52 THE DESIGN OF STATIC TRANSFORMERS 



winding as illustrated in Fig. 32 can be excellently arranged 

 as regards insulation, and lends itself well to the use of form 

 wound coils. It also affords maximum facility for the replace- 



Secondar 



FIG. 32. Sandwich winding. 



FIG. 33. Simple concentric winding 

 with subdivided primary. 



ment of damaged coils. On the other hand, unless carefully 

 studied out, it will have a low " space factor." 



In Fig. 33 is shown a simple concentric winding with sub- 

 divided primary. The arrangements shown in Figs. 32 and 33 



