. An Oscillographic investigation of current and EMF- waves of telephone magneto generators . y this arrangement the armature of the motor was driven atexactly half the speed of the generator,This produced astationary wave consisting of only one cycle, A complete detailed drawing of the apparatus used isshown in figure # 10 and #11. The magneto generator was placed on an adjustalole platform,and directly coupled to the main driving shaft as shown infigure # l/4 , motor was used for driving thegenerator the speed of which was kept constant at onethousand speed was regulated b
. An Oscillographic investigation of current and EMF- waves of telephone magneto generators . y this arrangement the armature of the motor was driven atexactly half the speed of the generator,This produced astationary wave consisting of only one cycle, A complete detailed drawing of the apparatus used isshown in figure # 10 and #11. The magneto generator was placed on an adjustalole platform,and directly coupled to the main driving shaft as shown infigure # l/4 , motor was used for driving thegenerator the speed of which was kept constant at onethousand speed was regulated by meaiis of rheostatsin the arjiiature and field circuits of the waveswere taten for various loads as stated # 12shows the switching arrangement used for placing the variousloads in circuit. On account of the odd shape of the iron of the generatorarqiature, the permeability of the magnetic circuit is notliniform throughout a complete current istherefore distorted and consists of a combination of a sinewave with some of its higher
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