BS 4727-2 Group 04-1991 Glossary of electrotechnical power telecommunication electronics lighting and colour terms - Terms particular to power engineering - Power transformers and .pdf
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1、BSI BSx4727:PTZ: GROUP*4 93 Lb24bb9 0229243 7 I BRITISH STANDARD I I Glossary of Electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 2. ikrms particular to power engineering Group 04. Power transformers and reactors BS 4727 : Part 2 : Group 04 : 1991 IEC SO(421) :
2、 1990 BSI BS*472?:PT2: GROUP*04 91 m 1624bb9 0229242 9 = BS 4727 : Part 2 : Group 04 : 1991 This British Standard, having been prepared under the direction of the General Electrotechnical Standards Policy Committee, was published under the authority of the standards Board and comes into effect on 28
3、 February 1991 O BSI 1991 First published April 1926 Second edition October 1936 Third edition January 1943 Fourth edition Part 1 May 1967 Retitled-as BS 4727 : Part 2 : Group 04 in February 1973 Fifth edition February 1991 The foliowing BSI references relate to the work on this standard: Committee
4、reference GEU1 Draft for comment 77 29643 DC ISBN O 680 19466 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Genera Electrotechnical Standards Policy Committee (GEL/-) to Qchnical Committee GEL/l, upon which the following bodies were
5、represented: Association of Consulting Engineers British Broadcasting Corporation Department of Trade and Industxy ( Radiocommunications Division) EEA (the Association of Electronics, Telecommunications and Business Electricity Supply Industry in United Kingdom Institute of Physics Institution of El
6、ectiical Engineers Equipment Industries) Amendments issued since publication I Sgcted I Amd. No. BSI BS*4727:PT2: GROUP*O4 91i Eb24bb9 0229243 0 BS 4727 : Part 2 : Group 04 : 1991 Contents Committees responsible National foreword Guide to the dossarv Page Inside front cover ii iv Glossary 421-01 Gen
7、eral terms 1 421-02 Terminals 8 421-03 Windings 9 421-04 Rating 12 42-O5 Zippings 15 421-06 Losses and no-load current 19 421-07 Impedance voltage, short-circuit impedance and voltage drop 22 421-08 Temperature rise 25 421-09 Insulation 25 421-10 Connections 26 421-11 On-load tap-changers 29 421-12
8、On-load tap-changer motor-drive mechanisms 34 Inde K 39 -_ ._. BSI BS*4727:PT2: GROUP804 9% 0 3624669 0229244 2 M BS 4727 : Part 2 : Group 04 : 1991 National foreword This Group of BS 4727 : Part 2 has been prepared under the direction of the General Electrotechnical Standards Policy Committee and i
9、s identical with IEC 50(421) : 1990 International Electrotechnical Vocabulaiy Chapter 421 : Power transformers and reactors published by the International Electrotechnical Commission (IEC). It supersedes BS 4727 : Part 2 : Group 04 : 1973 which is withdrawn. For ease of production purposes the defin
10、itions given in French and Russian have been retained, together with the translation of the terms (but not the definitions) given in German, Spanish, Italian, Dutch, Polish and Swedish. The glossaiy is divided into five Parts, each of which is subdivided into Groups. Each Group will comprise the ter
11、ms and definitions used in a particular branch of electrical engineering and will be issued individually as soon as it is completed. This arrangement makes it possible to add new Groups or review existing Groups at any time without affecting the remainder of the glossaiy. The five Parts of the gloss
12、ary are as follows. Part 1 Part 2 Part 3 Part 4 Part 5 Terms common to power, telecommunications and electronics Terms particular to power engineering Terms particular to telecommunications and electronics lrms particular to lighting and colour lrms particular to electromedical equipment Fundamental
13、 and general terms common to power, telecommunications and electronics form Groups O1 and 02 of Part 1. Group O1 of Part 3 contains general terms. The specialist Groups (e.g. Groups 03 to 11 of Part 1) contain only the terms and definitions relating to their subject. As far as has been practicable a
14、ll terms and definitions established in current usage and falling within the scope of this glossary have been included. Experience has shown that it is rarely possible to replace, or even to modify, a well established term no matter what the logical or aesthetic shortcomings of that term may be. Cur
15、rent usage has therefore been accepted as the authority for terms and their meaning except where there has been a veiy good reason for doing otherwise, e.g. where terms have been considered to be fundamentally wrong, ambiguous, superfluous or in need of standardization. Where two or more synonymous
16、terms are in use, those which are deprecated are omitted from the body of the text but are entered in the alphabetical index with a cross-reference to the standard term. In cases where it was felt that the time was not yet right to deprecate a synonym, preferred terms are given fii.st and the other
17、terms are printed in less prominent type to indicate the intention to deprecate them in the course of time. Where synonyms are considered of equal value they are shown in the same type. Where teims are used with different meanings in different branches of electrical engineering, appropriate definiti
18、ons are given in the Groups of the glossaiy corresponding to these branches. Such a definition, when taken out of the context of its Group, should if possible be quoted with a preamble indicating its proper context. It is to be noted that the given definition of a term represents the generally accep
19、ted meaning of that term. Under no circumstances should it be regarded as taking the place of a specification. As far as possible the terms are arranged in a logical order proceeding from the general to the specific and from the whole to the part, and allied teims are placed close together. ii l BSI
20、 BS*4727:PT2: GROUP*4 91 1624669 0229245 4 BS 4727 : Part 2 : Group 04 : 1991 In earlier editions of BS 4727, a special national numbering system was used, however, to facilitate publication of future editions of BS 4727, only the International Electrotechnical Vocabulary numbering system is used. A
21、 general view of the position of the Group in the glossary can be obtained from the guide to the glossary. An alphabetical index of the terms of each Group is provided at the end of each Group to facilitate reference to particular terms. It is recommended that the user of any Group of the glossary s
22、hould consider the Group in association with the Groups covering general or fundamental terms within the Part and with Groups O1 and 02 of Part 1. In this glossary parentheses ( ) enclose words or phrases that are not part of the term or definition and can be omitted without affecting the meaning. S
23、quare brackets enclose words which may replace a preceding part of an expression. Compliance with a British Standard does not of itself confer immunity from legal obligations. iii BSI BS*472i:PT2: GROUP*O4 91 E i1624669 OZ2924b b E BS 4727 : Part 2 : Group 04 : 1991 Guide to the glossary Part 1 Rrms
24、 common to power, telecommunications and electronics Group O1 Fundamental terminology Group 02 Electrical and magnetic devices terminology Group 03 Relay terminology Group 04 Measurement terminology Group 05 Semiconductor terminology Group 06 Electronic tube terminology Group 07 Magnetic materials a
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