1、BRITISH STANDARD BS 4727-2: Group 16:1991 IEC 50(321): 1986 Glossary of Electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 2: Terms particular to power engineering Group 16: Instrument transformersBS4727-2:Group 16:1991 This British Standard, having been prepared
2、 under the directionof the General Electrotechnical Standards PolicyCommittee, was publishedunder the authority ofthe Standards Board and comesinto effect on 29November 1991 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference GEL/1 Draft announced in BSI
3、 News September 1991 ISBN 0 580 203174 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the General Electrotechnical Standards Policy Committee (GEL/-) to Technical Committee GEL/1, upon which the following bodies were represented: Associatio
4、n of Consulting Engineers British Broadcasting Corporation Department of Trade and Industry (Radiocommunications Division) EEA (the Association of Electronics, Telecommunications and Business Equipment Industries Electricity Supply Industry in United Kingdom Institute of Physics Institution of Elect
5、rical Engineers Amendments issued since publication Amd. No. Date CommentsBS4727-2:Group 16:1991 BSI 10-1999 i Contents Page Committees responsible Inside front cover National foreword ii Guide to the glossary iv 321-01 General and common terms 1 321-02 Current transformers 8 321-03 Voltage transfor
6、mers 16 Index 26BS4727-2:Group 16:1991 ii BSI 10-1999 National foreword This Group of BS 4727-2 has been prepared under the direction of the General Electrotechnical Standards Policy Committee and is identical with IEC 50(321):1986 “International Electrotechnical Vocabulary Chapter321:Instrument tra
7、nsformers”, published by the International Electrotechnical Commission (IEC). For ease of production purposes the definitions 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 Swed
8、ish. The glossary is divided into five Parts, each of which is subdivided into Groups. Each Group will comprise the terms 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 Gr
9、oups or review existing Groups at any time without affecting the remainder of the glossary. The five Parts of the glossary are as follows. Part 1: Terms common to power, telecommunications and electronics; Part 2: Terms particular to power engineering; Part 3: Terms particular to telecommunications
10、and electronics; Part 4: Terms particular to lighting and colour; Part 5: Terms particular to electromedical equipment. Fundamental and general terms common to power, telecommunications and electronics form Groups 01 and 02 of Part 1. Group 01 of Part 3 contains general terms. The specialist Groups
11、(e.g.Groups03 to 13 of Part 1) contain only the terms and definitions relating to their subject. As far as has been practicable all terms and definitions established in current usage and falling within the scope of this glossary have been included. Experience has shown that is rarely possible to rep
12、lace, or even to modify, a well established term no matter what the logical or aesthetic shortcomings of that term may be. Current usage has therefore been accepted as the authority for terms and their meaning except where there has been a very good reason for doing otherwise, e.g.where terms have b
13、een considered to be fundamentally wrong, ambiguous, superfluous or in need of standardization. Where two or more synonymous 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 ca
14、ses where it was felt that the time was not yet right to deprecate a synonym, preferred terms are given first and the other 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 s
15、ame type. Where terms are used with different meanings in different branches of electrical engineering, appropriate definitions are given in the Groups of the glossary corresponding to these branches. Such a definition, when taken out of the context of its Group, should if possible be quoted with a
16、preamble indicating its proper context. It is to be noted that the given definition of a term represents the generally accepted 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 proc
17、eeding from the general to the specific and from the whole to the part, and allied terms are placed close together. 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
18、Vocabulary numbering system is used.BS4727-2:Group 16:1991 BSI 10-1999 iii A 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 part
19、icular terms. It is recommended that the user of any Group of the glossary should consider the Group in association with the Groups covering general or fundamental terms within the Part and with Groups 01 and 02 of Part 1. In this glossary parentheses () enclose words or phrases that are not part of
