By Topic

Proceedings of Electrical/Electronics Insulation Conference

4-7 Oct. 1993

Filter Results

Displaying Results 1 - 25 of 127
  • Proceedings of Electrical/Electronics Insulation Conference

    Publication Year: 1993
    Request permission for commercial reuse | PDF file iconPDF (486 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 1993, Page(s): xvi
    Request permission for commercial reuse | PDF file iconPDF (88 KB)
    Freely Available from IEEE
  • World class manufacturing

    Publication Year: 1993, Page(s):385 - 396
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1152 KB)

    The authors report on the challenge to American industry from overseas competition, particularly from Japan. The basic elements and philosophies of world class manufacturing (WCM) are discussed. The tools of WMC are described. Suggestions and recommendations obtained from actual manufacturing experience are presented View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transformer design using Windows

    Publication Year: 1993, Page(s):57 - 63
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    A number of software packages exist to help a programmer make the transition to the Windows environment. The programs are used to develop subprograms of "scripts" that instruct the Windows application to perform certain functions when a button is pushed or a field is entered. Illustrative examples are provided View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Evaluation of a carbonized foam electrode for DC high voltage continuity testing of magnet wire

    Publication Year: 1993, Page(s):147 - 151
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    A pair of electrically conductive carbonized foam pads can be used as the magnet wire contact electrode for direct current, high voltage continuity testing. The effects of different electrode configurations on DC HVC results of a magnet wire sample from each of the various size ranges are investigated. The variables critical to the carbonized foam electrode performance are under study for presenta... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Preliminary evaluation of motor insulation for variable speed applications

    Publication Year: 1993, Page(s):333 - 336
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Variable speed drives for electric motors produce surge voltages or voltage spikes with rates of rise to crest value that are equivalent to the rates of switching surges. Although the magnitude of voltage surges on a per unit basis for drives is less than that for switching surges, they occur on a continuing basis and therefore can accelerate aging of the motor insulation system. To reduce the imp... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Commutator fusing and brazing miniature motors to starter motors

    Publication Year: 1993, Page(s):591 - 595
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    A listing of the process of joining the magnet wire of an armature to its commutator without stripping the insulation is provided. Tang fusing and slotted type commutator fusing are discussed in detail, together with variations in fusing techniques and brazing starter armatures View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multi-pole magnetization of high resolution magnetic encoder

    Publication Year: 1993, Page(s):237 - 242
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    The construction of the magnetic encoder with a magnetoresistance sensor and a multi-pole magnetic drum is described. A rotatory magnetization system has been developed to magnetize the magnetic encoder. It is found that the sine-PWM magnetization is superior over the single-pulse magnetization when high resolution is needed View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Efficient magnet charging and conditioning

    Publication Year: 1993, Page(s):211 - 214
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The authors discuss energy storage/capacitor discharge instrumentation only, because this form of processes equipment can be upgraded to excessive energy levels much more easily than DC electromagnets and half-cycle units can. The data used are the result of four decades spent in designing, using and observing magnet processing systems. Most information has been gleaned from empirical studies and ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New UL classification for silicone transformer fluid

    Publication Year: 1993, Page(s):291 - 295
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    The protocol, apparatus, and results of high power testing recently performed on a silicone transformer fluid to gain the "Less Flammable per NEC 450-23" classification from Underwriters Laboratories are described. Also covered are the "use restrictions" associated with the listing, and the implications for both original equipment manufacturers (OEMs) and transformer specifiers. A review of Nation... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • NEMA magnet wire technical committee

    Publication Year: 1993, Page(s):133 - 136
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    Information on the activities of the NEMA Magnet Wire Technical Committee since the 1991 E/EIC Conference is provided. The accomplishments of the committee over the last two years are summarized, and data regarding various sub-committees and ad-hoc groups, which have contributed significantly in making the MW 1000 document an updated, established, magnet wire standard are given View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The hysteresisgraph as a quality control tool

    Publication Year: 1993, Page(s):221 - 227
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    The application of magnetic hysteresisgraphs in evaluating the performance of permanent magnets and soft magnetic materials is discussed. Topics include a summary of the important magnetic properties, magnetic measurement techniques used by hysteresisgraphs and examples of typical quality control applications View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improved mica groundwall insulation via grafted polymers

    Publication Year: 1993, Page(s):329 - 332
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    Exploratory work done in an attempt to improve the surface wetting characteristics of mica for high voltage insulation by "grafting" (i.e., chemically reacting) polymer structures to the mica surface is described. Two different experimental approaches to grafting are evaluated, i.e., by chemical reaction; and by plasma polymerization. Both methods give promising results. Evidence for actual polyme... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • PA46 NYLON The driving material for E-motors

