SIST EN IEC 63132-5:2023
(Main)Guide for installation procedures and tolerances of hydroelectric machines - Part 5: Bulb turbines and generators (IEC 63132-5:2023)
Guide for installation procedures and tolerances of hydroelectric machines - Part 5: Bulb turbines and generators (IEC 63132-5:2023)
The purpose of this guide is to establish, in a general way, suitable procedures and tolerances for the installation of bulb turbine and generator. This guide presents a typical assembly and whenever the words "turbine" and "generator" are used in this part, it refers to bulb turbine and generator. There are many possible ways to assemble a unit. The size of the machine, the design of the machine, the layout of the powerhouse, the sequence of concreting or the delivery schedule of the components are some of the elements that could result in additional steps, or the elimination of some steps and/or assembly sequences.
It is understood that a publication of this type will be binding only if, and to the extent that, both contracting parties have agreed upon it.
The guide excludes matters of purely commercial interest, except those inextricably bound up with the conduct of installation. It also excluded to specifications of the civil works but this aspect of the work should be taken into consideration during the assembly of the units.
Wherever the guide specifies that documents, drawings or information is supplied by a manufacturer (or by manufacturers), each individual manufacturer will furnish the appropriate information for their own supply only.
Leitfaden für Installations-Prozeduren und -Toleranzen von hydroelektrischen Maschinen - Teil 5 (IEC 63132-5:2023)
Lignes directrices des procédures et tolérances d’installation des machines hydroélectriques - Partie 5: Turbines bulbes et alternateurs (IEC 63132-5:2023)
IEC 63132-5:2023 doit établir, de manière générale, des procédures et des tolérances appropriées pour l’installation de turbines et de générateurs hydroélectriques. Ce guide présente un assemblage typique. Il faut reconnaître qu’il existe de nombreuses façons possibles d’assembler une unité. La taille des machines, la conception des machines, la disposition de la centrale et le calendrier de livraison des composants sont quelques-uns des éléments qui pourraient entraîner des étapes supplémentaires, l’élimination de certaines étapes et / ou des séquences d’assemblage.
Navodila za postopke vgradnje in tolerance hidroelektričnih strojev - 5. del: Cevne (Kaplanove) turbine in generatorji (IEC 63132-5:2023)
Namen teh navodil je na splošno vzpostaviti ustrezne postopke in dovoljene tolerance za vgradnjo cevnih (Kaplanovih) turbin in generatorjev. V navodilih je predstavljen tipični sestav, izraza »turbina« in »generator« pa se povsod navezujeta na cevno (Kaplanovo) turbino in generator. Enoto je mogoče sestaviti na več načinov. Velikost in zasnova stroja, postavitev elektrarne, zaporedje betoniranja ter razpored dobave komponent so nekateri od elementov, ki lahko zahtevajo dodatne korake ali odpravo nekaterih postopkov in/ali korakov sestavljanja.
Publikacija te vrste je zavezujoča le, če in v obsegu, v katerem jo potrdita obe pogodbenici.
Navodila ne zajemajo izključno komercialnih interesov, razen tiste, ki so neločljivo povezani z izvajanjem vgradnje. Prav tako niso zajete specifikacije gradbenih del, vendar je priporočljivo ta vidik del upoštevati pri sestavljanju enot.
