24 CONSTANT-VOLTAGE TRANSMISSION 



plicate transmission lines have generally been built, thus 

 adding greatly to the capital investment for the power 

 system. The possibility of avoiding this expense by 

 means of an automatic regulator in the generating sta- 

 tion which would be capable of compensating for an ex- 

 tremely large line drop is discussed in Chapter XI, where 

 it is shown that, even if such a regulator were produced, 

 the resulting low line efficiency and low generator power- 

 factor would make it inadvisable. Practical proof, how- 

 ever, has been given that it is commercially feasible to 

 increase by a large proportion the power capacity of 

 transmission lines by overcoming voltage variation by 

 means of synchronous motors. 



