BS EN 61116-1995 Electromechanical equipment guide for small hydroelectric installations《小型水电站机电设备指南》.pdf

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1、BRITISH STANDARD BS EN 61116:1995 IEC 1116:1992 Electromechanical equipment guide for small hydroelectric installations The European Standard EN61116:1994 has the status of a British StandardBS EN61116:1995 This British Standard, having been prepared under the directionof the Engineering SectorBoard

2、, was publishedunderthe authorityofthe Standards Boardand comes into effect on 15 June1995 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference MCE/15 Draft for comment86/77501 DC ISBN0 580 24211 0 Committees responsible for this BritishStandard The prepa

3、ration of this British Standard was entrusted to Technical Committee MCE/15, Hydraulic turbines, upon which the following bodies were represented: Association of Consulting Engineers Department of Trade and Industry (National Engineering Laboratory) Electricity Supply Industry in England and Wales I

4、nstitution of Civil Engineers Institution of Electrical Engineers North of Scotland Hydro-electric Board Power Generation Association (BEAMA Ltd.) University of Southampton Amendments issued since publication Amd. No. Date CommentsBS EN61116:1995 BSI 01-2000 i Contents Page Committees responsible In

5、side front cover National foreword ii Foreword 2 Text of EN 61116 5 List of references Inside back coverBS EN61116:1995 ii BSI 01-2000 National foreword This British Standard has been prepared by Technical Committee MCE/15 and is the English language version ofEN61116:1994 Electromechanical equipmen

6、t guide for small hydroelectric installations published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical withIEC1116:1992 published by the International Electrotechnical Commission (IEC) with editorial corrections. The editorial corrections are indicated by t

7、he presence of side rules in the margin. For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are referred to: IEC Publication27: Letter symbols to be used in electrical technology IEC Publication617: Graphical symbols for diagrams The symbols and signs co

8、ntained in the present publication have either been taken from IEC Publications27 or617, or have been specifically approved for the purpose of this publication. For general terminology, readers are referred to IEC Publication50: International Electrotechnical Vocabulary (IEV), which is issued in the

9、 form of separate chapters each dealing with a specific field, the General Index being published as a separate booklet. Full details of the IEV will be supplied on request 1) . The terms and definitions contained in the present publication have either been taken from the IEV or have been specificall

10、y approved for the purpose of this publication. Some Sections and Parts ofBS4727 are identical with or technically equivalent to IEC Publication50. All Parts ofBS3939, except forPart1, are identical with IEC Publication617. EN61116 was produced as a result of international discussion in which the Un

11、itedKingdom took an active part. 1) Available from BSI, Customer Services, Sales Department,389 Chiswick High Road, London W44AL. Cross-references Publication referred to Corresponding British Standard BS4999 General requirements for rotating electrical machines IEC 34-2:1972 (HD 53.2 S1:1982) IEC 3

12、4-2A:1974 Part 102:1987 Methods for determining losses and efficiency from tests (excluding machines for traction vehicles) IEC 41:1991 (EN 60041:1994) BS EN60041:1995 aDetermination of the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines from field acceptance tests BS 47

13、27 Glossary of electromechanical, power, telecommunication, electronics, lighting and colour terms Part 2 Terms particular to power engineering IEC 50(602):1983 Group 11:1986 Generation, transmission and distribution of electricity terminology IEC 70:1967 BS1650:1971 Specification for capacitors for

14、 connection to power-frequency systems IEC 129:1984 (EN 60129:1994) BS5253:1990 Specification for alternating current disconnectors and earthing switches a In preparation.BS EN61116:1995 BSI 01-2000 iii A British Standard does not purport to include all the necessary provisions of a contract. Users

15、of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. IEC 185 (mod):1987 (HD 553 S2:1993) BS 7626:1993 Specification for current transformers IEC 186 (mod):1987 (HD 554 S1:1992) BS 7625:1993 S

16、pecification for voltage transformers IEC 545:1976 BS 5671:1979 Guide for commissioning, operation and maintenance of hydraulic turbines Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, theEN title page, pages 2 to 50, an inside back cover and a back cove