Če je v navodilih navedeno, da dokumente, skice ali informacije zagotovi proizvajalec (ali proizvajalci), bo vsak posamezni proizvajalec predložil samo ustrezne informacije za lastno dobavo.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 63132-5:2023
01-julij-2023
Navodila za postopke vgradnje in tolerance hidroelektričnih strojev - 5. del: Cevne
(Kaplanove) turbine in generatorji (IEC 63132-5:2023)
Guide for installation procedures and tolerances of hydroelectric machines - Part 5: Bulb
turbines and generators (IEC 63132-5:2023)
Leitfaden für Installations-Prozeduren und -Toleranzen von hydroelektrischen Maschinen
- Teil 5 (IEC 63132-5:2023)
Lignes directrices des procédures et tolérances d’installation des machines
hydroélectriques - Partie 5: Turbines bulbes et alternateurs (IEC 63132-5:2023)
Ta slovenski standard je istoveten z: EN IEC 63132-5:2023
ICS:
27.140 Vodna energija Hydraulic energy engineering
SIST EN IEC 63132-5:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 63132-5:2023
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SIST EN IEC 63132-5:2023
EUROPEAN STANDARD EN IEC 63132-5
NORME EUROPÉENNE
EUROPÄISCHE NORM May 2023
ICS 27.140
English Version
Guidance for installation procedures and tolerances of
hydroelectric machines - Part 5: Bulb turbines and generators
(IEC 63132-5:2023)
Lignes directrices des procédures et tolérances Leitfaden für Installations-Prozeduren und -Toleranzen von
d'installation des machines hydroélectriques - 5: Turbines et hydroelektrischen Maschinen - Teil 5
alternateurs de type bulbe (IEC 63132-5:2023)
(IEC 63132-5:2023)
This European Standard was approved by CENELEC on 2023-05-19. 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 references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre 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 member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63132-5:2023 E
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SIST EN IEC 63132-5:2023
EN IEC 63132-5:2023 (E)
European foreword
The text of document 4/456/FDIS, future edition 1 of IEC 63132-5, prepared by IEC/TC 4 "Hydraulic
turbines" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 63132-5:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-02-19
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-05-19
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 63132-5:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 63132-1 NOTE Approved as EN IEC 63132-1
IEC 63132-2 NOTE Approved as EN IEC 63132-2
2
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SIST EN IEC 63132-5:2023
IEC 63132-5
®
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guidance for installation procedures and tolerances of hydroelectric machines –
Part 5: Bulb turbines and generators
Lignes directrices des procédures et tolérances d’installation des machines
hydroélectriques –
Partie 5: Turbines et alternateurs de type bulbe
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.140 ISBN 978-2-8322-6742-4
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 63132-5:2023
– 2 – IEC 63132-5:2023 IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Installation flowchart . 6
4.1 Turbine and generator embedded parts. 6
4.2 Turbine and generator mechanical parts . 7
5 Steps . 9
5.1 Turbine and generator embedded parts. 9
5.1.1 Step 1: Benchmarks set-up . 9
5.1.2 Step 2: Powerhouse primary stage concrete with anchor plates and
embedded pipes . 9
5.1.3 Step 3: Anchor plates, embedded pipes and workspace verification . 9
5.1.4 Step 4: Handing over to installation . 10
5.1.5 Step 5: Draft tube installation. 10
5.1.6 Step 6: Secondary embedded pipes installation around the draft tube . 12
5.1.7 Step 7: Handing over to concreting phase. 12
5.1.8 Step 8: Draft tube embedment . 13
5.1.9 Step 9: Concrete voids testing . 13
5.1.10 Step 10: Draft tube grout injection . 14
5.1.11 Step 11: Handing over to installation . 14
5.1.12 Step 12: Draft tube dimensional inspection after embedment . 14
5.1.13 Step 13: Installation of turbine housing . 15
5.1.14 Step 14: Installation of pier nose liner . 17
5.1.15 Step 15: Installation of generator foundation base . 17
5.1.16 Step 16: Installation of generator hatch cover frame . 18
5.1.17 Step 17: Secondary embedded pipes installation around the turbine
housing. 18
5.1.18 Step 18: Handing over to concreting phase . 18
5.1.19 Step 19: Embedment of turbine housing, pier nose, generator
foundation base plate and hatch cover frame . 18
5.1.20 Step 20: Handing over to installation . 19
5.1.21 Step 21: Corrosion protection for embedded parts . 19
5.1.22 Step 22: Turbine and generator embedded parts complete . 19
5.1.23 Step 23: Turbine and generator mechanical parts installation . 19
5.2 Turbine and generator mechanical parts . 20
5.2.1 Step 1: Turbine and generator embedded parts complete . 20
5.2.2 Step 2: Handing over to installation . 20
5.2.3 Step 3: Dimensional inspection of turbine housing after embedment . 20
5.2.4 Step 4-1: Distributor assembly . 20
5.2.5 Step 4: Distributor installation . 21
5.2.6 Step 5: Lowering and storing of lower half of discharge ring . 21
