IEEE Std C57.12.90-1999 IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers.pdf
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1、 The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 1999 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 30 December 1999. Printed in the United States of America. Print: ISBN 0-7381-1789-7 S
2、H94778 PDF: ISBN 0-7381-1790-0 SS94778 No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. IEEE Std C57.12.90-1999 (Revision of IEEE C57.12.90-1993) IEEE Standard Test Code for Liquid-Immers
3、ed Distribution, Power, and Regulating Transformers Sponsor Transformers Committee of the IEEE Power Engineering Society Approved 26 June 1999 IEEE Standards Board Abstract: Methods for performing tests specified in IEEE Std C57.12.00-1993 and other standards applicable to liquid-immersed distributi
4、on, power, and regulating transformers are described. Instru- ment transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, grounding transformers, and mine transformers are excluded. This standard covers resistance measur
5、ements, polarity and phase-relation tests, ratio tests, no- load-loss and excitation current measurements, impedance and load loss measurements, dielectric tests, temperature tests, short-circuit tests, audible sound level measurements, calculated data, and certified test data. Keywords: tests, tran
6、sformers, transformer tests IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinat- ing Committees of the IEEE Standards Association (IEEE-SA) Standards Board. Members of the committees serve voluntarily and without compensation. They are not necessarily members
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16、otocopy portions of any individual standard for educational class- room use can also be obtained through the Copyright Clearance Center. Note: Attention is called to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of thi
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18、hose patents that are brought to its attention. Copyright 1999 IEEE. All rights reserved. iii Introduction (This introduction is not a part of IEEE Std C57.12.90-1999, IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers.) This document is a voluntary consensu
19、s standard. Its use may become mandatory only when required by a duly constituted legal authority or when specifi ed in a contractual relationship. To meet specialized needs and to allow innovation, specifi c changes are permissible when mutually determined by the user and pro- ducer, provided that
20、such changes do not violate existing laws and are considered technically adequate for the function intended. When this standard is used on a mandatory basis, the word shall indicates mandatory requirements, and the words should and may refer to matters that are recommended or permissive, but not man
21、datory. The word must has been removed from this revision and replaced with shall to conform with the IEEE Standards Style Manual . This revision of IEEE Std C57.12.90 separates the Test Code, Part I of Std C57.12.90-1993, from Part II of IEEE Std C57.12.90-1993, IEEE Guide for Short-Circuit Testing
22、 of Distribution and Power Transformers. Part II of C57.12.90-1993 will become a new IEEE Transformers Committee (C57) document separate from the Test Code. Many of the changes incorporated into this revision either are editorial, or have been made to make the doc- uments more closely conform the IE
23、EE Standards Style Manual . Some changes have been made to correct errors in previous revisions. Periods have been deleted from the endings of some subheadings, and the words delta and wye, where possi- ble, are now spelled out to replace symbols in text. The text in Clauses 14 has been rearranged,
24、though much of the wording remains the same. Defi nitions listed in Clause 13 were removed since they duplicate information in Clause 3. Table 11 through Table 14 have been relabeled as Figure 31 through Figure 34. Some of the changes that are of major importance to the revision of this standard are
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