✍ Scribed by R.H. Oppermann
No coin nor oath required. For personal study only.
Practical electric power engineering requires continual consolidation of its position by crystallization of methods into standards, new and better concepts of properties and characteristics, as well as new applications of machinery based on advances in the art generally. Current literature provides definite evidence of progress in these lines. When the trial period is past the position of electric power engineering is enhanced and the methods and thought adapted to standard practice. It is at this point that a revision is necessary in texts on the subject.
The book at hand is in its second edition, the first having been published in I936. The authors believe that sufficient progress has been made to require the revision of many parts of the text to bring it into line with present practice. The treatment starts out with synchronous generators. At this very beginning is an illustration of the changes due to the use of new standards. Here there are incorporated the recent methods of calculating alternator regulation and the new concepts of direct and quadrature axis synchronous reactance. This, of course, is reflected later under the heading of synchronous motors also. The other subjects, in order, are transformers which includes parallel operation, polyphase induction motors, single phase induction motors, synchronous motors, alternators in parallel, synchronous converters, mercury vapor rectifiers, series motors, and repulsion motors. Each of these subjects is treated in somewhat of the orderof (I) construction of the machine, (2) discussion of operating characteristics, (3) calculation of operating characteristics from tests, (4) discussions and analyses of various related phenomena.
Undoubtedly this rather standard method has its merits, one of which is the ordered knowledge resulting from following it.
Of necessity there are a great many drawings, illustrations, and curves throughout the work. The treatment may be classed as semi-rigorous--not brief enough or mathematically detailed to be rigorous, yet avoiding waste of time and space.
The method of working out examples is used to a greatextent and, it is believed, without tiresome pursuit. The back of the book contains problems for exercise on the material in each chapter. They are carefully drawn to bring out the most pertinent knowledge. There are answers given in many cases, sufficient to give assurance that the correct procedure has been learned. This is a good text for practical application. It fits into the classroom well. It can be used to advantage for home study for those who have had groundwork in alternating currents. It is especially valuable to practicing engineers for refresher work and reference purposes. R. H. OPP1ERMANN.
📜 SIMILAR VOLUMES