5.2.7 Step 6-1: Pre-assembly of shaft and bearings . 21
5.2.8 Step 6: Shaft installation . 21
5.2.9 Step 7: Shaft free . 22
5.2.10 Step 8: Combined bearing installation . 23
5.2.11 Step 9: Guide vane servomotor and counterweight installation . 23
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SIST EN IEC 63132-5:2023
IEC 63132-5:2023 IEC 2023 – 3 –
5.2.12 Step 10-1: Turbine runner assembly . 24
5.2.13 Step 10: Runner installation . 24
5.2.14 Step 11: Guide vane apparatus final adjustment . 25
5.2.15 Step 12: Lowering and storing of bulb nose . 26
5.2.16 Step 13-1: Rotor assembly . 26
5.2.17 Step 13: Rotor installation . 27
5.2.18 Step 14: Discharge ring installation . 27
5.2.19 Step 15: Shaft alignment . 28
5.2.20 Step 16-1: Stator assembly . 29
5.2.21 Step 16: Stator installation . 29
5.2.22 Step 17: Shaft seal installation . 30
5.2.23 Step 18: Runner blade operating pipes installation . 30
5.2.24 Step 19: Runner oil supply head and extension shaft installation . 30
5.2.25 Step 20: Runner cone installation . 31
5.2.26 Step 21: Bulb nose installation . 31
5.2.27 Step 22: Generator supports installation . 31
5.2.28 Step 23: Access shaft installation and hatch cover closing . 31
5.2.29 Step 24: Remaining turbine parts installation completion . 32
5.2.30 Step 25: Final installation and cabling generator . 32
5.2.31 Step 26: Generator auxiliary systems installation . 32
5.2.32 Step 27: Turbine auxiliary systems installation . 33
5.2.33 Step 28: Cleaning, painting and inspection before initial tests . 33
5.2.34 Step 29: Turbine and generator mechanical parts complete . 33
5.2.35 Step 30: Commissioning . 33
Bibliography . 34
Figure 1 – Generic installation flowchart – Bulb turbine and generator embedded parts . 7
Figure 2 – Generic installation flowchart – Bulb turbine and generator mechanical parts . 8
Figure 3 – Draft tube liner installation . 12
Figure 4 – Draft tube liner embedment plan . 13
Figure 5 – Radial tilting of turbine housing flange. 16
Figure 6 – Turbine housing installation . 17
Figure 7 – Shaft free . 23
Figure 8 – Guide vane apparatus final adjustment . 26
Figure 9 – Discharge ring installation . 28
Table 1 – Draft tube installation tolerances . 11
Table 2 – Turbine housing installation tolerances . 15
Table 3 – Shaft free verifications. 22
Table 4 – Guide vane apparatus adjustment tolerances . 25
Table 5 – Discharge ring measurement . 28
Table 6 – Stator installation measurement . 29
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SIST EN IEC 63132-5:2023
– 4 – IEC 63132-5:2023 IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GUIDANCE FOR INSTALLATION PROCEDURES AND
TOLERANCES OF HYDROELECTRIC MACHINES –
Part 5: Bulb turbines and generators
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 63132-5 has been prepared by IEC technical committee 4: Hydraulic turbines. It is an
International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
4/456/FDIS 4/462/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
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SIST EN IEC 63132-5:2023
IEC 63132-5:2023 IEC 2023 – 5 –
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63132 series, published under the general title Guidance for
installation procedures and tolerances of hydroelectric machines, can be found on the IEC
website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
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SIST EN IEC 63132-5:2023
– 6 – IEC 63132-5:2023 IEC 2023
GUIDANCE FOR INSTALLATION PROCEDURES AND
TOLERANCES OF HYDROELECTRIC MACHINES –
Part 5: Bulb turbines and generators
1 Scope
The purpose of this document is to establish, in a general way, suitable procedures and
tolerances for the installation of bulb turbine and generator. This document presents a typical
assembly and whenever the words “turbine” and “generator” are used in this part, it refers to
bulb turbine and generator. There are many possible ways to assemble a unit. The size of the
machine, the design of the machine, the layout of the powerhouse, the sequence of concreting
or the delivery schedule of the components are some of the elements that could result in
additional steps, or the elimination of some steps and/or assembly sequences.
It is understood that a publication of this type will be binding only if, and to the extent that, both
contracting parties have agreed upon it.
The document excludes matters of purely commercial interest, except those inextricably bound
up with the conduct of installation. It also excludes specifications of the civil works but this
aspect of the work should be taken into consideration during the assembly of the units.
Wherever the document specifies that documents, drawings or information are supplied by a
manufacturer (or by manufacturers), each individual manufacturer will furnish the appropriate
information for their own supply only.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 Installation flowchart
4.1 Turbine and generator embedded parts
Figure 1 shows a generic installation flowchart for bulb turbine and generator embedded parts.
