and laboratory tests on contaminated insulators, made to determine insulation level of the State Electricity Commission of Victoria's 500-kV transmission system, are presented, including performance of 220-kV lines operating in a very heavy contamination area, field measurements of the pollution and insulator flashover mechanism, development of artificial pollution for laborat... View full abstract»

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  • A Laboratory Investigation of Ferroresonance in Cable-Connected Transformers

    Publication Year: 1968 , Page(s): 1240 - 1249
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2031 KB)  

    Results of a full scale laboratory investigation into the ferroresonance phenomenon are presented. The investigation consisted of energizing and de-energizing three-phase 13-kV padmounted distribution transformers with single-phase cutouts. Applied cable lengths ranged from 100 to 5000 feet. In addition to three- phase switching, the application of resistive loading from 1 to 4 percent was also in... View full abstract»

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  • Correlation of Various RI Meters and Reading Comparison of RI Meter Operators on a 735-kV Line

    Publication Year: 1968 , Page(s): 1249 - 1259
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2949 KB)  

    This paper describes the results of a study, sponsored by Working Group No. 1 of the RI Subcommittee, on Hydro Quebec's 735-kV line. Various RI measuring techniques were used in obtaining frequency-spectrum and lateral profiles. Radio noise measuring locations were studied and compared with measuring practices for determining statistical RI levels of operating EHV lines. Comparison between differe... View full abstract»

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  • Working Range and Design of a Static Constant-Current Transformer

    Publication Year: 1968 , Page(s): 1259 - 1262
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (649 KB)  

    The subject of the paper is a novel constant-current device. A given constant-current transformer entails limitations on the stabilized current, on the load resistance for a given stabilized current, on the counter EMF, and on the supply voltage; these limitations are analyzed and relevant design relations are established. A universal normalized design diagram is derived and plotted. A design exam... View full abstract»

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  • Governor Tests by Simulated Isolation of Hydraulic Turbine Units

    Publication Year: 1968 , Page(s): 1263 - 1269
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4223 KB)  

    Test and adjustment of hydraulic turbine governors has been an unfortunately complicated process involving the optimization of several interrelated variables. In earlier years stable performance was achieved by empirical adjustments in the field on isolated load, but optimum was seldom achieved. In more recent years the interconnection of systems has denied the opportunity for testing of units on ... View full abstract»

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  • Static Inverter Standby AC Power for Generating Station Controls

    Publication Year: 1968 , Page(s): 1270 - 1274
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4602 KB)  

    The reverse transfer static inverter and static ac bus transfer switch system, as applied to power generating stations, are introduced. Equipment for which such protection is required and the power quality necessary are discussed. The proper protection methods for branch circuit coordination with static systems is described, using a particular power plant as an example. View full abstract»

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  • Design of Thermal Power Stations Overseas

    Publication Year: 1968 , Page(s): 1275 - 1282
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4378 KB)  

    This paper describes the process used by the British engineer for designing power stations outside the British Isles, with emphasis on those features abroad which present special problems as compared with home installations. It reviews first the procedural steps involved from a project's initiation to completion and commissioning of the plant, and then shows how the major design decisions are reac... View full abstract»

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  • A Preventive Maintenance Program for Hydroelectric Generator Windings

    Publication Year: 1968 , Page(s): 1283 - 1288
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2531 KB)  

    This paper describes a program for the preventive maintenance of hydroelectric generator windings. The program has been developed strictly from the operator's viewpoint. It is intended to provide a practical means of determining the condition and reliability of the winding insulation, and in addition, reveal maintenance techniques necessary to lengthen the winding life and to assure reliable opera... View full abstract»

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  • Considerations Affecting the Design Philosophy of Solid-State Exciters

    Publication Year: 1968 , Page(s): 1288 - 1299
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4896 KB)  

    The application of thyristor converters to the excitation of large generators as shunt connected solid-state exciters is described. Considerations important during the planning stage are discussed and some important exciter design details are given. The importance of the topic, control of power system stability by adjustment of generator excitation, is highlighted by reference to many other papers... View full abstract»

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  • Analog Simulation Technique for Modeling Parallel-Flow Heat Exchangers

    Publication Year: 1968 , Page(s): 1300 - 1305
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (951 KB)  

    One of the more common methods of determining the dynamic behavior of parallel-flow heat exchangers has been the development of a model for solution on a general-purpose analog computer. Because the analog by its inherent nature can only work with one independent variable (and most mathematical descriptions of a heat exchanger require two independent variables, time and space) the normal procedure... View full abstract»

