IEEE Transactions on Industry Applications

Issue 3 • May 1979

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  • Table of contents

    Publication Year: 1979, Page(s): c1
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  • IEEE Industry Applications Society

    Publication Year: 1979
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  • A Case History of Motor Current Contribution to an Industrial System Short Circuit

    Publication Year: 1979, Page(s):229 - 235
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2274 KB)

    Oscillograph recordings made during a severe primary short circuit on an industrial power system include the total three-phase currents contributed by plant motors to the fault. An analysis of the recorded motor current contribution to estimate the initial magnitude and time variation is described as well as a calculation of the motor contribution using procedures of ANSI standard application guid... View full abstract»

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  • Lightning Protection of Buildings

    Publication Year: 1979, Page(s):236 - 240
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1827 KB)

    Extending initial work on this subject, which developed the circular-sided conical zone of protection below and around grounded high objects, the interrelationship between stroke current magnitude and radius of the sides of the cone is developed. Further, the minimum magnitude of stroke current which is likely to be damaging to structures is determined to be approximately 10 000 A for which the cr... View full abstract»

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  • A Closer Look at ``the Facts of Life'' in Ground Mat Design

    Publication Year: 1979, Page(s):241 - 250
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3091 KB)

    Rigorous analytical methods making use of the digital computer permit accurate modeling and evaluation of ground mat designs. Through imaginative use of these methods, the design of a ground mat system can be refined to the point where the need for costly and unnecessary conservatism can be eliminated. This paper demonstrates how improved design precision is possible with a ground mat study based ... View full abstract»

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  • Compliance Guide: OSHA and National Electrical Code Requirements for Grounding and Ground-Fault Protection on Construction Sites

    Publication Year: 1979, Page(s):251 - 266
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4382 KB)

    After more than three years of deliberations, including several public hearings, OSHA has issued standards covering ground-fault protection for personnel on construction sites. These standards became effective on February 22, 1977. The requirements in the new standards are in addition to, not in lieu of, any other requirements for system-grounding and equipment-grounding conductors on construction... View full abstract»

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  • Charge Separation During Splashing of Liquid Droplets in the Presence of an Electric Field

    Publication Year: 1979, Page(s):266 - 272
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1779 KB)

    When conductive liquid droplets splash on solid or liquid surfaces, fragments are ejected from the surface that in the presence of an electric field can be inductively charged to the opposite polarity. This phenomenon can reduce the deposition efficiency of electrostatically applied conductive coatings such as water base paints. The charge separation process was investigated by collecting and meas... View full abstract»

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  • Electrostatic Generation of Fine Paint Droplets

    Publication Year: 1979, Page(s):273 - 276
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1714 KB)

    Small vibrating capillaries have been used with good success to generate uniform liquid droplets as small as 20 μm in diameter. However, this technique has not been successful for viscous highly pigmented fluids such as paints. Since paint tends to clog fine capillaries, the smallest droplet that can be reproducibly obtained with conventional methods is about 400 μm. A method is de... View full abstract»

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  • Electric Charging of Particles Near the Corona Glow Region in Air-CO2 Mixtures

    Publication Year: 1979, Page(s):276 - 287
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2973 KB)

    Addition of 3 to 65 percent C02 to air results in the formation of an unusual glow around a positive corona wire and in a corresponding erratic charging of particles traversing this region. The results of the charging experiments for pellets shot in this glow region parallel to the corona wire are presented, as well as a possible explanation of the phenomenon. It is expected that the result... View full abstract»

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  • Corona as a Means of Minimizing the Electric Current Surge from a DC High-Voltage Terminal

    Publication Year: 1979, Page(s):288 - 290
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1612 KB)

    It is often necessary to reduce the total energy released by an accidental spark discharge from a dc high-voltage terminal. The paper presents the results obtained with two experimental setups designed to investigate the effects of inserting a corona element in series with such terminals. The spark discharge onto a 23-cm diameter spherical probe was measured for the same terminal voltage with and ... View full abstract»

