1、BRITISH STANDARD BS 4727-2.09: 1981 Glossary of Electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 2: Terms particular to power engineering Group 09: Transductor terminology UDC 001.4:621.3 + 628.9 + 535:621.318.435.3BS4727-2.09:1981 This British Standard, having
2、 been prepared under the directionof the General Electrotechnical Engineering Standards Committee, was published under the authorityofthe Executive Boardand comes into effect on 30 November 1981 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference GEL/1 D
3、raft for comment 78/20757 DC ISBN 0 580 12470 3 Cooperating organizations The General Electrotechnical Engineering Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: British Approvals Service for Electric Cables Ltd. Associa
4、ted Offices Technical Committee British Electrical and Allied Manufacturers Association (BEAMA) British Radio Equipment Manufacturers Association* British Steel Corporation Energy Industries Council Department of Energy (Electricity) Department of Industry Electric Cable Makers Confederation Electri
5、cal Contractors Association Electrical Contractors Association of Scotland Electricity Supply Industry in England and Wales* Electronic Components Industry Federation Electronic Engineering Association* Engineering Equipment Users Association Era Technology Ltd. Health and Safety Executive Home Offi
6、ce Institution of Electrical Engineers* Ministry of Defence* National Coal Board Oil companies Materials Association Post Office* Telecommunication Engineering and Manufacturing Association (TEMA)* The organizations marked with an asterisk in the above list, together with the following, were directl
7、y represented on the Technical Committee entrusted with the preparation of this British Standard: Association of Consulting Scientists British Broadcasting Corporation Institute of Physics Institution of Electronic and Radio Engineers Power Generation Association (BEAMA) Radio and Electronics Techni
8、cal Press Amendments issued since publication Amd. No. Date of issue CommentsBS4727-2.09:1981 BSI 10-1999 i Contents Page Cooperating organizations Inside front cover Foreword ii Guide to the glossary 1 209 1 Terms relating to constructional elements 2 209 2 Terms relating to physical quantities 2 2
9、09 3 Modes of excitation 3 209 4 Classification 4 209 5 Applications 5 Alphabetical index 6BS4727-2.09:1981 ii BSI 10-1999 Foreword This Group of Part 2 of this British Standard glossary, prepared under the direction of the General Electrotechnical Engineering Standards Committee, contains terms and
10、 definitions relating to recording and reproduction of sound and video. The text of this British Standard is identical with the English text of Chapter 431, first edition, 1980, of the International Electrotechnical Vocabulary published by the International Electrotechnical Commission (IEC). In this
11、 new glossary a number of significant changes have been introduced. It has been decided to combine into one glossary the subjects previously covered by BS204 “Glossary of terms used in telecommunication (including radio) and electronics”, BS 205 “Glossary of terms used in electrical engineering”, BS
12、 233 “Glossary of terms used in illumination and photometry” and BS1611 “Glossary of colour terms used in science and in industry”. These four glossaries have now been withdrawn. The glossary is divided into four main Parts, each of which is further subdivided into Groups. Each Group will comprise t
13、he 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 Groups or revise existing Groups at any time without affecting the remainder of the glossary. The four main Parts o
14、f 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 and electronics; Part 4: Terms particular to lighting and colour. Fundamental and general terms common to po
15、wer, telecommunications and electronics respectively form the first two Groups of Part 1. General terms particular to Part 2 and Part 3 similarly form the first Groups of their respective Parts. The specialist Groups contain only the terms and definitions relating to their subject. As far as has bee
16、n practicable all 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 t
17、erm may be. Current usage has therefore been accepted as the authority for terms and their meanings except where there has been a very 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
18、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 cases where it was felt that the time was not yet right to deprecate a synonym, preferred terms are given first
19、 and 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 same type. Where terms are used with somewhat different meanings in different branches of electrical engineering,
20、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 always be quoted with a preamble indicating its proper context. It is to be noted that the given definition of a term represents the
21、generally accepted meaning of that term. Under no circumstances should it be regarded as taking the place of a specification.BS4727-2.09:1981 BSI 10-1999 iii An effort has been made to arrange the terms in a logical order proceeding from the general to the specific and from the whole to the part and
22、 placing allied terms in proximity. Each term has assigned to it a Part number (one digit) and a Group number of two digits followed by a space and four digits, the first digit of which represents the section, the second digit the subsection and the last two digits the place within the subsection. T
23、he International Electrotechnical Vocabulary employs a different numbering system and for convenience the IEV number is given in parentheses after the BS number for each term. A general view of the arrangement of the Group in the glossary can be obtained from the guide to the glossary. An alphabetic
24、al index of the terms of the Group is provided at the end to facilitate reference to particular terms. For simplicity, only the last four digits of a terms number are quoted in the index. It is recommended that the user of any Group of the glossary should consider the Group in association with the G
25、roups covering general or fundamental terms within the Part, for Parts 2 and 3, and also together with Groups 01 and 02 of Part1. 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. A British Standard
26、does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their 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 i
27、nside front cover, pages i to iv, pages1to 6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.iv blankBS4727-2.09:1981 BSI 10-1999 1 Guide to the glossary Part 1 Ter
