Ques. Would this be the best arrangement?
Ans. No.
Ques. What system would be used in practice for maximum economy?
Ans. Three phase four wire.
Fig. 2,148.—Angle tower showing General Electric strain insulators. The tower being subject to great torsional strains is erected on a massive concrete foundation. The construction is similar to the standard tower but of heavier material, and having the same vertical dimensions but with bases 20 ft. square.
Ques. What are the objections to single phase generation and transmission?
Ans. It does not permit of the use of synchronous converters, self-starting synchronous motors, or induction motor starting under load. It is poorly adapted to general power distribution, hence it is open to grave objections of a commercial nature where there exists any possibility of selling power or in any way utilizing it for general converter and motor work.
Ques. For what service is it desirable?
Ans. For alternating current railway operation.