British Standard Specification For Instrument Transformers Vol 81 Classic Reprint

Author : British Engineering Standar Association
Publisher :
ISBN 13 : 9781330511558
Total Pages : 22 pages
Book Rating : 4.5/5 (115 download)

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Download or read book British Standard Specification for Instrument Transformers, Vol. 81 (Classic Reprint) written by British Engineering Standar Association and published by . This book was released on 2015-06-30 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from British Standard Specification for Instrument Transformers, Vol. 81 Note. - The Association desires to call attention to the fact that this Specification is intended to include the technical provisions necessary for the supply of the article herein referred to, but does not purport to comprise all the necessary provisions of a Contract. BRITISH STANDARD SPECIFICATION FOR INSTRUMENT TRANSFORMERS. Definitions. Instrument Transformer. 1. An Instrument Transformer is a transformer designed for use with indicating, integrating and graphically recording instruments, relays and other similar apparatus or any of them. Current Transformer. 2. A Current Transformer is an instrument transformer designed for series connection of its primary winding in the circuit the current in which is to be measured or controlled. The ratio of transformation is a ratio of currents. Ammeter Transformer. 3. An Ammeter Transformer is a current transformer designed for use in connection with a device in which the phase angle between the primary and secondary currents is unimportant. Potential Transformer. 4. A Potential Transformer is an instrument transformer designed for connection of its primary winding across the circuit the pressure of which is to be measured or controlled. The ratio of transformation is a ratio of potential differences. Rated Output of an Instrument Transformer. 5. The Rated Output is the output in volt-amperes marked on the name plate. Rated Primary Current of an Instrument Transformer. 6. The Rated Primary Current is the value of the primary current marked on the name plate. Rated Secondary Current of an Instrument Transformer. 7. The Rated Secondary Current is the value of the secondary current marked on the name plate. 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.