28、ms common to power, telecommunications and electronics Group 01 Fundamental concepts 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 Magnetism terminology
29、 Group 08 Piezo-electric device terminology Group 09 Radio interference terminology Group Radiological terminology 1) Group Integrated electronic circuit terminology 1) Titles to any further groups will be added in due course. Part 2 Terms particular to power engineering Group 01 General power termi
30、nology Group 02 Static converter terminology Group 03 Rotating machinery terminology Group 04 Transformer terminology Group 05 Voltage fluctuation terminology Group 06 Switchgear and controlgear terminology (including fuse terminology) Group 07 Tariffs terminology Group 08 Power cable terminology Gr
31、oup 09 Transductor terminology Group Power systems terminology 1) Group Systems operation terminology 1) Group Traction terminology 1) Titles to any further groups will be added in due course. Part 3 Terms particular to telecommunications and electronics Group 01 General telecommunication and electr
32、onics terminology Group 02 Telephony terminology Group 03 Telegraphy, including facsimile, terminology Group 04 Broadcasting, radio and television terminology Group 05 Propagation and media terminology Group 06 Radio location and navigation terminology Group 07 Radiocommunication terminology Group 0
33、8 Electro-acoustics terminology 1) Group 09 Waveguide terminology Group 10 Recording and reproduction of sound and video terminology Titles to any further groups will be added in due course. Part 4 Terms particular to lighting and colour Group 01 Radiation and photometry terminology Group 02 Vision
34、and colour terminology Group 03 Lighting technology terminology 1) Not yet published, as at November 1981.BS4727-2.09:1981 2 BSI 10-1999 209 1 (431-01). Terms relating to constructional elements 209 2 (431-02). Terms relating to physical quantities No. Term Definition 209 1001 (431-01-01) transducto
35、r A device consisting of one or more ferromagnetic cores with windings, by means of which an a.c. or d.c. current or voltage can be varied by an independent voltage or current, utilizing saturation phenomena in the magnetic circuit. 209 1002 (431-01-02) transductor element One of the cores with its
36、windings which form part of a transductor. 209 1003 (431-01-03) excitation winding A winding of a transductor element by means of which excitation is obtained. 209 1004 (431-01-04) power winding A winding of a transductor element through which the load current flows. 209 1005 (431-01-05) control win
37、ding An excitation winding by means of which the output power is controlled from an external source. 209 1006 (431-01-06) bias winding An excitation winding carrying a current used for displacing the mean operating point on the static characteristic. 209 1007 (431-01-07) self-excitation winding An e
38、xcitation winding, by means of which self-excitation is obtained. 209 1008 (431-01-08) auto self-excitation valve A valve connected in series with a power winding of a transductor to obtain self-excitation. 209 2001 (431-02-01) output voltage; load voltage The voltage which is transferred to the loa
39、d impedance in a circuit which includes a transductor. 209 2002 (431-02-02) absorbed voltage The voltage which is absorbed by a transductor in a circuit. 209 2003 (431-02-03) control current The current which flows in a control winding of a transductor. 209 2004 (431-02-04) control voltage The volta
40、ge across the control terminals of a transductor. 209 2005 (431-02-05) static characteristic; transfer curve Of a transductor. The graphic representation of the relation between an output quantity and a control quantity under steady-state conditions. 209 2006 (431-02-06) voltage ratio; voltage ampli
41、fication The ratio under steady-state conditions of a small change of the output voltage to the corresponding change of the control voltage at specified load and operating conditions. 209 2007 (431-02-07) current ratio; current amplification The ratio under steady-state conditions of a small change
42、of the output current to the corresponding change of the control current at specified load and operating conditions. 209 2008 (431-02-08) power amplification The ratio under steady-state conditions of a small change of the output power to the corresponding change of the control power at specified lo
43、ad and operating conditions.BS4727-2.09:1981 BSI 10-1999 3 209 3 (431-03). Modes of excitation No. Term Definition 209 2009 (431-02-09) total time constant The time constant of the response of an output quantity of a transductor to a sudden small change of the control voltage at specified load and o
44、perating conditions. 209 2010 (431-02-10) residual time constant The time constant of the response of an output quantity of a transductor to a sudden small change of the control current at specified load and operating conditions. 209 2011 (431-02-11) input time constant The difference between the to
45、tal time constant and the residual time constant. 209 2012 (431-02-12) response time The time from a sudden change of a control quantity until the corresponding change of an output quantity has reached a specified fraction of its final value. 209 2013 (431-02-13) saturation inductance That inductanc
46、e of a power winding which corresponds to small flux variations within the saturated range of the magnetizing curve. 209 2014 (431-02-14) saturation reactance The reactance corresponding to the saturation inductance at the frequency of the alternating current power source. 209 2015 (431-02-15) figur
47、e of merit The ratio of the power amplification to the response time. 209 3001 (431-03-01) excitation of a transductor The action of a winding (excitation winding) or of an auxiliary magneto-motive force for the purpose of modifying the magnetic conditions of a transductor element. 209 3002 (431-03-
48、02) self-excitation The procedure by means of which the value of an output quantity influences the excitation of a transductor. 209 3003 (431-03-03) auto self-excitation; self-saturation The procedure by means of which self-excitation is obtained with the aid of the power winding. 209 3004 (431-03-0
49、4) separate self-excitation The procedure by means of which self-excitation is obtained with the aid of a separate excitation winding. 209 3005 (431-03-05) critical self-excitation The self-excitation which results in infinite steepness of part of the static characteristic of a transductor. 209 3006 (431-03-06) ideal self-excitation The degree of self-excitation which would result in critical self-excitation of a transductor whose cores have infinite permeability in the unsaturated range and whose self-excitation rectifier is ideal.BS4727-2.09:1981 4 BSI 10