20、 the term or definition and can be omitted without affecting the meaning. Square brackets enclose words which may replace a preceding part of an expression. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their
21、 correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to vi, pages1to 41and a back cover. This standard has been updated (see copyright date) and may h
22、ave had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS4727-2:Group 16:1991 iv BSI 10-1999 Guide to the glossary Part 1 Terms common to power, telecommunications and electronics Group 01 Fundamental terminology Group 02 Electrical and magnetic devi
23、ces terminology Group 03 Relay terminology Group 04 Measurement terminology Group 05 Semiconductor terminology Group 06 Electronic tube terminology Group 07 Magnetic materials and components Group 08 Piezo-electric device terminology Group 09 Electromagnetic compatibility Group 10 Insulating solids,
24、 liquids and gases Group 11 Printed circuits Group 12 Insulators Group 13 Electromechanical components for electronic equipment Titles to any further Groups will be added in due course. Part 2 Terms particular to power engineering Group 01 General power terminology (withdrawn) Group 02 Power electro
25、nics terminology Group 03 Rotating machinery terminology Group 04 Power transformers and reactors Group 05 Voltage fluctuation terminology Group 06 Switchgear and controlgear terminology (including fuse terminology) Group 07 Tariffs terminology Group 08 Electric cable terminology Group 09 Transducer
26、 terminology Group 10 Industrial electroheating terminology Group 11 Generation, transmission and distribution of electricity terminology Group 12 Telecontrol terminology Group 13 Electrical apparatus for explosive atmospheres Group 14 Power capacitors Group 15 Overhead lines Group 16 Instrument tra
27、nsformers Titles to any further Groups will be added in due course. Part 3 Terms particular to telecommunications and electronics Group 01 General telecommunication and electronics terminology Group 02 Telephony terminology Group 03 Telegraphy, including facsimile, terminology Group 04 Broadcasting,
28、 radio and television terminology Group 05 Propagation and media terminology Group 06 Radio location and navigation terminology Group 07 Radiocommunication terminology Group 08 Acoustics and electro-acoustics terminology Group 09 Transmission lines and waveguides Group 10 Recording and reproduction
29、of sound and video terminology Group 11 Space radiocommunications terminology Group 12 Telecommunications channels and networksBS4727-2:Group 16:1991 BSI 10-1999 v Titles to any further Groups will be added in due course. Part 4 Terms particular to lighting and colour (withdrawn) Part 5 Terms partic
30、ular to electromedical equipment Group 01 Radiology and radiological physics terminology Titles to any further Groups will be added in due course.vi blankBS4727-2:Group 16:1991 BSI 10-1999 1BS4727-2:Group 16:1991 2 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 3BS4727-2:Group 16:1991 4 BSI 10-1999BS
31、4727-2:Group 16:1991 BSI 10-1999 5BS4727-2:Group 16:1991 6 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 7BS4727-2:Group 16:1991 8 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 9BS4727-2:Group 16:1991 10 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 11BS4727-2:Group 16:1991 12 BSI 10-1999BS4727-2:Gr
32、oup 16:1991 BSI 10-1999 13BS4727-2:Group 16:1991 14 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 15BS4727-2:Group 16:1991 16 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 17BS4727-2:Group 16:1991 18 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 19BS4727-2:Group 16:1991 20 BSI 10-1999BS4727-2:Group
33、16:1991 BSI 10-1999 21BS4727-2:Group 16:1991 22 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 23BS4727-2:Group 16:1991 24 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 25BS4727-2:Group 16:1991 26 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 27BS4727-2:Group 16:1991 28 BSI 10-1999BS4727-2:Group 16:1
34、991 BSI 10-1999 29BS4727-2:Group 16:1991 30 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 31BS4727-2:Group 16:1991 32 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 33BS4727-2:Group 16:1991 34 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 35BS4727-2:Group 16:1991 36 BSI 10-1999BS4727-2:Group 16:1991
35、BSI 10-1999 37BS4727-2:Group 16:1991 38 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 39BS4727-2:Group 16:1991 40 BSI 10-1999BS4727-2:Group 16:1991 BSI 10-1999 41BS4727-2: Group16:1991 IEC50(321): 1986 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent nat
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