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IEEE Transactions on Industry and General Applications

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  • The Thyristor Electronic Transformer: a Power Converter Using a High-Frequency Link

    Publication Year: 1971, Page(s):451 - 457
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2352 KB)

    The electronic transformer is a device which behaves in the same manner as a conventional power transformer in that it steps voltage levels up or down while providing isolation and can accommodate load current of any power factor. It contains thyristor power switches which convert the low-frequency (dc to 400-Hz) voltage wave to a high-frequency (in the order of 10 000 Hz) wave. A comparatively sm... View full abstract»

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  • Application of New Methods for Calculating Short-Circuit Duties and Power Circuit-Breaker Capabilities

    Publication Year: 1971, Page(s):290 - 302
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3394 KB)

    The more salient points in the application of ac high-voltage circuit breakers according to new Standards C37.010 1964 and C37.5-1969 are outlined. The relationship between circuit-breaker rated interrupting and momentary capabilities and the corresponding calculated duties is defined. Areas of ambiguity, omissions, and controversy which exist in the standards are under review at the present time.... View full abstract»

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  • Design Considerations for Microwave Oven Cavities

    Publication Year: 1970, Page(s):74 - 80
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4212 KB)

    The heating mechanism in a microwave oven results from the interaction of a high-frequency electromagnetic field and the food within it. In most ovens the field is generated by a magnetron which converts dc energy to high-frequency energy at approximately 2450 MHz. This energy is then propagated into the oven chamber which is, in reality, a multimode resonant cavity where the energy is reflected f... View full abstract»

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  • General Analysis of Three-Phase Inverters

    Publication Year: 1969, Page(s):672 - 679
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2706 KB)

    A method of analysis for three-phase inverters is described. The method is based on Park vectors [1], [2] and predicts the waveforms of inverter quantities under various load conditions. The procedure discussed can be used to determine the commutation sequence of a pulsewidth modulated inverter. The current distribution of the inverter can be obtained from the current vector. The vectors of the in... View full abstract»

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  • Zener diode - a protecting device against voltage transients

    Publication Year: 1969, Page(s):481 - 488
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2467 KB)

    This paper begins with a discussion of the different modes of operation of a zener diode and continues with a study of its behavior during voltage transient conditions. A critique of the accepted electrical analogies of the thermal circuit of a zener diode is conducted, and the analysis of the thermal response of a zener diode to a power pulse is made in a highly simplified thermal model. A brief ... View full abstract»

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  • Resistance of Low-Voltage AC Arcs

    Publication Year: 1970, Page(s):607 - 616
    Cited by:  Papers (59)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5187 KB)

    Arcing tests conducted in the electrical laboratory indicate that the most probable value of resistance of the low-voltage arc in ohms is equal to 40 divided by the arcing current to the 0.85 power. It is believed that this equation is approximately correct for 120 to 600 volt, 60-Hz ac stable arcing as ir a typical arcing burn-down in a panelboard or switchboard in which the arc length is approxi... View full abstract»

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  • Electrical Safety in Industrial Plants

    Publication Year: 1971, Page(s):10 - 16
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1172 KB)

    Many who handle electrical equipment mistakenly believe their tolerance to electric shock is related to their ability to withstand the pain of the shock. Actually, the lethal incidence is a function of current passage through the heart region, where there are no sensory nerves to detect pain. Additionally, the onset of possibly lethal currents is only marginally higher than those ranked just painf... View full abstract»

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  • Torque Pulsations in Induction Motors with Inverter Drives

    Publication Year: 1971, Page(s):318 - 323
    Cited by:  Papers (44)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2082 KB)

    Torque pulsations in induction motors would have an average value of zero and therefore are generally neglected by inverter induction machine system designs. A simple equivalent circuit method is presented for estimating the magnitude of torque fluctuations under steady-state operating conditions based on single-phase equivalent circuits. The method indicates that torque fluctuations are due mainl... View full abstract»

