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1、BRITISH STANDARD BS EN 60034-3:1996 BS 5000-2:1992 renumbered Rotating electrical machines Part 3: Specific requirements for turbine-type synchronous machines ICS 29.160.20 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 14:06:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60034-3:1995 T
2、his British Standard, having been prepared under the direction of the Power Electrical Engineering Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 August 1992 BSI 03-1999 First published November 1973 Second edition July 1988 Third edi
3、tion August 1992 The following BSI references relate to the work on this standard: Committee reference PEL/1 Draft for comment 84/20480 DC ISBN 0 580 20809 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Power Electrical Engineering St
4、andards Policy Committee (PEL/-) to Technical Committee PEL/1, upon which the following bodies were represented: Association of Consulting Engineers Association of Electrical Machinery Trades Electricity Association Engineer Surveyors Section of the MSF Engineering Equipment and Materials Users Asso
5、ciation ERA Technology Ltd. Health and Safety Executive Institution of Incorporated Executive Engineers Institution of Plant Engineers Ministry of Defence Power Generation Contractors Association (BEAMA Ltd.) Rotating Electrical Machines Association (BEAMA Ltd.) UK Offshore Operators Association Ame
6、ndments issued since publication Amd. No.DateComments 9035July 1996Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 14:06:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60034-3:1995 BSI 03-1999i Contents Page Committees responsibleInside front cover N
7、ational forewordii Foreword2 Text of EN 60034-33 National annex NA (informative)Inside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 14:06:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60034-3:1995 ii BSI 03-1999 National foreword This British Standard has been prepared by
8、Technical Committee PEL/2 (formerly PEL/1) and is the English language version of EN 60034 Rotating electric machines Part 3:1995 Specific requirements for turbine-type synchronous machines published by the European Committee for Electrotechnical Standardization (CENELEC). It was derived by CENELEC
9、from IEC 34-3:1988 published by the International Electrotechnical Commission (IEC). It supersedes BS 5000-2:1988 which is withdrawn. As a consequence of implementing the European Standard, this British Standard has been renumbered as BS EN 60034-3:1996, and any reference to BS EN 60034-3:1995 shoul
10、d be read as reference to BS EN 60034-3:1996. Editorial corrections to the text of IEC 34-3 have been incorporated at the appropriate places and are indicated by a side line in the margin. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Sta
11、ndards 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 inside front cover, pages i and ii, the EN title page, pages 2 to 14, an inside back cover an
12、d 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. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 14:06:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN S
13、TANDARD NORME EUROPENNE EUROPISCHE NORM EN 60034-3 October 1995 UDC 621.313.322:001.4 ICS 29.160.20 Supersedes HD 53.3 S1:1991 Descriptors: Rotating electrical machines, turbine-type machines, synchronous motors, characteristics, specification English version Rotating electrical machines Part 3: Spe
14、cific requirements for turbine-type synchronous machines (IEC 34-3:1988) Machines lectriques tournantes Partie 3: Rgles spcifiques pour les turbomachines synchrones (CEI 34-3:1988) Drehende elektrische Maschinen Teil 3: Besondere Anforderungen an Dreiphasen-Turbogeneratoren (IEC 34-3:1988) This Euro
15、pean Standard was approved by CENELEC on 1995-09-20. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical reference
16、s concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC membe
17、r into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portuga
18、l, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENEL
19、EC members Ref. No. EN 60034-3:1995 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 14:06:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60034-3:1995 BSI 03-1999 2 Foreword The text of the International Standard IEC 34-3:1988, prepared by SC 2A, Turbine-type generators, of IEC TC 2, Rotat
20、ing machinery, was approved by CENELEC as HD 53.3 S1 on 1990-12-10. This Harmonization Document was submitted to the formal vote for conversion into a European Standard and was approved by CENELEC as EN 60034-3 on 1995-09-20. The following date was fixed: Annexes designated “normative” are part of t
