Electric Railway Troubles and How to Find Them

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Excerpt from Electric Railway Troubles and How to Find Them: A Comprehensive Treatise on Motors, Motor Operation, Motor Repairs, Car Break-Downs, Control Systems, Repairing of Control, Air Brakes, Air Brake Troubles, and Electric Railway Operation GenerallyResistance cores also termed rheostats or diverter coils consist of long strips of iron ribbon and are constructed in two forms - the panel form, insulated with asbestos between each layer, the other form is cylindrical, and the layers of the coil are separated by mica and asbestos insulation. Both mica and asbestos, being capable of standing high temperature, are valuable insulating ma terials, preventing the coils from being short-circuited and securing full resistance. When resistance fails or lessens, the current, instead of following its proper path, is carried to ground through a shorter course.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.