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  • Ozone Generation in Positive Corona Electrostatic Precipitators

    Publication Year: 1969, Page(s):489 - 496
    Cited by:  Papers (50)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2417 KB)

    Ozone generation is one of the most important limitations in the design of an efficient electrostatic precipitator for use in air-conditioning systems. View full abstract»

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  • Constant Horsepower Operation of Induction Motors

    Publication Year: 1969, Page(s):552 - 557
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1937 KB)

    As an electromechanical transducer, the squirrel-cage induction motor is simple and rugged. With variable-frequency inverters it is possible to operate an induction motor over a wide range of speeds, supplying a constant horsepower load. Performance is a function of sizing of motors and sizing of inverters. These relationships are explored on a fundamental basis. View full abstract»

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  • The Use of Concrete-Enclosed Reinforcing Rods as Grounding Electrodes

    Publication Year: 1970, Page(s):337 - 348
    Cited by:  Papers (54)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4470 KB)

    The findings of Ufer that concrete-encased metal objects were effective in providing improved grounding under adverse soil conditions suggests that the reinforcing framework of footings for the columns of structural steel buildings would provide effective grounding function and means. Ensuing tests in high, medium, and low resistivity soils indicate that the grounding capability of such reinforced... View full abstract»

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  • Electrical Noise Reduction in Industrial Control Systems

    Publication Year: 1969, Page(s):259 - 265
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2073 KB)

    Equipment malfunctions caused by electrical noise transients have costly consequences. This unacceptable economic drain dictates that effective programs and practices be established to eliminate the adverse effects of noise. The responsibility for noise control falls to three principal participants in the installation: the equipment builder, the installer, and the user. Each must assume his share ... View full abstract»

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  • Commutation dv/dt Effects in Thyristor Three-Phase Bridge Converters

    Publication Year: 1968, Page(s):665 - 672
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2373 KB)

    A significant factor to be considered in properly designed thyristor converter circuits is dv/dt. The intent of this paper is to analyze a three-phase bridge circuit and show the following. 1) dv/dt faults due to turn-on transients are a threat only for operation in the inverter mode. 2) dv/dt faults due to the thyristor recovery transient are a threat for rectifier operation from about 50 to 0 pe... View full abstract»

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  • Linear Induction Motor for High-Speed Ground Transportation

    Publication Year: 1971, Page(s):632 - 642
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2990 KB)

    The basic energy conversion relationship of a linear induction motor is examined by a combination of field and circuit theory. Both homogeneous and composite rails have been considered. From the equations obtained, parametric and tradeoff studies are performed to determine rotor material, rotor thickness, air-gap thickness, stator winding distribution, operating frequency, slip, and synchronous ve... View full abstract»

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  • Slip Power Recovery in an Induction Motor by the Use of a Thyristor Inverter

    Publication Year: 1969, Page(s):74 - 82
    Cited by:  Papers (25)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2240 KB)

    The low-speed efficiency of an induction motor is improved by rectifying slip-frequency power, inverting this to line frequency, and injecting it back into the supply directly (line feed-back) or through auxiliary stator windings (stator feedback). Torque-speed curves then have the nature of a variable-speed drive. The low power factor and nonsinusoidal supply current of the line feedback connecti... View full abstract»

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  • Reevaluation of Lethal Electric Currents

    Publication Year: 1968, Page(s):467 - 476
    Cited by:  Papers (109)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2945 KB)

    Low-frequency electric currents of a few milliamperes flowing through the body cause muscular contractions. In the arm such an effect may make a subject unable to let go of a live conductor. The highest currents which 99.5 per cent of men and 99.5 percent of women are able to let go have been shown to be 9 and 6 mA, respectively. Currents somewhat larger than this, in the range of 20 to 40 mA, pas... View full abstract»

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  • Modes of Operation of Three-Phase Inverters

    Publication Year: 1969, Page(s):680 - 685
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (817 KB)