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SIST EN IEC 63132-5:2023
IEC 63132-5:2023 IEC 2023 – 7 –
Figure 1 – Generic installation flowchart –
Bulb turbine and generator embedded parts
4.2 Turbine and generator mechanical parts
Figure 2 shows generic installation flowchart for bulb turbine and generator mechanical parts.
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SIST EN IEC 63132-5:2023
– 8 – IEC 63132-5:2023 IEC 2023
Figure 2 – Generic installation flowchart – Bulb turbine and generator mechanical parts
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SIST EN IEC 63132-5:2023
IEC 63132-5:2023 IEC 2023 – 9 –
5 Steps
5.1 Turbine and generator embedded parts
5.1.1 Step 1: Benchmarks set-up
a) Objective of work in the step
– Set-up benchmarks to be used for starting proper installation of the turbine and
generator.
b) Explanation of work
– Sufficient benchmarks should be provided to establish the unit centreline, axis and
elevation.
c) Recommendations
N/A
d) Additional information
Depending on the project delivery system (EPC, design build, etc.), the benchmarks or their
reference points could be provided by the owner, civil contractor, etc. Whoever provides the
benchmarks or reference points is responsible to make sure they are correct.
The benchmark type (x, y, z coordinates, definition of the axis and elevations, etc.) should be
agreed to before the beginning of the work.
The turbine supplier should take care to transfer the necessary benchmarks throughout the
erection and/or concreting processes so that the benchmarks remain accessible as the unit is
assembled.
5.1.2 Step 2: Powerhouse primary stage concrete with anchor plates and embedded
pipes
a) Objective of work in the step
– Install primary embedded pipes, anchor plates and steel foundations in the correct
locations.
b) Explanation of work
– Install the primary embedded pipes and supporting systems.
– Install the foundation components of the draft tube liner, servomotor, stay columns and
pier nose.
c) Recommendations
Different designs require different tolerances; therefore, it is recommended that the turbine
supplier should provide the tolerances. It is considered as a best practice to perform:
– Non-destructive tests as applicable (i.e. visual inspections, pressure tests of the piping,
test of welding seams).
– Measures to prevent the concrete from entering the pipes or contaminating the machined
surfaces of foundations during concreting.
d) Additional information
The contract should define which party is responsible to install the primary embedded pipes
and/or the foundation components of draft tube liner, servomotor, stay columns and pier nose.
5.1.3 Step 3: Anchor plates, embedded pipes and workspace verification
a) Objective of work in the step
– Confirm that the foundation components of draft tube liner, servomotor, stay columns
and pier nose have been installed in the correct place. Verify that the shape of concreted
area is per the design and there is sufficient access to the workplace.
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SIST EN IEC 63132-5:2023
– 10 – IEC 63132-5:2023 IEC 2023
b) Explanation of work
– Ensure that the dimensions of the shape of concreted area match the design.
– Ensure that there will be no interference between the concrete structures, the reinforcing
steels, the scaffolding, etc. and the foundation components of draft tube liner,
servomotor, stay columns and pier nose.
– Once the workplace is acceptable, the turbine and generator installation work can start.
c) Recommendations
It is recommended to check that the foundation components of the draft tube liner,
servomotor, stay columns and pier nose and the primary embedded pipes were installed
within the tolerances provided by the turbine and generator supplier.
d) Additional information
N/A
5.1.4 Step 4: Handing over to installation
a) Objective of work in the step
– The work space is transferred to the turbine and generator supplier.
b) Explanation of work
– There is normally an official transfer of the working area from the civil contractor to the
turbine and generator supplier. The transfer is typically documented with some type of
signed form.
c) Recommendations
N/A
d) Additional information
N/A
5.1.5 Step 5: Draft tube installation
a) Objective of work in the step
– Install the draft tube (see Figure 3).
b) Explanation of work
– Transportation of the draft tube flange and the draft tube liner segments to the foundation
and placing them on the foundation plates.
– Tack-welding of the draft tube flange and the draft tube liner segments.
– Inspection of the alignment and principal dimensions of the draft tube flange and the
draft tube liner before welding.
– Welding of the draft tube flange and the draft tube liner.
