Electric Motive Power the Transmission Distribution of Electric Power By Cont
Electric Motive Power the Transmission Distribution of Electric Power By Cont
Albion Thomas Snell
The book Electric Motive Power the Transmission Distribution of Electric Power By Cont was written by author Albion Thomas Snell Here you can read free online of Electric Motive Power the Transmission Distribution of Electric Power By Cont book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Electric Motive Power the Transmission Distribution of Electric Power By Cont a good or bad book?
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39. ADVANTAGES AND DISADVANTAGES OF ALTERNATE CURRENTS. THE special points in favour of the alternate-current systems may be summarised as follows : (a) High-pressure machines are permissible, since the currents are not commutated, and, therefore, sparking diffi- culties are entirely obviated. (b) Power is readily divided into units of any size and at any pressure by suitable transformers either step-up or step- down. (c) The regulation of pressure over a large area of supply is facilitated by ...parallel high-pressure primary circuits. (d) The power in any of the branch circuits can be regu- lated by choking coils without serious loss thus the pressure 212 ELECTRIC MOTIVE POWER. of a feeder, or the light of a single lamp, can be graduated without using a wasteful resistance. (e) Alternate currents are generally more easily handled than continuous currents, and the sparks at breaking circuit are less destructive. (/) Synchronous motors of large sizes have a high all-round efficiency, and necessarily run at constant speed.
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