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IEE Proceedings B - Electric Power Applications

Issue 5 • Date September 1987

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Displaying Results 1 - 5 of 5
  • The physics of fusion welding. Part 1: The electric arc in welding

    Publication Year: 1987, Page(s):233 - 254
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2901 KB)

    The electrical characteristics of the arc as used in welding technology are considered, giving some attention to problems of arc reignition and stability, and to the means of assessing the suitability of power sources for welding operations. The behaviour of thermionic and nonthermionic cathodes is reviewed and recent developments in the investigation of nonthermionic cathodes are described. Work ... View full abstract»

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  • Self-excited induction generator/force-commutated rectifier system operating as a DC power supply

    Publication Year: 1987, Page(s):255 - 260
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (616 KB)

    The paper presents a new DC energy generation system based on a 3-phase self-excited induction generator coupled to a force-commutated rectifier. This rectifier is switched in such a way that its input current fundamental component is advanced with respect to the corresponding voltage, producing a capacitive characteristic on its terminals. This characteristic helps the self-excitation and improve... View full abstract»

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  • Characteristics of 2-winding capacitor motors with tapped auxiliary windings

    Publication Year: 1987, Page(s):261 - 268
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (729 KB)

    2-winding capacitor motors with tapped auxiliary windings have been widely used in Japan to drive shaft-mounted fans. Principal performance equations are derived by applying the symmetrical components method to an equivalent circuit. The optimum tap position and symmetrical conditions, effects of equivalent circuit parameters on the alternating torque, steady-state torque speed curve, and the effi... View full abstract»

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  • Integral formulation for the calculation of the field and the forces in a system of conducting cylindrical shells: a general approach

    Publication Year: 1987, Page(s):269 - 276
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (621 KB)

    The problem of calculating current densities in a system of cylindrical shells is examined. The geometrical configuration of the system consists of a circular cylindrical shell enclosing a number of hollow circular cylindrical conductors placed in arbitrary positions. The calculation of the current densities is based on the solution of a system of integral equations. For the numerical solution of ... View full abstract»

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  • Winding current in a switched reluctance motor

    Publication Year: 1987, Page(s):277 - 283
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (753 KB)

    Winding current waveforms for a switched reluctance motor appear to be irregular, especially with a stationary rotor and at low speeds. However, an analysis of current data shows that simple mathematical models describe the relationship between the rate of rise of current and rotor position. These models are useful in the design of power electronic circuits and controllers. View full abstract»

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