– Inspection of alignment and measurement of principal dimensions of the draft tube flange
and the draft tube liner after welding.
c) Recommendations
The items showed in Table 1 should be checked.
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SIST EN IEC 63132-5:2023
IEC 63132-5:2023 IEC 2023 – 11 –
Table 1 – Draft tube installation tolerances
Item Tolerance Minimum number of Measurement location
measurements
Difference between the
outlet end of the draft
To be determined by
Junction tube liner and the inlet of
8
turbine supplier
the concrete portion of
the draft tube.
2 for each side
To be determined by Elevation of inlet and
Elevation
turbine supplier outlet
(Left and right)
8 when RD < 4m
To be determined by
Flatness Flatness of inlet flange
turbine supplier
16 when RD ≥ 4m
2
To be determined by Vertical inclination of inlet
Vertical Inclination
turbine supplier flange
(Top and bottom)
2
To be determined by Horizontal inclination of
Horizontal Inclination
turbine supplier inlet flange
(Left and right)
To be determined by
Orientation 1 Orientation of inlet flange
turbine supplier
Concentricity of both inlet
To be determined by 4 at both inlet flange and
Concentricity flange and outlet end to
turbine supplier outlet end
centre line
To be determined by 8 at both inlet flange and Circularity of both inlet
Circularity
turbine supplier outlet end flange and outlet end
Axial position of inlet
To be determined by
Axial position 1 flange to turbine centre
turbine supplier
line
– Non-destructive tests of the welding seams.
– Proper fixation of the draft tube.
d) Additional information
The sequence for the installation of the draft tube flange and the draft tube liner should be
provided by the turbine supplier.
If the downstream concrete portion of the draft tube cannot be completed prior to the
installation of the draft tube liner, the outlet position of the draft tube liner cannot be
determined by the junction method. Therefore, another method will be required to position
the outlet of the draft tube liner. The downstream concrete portion would then be adapted
to the draft tube liner outlet.
Adequate supports or bracing are required to prevent the draft tube flange and the draft
tube liner from moving or changing shape during placing of the secondary concrete.
The dra
...
SLOVENSKI STANDARD
oSIST prEN IEC 63132-5:2022
01-maj-2022
Navodila za postopke vgradnje in tolerance hidroelektričnih strojev - 5. del:
Turbine z žarnicami in generatorji
Guide for installation procedures and tolerances of hydroelectric machines - Part 5: Bulb
turbines and generators
Lignes directrices des procédures et tolérances d’installation des machines
hydroélectriques - Partie 5: Turbines bulbes et alternateurs
Ta slovenski standard je istoveten z: prEN IEC 63132-5:2022
ICS:
27.140 Vodna energija Hydraulic energy engineering
oSIST prEN IEC 63132-5:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 63132-5:2022
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oSIST prEN IEC 63132-5:2022
4/432/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63132-5 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-03-18 2022-06-10
SUPERSEDES DOCUMENTS:
4/387/NP, 4/401A/RVN
IEC TC 4 : HYDRAULIC TURBINES
SECRETARIAT: SECRETARY:
Canada Mrs Christine Geraghty
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
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TITLE:
Guide for installation procedures and tolerances of hydroelectric machines - Part 5: Bulb
turbines and generators
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
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IEC CDV 63132-5/Ed1 © IEC 2022 – 2 – 4/432/CDV
1
2
3
4
5 DRAFT
6
7
8
9
10
11
12
13
14
15 GUIDANCE FOR INSTALLATION PROCEDURES AND
16 TOLERANCES OF HYDROELECTRIC MACHINES
17
18
19 Part 5: Bulb turbines and generators
20
21
22
23
24
25
26
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27 CONTENTS
28
29 FOREWORD
30 1 Scope . 7
31 2 Normative reference . 7
32 3 Terms and definition . 7
33 4 Installation flowchart . 8
34 4.1 Turbine and generator embedded parts . 8
35 4.2 Turbine and generator mechanical parts . 9
36 5 Steps . 10
37 5.1 Turbine and generator embedded parts . 10
38 5.1.1 Step 1: Benchmarks set-up . 10
39 5.1.2 Step 2: Powerhouse primary stage concrete with anchor plates and
40 embedded pipes . 10
41 5.1.3 Step 3: Anchor plates, embedded pipes and workspace verification . 11