17、r. 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 blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN61116 September 1994 ICS29.160.40 Descriptors: Hydraulic machine, hydra

18、ulic turbomachine, turbine, power station, setting up, conditions for operation, specification of equipment, delivery, maintenance English version Electromechanical equipment guide for small hydroelectricinstallations (IEC 1116:1992) Guide pour l quipement lectromcanique despetits amnagements hydro-

19、lectriques (CEI1116:1992) Anleitung fr die elektromechanische Ausrstung von kleinen Wasserkraftanlagen (IEC1116:1992) This European Standard was approved by CENELEC on1994-03-08. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving t

20、his European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references 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 versi

21、ons (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member 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

22、Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches K

23、omitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1994 Copyright reserved to CENELEC members Ref. No. EN61116:1994 EEN61116:1994 BSI 01-2000 2 Foreword The CENELEC questionnaire procedure, performed for finding out whether or not the InternationalStandard I

24、EC1116:1992 could be accepted without textural changes, has shown that no common modifications were necessary for the acceptance as European Standard. The reference document was submitted to the CENELEC members for formal vote and was approved by CENELEC asEN61116 on1994-03-08. The following dates w

25、ere fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given only for information. In this standard,Annex ZA is normative and Annex A is informative. Contents Page Section 1. General 1.1 Scope and object 5 1.2 Normative references 5 1.3 N

26、omenclature 6 1.4 Methodology 6 Section 2. Description of installation and operating conditions of power station 2.1 Site conditions 6 2.2 Hydraulic conditions for plant and design criteria for the units 7 2.3 Electrical conditions for plant operation 8 2.3.1 The plant is intended to operate in isol

27、ated network 8 2.3.2 The plant is intended to operate in parallel with a grid which imposes the frequency 9 2.3.3 Energy transport and distribution 9 2.4 Types of regulation and modes of operation 9 2.4.1 Frequency regulation 9 2.4.2 Level control 9 2.4.3 Flow regulation 9 2.4.4 Simplified governing

28、 9 2.5 Automation, telemetry, remote control, alarms 9 Section 3. Equipment specifications 3.1 Technical requirements 10 3.2 Limits of the supply 10 3.2.1 For the hydraulic system 10 3.2.2 For the electric system 10 3.2.3 Elements not normally included in the supply 10 3.3 Specifications of the elem

29、ents of the plant 10 3.3.1 Trashrack and rack cleaner 10 3.3.2 Water-level control 10 3.3.3 Discharge closure devices (seeFigure 7) 11 3.3.4 Penstock 11 3.3.5 Turbine (seeFigure 8) 12 3.3.6 Generator 14 3.3.7 Automatic control system 16 3.3.8 Main transformers (reference can be made toIEC76) 16 3.3.

30、9 Auxiliary equipment 16 3.3.10 Spare parts and special tools 18 latest date of publication of an identical national standard (dop) 1995-03-15 latest date of withdrawal of conflicting national standards (dow) 1995-03-15EN61116:1994 BSI 01-2000 3 Page 3.3.11 Mechanical handling 18 3.3.12 Corrosion pr

31、otection 18 3.4 Guarantees 18 3.4.1 General 18 3.4.2 Discharge closure devices 19 3.4.3 Turbine 19 3.4.4 Generator 19 3.4.5 Governor 19 3.4.6 Speed increaser 20 3.4.7 Comments concerning the complete generating set 20 3.4.8 Main transformer 20 3.5 General conditions for tender enquiries and comparis

32、on of tenders 20 3.5.1 Instructions to tenderers 20 3.5.2 General conditions of contract 20 3.5.3 Technical comparison of tenders 21 Section 4. Inspection, acceptance, operation and maintenance 4.1 Approval of the design and inspection of the work 21 4.1.1 Approval of design documents 21 4.1.2 Inspe

33、ction of materials and sub-assemblies 21 4.1.3 Inspection at manufacturers works 22 4.1.4 Delivery 22 4.1.5 Assembly at site 22 4.2 Commissioning 23 4.2.1 Preliminary checks before watering-up 23 4.2.2 Watering-up 23 4.2.3 Unit rotation 23 4.2.4 Preliminary checks and electrical load tests 24 4.3 Op

