192 



ELEMENTS OF ELECTRICAL ENGINEERING. 



of feeders. The eight pairs of feeders in the diagram of connec- 

 tions in Fig. 1 20 are the short vertical lines beneath the sixteen 

 small semi-circles which represent the fuses. Two lamps and a 

 ground connection are provided on the panel shown in Fig. 1 20 

 for use as a ground detector as explained in a subsequent article. 

 87. Starting and stopping of generators which are operated in 

 parallel. The first generator that is put into operation is started 



Fig. 118. 



as explained in Art. 82. After the first generator, say G' ', Fig. 

 113, is in operation, the others are started one at a time, as fol- 

 lows : The driving engine is started and the generator, G f/ , Fig. 

 1 13, is slowly brought up to full speed. The shunt field switch, 

 Fig. 1 14, is then closed and the machine is brought up to a volt- 



