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1、 The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2000 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 13 December 2000. Printed in the United States of America. Print: ISBN 0-7381-2679-9 S
2、H94893 PDF: ISBN 0-7381-2680-2 SS94893 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 C57.127-2000 IEEE Trial-Use Guide for the Detection of Acoustic Emissions from Partial Dis
3、charges in Oil-Immersed Power Transformers Sponsor Transformer Committee of the IEEE Power Engineering Society Approved 21 September 2000 IEEE-SA Standards Board Abstract: This trial-use guide applies to the detection of partial discharges in power transformers. It takes advantage of the acoustic em
4、issions produced by partial discharges. Although primarily intended for field use, it can also be used in the factory environment, if required. Keywords: acoustic emission (AE), attenuation, burst, gas-in-oil analysis, low-amplitude discharges, partial discharge (PD), power transformers Copyright Th
5、e Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 01:03:29 MDTNo reproduction or networking permitted without license from IHS -,-,- IEEE Standards documents are develop
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18、e required by an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=OConnor
19、, Maurice Not for Resale, 04/29/2007 01:03:29 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright 2000 IEEE. All rights reserved. iii Introduction (This introduction is not part of IEEE Std C57.127-2000, IEEE Trial-Use Guide for the Detection of Acoustic Emissions fro
20、m Partial Discharges in Oil-Immersed Power Transformers.) Participants At the time this trial-use guide was completed, the Working Group on Partial Discharge Tests in Transformers had the following membership: John W. Harley, Chair Publication of this trial-use guide for comment and criticism has be
21、en approved by the Institute of Electrical and Electronics Engineers. Trial-use guides are effective for 24 months from the date of publication. Comments for revision will be accepted for 18 months after publication. Suggestions for revision should be directed to the Secretary, IEEE-SA Standards Boa
22、rd, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, and should be received no later than 13 June 2002. It is expected that following the 24-month period, this trial-use guide, revised as necessary, shall be submitted to the IEEE-SA Standards Board for approval as a full-use guide. Donald Ay
23、ers Ron L. Barker Tord Bengtsson William Carter Roy Colquitt Ed Cromer John Crouse Ron Dallbert Gordon Denny Fred E. Elliott Don Fallon Norman Field Steve Jordan Emil Kowal Mike Lau Raymond Lortie Richard Lowe Andre Lux Jack McGill Mark D. Perkins Dirk Russwurm Ewald Schweiger Hemchandra Shertukde J
24、ames Smith Subhash C. Tuli Barry Ward Eduardo Garcia Wild Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 01:03:29 MDTNo reproduction or networking permitt
25、ed without license from IHS -,-,- iv Copyright 2000 IEEE. All rights reserved. The following members of the balloting committee voted on this trial-use guide: Paul Alex Dennis J. Allan George Allen Jacques Aubin Donald E. Ballard Ron L. Barker Mike Barnes A. Bartek William H. Bartley Martin Baur Edw
26、ard A. Bertolini Enrique Betancourt Wallace B. Binder Alain Bolliger William Carter Donald J. Cash James F. Christensen Don Chu Robert C. Degeneff Alfonso M. Delgado Dieter Dohnal Randall L. Dotson B. H. Dunlap, IV John A. Ebert Fred E. Elliott Gary R. Engmann Reto H. Fausch Pierre T. Feghali Joe Fo
27、ldi Michael A. Franchek Charles G. Garner Harry D. Gianakouros Donald A. Gillies Richard D. Graham Robert L. Grunert Ernst Hanique N. Wayne Hansen John W. Harley Tommy W. Hayes R. R. Hayes Keith R. Highton Peter J. Hoefl er Philip J. Hopkinson Richard A. Huber Virendra Jhonsa Charles W. Johnson Anth
28、ony J. Jonnatti Lars-Erik Juhlin C. J. Kalra Egon Koenig Barin Kumar John G. Lackey Thomas Lundquist Joe D. MacDonald William A. Maguire Charles Mandeville John W. Matthews Terence McComb Nigel P. McQuin Sam Michael R. E. Minkwitz, Sr. Jack Moffat Daleep C. Mohla Harold R. Moore Daniel H. Mulkey R.
29、J. Musil Vladimir G. Neumann Russell C. Nordman E. T. Norton B. K. Patel Wesley F. Patterson Jesse M. Patton David Payne Paulette A. Payne Mark D. Perkins Linden W. Pierce R. Leon Plaster Donald W. Platts G. Preininger Tom A. Prevost Jeewan L. Puri J. C. Riboud Peter G. Risse John R. Rossetti Hazair
30、in Samaulah Vallamkonda Sankar Subhas Sarkar Leo J. Savio Rick Sawyer William E. Saxon Pat Scully Dilipkumar Shah Devki Sharma Mark Siehling Hyeong Jin Sim Tarkeshwar Singh Kenneth R. Skinger Stephen D. Smith Steven L. Snyder Peter G. Stewart Ron W. Stoner Malcolm V. Thaden James A.Thompson Thomas P
31、. Traub Subhash C. Tuli Georges H. Vaillancourt John Vandermaar Robert A. Veitch William G. Wimmer F. N. Young Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2
32、007 01:03:29 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright 2000 IEEE. All rights reserved. v When the IEEE-SA Standards Board approved this trial-use guide on 21 September 2000, it had the following membership: Donald N. Heirman, Chair James T. Carlo, Vice Chair
33、 Judith Gorman, Secretary *Member Emeritus Also included is the following nonvoting IEEE-SA Standards Board liaison: Alan Cookson, NIST Representative Donald R. Volzka, TAB Representative Don Messina IEEE Standards Project Editor Satish K. Aggarwal Mark D. Bowman Gary R. Engmann Harold E. Epstein H.