34、eration 24 4.3.1 Probationary period 24 4.3.2 Guarantee period 24 4.3.3 Normal operation 26 4.4 Training of personnel 26 4.5 Checking and maintenance 26 Annex A (informative) Definitions and nomenclature 28 Annex ZA (normative) Other international publications quoted in this standard with thereferen

35、ces of the relevant European publications 49 Figure 1 Example of sequence of events 37 Page Figure 2 Flow duration curve (showing river flow and plant flow) 38 Figure 3a Run-of-river power station 39 Figure 3b Run of plant in a bypass channel 39 Figure 4a High and medium head plant arrangement 40 Fi

36、gure 4b Low head station (bulb unit and rim generator unit) 41 Figure 4c Low head station (vertical unit and unit with elbowed tail-race) 42 Figure 4d Low head station (siphon unit and unit with elbowed penstock) 43 Figure 5 Turbine operating regimes (approximate) 44 Figure 6a Single line diagram As

37、ynchronous generator 45 Figure 6b Single line diagram Synchronous generator 46 Figure 7 Hydraulic closure devices (examples) 47 Figure 8 Schematic representation of a hydraulic machine 48 Table 1 Examples of checks during normal operation 34 Table 2 Elements of bid evaluation 354 blankEN61116:1994 B

38、SI 01-2000 5 Section 1. General 1.1 Scope and object This International Standard is used as a guide that applies to hydroelectric installations with units having power outputs less than5MW and turbines with nominal runner diameters less than3m. These figures do not represent absolute limits. This gu

39、ide deals only with the direct relations between the purchaser or the consulting engineer and the supplier. It does not deal with civil works, administrative conditions or commercial conditions. This guide is intended to be used by all concerned in the installation of electromechanical equipment for

40、 small hydroelectric plants. This guide, based essentially on practical information, aims specifically at supplying the purchaser of the equipment with information which will assist him with the following: preparation of the call for tenders; evaluation of the tenders; contact with the supplier duri

41、ng the design and manufacture of equipment; quality control during the manufacture and shop-testing; follow-up of site erection; commissioning; acceptance tests; operation and maintenance. The guide comprises the following: a) general requirements for the electromechanical equipment of small hydroel

42、ectric installations; b) technical specifications for the electromechanical equipment, excluding its dimensioning and standardization; c) requirements for acceptance, operation and maintenance. Bearing in mind the type of installation considered, the documents shall be as simple as possible but must

43、 satisfactorily define the particular operation conditions. Over-specification is harmful to the economy of the project. 1.2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of pub

44、lication of this standard, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and

45、ISO maintain registers of currently valid International Standards. IEC34-1:1983, Rotating electrical machines Part1: Rating and performance. IEC34-2:1972, Rotating electrical machines Part2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines

46、 for traction vehicles). IEC34-2A:1974, First supplement: Measurement of losses by the calorimetric method. IEC34-5:1991, Rotating electrical machines Part5: Classification of degrees of protection provided by enclosures of rotating electrical machines (IP Code). IEC41:1991, Field acceptance tests t

47、o determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines. IEC50(602):1983, International Electrotechnical Vocabulary (IEV), Chapter602:Generation, transmission and distribution of electricity Generation. IEC56:1987, High-voltage alternating-current circuit-breaker

48、s. IEC70:1967, Power capacitors. IEC76-1:1976, Power transformers Part1: General. IEC129:1984, Alternating current disconnectors (isolators) and earthing switches. IEC185:1987, Current transformers. EN61116:1994 6 BSI 01-2000 IEC186:1987, Voltage transformers. IEC193:1965, International code for mod

49、el acceptance tests of hydraulic turbines. Amendment No.1(1977) IEC193A:1972, First supplement to IEC193(1965). IEC308:1970, International code for testing of speed governing systems for hydraulic turbines. IEC545:1976, Guide for commissioning, operation and maintenance of hydraulic turbines. IEC609:1978, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pump-turbines. Considering the scope of this guide, it does not cover the initial stage of investigations, that is to say