    Three-phase inverters have different modes of operation, while the load power factor angle varies over a 3600 range. A method of analysis is described which makes it possible to find these modes of operation. The method is based on the use of Park vectors. These vectors-generally used in the analysis of three-phase ac machines-are composed of the instantaneous values of a three-phase system. Volta... View full abstract»

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  • Application of Series Capacitors for Voltage Regulation, Fault Current Limitation, and Voltage Flicker Control

    Publication Year: 1969, Page(s):465 - 469
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4157 KB)

    Recent developments in equipment for protection of series capacitors, damping of resonance, and limitation of fault currents provide a useful means for reducing voltage drop and flicker when induction motors are started or suddenly loaded, and to improve operating conditions of a circuit during normal conditions by decreasing voltage regulation and by reducing short-circuit current during faults o... View full abstract»

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  • The Rating and Application of SCRs Designed for Power Switching at High Frequencies

    Publication Year: 1966, Page(s):5 - 15
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1931 KB)

    Inverter, chopper, and other pulse applications, operating at repetition rates up to 25 000 pps (pulses per second), are very demanding for the silicon controlled rectifier because of the high rates of rise of anode current (di/dt) which are imposed. The di/dt rating of the SCR is important since high di/dt of anode current produces excessive heating in the device and, if this is not controlled, d... View full abstract»

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  • Cycloconverter Control of the Doubly Fed Induction Motor

    Publication Year: 1971, Page(s):95 - 100
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4292 KB)

    A new variable speed commutatorless electric drive system has been developed which has a speed-torque characteristic similar to that of a dc series motor. Efficient use of active material was attained by series connecting rotor and stator windings of the rotating machine and by achieving control over the torque angle relationship between rotor and stator MMF waves. Stabilized operation results fro... View full abstract»

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  • Highly Regulated DC Power Supplies

    Publication Year: 1966, Page(s):341 - 345
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3264 KB)

    The design and application of highly regulated dc power supplies present many subtle, diverse, and interesting problems. This paper discusses some of these problems (especially in connection with medium power units) but emphasis has been placed more on circuit economics rather than on ultimate performance. Sophisticated methods and problems encountered in connection with precision reference suppli... View full abstract»

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  • Proposed Integrated Circuit for Appliance or Process Control

    Publication Year: 1968, Page(s):520 - 526
    Cited by:  Papers (1)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2056 KB)

    There is an accelerating trend toward the development of integrated circuit designs which offer the control industry complete functional building blocks on a single semiconductor chip. This paper describes the results of one such design for the ON-OFF control function, the TRIGAC zero crossing switch. The TRIGAC, when combined with an SCR or TRIAC power switch and a small number of passive compone... View full abstract»

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  • The Sleeve Induction Motor for High-Performance Servomechanisms

    Publication Year: 1966, Page(s):151 - 157
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2535 KB)

    The order-of-magnitude reduction in effective inertia provided by the conductive-sleeve induction motor, coupled with advances in high-power solid-state devices, make all-electric servo systems feasible in certain applications in which the inertia of the squirrel cage or solid iron rotor would be prohibitive. Low inertia in the sleeve motor is obtained at the expense of real and reactive power req... View full abstract»

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  • Electric Heating Load Analysis

    Publication Year: 1965, Page(s):149 - 152
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (725 KB)

    The accurate prediction of load characteristics-maximum daily load cycles as well as annual energy usage-is essential for the development of the electric space heating market by electric utilities. Adequate measurements of existing installations, the most reliable method of load analysis, is impossible for new heating device concepts or if the installations do not exist. A commonly used method of ... View full abstract»

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  • Application of Transformers for the Petroleum Industry

    Publication Year: 1969, Page(s):618 - 623
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4368 KB)

    This paper provides guidance for proper selection of transformers by type to meet various operating conditions encountered in the petroleum industry. Transformer characteristics, utilization of force cooling, loading transformers by temperature, and benefits to be gained by proper maintenance are discussed. Observation of these guidelines can result in economic and most efficient use of power tran... View full abstract»