34、 Landis Floyd Jay Forster* Howard M. Frazier Ruben D. Garzon James H. Gurney Richard J. Holleman Lowell G. Johnson Robert J. Kennelly Joseph L. Koepfi nger* Peter H. Lips L. Bruce McClung Daleep C. Mohla James W. Moore Robert F. Munzner Ronald C. Petersen Gerald H. Peterson John B. Posey Gary S. Rob
35、inson Akio Tojo Donald W. Zipse Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 01:03:29 MDTNo reproduction or networking permitted without license from IH
36、S -,-,- vi Copyright 2000 IEEE. All rights reserved. Contents 1.Overview 1 1.1 Scope 1 1.2 Purpose. 1 1.3 Safety warning. 1 2.Definitions 2 3.Instrumentation 3 3.1 Sensing transducer. 4 3.2 Preamplifier 4 3.3 Filter. 4 3.4 Power amplifier 5 3.5 Counter. 5 3.6 Display. 5 3.7 Power supply 5 4.Test pro
37、cedure 5 4.1 Introduction 5 4.2 Background 6 4.3 Instrument adjustment 6 4.4 Test procedure 6 5.Interpretation of results 7 5.1 Amplitude of individual discharges. 7 5.2 Effect of attenuation. 7 5.3 Characterization of signals. 8 5.4 Partial discharge activity levels . 9 5.5 Integrating AE results w
38、ith data from oil analysis. 10 Annex A(informative) Bibliography 11 Annex B(informative) Instrumentation calibration. 14 Annex C(informative) Calibration of transducer and pre-amplifier 16 Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELi
39、censee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 01:03:29 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright 2000 IEEE. All rights reserved. 1 IEEE Trial-Use Guide for the Detection of Acoustic Emissions from Partial Discharges in Oil
40、-Immersed Power Transformers 1. Overview 1.1 Scope This trial-use guide is applicable to the detection of partial discharges (PDs) in power transformers. It utilizes the acoustic emissions (AEs) produced by PDs. Although primarily intended for fi eld use, this guide can also be used in the factory e
41、nvironment, if required. IEEE Std C57.127-2000 is not intended to provide a precise method for defi ning the geometric location of the source of PDs, although it can sometimes provide a rough approximation of it. 1.2 Purpose This trial-use guide organizes AE detection-measurement methods so that res
42、ults may be compared by persons knowledgeable in this fi eld, such as utility engineers, consultants, academics, and manufacturers. 1.3 Safety warnings The safety warnings in this subclause and in 4.1 apply only to work done on transformers installed in the fi eld, not to factory testing. Refer to f
43、actory test codes for safety warnings for these situations. PD location should only be attempted by those technicians and engineers trained in working high-voltage transformers. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS
44、Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 01:03:29 MDTNo reproduction or networking permitted without license from IHS -,-,- IEEE Std C57.127-2000IEEE TRIAL-USE GUIDE FOR THE DETECTION OF ACOUSTIC 2 Copyright 2000 IEEE. All rights reserved. 2. Defi nitions For the purpos
45、es of this trial-use guide, the following terms and defi nitions apply. The Authoritative Dictionary of IEEE Standards Terms B21 1 should be referenced for terms not defi ned in this clause. 2.1 acoustic couplant: A material introduced into the interface between the sensor and the transformer tank t
46、o facilitate the transfer of the mechanical signal from the steel wall to the sensing crystal. All liquids and many gels meet this criterion. Couplants produced for ultrasonic, nondestructive testing purposes are generally suitable; however, gelled glycerin or silicone grease are particularly effi c
47、ient and are recommended. 2.2 acoustic emission (AE) burst rate: The number of groups of acoustic emission oscillations in a time interval, often 1 s, or a number of cycles, depending on the instrument being used. For example, there are nine bursts shown in the time interval, which is not defi ned,
48、in Figure 1. The groups of acoustic emission oscillations are also called pulses. 2.3 acoustic emission (AE) oscillation: An oscillation produced by a resonant, piezo-electric crystal when perturbed by a shock wave, which could be caused by a partial discharge. 1 The numbers in brackets correspond to those of the bibliography in Annex A. WARNINGS 1)The transformer tank must be connected to a low resistance ground to limit the extremely high voltages being induced into the ground circuit and the tank if a high voltage to ground failure occurs. The personnel risk is very high if the tr