ELECTRICAL INSTALLATION 



MANY novel and serious problems were pre- 

 xcnted by the plans devised for the electric 

 lighting and the furnishing of power for 

 the Singer Building, but these were all satisfactorily 

 solved, and each electric system installed is in every 

 re.speet complete and adequate to meet every demand 

 upon it. 



The electric generators and motors used in the 

 Singer Building were made by the 

 Diehl Manufacturing Company of 

 Elizabeth port, N. J., and were se- 

 lected because of confidence in their 

 reliability and economy, as shown by their successful 

 operation in many varieties of service. 



ELECTRIC 



GENERATING 



APPARATUS 



The dynamos are compound wound multipolar 

 slow-speed engine type generators, four machine^ 

 having a capacity of 300 K.W. each and one of 200 

 K.W., all supplying current at 250 volts at 1.50 

 R.I*. M. They furnish the entire supply of electric 

 current used throughout the building for both lighting 

 and power. 



These generators are of massive design, with low 

 heat limits due to low current density in windings, 

 commutator and brushes and to excellent ventilation 

 afforded by paths for air currents through all of the 

 windings and interior parts of the machines. They 

 are non-sparking at all loads and are capable of 

 standing heavy overloads for long periods of time. 



I 100 J 



