BS-5800-1979 IEC-60599-1978.pdf
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1、BRITISH STANDARD BS 5800:1979 IEC 599:1978 Guide for The interpretation of the analysis of gases in transformers and other oil-filled electrical equipment in service UDC 621.315.615.2:665.767.035:621.317.333.41:543.27 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:52:01 GMT+00:00 2006, Un
2、controlled Copy, (c) BSI BS 5800:1979 This British Standard, having been prepared under the direction of the General Electrotechnical Engineering Standards Committee, was published under the authority of the Executive Board and comes into effect on 31 October 1979 BSI 04-1999 The following BSI refer
3、ences relate to the work on this standard: Committee reference GEL/115 Draft for comment 77/30923 DC ISBN 0 580 10979 8 Cooperating organizations The General Electrotechnical Engineering Standards Committee, under whose direction this British Standard was prepared, consists of representatives from t
4、he following Government departments and scientific and industrial organizations: British Approvals Service for Electric Cables Ltd. Associated Offices Technical Commitee British Electrical and Allied Manufacturers Association (BEAMA) British Radio Equipment Manufacturers Association British Steel Co
5、rporation Department of Energy (Electricity) Electric Cable Makers Confederation* Electrical Contractors Association Electrical Contractors Association of Scotland Electrical Research Association* Electricity Supply Industry in England and Wales* Electronic Components Industry Federation Electronic
6、Engineering Association Engineering Equipment Users Association Health and Safety Executive Home Office Institution of Electrical Engineers Ministry of Defence National Coal Board Oil Companies Materials Association Post Office The organizations marked with an asterisk in the above list, together wi
7、th the following, were directly represented on the committee entrusted with the preparation of this British Standard: British Railways Board British Lubricants Federation Limited Electric Cable Makers Confederation Supertension Cables Group Institute of Petroleum The Transmission and Distribution As
8、sociation (BEAMA) Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:52:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5800:1979 BSI 04-1999i Contents Page Cooperating organizationsInside front cover National forewordii 1Intr
9、oduction1 2Scope1 3Recommended basic method for interpreting gas analysis1 3.1Gases generated from oil1 3.2Levels at which dissolved gases are significant2 3.3Diagnosis of faults from relative concentrations of individual gases dissolved in oil2 4Degradation of cellulosic insulation3 4.1Examining CO
10、2 and CO concentrations found dissolved in oil3 4.2Examining CO2 and CO concentrations in free gases found in the gas-collecting relay3 5Application of diagnostic method to free gases in a gas-collecting relay3 5.1Calculation of dissolved gas concentrations equivalent to free gas concentrations6 App
11、endix A Information obtained from rates of gas production7 Table I Code for examining analysis of gas dissolved in mineral oil4 Table II Flow chart5 Table III6 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:52:01 GMT+00:00 2006, Uncontrolled Copy,
12、 (c) BSI BS 5800:1979 ii BSI 04-1999 National foreword This British Standard has been prepared under the direction of the General Electrotechnical Engineering Standards Committee. It is identical with IEC 599 “Interpretation of the analysis of gases in transformers and other oil-filled electrical eq
13、uipment in service” published by the International Electrotechnical Commission (IEC). Terminology and conventions. The text of the international standard has been approved as suitable for publication, without deviation, as a British Standard. Some terminology and certain conventions are not identica
14、l with those used in British Standards. NOTETextual error. In the titles of 4.1 and 4.2 the symbols for carbon dioxide and carbon monoxide should be read as if printed in upright type. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standar
15、ds are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International standardCorresponding British Standard IEC 567:1977BS 5574:1978 Guide for the sampling of gases and of oil from oil-filled el
16、ectrical equipment and for the analysis of free dissolved gases (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendme
17、nts incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:52:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5800:1979 BSI 04-19991 1 Introduction This standard is the result of a survey carried out jointly b
18、y the IEC and the CIGR in order to compare available methods of interpretation of gas in oil analysis. One hundred examples were collected of faulty transformers for which the actual fault had been identified by internal examination and the gas dissolved in oil and sometimes the Buchholz gas, had be
19、en analyzed. The diagnostic methods given in this standard were applied. All these methods of interpretation appear to be capable of discriminating reliably between electrical faults and thermal faults. Exceptions were rare and they perhaps reflect occasional misjudgement rather than the inadequacy
20、of the methods. 2 Scope Electrical discharges or thermal stresses in the oil or solid insulation, for example, paper pressboard etc, of an oil-filled transformer cause degradation of these materials with the formation of gases of various types. To some extent these gases dissolve in the oil, but usi
21、ng techniques described in IEC Publication 567, Guide for the Sampling of Gases and of Oil from Oil-filled Electrical Equipment and for the Analysis of Free and Dissolved Gases, they may be removed from a sample of the oil and analyzed quantitatively by gas chromatography. This standard describes ho
22、w the concentrations of dissolved gases or of free gases may be interpreted to diagnose the condition of a transformer in service and suggest future action. The methods of interpretation have been developed for power transformers wound with copper conductors, insulated with cellulosic paper or press
23、board-based solid insulation and filled with hydrocarbon mineral oil, in service on power networks; until further experience has been gained, the methods should be applied with caution in relation to other materials. The methods may also apply in principle to instrument transformers, oil-filled cabl
24、es, switchgear, etc., but insufficient experience is available to formulate suitable interpretation and limits. In any case, the indication obtained must be viewed only as a guide; any resulting action must be undertaken with proper engineering judgement. 3 Recommended basic method for interpreting
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