21、he body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Contents Page Foreword2 Section 1. Scope 1Scope3 Section 2. General 2General rules3 3Rated voltage3 4Rated speed3 5Ranges of voltage and frequency3 6Direction of rotation3 7Stator winding3 8Machine
22、rated field current and voltage4 9Machine insulation4 10Insulation against shaft current4 11Overspeed test4 12Critical speeds4 13Capability diagram4 14Overcurrent requirements4 15Sudden short-circuit5 16Short-circuit ratio and direct axis transient and sub-transient reactances5 17Mechanical strength
23、 concerning number of starts for normal generators6 Page Section 3. Air-cooled machines 18Power factor3 19Short-circuit ratio (see also Sub-clause 16.1)6 20Machine cooling6 21Temperature of primary coolant6 22Temperature detectors6 23Air coolers6 Section 4. Hydrogen-cooled or Liquid-cooled machines
24、24Hydrogen pressure in the casing6 25Power factor6 26Short-circuit ratio (see also Sub-clause 16.1)6 27Machine housing and cover plates7 28Stator winding terminals7 29Temperature of primary coolants, temperatures and temperature rises of the machine7 30Altitude7 31Temperature detectors7 32Gas or liq
25、uid coolers7 33Auxiliary system8 Section 5. Turbine-type machines driven by combustion gas turbines 34Service conditions8 35Rating and capabilities9 36Rating plate10 37Temperature tests10 38Operation as a synchronous compensator10 Annex ZA (normative) Normative references to international publicatio
26、ns with their corresponding European publications14 Figure 1 Operation over ranges of voltage and frequency11 Figure 2 Typical capability diagram12 Figure 3 Typical generator capability curves13 latest date by which the EN has to be implemented at national level by publication of an identical nation
27、al standard or by endorsement(dop) 1996-10-01 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 14:06:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60034-3:1995 BSI 03-19993 Section 1. Scope 1 Scope This standard applies to three-phase turbine-type machines, having rated outputs of 10 MVA an
28、d above, used as generators. Those clauses that are appropriate apply to machines used as synchronous motors or compensators. This standard supplements the basic requirements for rotating machines given in IEC Publication 34-1. This standard does not apply to those machines which are excluded from t
29、he scope of IEC Publication 34-1. Section 2 of this standard gives the specific requirements common to all turbine-type machines. Section 3 of this standard specifies further requirement for air-cooled turbine-type machines. Section 4 of this standard specifies additional requirements for hydrogen o
30、r liquid cooled turbine-type machines. Section 5 of this standard gives the specific requirements for turbine-type machines driven by combustion gas-turbines. NOTE 1Specific requirements for both rotating and static exciters are under consideration and it is intended that these will form Section 6 o
31、f Publication 34-3. NOTE 2Tests for determining the efficiency and the quantities of synchronous machines are dealt with in Publications 34-2 and 34-4 respectively. Section 2. General 2 General rules Turbine-type machines shall be in accordance with the basic requirements for rotating machines speci
32、fied in IEC Publication 34-1 unless otherwise specified in this standard. Wherever in this standard there is reference to an agreement, it shall be understood that this is an agreement between the manufacturer and the purchaser. 3 Rated voltage The rated voltage shall be fixed by agreement. 4 Rated
33、speed The rated speed shall be 1 500 rev/min or 3 000 rev/min for 50 Hz machines, and 1 800 rev/min or 3 600 rev/min for 60 Hz machines. 5 Ranges of voltage and frequency Machines shall be capable of continuous rated output at the rated power factor over the ranges of 5 % in voltage and 2 % in frequ
34、ency, as defined by the shaded area of Figure 1. The temperature rise limits in Tables I and II, or the total temperature limits in Table III of IEC Publication 34-1 shall apply at the rated voltage and frequency only. NOTE 1As the operating point moves away from the rated values of voltage and freq
35、uency, the temperature rise or total temperatures may progressively increase. Continuous operation at rated output at certain parts of the boundary of the shaded area causes temperature rises to increase by up to 10 K approximately. Machines will also carry output at rated power factor within the ra