    Publication Year: 1993, Page(s):53 - 56
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    After positioning 46 Nylon among other engineering plastics, specific components in electromotors and the use of 46 Nylon in those parts are discussed. Commercial examples are presented in detail relative to the exceptional properties of 46 Nylon, such as excellent heat resistance, high stiffness and low creep at elevated temperatures, good toughness and fatigue behavior, resistance to chemicals a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Process and product considerations of armatures by metal removal

    Publication Year: 1993, Page(s):627 - 630
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    Unbalance compensation by means of removing material from the rotor is very popular in the electric motor industry when considerations are made for high production requirements, relatively small balancing tolerances, and high speed motor applications. Steps have been taken by motor manufacturers to lower tolerances in the manufacturing process in order to improve product quality. Depending on the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robotic visual servoing in a flexible manufacturing workcell

    Publication Year: 1993, Page(s):413 - 417
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    The tracking and grasping of an object is carried out. The position of a robot, which has a camera mounted on its end-effector, is controlled using visual feedback. A static "look-and-move" control structure is implemented. The system includes a vision system, robot, and a workstation. The robot tracks an object on a moving conveyor belt, and then grasps the object while the conveyor belt is still... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Frequency characteristics of ferrite core inductors

    Publication Year: 1993, Page(s):369 - 372
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    An equivalent model of inductors at high frequencies is developed taking into account equivalent series resistance (ESR) and the parallel equivalent resonant capacitance. An expression representing the equivalent inductance (Ls) of an inductor is derived. It is shown that an inductor behaves like a capacitor beyond its resonant frequency. Various parameters such as inductance, capacitan... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Advanced methods of motor testing

    Publication Year: 1993, Page(s):287 - 290
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The increasing use of statistical process control requires new tasks of quality assurance. 100% final testing and diagnosis of the motors with regard to all electrical, mechanical and vibro-acoustic characteristics is mandatory for real process control to be applied. To achieve this task an intelligent motor test system is required. Essential parts of this system consist of the following: paramete... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Coil bobbin and encapsulated coil plastics for the 1990's

    Publication Year: 1993, Page(s):725 - 728
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1412 KB)

    Conductive thermoplastic resins are expected to play a major role in encapsulating transformers rated up to 1 kVA where operating temperature reductions are important. They also will find usage in power supplies and in small motors. The basic properties and performance characteristics of these new resins are reviewed and compared with the 6,6 nylon and thermoplastic polyesters used in most coil bo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New trends in stator testing

    Publication Year: 1993, Page(s):33 - 40
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    The purpose of stator testing, the history of stator testing and contemporary evolution in stator testing are discussed. Specific topics include fast set-up and recall, and test data versus go/no go View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Advantages of high voltage DC dielectric tests compared with AC tests

    Publication Year: 1993, Page(s):661 - 665
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Electricite de France (EDF) generators undergo dielectric tests at acceptance or after repair. One of these tests is an overvoltage test following the IEC 34-1 standard. EDF specifications leave manufacturers free to choose either AC or DC voltage to perform this test. Experience acquired in this field seems to confirm that tests under high voltage DC give more information than AC on the hidden we... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multi-tasking using magnetic design analysis software

    Publication Year: 1993, Page(s):65 - 69
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    The combination of magnetic design software analysis and multi-tasking through the use of Microsoft Windows is an aspect of transformer design. The uses of two magnetic design software programs and how both programs can be used in Windows to achieve optimum desing techniques are discussed View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New high voltage insulation with increased thermal conductivity

    Publication Year: 1993, Page(s):323 - 327
    Cited by:  Papers (5)  |  Patents (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    A new electrical insulating system for high voltage machines has been developed with a thermal conductivity twice as high as conventional systems. It is based on a newly developed mica/glass fabric tape with superior thermal conductivity and designed for processing with vacuum pressure impregnation (VPI) technology. The performance of this new insulating system has been demonstrated through extens... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The relative solvency and viscosity effects of cresylic acid isomers on high solids wire enamel

    Publication Year: 1993, Page(s):173 - 177
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    Cresylic are solvents for a broad range of wire enamel formulations. These are typically mixtures of cresylic isomers, primarily cresols, xylenols and ethylphenols. A survey of high solids polyester and polyester-imide formulations prepared using various cresylic acids is described. The variations in viscosity and solvency power are evaluated and compared View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Voltage endurance test facility for electric generator stator coils

    Publication Year: 1993, Page(s):557 - 561
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The development of new coil designs with the use of updated materials and/or processes requires voltage endurance testing as one of the tests to verify the new coil design. From established voltage endurance curves, a new insulation system can be evaluated against accepted coil designs. An expanded voltage endurance test lab has been developed which has the capabilities for testing both coil secti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.