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IEEE Transactions on Industry Applications

Issue 5 • Sept. 1981

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  • Table of contents

    Publication Year: 1981, Page(s): c1
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  • IEEE Industry Applications Society

    Publication Year: 1981, Page(s): c2
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  • Analytical Method for Coordination of Surge Arresters with Current-Limiting Fuses

    Publication Year: 1981, Page(s):445 - 451
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1699 KB)

    Many industrial power systems have lightning exposure, requiring surge (lightning) arresters; dry-type transformers, requiring low protective levels; and high available fault currents, making the use of current-limiting fuses desirable. On occasion, current-limiting fuse arc voltages have resulted in destruction of low characteristic arresters. A traditional guideline has been to select arrester t... View full abstract»

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  • Discussion of Analytical Method for Coordination of Surge Arresters with Current-Limiting Fuses

    Publication Year: 1981, Page(s):451 - 453
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  • NEMA Nominal Efficiency-What Is It and Why

    Publication Year: 1981, Page(s):454 - 457
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1702 KB)

    With the continuing escalation of the cost of electrical energy, motor manufacturers and appliers are increasingly concerned with the energy conservation available from high efficiency electrical motors. The revised NEMA Standard on Motor Efficiency is described, as well as its use by motor manufacturers and users and the several years of work invested in preparing and validating the standard. View full abstract»

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  • Should I Select a Service Factor Motor?

    Publication Year: 1981, Page(s):458 - 462
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1773 KB)

    The selection of a motor having a 1.15 service factor to a 1.0-service factor motor of the next larger horsepower is compared. This comparison includes first cost, losses, temperature distribution, efficiency, torque performance, and expected life of the alternate selections. In most cases, the larger 1.0-service factor machine is shown to be the preferred selection. View full abstract»

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  • Silicone Transformer Liquid: Use, Maintenance, and Safety

    Publication Year: 1981, Page(s):463 - 468
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1529 KB)

    Silicone transformer liquid has been in use in over 10 000 small and medium power transformers in the United States since 1972. In this time, the reliability and performance of silicone liquid has been proven. Silicone liquid is chemically inert and thermally stable. These characteristics will allow for a long and useful life and ease of reclaiming contaminated liquid. Similar procedures are used ... View full abstract»

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  • Multiple Levels and Classifications of Emergency Electrical Power Systems

    Publication Year: 1981, Page(s):469 - 472
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2220 KB)

    Today, designers are faced with the challenge of ensuring that all important facility functions are protected from power failures both externally and internally by providing one or more backup supply to the primary source (typically utility service). Each application has its own unique requirements of the Emergency Electrical Power Systems (EEPS) for performance, reliability, and speed to assume t... View full abstract»

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  • Analysis Techniques in AC/DC Power Systems

    Publication Year: 1981, Page(s):473 - 480
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2136 KB)

    Many present-day industrial power systems have combined ac/dc power distribution systems. A typical example is a coal mine power system, where ac is used for running the mining equipment and dc is used for track haulage, etc. Also, the topology of the dc network is constantly changing due to the movement of locomotives along the track. Methods are described that can be used to carry out load-flow ... View full abstract»

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  • Production Operation of Submersible Pumps with Closed-Loop Adjustable Speed Control

    Publication Year: 1981, Page(s):481 - 489
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3905 KB)

    Submersible pump performance in a given installation is determined by the intersections of the pumping load line with the pump capability curves. With fixed pump speed, the operating point on the head-capacity curve moves as the well productivity changes, and operation may be then outside the desired range. Efficiency and reliability are thereby reduced. With adjustable speed pumping, the operatin... View full abstract»

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  • Calculation of Optimum Preventive Maintenance Intervals for Electrical Equipment

    Publication Year: 1981, Page(s):490 - 495
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2362 KB)

    Formulas to calculate the optimum interval of preventive maintenance and the optimum interval of diagnostic testing of electrical equipment are presented. Each user can calculate his own custom intervals using the formulas which are based on least total annual costs. The user must have his own data base of equipment failures similar to the example presented. Using 10000 failures of electric utilit... View full abstract»

