The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 275
rrent supplied froman external source. The leakage increases at heavyloads, on account of the magnetic reactions of the arma-ture, especially when the brushes are given a considerableangle of forward lead. The armature should be heldstationary, or it will rotate on making the field. It is extremely… … Fig. S3.—Method of Measuring Voltage Rodnd the Commutator. result of such a test. If carried out carefully withsufficient precautions to maintain miiform conditionsduring the experiment, the test may safely be taken asgiving the relative number of lines in different parts of MISCELLANEOUS TESTS.…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