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  • Plugging an Induction Motor

    Publication Year: 1970, Page(s):10 - 18
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2571 KB)

    Plug stopping a low-inertia squirrel-cage induction motor can provide a very quick stop, but the motor draws high peak currents from the power system and delivers high transient torques to the driven machinery. This engineering phenomena is well documented, yet the potential pitfalls of plugging applications are often not appreciated. The induction motor is so widely used in industry that a review... View full abstract»

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  • Insulation Resistance and High-Potential Testing: Advantages and Limitations

    Publication Year: 1969, Page(s):326 - 332
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3677 KB)

    Downtime caused by electrical equipment breakdown or cable faults can often be substantially reduced by the use of highvoltage dc testing as a maintenance tool. The relative merits of ac versus dc testing, general principles of dc testing, types of tests, methods of performing the actual tests, and interpreting the results are explained. The value of insulation resistance measurements and their re... View full abstract»

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  • Hermetic Refrigeration Compressors as Applied to Self-Contained Room Air-Conditioners

    Publication Year: 1968, Page(s):567 - 574
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2383 KB)

    This paper deals with the application of a reciprocating hermetic compressor to a room air-conditioner. This application in a particular unit has a definite affect on the life expectancy of the compressor. A review is made of the ideal refrigeration cycle for a hermetic compressor. The cycle is approached in the simple household refrigerator design and is compared to the refrigeration cycle for a ... View full abstract»

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  • AC Motor Supply with Thyristor Converters

    Publication Year: 1966, Page(s):334 - 340
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7657 KB)

    Several circuits and devices are discussed which are used in European practice to control wound-rotor and squirrel-cage induction motors so as to reproduce the essential characteristics of dc motors. The application of thyristors is shown to make possible closely controlled, fast response operation of ac motors in single-and 4-quadrant service. View full abstract»

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  • In-Line Gasoline Blending at Suntide Refining

    Publication Year: 1967, Page(s):159 - 167
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5095 KB)

    An in-line gasoline blender installed at the Suntide Refinery, Corpus Christi, Texas, is discussed. The blender will produce blended gasoline at a maximum rate of 6000 barrels per hour. Up to eleven component streams are controlled to give the final gasoline blend. Each stream is controlled by a digital control system to maintain that component as a fixed percentage of the total blend. View full abstract»

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  • The Separately Excited DC Traction Motor Applied to DC and Single-Phase AC Rapid Transit Systems and Electrified Railroads, Part II---Application

    Publication Year: 1971, Page(s):650 - 657
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1431 KB)

    The characteristics and the construction of the separately excited dc traction motor has been described in [1]. This type of motor can be used for traction only because of the availability of large power thyristors. In this paper, the type of control circuit required in order to use the separately excited dc motor (dc-dc chopper or ac-dc converters) will be investigated depending on the power supp... View full abstract»

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  • The Magic of I2t

    Publication Year: 1966, Page(s):384 - 392
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2975 KB)

    Evaluation of the effects of a short-time irregular-shape current pulse on the conductors and devices through which such current pulses pass can be a perplexing problem to the industrial power system engineer, as well as to those working in other areas. The adverse effects may range from a nuisance mal-function in the overall circuit to a catastrophic explosive failure in power circuit equipment. View full abstract»

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  • Important Functions Performed by an Effective Equipment Grounding System

    Publication Year: 1970, Page(s):545 - 552
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3045 KB)

    The equipment grounding system concerns itself with the interconnection and grounding of nonelectrical conducting material which either encloses or is adjacent to energized electric power conductors. Its purpose is to assure that the building containing the electrical system, or the occupants of that building, are not subjected to a dangerous or objectionable environment condition incidental to th... View full abstract»

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  • Sensitive Ground Relay Protection for 6900-Volt Motors on a High-Resistance Grounded Chemical Plant Distribution System