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  • Electrostatic Separation of Coal Macerals

    Publication Year: 1979, Page(s):291 - 293
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1268 KB)

    Present threats of energy shortages have placed an increasing importance on coal as a fossil fuel. Government restrictions on the maximum permissible S02 content in coal burning plant effluents have necessitated sulphur reduction processes. By using an apparatus developed by the researchers at the University of Western Ontario, it has been demonstrated that constituent macerals of the coal may be ... View full abstract»

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  • Current Transformer Burden and Saturation

    Publication Year: 1979, Page(s):294 - 303
    Cited by:  Papers (25)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3494 KB)

    A tutorial review of the steady-state and transient behavior of current transformers used with power system relays and meters is presented. ANSI accuracy standards are discussed and consideration is given to the significance of burden and saturation in the application of protective relays. View full abstract»

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  • Motor Protection Characteristics of Ambient Insensitive Overload Devices

    Publication Year: 1979, Page(s):303 - 308
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3280 KB)

    The performance of thermal overload devices with respect to the effect of ambient sensitivity factors on motor winding insulation temperatures is investigated. It is shown that ambient sensitivity characteristics must be defined in order to optimize output horsepower while maintaining insulation temperatures within design parameters. View full abstract»

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  • Current-Limiting Fuse Update - New Style Fuse for Protection of Semiconductor Devices

    Publication Year: 1979, Page(s):308 - 312
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3680 KB)

    Power equipment utilizing power diodes, silicon-controlled rectifiers (SCR's), and other semiconductor devices continues to take a greater role in electrical distribution systems. Rectifiers, uninterruptible power supply (UPS) systems, ac and dc solid state motor drives, solid state power controllers, and other such equipment require overcurrent protection suited to the special needs of the semico... View full abstract»

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  • State-Variable Steady State Analysis of a Phase-Controlled Cycloconverter-Induction Motor Drive

    Publication Year: 1979, Page(s):313 - 319
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4373 KB)

    An attempt to obtain directly the steady state performance of a phase-controlled cycloconverter-induction motor system by using state-variable techniques is presented. State-variable approach is used to generate without iteration, the unique set of initial conditions which will yield the steady state solutions instead of going through the transient state as by the step-by-step method. The inductio... View full abstract»

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  • Infrared Detection of Hot Spots in Energized Electrical Equipment

    Publication Year: 1979, Page(s):319 - 322
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2297 KB)

    An important aspect of plant operation is preventive maintenance of electrical apparatus. Local thermal overloads or bad electrical connections often appear as localized hot spots in energized electrical equipment. A survey of the use of infrared detection systems for location of such hot spots is presented. A tutorial introduction to infrared detection and imaging systems is given with emphasis o... View full abstract»

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  • Particulate Analysis Instrumentation for the Cement Industry

    Publication Year: 1979, Page(s):323 - 330
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3560 KB)

    At present, even though most cement plants are computer controlled, they depend on manual particle analysis and feed settings. Automatic process control through the use of continuous particle size analysis can provide the maximum obtainable throughput at optimum particle size. A new particle size measurement technology using a helium-neon laser and a unique optical filtering system has been report... View full abstract»

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  • Resource Benefits of Industrial Relighting Program

    Publication Year: 1979, Page(s):331 - 334
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3349 KB)

    The industrial relighting program can provide us an excellent opportunity for energy conservation as well as cost reduction. Electric energy saved from relighting with high pressure sodium lamps indirectly reduces oil consumption for power generation, which has a far-reaching significance on the national economy. The necessary steps in making a relighting study and different approaches to a religh... View full abstract»

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  • IEEE copyright form

    Publication Year: 1979, Page(s):335 - 336
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  • 1979 Committee Directory of the IEEE Industry Applications Society

    Publication Year: 1979, Page(s):336-a - xxx
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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