ATKINSON'S MOTORS 



283 



respectively, while the exciting currents flow tlirougli the remainder 

 of the winding (BiB 8 and 6984). 



In the forms of compensated repulsion motor hitherto considered, 

 the stator could not be wound for a high voltage, as it is connected in 

 series with the armature. By a simple modification, however, 

 indicated in Fig. 175, the use of a high voltage stator winding 



Fio. 174. Latour's Arrangement of 

 Brushes aa applied to Compensated 

 Repulaion Motor. 



FIG. 175. Connections of Winter-Eichberg 

 Motor. 



becomes possible. This is the arrangement actually adopted in the 

 Winter-Eichberg motor. The exciting current, instead of being fed 

 directly into the armature, is supplied to it by the secondary of a 

 transformer whose primary is in series with the stator winding. The 

 secondary of this transformer is, as shown in the sketch, arranged to 

 have a variable number of turns. 



168. Atkinson's Repulsion Motors 



A form of repulsion motor, due to Atkinson, is represented in 

 Fig. 176. So far as the principle of its action is concerned, this motor 

 is identical with the simple form shown in Fig. 170, the only difference 

 being that whereas in the simple form the two components OA and 

 OB of the impressed field (Fig. 170) are produced by a single winding, 

 in Atkinson's motor they are produced by two independent windings 

 the transformer winding T W and the exciting winding (or field winding 

 proper) EW. The behaviour of tliis motor is in every way identical 

 with that of the simple type of Fig. 170 ; it, however, possesses the 