    Publication Year: 1965, Page(s):435 - 438
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (718 KB)

    In a large chemical plant built in 1946, a 6900-volt ungrounded primary distribution system was installed initially. After approximately ten years of operation, in which the plant electrical load had increased to approximately twice its original value, it was decided to convert to high-resistance grounding on the 6900-volt system. Shortly after the installation of the high-resistance grounding sys... View full abstract»

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  • Installation and Method of Recording Electric Motor's Torque-Speed Curve Under Steady-State and Dynamic Regimes

    Publication Year: 1971, Page(s):500 - 503
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2964 KB)

    A method is described for automatic recording of induction motors torque-speed curve M = f(n), both under steady and dynamic states, which is more rapid and accurate than presently known methods. The controlled dynamic state of recording is discussed. Experimental results are given. View full abstract»

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  • A New Ground Fault Protective System for Electrical Distribution Circuits

    Publication Year: 1967, Page(s):217 - 227
    Cited by:  Papers (43)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7671 KB)

    Distribution circuits which are solidly grounded or grounded through low impedance present a problem relative to fast clearing of ground faults. This is especially true in low-voltage grounded Y circuits which are connected to bus ducts or long runs of metallic conduct. The problem involves sensitivity in detecting low ground fault currents as well as coordination between main and feeder circuit p... View full abstract»

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  • Dynamic Evolution of Events Accompanying the Low-Voltage Discharges Employed in EDM

    Publication Year: 1967, Page(s):302 - 309
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7542 KB)

    Experimental studies of the evolution of events accompanying a transient, low-voltage sparkover-initiated discharge between closely-spaced electrodes in a liquid dielectric are described. The discharge parameters and the electrode configuration are similar to those found in electrical discharge machining (EDM) applications. High-speed photomicrographic records of the dynamic evolution of the disch... View full abstract»

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  • An Electronic Clothes Dryer Control

    Publication Year: 1965, Page(s):343 - 349
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2760 KB)

    Since its introduction into the home, the clothes dryer has received many modifications and improvements. One of the most recent has been the addition of an electronic control, which terminates the drying cycle when the clothes have reached the appropriate dryness. After loading the machine, the housewife sets the control for the degree of dryness desired; the dryer will automatically turn off whe... View full abstract»

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  • Surge Suppressors for the Protection of Solid-State Devices

    Publication Year: 1966, Page(s):44 - 52
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5361 KB)

    Semiconductor devices are sensitive to overvoltages and must be protected against such potential sources of damage. Typical devices used for this purpose are capacitors, selenium diode suppressors, and avalanche diodes. In many industrial applications, however, switching overvoltages contain so much energy that these devices are inadequate, not in terms of voltage limiting capability, but in terms... View full abstract»

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  • Control Problems of Rotary Glass-Working Machinery

    Publication Year: 1969, Page(s):192 - 198
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6423 KB)

    The glass industry prefers mechanical or hydraulic control systems over electrical control systems. This choice is often based on previous experiences where electrical controls have shown low reliability and high maintenance cost when exposed to the heat, light, dirt, sand, broken glass, and rapid temperature shifts found in glass plants. The special problems of rotating glass machines are present... View full abstract»

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  • Low-Voltage Magnetron Application for Microwave Cooking

    Publication Year: 1968, Page(s):561 - 566
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3125 KB)

    System requirements for domestic electronic ovens are outlined with emphasis on low cost and long life. A low-voltage magnetron permits operation from a voltage doubler supply, thus avoiding use of an expensive plate transformer. Magnetron design factors include frequency, power, and tolerance to a wide range of load impedance. A complete RF generator is described which meets the desired specifica... View full abstract»

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  • The Electrical Design of an 84-Inch Aluminum Cold Rolling Mill Installation

    Publication Year: 1965, Page(s):232 - 240
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5238 KB)

