The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 120
an a if volts andc. O J\ amperes are both plotted to the same scale, and a is theangle made by 0 P with the horizontal. THE SERIES DYNAMO. 105 Thus the external resistance is always represented bythe tangent of the angle POX for any point P on thecurve, when P O is the line drawn from P to the… … Fio. 34.- 30 40 Amperes. -Determination of the Critical Resistance from theCharacteristic Curve of a Series Dynamo. noting the point at which the line cuts the vertical through 1, 10, or 100 amperes, according to the scale, and dividing the voltage by the current for that point. Thus in Fig. 34, O…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
