1、BRITISH STANDARDBS ISO 8528-3:2005Reciprocating internal combustion engine driven alternating current generating sets Part 3: Alternating current generators for generating sets ICS 27.020; 29.160.20; 29.160.40g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g5
2、0g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS ISO 8528-3:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 10 February 2006 BSI 10 February 2006ISBN 0 580 47712 6National for
3、ewordThis British Standard reproduces verbatim ISO 8528-3:2005 and implements it as the UK national standard. It supersedes BS 7698-3:1993 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee MCE/14, RIC engines, to Subcommittee MCE/14/-/8, RIC engines gene
4、rating sets, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the
5、 section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applicatio
6、n. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor rel
7、ated international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 15 and a back cover.The BSI copyright notice displayed in this document indicates when the document
8、was last issued.Amendments issued since publicationAmd. No. Date CommentsReference numberISO 8528-3:2005(E)INTERNATIONAL STANDARD ISO8528-3Second edition2005-07-01Reciprocating internal combustion engine driven alternating current generating sets Part 3: Alternating current generators for generating
9、 sets Groupes lectrognes courant alternatif entrans par moteurs alternatifs combustion interne Partie 3: Alternateurs pour groupes lectrognes BS ISO 8528-3:2005ii iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Symbols, terms and definitions 2 4 Other requirements and additiona
10、l regulations 6 5 Rating. 6 5.1 General. 6 5.2 Basic continuous rating (BR) 6 5.3 Peak continuous rating (PR) 6 6 Limits of temperature and temperature rise 7 6.1 Basic continuous rating. 7 6.2 Peak continuous rating 7 7 Rated power and speed characteristics. 7 8 Voltage characteristics. 7 9 Paralle
11、l operation 7 10 Special load conditions 8 10.1 General. 8 10.2 Unbalanced load current 8 10.3 Sustained short-circuit current . 8 10.4 Occasional excess current capability. 8 10.5 Telephone Harmonic Factor (THF) 8 10.6 Radio interference suppression (F) 9 11 Effect of electromechanical frequency of
12、 vibrations when sets operate in parallel . 9 12 Asynchronous generators with excitation equipment 9 12.1 General. 9 12.2 Sustained short-circuit current . 9 12.3 Range of voltage setting 9 12.4 Parallel operation 9 13 Operating limit values 10 14 Rating plate . 10 Annex A (normative) Transient volt
13、age characteristic of an a.c. generator following a sudden change in load. 11 BS ISO 8528-3:2005iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally c
14、arried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the wor
15、k. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare Inter
16、national Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of th
17、e elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 8528-3 was prepared by Technical Committee ISO/TC 70, Internal combustion engines. This second edition cancels and replaces the first edition (ISO 852
18、8-3:1993), which has been technically revised. ISO 8528 consists of the following parts, under the general title Reciprocating internal combustion engine driven alternating current generating sets: Part 1: Application, ratings and performance Part 2: Engines Part 3: Alternating current generators fo
19、r generating sets Part 4: Controlgear and switchgear Part 5: Generating sets Part 6: Test methods Part 7: Technical declarations for specification and design Part 8: Requirements and tests for low-power generating sets Part 9: Measurement and evaluation of mechanical vibrations Part 10: Measurement
20、of airborne noise by the enveloping surface method Part 111): Rotary uninterruptible power supply systems Performance requirements and test methods Part 12: Emergency power supplies to safety services 1) Part 11 will be published as ISO/IEC 88528-11. BS ISO 8528-3:20051Reciprocating internal combust
21、ion engine driven alternating current generating sets Part 3: Alternating current generators for generating sets 1 Scope This part of ISO 8528 specifies the principal characteristics of Alternating Current (a.c.) generators under the control of their voltage regulators when used in generating set ap
22、plications. It supplements the requirements of IEC 60034-1. NOTE At present no International Standard is available for asynchronous generators. When such an International Standard is published, this part of ISO 8528 will be revised accordingly. This part of ISO 8528 applies to a.c. generators used i
23、n a.c. generating sets driven by reciprocating internal combustion (RIC) engines for land and marine use, excluding generating sets used on aircraft or to propel land vehicles and locomotives. For some specific applications (e.g. essential hospital supplies, high-rise buildings), supplementary requi
24、rements may be necessary. The provisions of this part of ISO 8528 should be regarded as the basis for establishing any supplementary requirements. For a.c. generating sets driven by other reciprocating-type prime movers (e.g. steam engines) the provisions of this part of ISO 8528 should be used as a
25、 basis for establishing these requirements. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any ame
26、ndments) applies. ISO 8528-12), Reciprocating internal combustion engine driven alternating current generating sets Part 1: Application, ratings and performance IEC 60034-1, Rotating electrical machines Part 1: Rating and performance CISPR 14-1, Limits and methods of measurement of radio interferenc
27、e characteristics of household electrical appliances, portable tools and similar electrical apparatus CISPR 15, Limits and methods of measurement of radio interference characteristics of fluorescent lamps and luminaires 2) To be published. BS ISO 8528-3:20052 3 Symbols, terms and definitions For ind
28、ications of technical data for electrical equipment, IEC uses the term “rated” and the subscript “N”. For indications of technical data for mechanical equipment, ISO uses the term “declared” and the sub-script “r”. Therefore, in this part of ISO 8528, the term “rated” is applied only to electrical i
