1、BRITISH STANDARD BS ISO 8528-3:2005 Reciprocating internal combustion engine driven alternating current generating sets Part 3: Alternating current generators for generating sets ICS 27.020; 29.160.20; 29.160.40 BS ISO 8528-3:2005 This British Standard was published under the authority of the Standa
2、rds Policy and Strategy Committee on 10 February 2006 BSI 10 February 2006 ISBN 0 580 47712 6 National foreword This 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 It supersedes BS 7698-3:1993 which is withdrawn.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 prepar
3、ation was entrusted by Technical Committee MCE/14, RIC engines, to Subcommittee MCE/14/-/8, RIC engines generating sets, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which
4、 implement international publications referred to in this document may be found in the BSI Catalogue under the 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
5、purport to include all the necessary provisions of a contract. Users are responsible for its correct application. 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 comm
6、ittee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv
7、, pages 1 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 8528-3:2005(E)INTERNATIONAL STANDARD ISO 8528-3 Second edition 2005-07-01 Reciprocating i
8、nternal combustion engine driven alternating current generating sets Part 3: Alternating current generators for generating sets Groupes lectrognes courant alternatif entrans par moteurs alternatifs combustion interne Partie 3: Alternateurs pour groupes lectrognes BS ISO 8528-3:2005ii iii Contents Pa
9、ge Foreword iv 1 Scope . 1 2 Normative references . 1 3 Symbols, terms and definitions 2 4 Other requirements and additional 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 continuo
10、us rating. 7 6.2 Peak continuous rating 7 7 Rated power and speed characteristics. 7 8 Voltage characteristics. 7 9 Parallel 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 1
11、0.5 Telephone Harmonic Factor (THF) 8 10.6 Radio interference suppression (F) 9 11 Effect of electromechanical frequency of 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 volta
12、ge setting 9 12.4 Parallel operation 9 13 Operating limit values 10 14 Rating plate . 10 Annex A (normative) Transient voltage 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 worldwi
13、de federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried 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 tha
14、t committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in a
15、ccordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard re
16、quires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the 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 Tech
17、nical Committee ISO/TC 70, Internal combustion engines. This second edition cancels and replaces the first edition (ISO 8528-3:1993), which has been technically revised. ISO 8528 consists of the following parts, under the general title Reciprocating internal combustion engine driven alternating curr
18、ent generating sets: Part 1: Application, ratings and performance Part 2: Engines Part 3: Alternating current generators for 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: Requirement
19、s and tests for low-power generating sets Part 9: Measurement and evaluation of mechanical vibrations Part 10: Measurement of airborne noise by the enveloping surface method Part 11 1) : Rotary uninterruptible power supply systems Performance requirements and test methods Part 12: Emergency power su
20、pplies to safety services 1) Part 11 will be published as ISO/IEC 88528-11. BS ISO 8528-3:20051 Reciprocating internal combustion engine driven alternating current generating sets Part 3: Alternating current generators for generating sets 1 Scope This part of ISO 8528 specifies the principal charact
21、eristics of Alternating Current (a.c.) generators under the control of their voltage regulators when used in generating set applications. It supplements the requirements of IEC 60034-1. NOTE At present no International Standard is available for asynchronous generators. When such an International Sta
22、ndard is published, this part of ISO 8528 will be revised accordingly. This part of ISO 8528 applies to a.c. generators used in 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 vehicle
23、s and locomotives. For some specific applications (e.g. essential hospital supplies, high-rise buildings), supplementary requirements 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 dr
24、iven by other reciprocating-type prime movers (e.g. steam engines) the provisions of this part of ISO 8528 should be used as a basis for establishing these requirements. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refere
25、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 8528-1 2) , Reciprocating internal combustion engine driven alternating current generating sets Part 1: Application, ratings and performance IEC 60034-1
26、, Rotating electrical machines Part 1: Rating and performance CISPR 14-1, Limits and methods of measurement of radio interference characteristics of household electrical appliances, portable tools and similar electrical apparatus CISPR 15, Limits and methods of measurement of radio interference char
27、acteristics of fluorescent lamps and luminaires 2) To be published. BS ISO 8528-3:20052 3 Symbols, terms and definitions For indications 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 t
28、he term “declared” and the sub-script “r”. Therefore, in this part of ISO 8528, the term “rated” is applied only to electrical items. 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 S
