Excerpt from The Design, Construction and Test of a Rectifier The electric light has now become quite popular, nearly every city of a thousand inhabitants or so having its electric light plant. At the time of the greatest activity in this line it was the fad to install indiscriminately single phase apparatus producing an alternating current having a frequency of from 100 to 140 cycles per second. One of the objections to this system was the fact that elec tric fans and small motors could not be profitably operated, for vita a transformer system connected to the mains for 24 hours, the core losses in the transformers might amount to as much as the revenue from the current sold for these small powers. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.