    The paper describes the electrical facilities required for a modem rolling mill. Emphasis is placed on control room layout, motor and static panel ventilation, and layout of auxiliary equipment. Other features covered include primary distribution, bus work, wiring methods, noise control, and elimination of a separate motor room bay and crane, as well as several minor features that depart from acce... View full abstract»

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  • An AC Equivalent Circuit for a Cycloconverter

    Publication Year: 1966, Page(s):358 - 362
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1972 KB)

    An equivalent circuit for a cycloconverter is developed which is valid for both ac and dc outputs. A relatively simple and straightforward derivation is presented which results in a new insight into the real reactive voltage drops in cycloconverter power circuits. Applications of this equivalent circuit in the analysis of power systems are discussed and possible extensions of the equivalent circui... View full abstract»

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  • Reliability Insurance---When It Is Practical

    Publication Year: 1968, Page(s):375 - 378
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1858 KB)

    The components of industrial and commercial power distribution systems are subject to electrical breakdown. There are many factors which affect the exposure and the severity of the accident. The potential can be minimized by utilizing quality appratus well-suited for the application, adequately maintained, properly protected, and a well-organized safety practice. Never-theless, serious electrical ... View full abstract»

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  • Cement Making in India

    Publication Year: 1969, Page(s):121 - 140
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4228 KB)

    The Indian cement industry has shown remarkable growth, and under the fourth Five-Year Plan, by the end of 1971, it is expected that the annual production capacity will be approximately 25-26 million tons. The available limestone reserves, the main raw material, are estimated to be about five billion tons. The principal fuel, coal, is also available. Both dry and wet manufacturing processes are ad... View full abstract»

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  • Proposed Recommended Practices for Cement Plant Power Distribution

    Publication Year: 1966, Page(s):16 - 29
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3307 KB)

    The continuing expansion and modernization program in the cement industry has placed an increasing importance on the cement plant power distribution system. The use of fewer larger production units and the increased use of automatic controls has placed greater stress on the adequacy and reliability of the power system. Safety, capacity, reliability, and low maintenance, all at a reasonable cost, a... View full abstract»

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  • The Practical Cycloconverter

    Publication Year: 1968, Page(s):141 - 144
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4020 KB)

    A high power capacity frequency conversion system that employs a unique combination of new semiconductor devices has recently been developed and placed in full scale operation. The classical cycloconverter in this embodiment has been reconfigured with thyristors (or silicon controlled rectifiers) in the power circuit with monolithic integrated circuitry for controls. The previous short-comings of ... View full abstract»

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  • Modern Lighting System Design for the Holland Tunnel

    Publication Year: 1965, Page(s):339 - 342
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5524 KB)

    In 1927, a modem vehicular tunnel lighting system consisted of incandescent lamps mounted within the tunnel walls to provide illumination on the roadway. New York's Holland Tunnel, which was opened to traffic during that year, was designed with such a lighting system. In 1960, it was decided to modernize this system. To accomplish this, a new fluorescent lighting fixture and system that had to pro... View full abstract»

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  • Electric Drilling Rig Developments

    Publication Year: 1967, Page(s):194 - 197
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2120 KB)

    The electrification of oil field drilling equipment has for the most part taken place on offshore installations and mobile units. Other applications of oil field drilling equipment have generally not utilized available electric transmissions because of factors not readily recognized. An attempt is made to review the design engineer's considerations for drilling equipment design and important envir... View full abstract»

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  • An SCR Inverter with Good Regulation and Sine-Wave Output

    Publication Year: 1967, Page(s):176 - 187
    Cited by:  Papers (81)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3386 KB)

    SCR inverters of the sine-wave type are well known. Some have the disadvantages of poor regulation, very high component voltages when operating under heavy load, and an inability to operate with no load. View full abstract»

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Aims & Scope

This Transaction ceased production in 1971. The current retitled publication is IEEE Transactions on Industry Applications.

Full Aims & Scope