Hawkins Electrical Guide, Questions, Answers and Illustrations, Vol. 3: A Progressive Course of Study for Engineers, Electricians, Students and Those

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Excerpt from Hawkins Electrical Guide, Questions, Answers and Illustrations, Vol. 3: A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to Acquire a Working Knowledge of Electricity and Its Applications, A Practical TreatiseConditions for satisfactory operation oil for com mutator attention to brushes Bissell brush gear two kinds of sparking commutator clamp causes of sparking bad adjustment of brushes rocking bad condition of brushes brushes making bad contact bad condition of commutator detection of untrue commu tator high segments ¿ats causes of ¿ats, remedy -method of repairing broken joint between commutator segment and lug segments loose or knocked in how to te-turn a commutator Bissell commutators - over load Oi dynamo method of repairing large hole burned in two adjacent bars of a commutator Operating dynamos with metal brushes indication Of excessive voltage method of smoothing commutator ith a stone - causes of excessive voltage loose connections, terminals, etc. Breaks in armature circuit sandpaper holder for com mutator-f short circuits, in armature circuits, in field breaks in field sandpaper block short circuits in commutator.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.