42 5.1.4 Step 4: Handing over to installation . 11
43 5.1.5 Step 5: Draft tube installation . 11
44 5.1.6 Step 6: Secondary embedded pipes installation around the draft tube . 13
45 5.1.7 Step 7: Handing over to concreting phase . 13
46 5.1.8 Step 8: Draft tube embedment . 14
47 5.1.9 Step 9: Concrete voids testing . 15
48 5.1.10 Step 10: Draft tube grout injection . 15
49 5.1.11 Step 11: Handing over to installation . 15
50 5.1.12 Step 12: Draft tube dimensional inspection after embedment . 16
51 5.1.13 Step 13: Installation of turbine housing . 16
52 5.1.14 Step 14: Installation of pier nose liner . 18
53 5.1.15 Step 15: Installation of generator foundation base . 18
54 5.1.16 Step 16: Installation of generator hatch cover frame . 19
55 5.1.17 Step 17: Secondary embedded pipes installation around the turbine
56 housing . 19
57 5.1.18 Step 18: Handing over to concreting phase . 19
58 5.1.19 Step 19: Embedment of turbine housing, pier nose, generator
59 foundation base plate and hatch cover frame . 20
60 5.1.20 Step 20: Handing over to installation . 20
61 5.1.21 Step 21: Corrosion protection for embedded parts . 21
62 5.1.22 Step 22: Turbine and generator embedded parts complete . 21
63 5.1.23 Step 23: Turbine and generator mechanical parts Installation . 21
64 5.2 Turbine and generator mechanical parts . 22
65 5.2.1 Step 1: Turbine and generator embedded parts complete . 22
66 5.2.2 Step 2: Handing over to installation . 22
67 5.2.3 Step 3: Dimensional inspection of turbine housing after embedment . 22
68 5.2.4 Step 4-1: Distributor assembly . 22
69 5.2.5 Step 4: Distributor installation . 23
70 5.2.6 Step 5: Lowering and storing of lower half of discharge ring . 23
71 5.2.7 Step 6-1: Pre-assembly of shaft and bearings . 23
72 5.2.8 Step 6: Shaft installation . 24
73 5.2.9 Step 7: Shaft Free . 24
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74 5.2.10 Step 8: Combined bearing installation . 25
75 5.2.11 Step 9: Guide vane servomotor and counterweight installation . 25
76 5.2.12 Step 10-1: Turbine runner assembly . 26
77 5.2.13 Step 10: Runner installation . 26
78 5.2.14 Step 11: Guide vane apparatus final adjustment . 27
79 5.2.15 Step 12: Lowering and storing of bulb nose . 28
80 5.2.16 Step 13-1: Rotor assembly . 28
81 5.2.17 Step 13: Rotor installation . 29
82 5.2.18 Step 14: Discharge ring installation . 29
83 5.2.19 Step 15: Shaft alignment . 31
84 5.2.20 Step 16-1: Stator assembly. 31
85 5.2.21 Step 16: Stator installation . 32
86 5.2.22 Step 17: Shaft seal installation . 32
87 5.2.23 Step 18: Runner blade operating pipes installation . 33
88 5.2.24 Step 19: Runner oil supply head and extension shaft installation . 33
89 5.2.25 Step 20: Runner cone installation . 33
90 5.2.26 Step 21: Bulb nose installation . 34
91 5.2.27 Step 22: Generator supports installation . 34
92 5.2.28 Step 23: Access shaft installation and hatch cover closing . 34
93 5.2.29 Step 24: Remaining turbine parts installation completion . 35
94 5.2.30 Step 25: Final installation and cabling generator. 35
95 5.2.31 Step 26: Generator auxiliary systems installation . 35
96 5.2.32 Step 27: Turbine auxiliary systems installation . 35
97 5.2.33 Step 28: Cleaning, painting and inspection before initial tests . 36
98 5.2.34 Step 29: Turbine and generator mechanical parts complete . 36
99 5.2.35 Step 30: Commissioning . 36
100 Bibliography . 36
101
102
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103 INTERNATIONAL ELECTROTECHNICAL COMMISSION
104 ____________
105
106 GUIDANCE FOR INSTALLATION PROCEDURES AND TOLERANCES OF
107 HYDROELECTRIC MACHINES
108
109 Part 5: BULB TURBINES AND GENERATORS
110
111 FOREWORD
112 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
113 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
114 international co-operation on all questions concerning standardization in the electrical and electronic fields. To
115 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
116 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
117 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
118 in the subject dealt with may participate in this preparatory work. International, governmental and non-
119 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
120 with the International Organization for Standardization (ISO) in accordance with conditions determined by
121 agreement between the two organizations.
