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IEEE Transactions on Industry Applications

Issue 5 • Date Sept. 1978

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Displaying Results 1 - 16 of 16
  • Table of contents

    Publication Year: 1978, Page(s): c1
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    Freely Available from IEEE
  • IEEE Industry Applications Society

    Publication Year: 1978, Page(s): c2
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  • Electrical Energy Losses in Power Systems

    Publication Year: 1978, Page(s):373 - 387
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3369 KB)

    Today's power system engineer is perplexed by the pressure to ``do something'' about wasted energy. His need is to know where losses exist in system components, how he can measure them, what are the theoretical savings, and what he can do about them. An introduction to this mushrooming subject is given, typical loss data on electrical equipment are provided, and measurement problems are discussed.... View full abstract»

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  • Computer Control of an Industrial Electrical System with In-Plant Generation

    Publication Year: 1978, Page(s):387 - 396
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4625 KB)

    Methods, procedures, and details involved in the development of a computer control system for the optimization of a large industrial electrical system are discussed. The system includes unique approaches to load shedding, automatic kilowatt and kilovar control, demand control, and other supervisory functions. View full abstract»

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  • Placing a 20 000-hp Motor in Service

    Publication Year: 1978, Page(s):397 - 401
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2622 KB)

    Placing major pieces of electrical equipment in service is aided by a systematic approach to selection, specification, inspection, shipment, storage, check-out, and run-in. This paper describes the detailed planning that helped assure a successful start-up of a large electrical motor. Although a specific installation is described, it will be found that many of the procedures will be generally appl... View full abstract»

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  • Evaluating Motor Ground Insulation for Improved Operating Reliability

    Publication Year: 1978, Page(s):402 - 407
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1917 KB)

    Attention is directed toward the evaluation of motor insulation by a series of ac power factor and dc voltage-leakage tests at progressively higher voltages. A careful testing procedure is outlined that points out the need for uniform test conditions. Use of power factor tip-up, polarization indices, and voltage-leakage slopes are discussed as indicators of insulation quality before the dielectric... View full abstract»

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  • Constant Torque Operation of Induction Motors Using Chopper in Rotor Circuit

    Publication Year: 1978, Page(s):408 - 414
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2435 KB)

    A novel control scheme is investigated for operating induction motors in the constant torque mode. The basic control schemes and analysis of the steady-state performance of the system are presented. Circuit models are used to predict the performance characteristics. A new dc dynamic braking method is proposed and studied that provides very fast braking. Experimental results are presented to verify... View full abstract»

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  • Mathematical Modeling in the Design of Large Electric Smelting Furnaces

    Publication Year: 1978, Page(s):415 - 420
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1778 KB)

    The problem of scaling a slag resistance electric smelting furnace from the pilot plant stage to a full size production unit is considered. Several of the existing scaling methods are discussed with a view to pointing out their limitations. It is shown that some are clearly inappropriate for the scaling process since they neglect significant factors that influence the furnace performance. Among th... View full abstract»

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  • A Mathematical Model Describing Forces and Circulation in an Electric Smelting Furnace

    Publication Year: 1978, Page(s):421 - 426
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1138 KB)

    Conditions in the slag bath of an electric smelting furnace are examined as are several existing models for such furnaces. A digital model that provides an improved simulation of the slag bath is described. The model is used to determine the electrical resistance between electrodes and can be used to examine the nature of the electromagnetic forces that exist near the electrode tips. The mechanism... View full abstract»

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  • An Efficient Method of Calculating Parameters for Induction and Resistance Heating Installations with Magnetic Loads

    Publication Year: 1978, Page(s):427 - 432
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1092 KB)

    An efficient method of solving one-dimensional linear or nonlinear induction and resistance heating problems is described. Previous methods have formulated these problems in terms of matrix equations that can require a considerable amount of computer storage during solution. The method described avoids the matrix formulation. Rather, the solution proceeds in a step-by-step fashion so that when fie... View full abstract»

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  • Resistance Heating of a Circular Billet - Two Simple Analytic Models

    Publication Year: 1978, Page(s):433 - 437
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1351 KB)

    Two simple models are presented for calculating the ac-dc resistance ratio and power factor of a resistance heated magnetic biliet of circular cross section. The step-function magnetization model yields a normalized ac-dc resistance ratio graph applicable to any homogeneous magnetic billet for which the magnetization characteristic is known. The coupled-circuit model yields a set of unidirectional... View full abstract»

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  • Energy Saving Considerations in Mass Induction Heating

    Publication Year: 1978, Page(s):438 - 442
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2641 KB)

    Mass heating for rolling, forming, and forging applications normally involves large cross section and high tonnage. As a result of the extreme energy requirements, the current energy situation has created a totally new environment for process heating systems. More efficient induction heating processing techniques, equipment designs, and heating methods are discussed. Exploitation of current and ne... View full abstract»

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  • Electron Spectroscopy for Chemical Analysis: Applications to Materials for Electrophotography

    Publication Year: 1978, Page(s):443 - 447
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1996 KB)

    A brief outline of the technique of electron spectroscopy for chemical analysis (ESCA) is presented. The detail is sufficient for the understanding of the applications to two problems in electrophotography: i) the detection of mass transfer during contact electrification of Mylar and Teflon polymer films and ii) the change in triboelectric characteristics of polystyrene films due to surface oxidat... View full abstract»

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  • On the Nature of Poling by Corona Charging and the Pyroelectric Effect in PVF2

    Publication Year: 1978, Page(s):448 - 453
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2704 KB)

    The effect of corona charging (at 12.5 kV) of polyvinylidine fluoride (PVF2) is studied by infrared spectroscopy and X-ray diffraction techniques. The results show that changes in molecular conformation occur with such a poling process that is in agreement with Southgate. The pyroelectric coefficient was observed to increase significantly after such a poling, reaching a maximum value of ~3 ... View full abstract»

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  • Electrostatic Discharge Protection for Electroexplosive Devices

    Publication Year: 1978, Page(s):453 - 458
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2841 KB)

    Many electroexplosive devices as used in military and aerospace systems are susceptible to electrostatic discharge and can inadvertently fire. The problem can be analyzed and quantified by certain measurement procedures. A variety of protection techniques can be employed. Theory and performances of certain improved methods capable of protecting the system are presented. View full abstract»

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  • On a Semianalytic Method for Solving Laplace's Equation

    Publication Year: 1978, Page(s):458 - 460
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2193 KB)

    The advantages of semianalytic methods for solving Laplace's equation, compared to classical methods, have been pointed out recently. An approach of the former type is proposed here for twodimensional problems. The potential (or other physical quantities depending on the particular problem) is obtained in the form of a finite series: each term of this series corresponds physically to the potential... View full abstract»

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Aims & Scope

The scope of the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Thomas A. Nondahl
t.nondahl@ieee.org