29、ymbols, terms and definitions Symbol Term Unit Definition U sSet voltage V Line-to-line voltage for defined operation selected by adjustment. U st,maxMaximum steady-state voltage deviation V U st,minMinimum steady-state voltage deviation V U rRated voltage V Line-to-line voltage at the terminals of
30、the generator at the rated frequency and rated output. NOTE Rated voltage is the voltage assigned by the manufacturer for operating and performance characteristics. U recRecovery voltage V Maximum obtainable steady-state voltage for a specified load condition. NOTE Recovery voltage is normally expre
31、ssed as a percentage of the rated voltage. It normally lies within the steady-state voltage tolerance band (U). For loads in excess of the rated load, recovery voltage is limited by saturation and exciter-regulator field forcing capability (see Figure A.2.1). U s,doDownward adjustable voltage V U s,
32、upUpward adjustable voltage V U 0No-load voltage V Line-to-line voltage at the terminals of the generator at rated frequency and no-load. U dyn,maxMaximum upward transient voltage on load decrease V U dyn,minMinimum downward transient voltage on load increase V U Steady-state voltage tolerance band
33、V Agreed voltage band about the steady-state voltage that the voltage reaches within a given regulating period after a specified sudden increase or decrease of load given by: r st 2 100 U UU = BS ISO 8528-3:20053 Table 1 (continued) Symbol Term Unit Definition U sRange of voltage setting V Range of
34、maximum possible upward and downward adjustment of voltage at the generator terminals at rated frequency, for all loads between no-load and rated output and within the agreed range of power factor given by: U s= U s,up+ U s,doU s,doDownward range of voltage setting V Range between the rated voltage
35、and downward adjustment of voltage at the generator terminals at rated frequency, for all loads between no-load and rated output within the agreed range of power factor given by: U s,do= U r U s,doU s,upUpward range of voltage setting V Range between the rated voltage and upward adjustment of voltag
36、e at the generator terminals at rated frequency, for all loads between no-load and rated output within the agreed range of power factor given by: U s,up= U s,up U r U dynTransient voltage deviation V dyn U Transient voltage deviation on load increase a % Transient voltage deviation on load increase
37、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 percentage of rated voltage given by: dyn,min dyn r 100 r UU U U = dyn U +Transient voltage deviation on load decrease a% Transient voltage
38、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 load, expressed as a percentage of rated voltage given by: dyn,max dyn r 100 r UU U U + = If the load change differs from the
39、 above- defined values, then the specified values and the associated power factors shall be stated. U sRelated range of voltage setting % Range of voltage setting expressed as a percentage of the rated voltage given by: s,up s,do s r 100 UU U U + = BS ISO 8528-3:20054 Table 1 (continued) Symbol Term
40、 Unit Definition U s,doRelated downward range of voltage setting % Downward range of voltage setting expressed as a percentage of the rated voltage given by: rs , d o s,do r 100 UU U U = U s,upRelated upward range of voltage setting % Upward range of voltage setting, expressed as a percentage of the
41、 rated voltage given by: s,up r s,up r 100 UU U U = U stSteady-state voltage deviation % Change in steady-state voltage for all load changes between no-load and rated output, taking into account the influence of temperature, but not considering the effect of quadrature-current compensation droop. NO
42、TE The initial set voltage is usually the rated voltage, but may be anywhere within the specified range of U s . The steady-state voltage deviation is expressed as a percentage of the rated voltage given by: st,max st,min st r 100 2 UU U U = mod,max U Maximum peak of voltage modulation % Quasi-perio
43、dic maximum voltage variation (peak-to-peak) about a steady-state voltage mod,min U Minimum peak of voltage modulation % Quasi-periodic minimum voltage variation (peak-to-peak) about a steady-state voltage mod U Voltage modulation % Quasi-periodic voltage variation (peak-to- peak) about a steady-sta
44、te 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,min mod mod,max mod,min 2 100 UU U UU = + U 2,0Voltage unbalance % Ratio of the negative sequence or the zer
45、o 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 current at a given power factor under steady-state conditions
46、at rated speed without any manual adjustment of the voltage regulating system. QCCGrade of quadrature-current compensation voltage droop BS ISO 8528-3:20055 Table 1 (continued) Symbol Term Unit Definition s r,GRated slip of an asynchronous generator The difference between the synchronous speed and t
47、he 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 , G r,G r (/) / fpn s fp = f rRated frequency Hz p Number of pole pairs n r,GRated speed of generator rotation min 1Speed of rotation necessary for voltage gen
48、eration at the rated frequency. NOTE For a synchronous generator, this rotational speed is given by: r r,G f n p = For an asynchronous generator, this speed is given by: r r,G r,G (1 ) f ns p = S rRated output (rated apparent power) VA Apparent electric power at the terminals or its decimal multiple
49、s together with the power factor. P rRated active power W Rated apparent power multiplied by the rated power factor or its decimal multiples given by: rrr cos PS = cos rRated power factor Ratio of the rated active power to the rated apparent power given by: r r r cos P S = Q rRated reactive power var Geometrical difference between th
