254 PRINCIPLES OF ELECTRICAL DESIGN 



as, for instance, the electric production of calcium carbide, 

 an alternator with poor regulation is desirable. In other words, 

 where a constant-power machine is needed, a powerful armature 

 reaction and magnetic leakage are useful; with a decrease in the 

 resistance of an electric furnace, the current will rise, but if this 

 increase of current causes a falling off in the pressure at the 

 generator terminals, the power consumed will not increase to any 

 appreciable extent. 