122 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
123 consensus of opinion on the relevant subjects since each technical committee has representation from all
124 interested IEC National Committees.
125 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
126 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
127 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
128 misinterpretation by any end user.
129 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
130 transparently to the maximum extent possible in their national and regional publications. Any divergence
131 between any IEC Publication and the corresponding national or regional publication shall be c learly indicated in
132 the latter.
133 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
134 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
135 services carried out by independent certification bodies.
136 6) All users should ensure that they have the latest edition of this publication.
137 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
138 members of its technical committees and IEC National Committees for any personal injury, property damage or
139 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
140 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
141 Publications.
142 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
143 indispensable for the correct application of this publication.
144 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
145 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
146 This Guide has been prepared by IEC technical committee No.4: Hydraulic turbines.XX:
147 The text of this guide is based on the following documents:
FDIS Report on voting
XX/XX/FDIS XX/XX/RVD
148
149 Full information on the voting for the approval of this guide can be found in the report on
150 voting indicated in the above table.
151 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
152 A list of all parts in the IEC 63132 series, published under the general title Guidance for
153 installation procedures and tolerances of hydroelectric machines, can be found on the IEC
154 website.
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155 The committee has decided that the contents of this publication will remain unchanged until
156 the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
157 related to the specific publication. At this date, the publication will be
158
159 • reconfirmed,
160 • withdrawn,
161 • replaced by a revised edition, or
162 • amended.
163
164 IMPORTANT – The “colour inside” logo on the cover page of this publication indicates that it
165 contains colours which are considered to be useful for the correct understanding of its content
166
167
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168 GUIDE FOR INSTALLATION PROCEDURES AND TOLERANCES OF
169 HYDROELECTRIC MACHINES-
170
171 Part 5: Bulb turbines and generators
172
173 1 Scope
174 The purpose of this guide is to establish, in a general way, suitable procedures and
175 tolerances for the installation of bulb turbine and generator. This guide presents a typical
176 assembly and whenever the words “turbine” and “generator” are used in this part, it refers to
177 bulb turbine and generator. There are many possible ways to assemble a unit. The size of the
178 machine, the design of the machine, the layout of the powerhouse, the sequence of
179 concreting or the delivery schedule of the components are some of the elements that could
180 result in additional steps, or the elimination of some steps and/or assembly sequences.
181 It is understood that a publication of this type will be binding only if, and to the extent that,
182 both contracting parties have agreed upon it.
183 The guide excludes matters of purely commercial interest, except those inextricably bound up
184 with the conduct of installation. It also excluded to specifications of the civil works but this
185 aspect of the work should be taken into consideration during the assembly of the units.
186 Wherever the guide specifies that documents, drawings or information is supplied by a
187 manufacturer (or by manufacturers), each individual manufacturer will furnish the appropriate
188 information for their own supply only.
189
190 2 Normative reference
191 There are no normative references in this document.
192
193 3 Terms and definition
194 No terms and definitions are listed in this document.
195 ISO and IEC maintain terminological databases for use in standardization at the following
196 addresses:
197 • IEC Electropedia: available at http://www.electropedia.org/
198 • ISO Online browsing platform: available at http://www.iso.org/obp
199
200
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201 4 Installation flowchart
202 4.1 Turbine and generator embedded parts
203 Figure 1 shows generic installation flowchart for bulb turbine and generator embedded parts.
204
205 Figure 1 – Generic installation flowchart – Bulb turbine and generator embedded parts
206
207
208
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209 4.2 Turbine and generator mechanical parts
210 Figure 2 shows generic installation flowchart for bulb turbine and generator mechanical parts.
211
212 Figure 2 – Generic installation flowchart – Bulb turbine and generator mechanical parts
213
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214 5 Steps
215 5.1 Turbine and generator embedded parts
216 5.1.1 Step 1: Benchmarks set-up
217 a) Objective of work in the step
218 – Set-up benchmarks to be used for starting proper installation of the turbine and
219 generator.
220 b) Explanation of work
221 – Sufficient benchmarks should be provided to establish the unit centreline, axis and
222 elevation.
