Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 399
it cuts,and since the total voltage of the coil is the sum of thevoltages induced in its turns, it follows that the greater thenumber of turns, the greater must be the voltage of the coil,and vice versa. It is this fact which makes it possible to stepup and step down voltages. Thus, if coil S has… … Fig. 44G.—Schematic diagram of potential transformer. turns in it, but its voltage and that applied to P are in theratio of the turns in S and P. Thus, if P has 12,000 turns andS has 200, and 6,600 volts if applied to P, the voltage across Swill be 110 volts, because, volts S : volts P :: 200 :…
Electric machinery
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