1、 IEC 60076-21 Edition 1.0 2011-12 INTERNATIONAL STANDARD Power transformers Part 21: Standard requirements, terminology, and test code for step-voltage regulators IEC 60076-21:2011(E) IEEE Std. C57.15-2009 IEEE Std C57.15 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEEE All rights reserve
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8、 rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60076-21/IEEE Std C57.15 has been processed through IEC technical committee 14: Power transformers. The text of this standard is based on the following documents: IEEE Std FDIS Report
9、 on voting C57.15-2009 14/688/FDIS 14/697/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. IEC 60076-21:2011(E) iv IEEE Std C57.15-2009 Published by the IEC under licence from IEEE. 2009 IEEE. All rights reserved.
10、 A list of all the parts in the IEC 60076 series, published under the general title Power transformers can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.i
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30、E shall not be responsible for identifying patents for which a license may be required by an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. IEC 60076-21:2011(E) vi IEEE Std C57.15-2009 Published by the IEC under licence
31、from IEEE. 2009 IEEE. All rights reserved. vii IEC 60076-21:2011(E) IEEE Std C57.15-2009 Published by the IEC under licence from IEEE. 2009 IEEE. All rights reserved. IEEE Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators Sponsor Transformers Committee of the IEEE Power &
32、 Energy Society Approved 11 September 2009 IEEE-SA Standards Board IEC 60076-21:2011(E) viii IEEE Std C57.15-2009 Published by the IEC under licence from IEEE. 2009 IEEE. All rights reserved. Abstract: Description of design types, tables of 50 Hz and 60 Hz ratings, supplementary ratings, constructio
33、n, and available accessories are provided. Methods for performing routine and design tests applicable to liquid-immersed single and three-phase step-voltage regulators are described. Winding resistance measurements, polarity tests, insulation power factor and resistance tests, ratio tests, no load l
34、oss and excitation current measurements, impedance and load loss measurements, dielectric tests, temperature tests, routine and design impulse tests, short-circuit tests, control tests, calculated data, and certified test data are covered. Keywords: control, design tests, position indicator, routine tests, series transformer, tap changer, Type A, Type B, voltage regulator National Electrical Safety Code and NESC are both registered trademarks and service marks of the Institute of Electrical and Electronics Engineers, Inc.