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  • New Trends in Electrostatic Precipitation: Wide Duct Spacing, Precharging, Pulse Energization

    Publication Year: 1981, Page(s):496 - 501
    Cited by:  Papers (16)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2346 KB)

    Increased research in electrostatic precipitation has resulted in the emergence of promising new technologies. In a new design concept already widely used in Japan, the precipitator duct spacing is increased from the traditional 200-300 mm up to 400-600 mm, and the precipitator voltage is raised correspondingly, with precipitator performance remaining almost unchanged for the same precipitator vol... View full abstract»

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  • Model Calculations of the Interaction Between an AC Corotron and a Moving Dielectric

    Publication Year: 1981, Page(s):502 - 506
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1772 KB)

    The dependence of the voltage on a moving dielectric exiting an ac corotron on such input variables as corotron frequency, process speed, ac current, dc current, position on the dielectric, and incoming potential are discussed. The voltage excursion occurring as the dielectric passes beneath the ac corotron are shown. The results demonstrate that surprisingly large voltage excursions can occur, wi... View full abstract»

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  • Metal Circulation in Two-Phase and Three-Phase In-Line Electrode Arc Furnaces

    Publication Year: 1981, Page(s):507 - 511
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1587 KB)

    The calculation of metal circulations in a three-phase in-line electrode arc furnace to obtain the most likely locations of refractory wear as a function of the phasing of supply currents is discussed. The approach is analytic, and the result of calculations indicate the directions and the expected magnitudes of circulations (curl) in the furnace at various locations. View full abstract»

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  • Glass Conductance Controlled Electric Forehearth

    Publication Year: 1981, Page(s):512 - 517
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2465 KB)

    The heating currents flow longitudinally between transverse submerged electrodes. Their arrangement distributes heating current throughout the glass body without zone control interference while using a minimum number of electrodes. Conventional gas firing remains unchanged as an alternate mode of operation. Heating is controlled to an average glass electric conductance setting (as measured in the ... View full abstract»

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  • A New Neutral-Point-Clamped PWM Inverter

    Publication Year: 1981, Page(s):518 - 523
    Cited by:  Papers (2244)  |  Patents (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3856 KB)

    A new neutral-point-clamped pulsewidth modulation (PWM) inverter composed of main switching devices which operate as switches for PWM and auxiliary switching devices to clamp the output terminal potential to the neutral point potential has been developed. This inverter output contains less harmonic content as compared with that of a conventional type. Two inverters are compared analytically and ex... View full abstract»

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  • Novel Six-Step and Twelve-Step Current-Source Inverters with DC Side Commutation and Energy Rebound

    Publication Year: 1981, Page(s):524 - 532
    Cited by:  Papers (17)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4922 KB)

    Novel six-step and twelve-step current-source inverters (CSI) with dc side commutation and energy rebound capability are presented with detailed explanation of the circuit operation. The proposed inverters can operate in a very wide range of frequency and load variation by employing dc side commutation. Also, the energy rebound makes the use of low voltage silicon controlled rectifiers (SCR's) pos... View full abstract»

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  • Characteristics of Linear Synchronous Motor Drive Cycloconverter for Maglev Vehicle ML-500 at Miyazaki Test Track

    Publication Year: 1981, Page(s):533 - 543
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3995 KB)

    Maglev vehicle ML-500 in Japan attained a speed of 517 km/h on December 21, 1979. The linear synchronous motor (LSM) drive cycloconverter fabricated and submitted to the track test has a capacity of approximately 12 000 kVA in a continuously variable frequency range of 0-34 Hz with a sinusoidal current waveform. The current can be arbitrarily controlled in a range of 200-1300 A. Despite the rigoro... View full abstract»

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  • Now is the best time to join our society.

    Publication Year: 1981, Page(s): 544
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  • IEEE Industry Applications Society

    Publication Year: 1981, Page(s): 544-a
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  • Information for authors

    Publication Year: 1981, Page(s): 544b
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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