29、tems. Otherwise, the term “declared” is used throughout. An explanation of the symbols and abbreviations used in this International Standard are shown in Table 1. Table 1 Symbols, terms and definitions Symbol Term Unit Definition UsSet voltage V Line-to-line voltage for defined operation selected by
30、 adjustment. Ust,maxMaximum steady-state voltage deviation V Ust,minMinimum steady-state voltage deviation V UrRated voltage V Line-to-line voltage at the terminals of the generator at the rated frequency and rated output. NOTE Rated voltage is the voltage assigned by the manufacturer for operating
31、and performance characteristics. UrecRecovery voltage V Maximum obtainable steady-state voltage for a specified load condition. NOTE Recovery voltage is normally expressed as a percentage of the rated voltage. It normally lies within the steady-state voltage tolerance band (U). For loads in excess o
32、f the rated load, recovery voltage is limited by saturation and exciter-regulator field forcing capability (see Figure A.2.1). Us,doDownward adjustable voltage V Us,upUpward adjustable voltage V U0No-load voltage V Line-to-line voltage at the terminals of the generator at rated frequency and no-load
33、. Udyn,maxMaximum upward transient voltage on load decrease V Udyn,minMinimum downward transient voltage on load increase V U Steady-state voltage tolerance band V Agreed voltage band about the steady-state voltage that the voltage reaches within a given regulating period after a specified sudden in
34、crease or decrease of load given by: rst2100UUU= BS ISO 8528-3:20053Table 1 (continued) Symbol Term Unit Definition UsRange of voltage setting V Range of maximum possible upward and downward adjustment of voltage at the generator terminals at rated frequency, for all loads between no-load and rated
35、output and within the agreed range of power factor given by: Us= Us,up+ Us,doUs,doDownward range of voltage setting V Range between the rated voltage and downward adjustment of voltage at the generator terminals at rated frequency, for all loads between no-load and rated output within the agreed ran
36、ge of power factor given by: Us,do= Ur Us,doUs,upUpward range of voltage setting V Range between the rated voltage and upward adjustment of voltage at the generator terminals at rated frequency, for allloads between no-load and rated output within the agreed range of power factor given by: Us,up= Us
37、,up Ur UdynTransient voltage deviation V dynUTransient voltage deviation on load increasea% Transient voltage deviation on load increase is the voltage drop when the generator, driven at rated speed and at rated voltage under normal excitation control, is switched onto rated load, expressed as a per
38、centage of rated voltage given by: dyn,mindynr100rUUUU= dynU+Transient voltage deviation on load decreasea% Transient voltage deviation on load decrease is the voltage rise when the generator, driven at rated speed and at rated voltage under normal excitation control, has a sudden rejection of rated
39、 load, expressed as a percentage of rated voltage given by: dyn,maxdynr100rUUUU+= If the load change differs from the above-defined values, then the specified values and the associated power factors shall be stated. UsRelated range of voltage setting % Range of voltage setting expressed as a percent
40、age of the rated voltage given by: s,up s,dosr100UUUU+= BS ISO 8528-3:20054 Table 1 (continued) Symbol Term Unit Definition Us,doRelated downward range of voltage setting % Downward range of voltage setting expressed as a percentage of the rated voltage given by: rs,dos,dor100UUUU= Us,upRelated upwa
41、rd range of voltage setting % Upward range of voltage setting, expressed as a percentage of the rated voltage given by: s,up rs,upr100UUUU= UstSteady-state voltage deviation % Change in steady-state voltage for all load changes between no-load and rated output, taking into account the influence of t
42、emperature, but not considering the effect of quadrature-current compensation droop. NOTE The initial set voltage is usually the rated voltage, but may be anywhere within the specified range of Us. The steady-state voltage deviation is expressed as a percentage of the rated voltage given by: st,max
43、st,minstr1002UUUU= mod,maxU Maximum peak of voltage modulation % Quasi-periodic maximum voltage variation (peak-to-peak) about a steady-state voltage mod,minU Minimum peak of voltage modulation % Quasi-periodic minimum voltage variation (peak-to-peak) about a steady-state voltage modU Voltage modula
44、tion % Quasi-periodic voltage variation (peak-to-peak) about a steady-state voltage having typical frequencies below the fundamental generation frequency, expressed as a percentage of average peak voltage at rated frequency and constant speed given by: mod,max mod,minmodmod,max mod,min2 100UUU=+ U2,
45、0Voltage unbalance % Ratio of the negative sequence or the zero sequence voltage components to the positive sequence voltage component at no-load. Voltage unbalance is expressed as a percentage of the rated voltage. Voltage regulation characteristics Curves of terminal voltage as a function of load
46、current at a given power factor under steady-state conditions at rated speed without any manual adjustment of the voltage regulating system. QCCGrade of quadrature-current compensation voltage droop BS ISO 8528-3:20055Table 1 (continued) Symbol Term Unit Definition sr,GRated slip of an asynchronous
47、generator The difference between the synchronous speed and the rated speed of the rotor referred to the synchronous speed, where the generating set is giving its rated active power and is given by: rr,Gr,Gr(/)/fp nsfp= frRated frequency Hz p Number of pole pairs nr,GRated speed of generator rotation
48、 min1Speed of rotation necessary for voltage generation at the rated frequency. NOTE For a synchronous generator, this rotational speed is given by: rr,Gfnp= For an asynchronous generator, this speed is given by: rr,G r,G(1 )fnsp= SrRated output (rated apparent power) VA Apparent electric power at t
49、he terminals or its decimal multiples together with the power factor. PrRated active power W Rated apparent power multiplied by the rated power factor or its decimal multiples given by: rr rcosPS = cos rRated power factor Ratio of the rated active power to the rated apparent power given by: rrrcosPS = QrRated reactive power var Geometrical difference between the rated apparent power and the rated active power or its decimal multiples given by: 22rrrQSP= tU,inVoltage recover