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  • Influence of Excitation and Speed Control Parameters in Stabilizing Intersystem Oscillations

    Publication Year: 1968 , Page(s): 1306 - 1313
    Cited by:  Papers (24)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1915 KB)  

    Intersystem power oscillations have occurred between the interconnected utility systems of Saskatchewan, Manitoba, and Ontario (West System). Such power swings have been most evident when the power transmission angles on the interconnections or on certain internal 138-kV and 115-kV transmission have been of relatively great magnitude. The oscillations have been controlled or reduced by adjustment ... View full abstract»

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  • Gradient Methods for Load-Flow Problems

    Publication Year: 1968 , Page(s): 1314 - 1318
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (790 KB)  

    Gradient methods are applied to load-flow studies. It is shown that these are more relevant to the problem statement than the known methods. Steepest-descent and conjugate-gradient methods are adapted, but the main point made is that the load-flow can be reformulated as an optimization problem, thereby permitting recourse to other optimization methods. The numerical results obtained imply that suc... View full abstract»

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  • Proposed Definitions of Terms for Reporting and Analyzing Outages of Electrical Transmission and Distribution Facilities and Interruptions

    Publication Year: 1968 , Page(s): 1318 - 1323
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1498 KB)  

    The paper presents definitions prepared by the Joint Working Group on Performance Records for Optimizing System Design of the Subcommittees on Application of Probability Methods and System Planning of the IEEE Power System Engineering Committee. The purpose of the definitions is to foster uniformity and standardization of language among engineers engaged in reporting, analyzing, and predicting out... View full abstract»

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  • Four Methods of Power System Damping

    Publication Year: 1968 , Page(s): 1323 - 1329
    Cited by:  Papers (22)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1173 KB)  

    Techniques for damping power system swings have been studied by analog and digital simulation. View full abstract»

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  • Further Experience with Form-Wound Motorettes

    Publication Year: 1968 , Page(s): 1330 - 1341
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2652 KB)  

    Nineteen insulation systems for form-wound motor coils were tested according to IEEE No. 275, and were successfully designated Class A, B, F, or H. Systems evaluated included mica splittings, mica papers, and non-micaceous materials in combination with resinous treatments of various kinds. It was found that not only materials, but processing procedures, have a great effect upon the thermal capabil... View full abstract»

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  • Polyphase to Two-Axis Transformation for Real Windings

    Publication Year: 1968 , Page(s): 1342 - 1346
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (929 KB)  

    The effects of MMF and permeance harmonics on the N-phase to two-phase slip ring transformation are considered. Considerable simplifications occur if MMFs higher than the Nth can be neglected. Particular attention is given to both three-phase and squirrel-cage windings. Practical factors influencing the ¿,ß,O transformation and the choice of coefficients result from the former and the basis and ... View full abstract»

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  • Axis Transformations for Practical Primitive Machines

    Publication Year: 1968 , Page(s): 1346 - 1354
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1478 KB)  

    Transformations from the rotating reference frame of the slip-ring primitive to the quasi-stationary reference frame of the commutator primitive are developed with no limitations on winding MMF harmonics and air gap permeance harmonics other than those set by machine symmetry. The transformations are shown to reduce to Kron's classical transformation when harnonics of both MMF and permeance higher... View full abstract»

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  • A Transformer-Ratio-Arm Bridge for Measuring Large Capacitors Above 100 Volts

    Publication Year: 1968 , Page(s): 1354 - 1361
    Cited by:  Papers (18)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2734 KB)  

    A high-voltage bridge suitable for measuring capacitance ratios up to a million to one is described. The high ratio is realized by cascading a two-stage current transformer to a bridge based on the current comparator principle. Circuits that compensate for the lead impedances of large capacitors are presented. The bridge is direct reading in the capacitance ratio and the dissipation factor and the... View full abstract»

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  • Survey of Underfrequency Relay Tripping of Load Under Emergency Conditions

    Publication Year: 1968 , Page(s): 1362 - 1366
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (643 KB)  

    A survey of practices of utilities in the United States was made in 1966 to determine the application of underfrequency relays to trip load during system emergencies. Questionnaires giving the philosophy of the reporting utilities are summarized. View full abstract»

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  • Contributors

    Publication Year: 1968 , Page(s): 1367 - 1370
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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