Transacticns Society Naval Architects and Marine Engineers, Vol. zg, IQ2I. 



Plate 13 



To illustrate paper on "Electric Propulsion of Ships,' 

 by W. E. Thau, Esq., Member. 



Ijceltar Set 



QtiMzfl 



Tupblns 



Hi 



Reversors 

 Baok I 



.-cnl 



Ahead I 



Figure 1. DlagrantmatlQ Scheme of Connections 



Vound Secondary Induction Motor Drive 



f 



Secondary 

 III l|l Control 



Wound 

 Secon- 

 dary 

 Induction 



Motor 



i 



Control BoBpd 



Instrument s 



000 



Qauges 



oCo 



Oper- 

 ating 



I Intarloolclng BedTl 



Ezolter 3«t 



DoM=^ 



TiirMno 



Tzr 



HD- 



Oener- 

 atop 



m 



Re verse re 

 Baok 



-C 



a 



uad I 



4 ■ ■ 



Figure 2, Dlagramnatie Sotiens of Connsstlons. 

 Squirrel Cage Induotlon Motor Drive 



Squirrel 



Cage 

 Induotlon 



Motor 



i 



Control Board 



000 



Instrumentfl 



000 



Qauges 



000 



Oper- 

 ating 



I Interloelclng 3ed | 