36、nges of 5 % in voltage and + 3 %/ 5 % in frequency, as defined by the outer boundary of Figure 1, but temperature rises will be further increased. NOTE 2Therefore, to minimise the reduction of the machines lifetime due to the effects of temperature or temperature differences, operation outside the s
37、haded area should be limited in extent, duration and frequency of occurrence. The output should be reduced or other corrective measures taken as soon as practicable. If operation over a still wider range of voltage or frequency is required, this should be the subject of an agreement. NOTE 3It is con
38、sidered that overvoltage together with low frequency, or low voltage with overfrequency, are unlikely operating conditions. The former is the condition most likely to increase the temperature rise of the field winding. Figure 1 shows operation in these quadrants restricted to conditions that will ca
39、use the machine and its transformer to be over- or under-fluxed by no more than 5 %. NOTE 4Margins of excitation and of stability will be reduced under some of the operating conditions shown. NOTE 5As the operating frequency moves away from the rated frequency, effects outside the generator may beco
40、me important and need to be considered. As examples: the turbine manufacturer will specify ranges of frequency and corresponding periods during which the turbine can operate; and the ability of auxiliary equipment to operate over a range of voltage and frequency should be considered. 6 Direction of
41、rotation Since the generator has only one direction of rotation, which is determined by the turbine, IEC Publication 34-8 need not be applied. The direction of rotation shall be shown on the machine or on its rating plate, and the time-phase sequence of the stator voltage shall then be indicated by
42、marking the terminals in alphabetical sequence, e.g. U1, V1, W1. 7 Stator winding The stator windings may be either star-connected or delta-connected but, unless specifically stated to the contrary, star connections will be provided. In either case, six winding ends shall be brought out unless other
43、wise agreed. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 14:06:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60034-3:1995 4 BSI 03-1999 8 Machine rated field current and voltage The machine rated field current and voltage are those values needed for the field winding for rated operatin
44、g conditions of apparent power, voltage, frequency, power factor and, if applicable, hydrogen pressure, with the field winding at the operating temperature corresponding to the primary coolant temperature obtained under these conditions when the final coolant is at its maximum specified temperature.
45、 9 Machine insulation 9.1 Insulation class Insulation systems used for the windings shall be of Class B or higher thermal classification. 9.2 Dielectric tests High-voltage tests shall be in accordance with IEC Publication 34-1 except for the test voltage for field windings. These voltages shall be:
46、for rated field voltages up to 500 V: 10 times the rated field voltage, with a minimum of 1 500 V; for rated field voltages above 500 V: 4 000 V + twice the rated field voltage. 10 Insulation against shaft current Suitable precautions shall be taken to prevent harmful flow of shaft current and to ea
47、rth the rotor shaft adequately. Any insulation needed shall preferably be arranged so that it can be measured while the machine is operating. 11 Overspeed test Rotors of turbine-type machines shall be tested at 1.2 times rated speed for 2 min. 12 Critical speeds Critical speeds of the rotor assembly
48、 of the complete set shall not cause unsatisfactory operation within the speed range corresponding to the frequency range agreed in accordance with Clause 5 (see IEC Publication 45). 13 Capability diagram The manufacturer shall supply a capability diagram indicating the limits of operation set by te
49、mperatures or temperature rises and, if appropriate, by steady-state stability. The diagram will be drawn for operation at rated voltage and frequency, and, for a hydrogen-cooled machine, at rated hydrogen pressure. A typical diagram is shown in Figure 2. Its boundaries are set by the following limitations: Curve A represents operation with constant rated field current and therefore with approximately constant temperature rise of the field winding; Curve B represents constant rated stator current and consequently approximately constant temp
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