. Electrical world. he bore of the stator and along thephase of the cylindrical peripherj of the rotor, since between thetops of the iron teeth of each single system over the openings ofthe slots there occurs a leakage of magnetic lines. These strayfluxes along the peripheral surfaces will bear to the mean totalflux the same proportion as the magnetic reluctance of the pathfollowed by the mean total flux bears to the magnetic reluctanceinterposed in the path of the stray magnetic flux between the topsof the teeth. The quotient of the stray flux by the main flux iscalled the peripheral dispersi
. Electrical world. he bore of the stator and along thephase of the cylindrical peripherj of the rotor, since between thetops of the iron teeth of each single system over the openings ofthe slots there occurs a leakage of magnetic lines. These strayfluxes along the peripheral surfaces will bear to the mean totalflux the same proportion as the magnetic reluctance of the pathfollowed by the mean total flux bears to the magnetic reluctanceinterposed in the path of the stray magnetic flux between the topsof the teeth. The quotient of the stray flux by the main flux iscalled the peripheral dispersion coefficient. The second kind ofmagnetic leakage, called flank dispersion, exists outside the ironcore. Those parts of the winding which constitute the end con-nections between conductors in the slots, and which project ascurved winding bunches or bends at the flanks of the stator androtor cylinders, give rise to a magnetic flux outside the iron corebodies. In the main this stray flux is equal to the magnetic flux. culating these three coefficients and by adding them he gets thetotal dispersion coefficient. He thinks that this coefficient maywell form the basis upon which to design induction motors asupon it depends the power factor.—Lond. Elec. Rev., January 29.—An illustrated reprint in full of the paper begins in Lond. Elec,January 22. Alternators Giving a Pure Sinusoidal —P.\terson.—A fullyillustrated article in which it is said that the Oerlikon Companybuilt the generators for the Lauffen transmission in 1891 with theirpole pieces set at an angle to the axis of the pole wheel, with theresult that the wave of electromotive force was very nearly a sinecurve. The same firm is now building generators on this principle,and Fig. 3 shows the special pole construction. The iron is laminatedthroughout, the stamping being arranged in such a way that thepolar edge makes an angle with the axis of the wheel. The dis-tribution of flux with relation to the stator conduct
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