223 c) Recommendations
224 N/A
225 d) Additional Information
226 Depending on the project delivery system (EPC, Design Build, etc.), the benchmarks or their
227 reference points could be provided by the owner, civil contractor, etc. Whoever provides the
228 benchmarks or reference points is responsible to make sure they are correct.
229 The benchmark type (x, y, z coordinates, defining axis and elevations, etc.) should be agreed
230 to prior to the work commencing.
231 The turbine supplier should take care to transfer the necessary benchmarks throughout the
232 erection and/or concreting processes so that the benchmarks remain acces sible as the unit is
233 assembled.
234
235 5.1.2 Step 2: Powerhouse primary stage concrete with anchor plates and embedded
236 pipes
237 a) Objective of work in the step
238 – Install primary embedded pipes, anchor plates and steel foundations in the correct
239 locations.
240 b) Explanation of work
241 – Install the primary embedded pipes and supporting systems.
242 – Install the foundation components of the draft tube liner, servomotor, stay columns and
243 pier nose.
244 c) Recommendations
245 Different designs require different tolerances; therefore, it is recommended that the turbine
246 supplier should provide the tolerances. It is considered as a best practice to perform:
247 – Non-destructive tests as applicable (i.e. Visual inspections, pressure tests of the piping,
248 test of welding seams).
249 – Measures to prevent the concrete from entering the pipes or contaminating the
250 machined surfaces of foundations during concreting.
251 d) Additional Information
252 The contract should define which party is responsible to install the primary embedded pipes
253 and/or the foundation components of draft tube liner, servomotor, stay columns and pier nose .
254
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255 5.1.3 Step 3: Anchor plates, embedded pipes and workspace verification
256 a) Objective of work in the step
257 – Confirm that the foundation components of draft tube liner, servomotor, stay columns
258 and pier nose have been installed in the correct place. Verify that the shape of
259 concreted area is per the design and there is sufficient access to the workplace.
260 b) Explanation of work
261 – Ensure that the dimensions of the shape of concreted area match the design.
262 – Ensure that there will be no interference between the concrete structures, the
263 reinforcing steels, the scaffolding, etc. and the foundation components of draft tube
264 liner, servomotor, stay columns and pier nose.
265 – Once the workplace is acceptable, the turbine and generator installation work can start.
266 c) Recommendations
267 It is recommended to check that the foundation components of the draft tube liner, servomotor,
268 stay columns and pier nose and the primary embedded pipes were installed within the
269 tolerances provided by the turbine and generator supplier.
270 d) Additional Information
271 N/A
272
273 5.1.4 Step 4: Handing over to installation
274 a) Objective of work in the step
275 – The work space is transferred to the turbine and generator supplier.
276 b) Explanation of work
277 – There is normally an official transfer of the working area from the civil contractor to the
278 turbine and generator supplier. The transfer is typically documented with some type of
279 signed form.
280 c) Recommendations
281 N/A
282 d) Additional Information
283 N/A
284
285 5.1.5 Step 5: Draft tube installation
286 a) Objective of work in the step
287 – Install the draft tube (see Figure 3).
288 b) Explanation of work
289 – Transportation of the draft tube flange and the draft tube liner segments to the
290 foundation and placing them on the foundation plates.
291 – Tack-welding of the draft tube flange and the draft tube liner segments.
292 – Inspection of the alignment and principal dimensions of the draft tube flange and the
293 draft tube liner before welding.
294 – Welding of the draft tube flange and the draft tube liner.
295 – Inspection of alignment and measurement of principal dimensions of the draft tube
296 flange and the draft tube liner after welding.
297 c) Recommendations
298 The items showed in Table 1 should be checked.
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299 Table 1 – Draft tube installation tolerances
Minimum No. Of
Item Tolerance Measurement location
measurements
Difference between the outlet end
To be determined by of the draft tube liner and the inlet
Junction 8
turbine supplier of the concrete portion of the draft
tube.
2 for each side
To be determined by
Elevation Elevation of inlet and outlet
turbine supplier
(Left and right)
8 when RD < 4m
To be determined by
Flatness Flatness of inlet flange
turbine supplier
16 when RD>=4m
2
To be determined by
Vertical Inclination Vertical inclination of inlet flange
turbine supplier
(Top and bottom)
2
Horizontal To be determined by
Horizontal inclination of inlet flange
Inclination turbine supplier
(Left and right)
To be determined by
Orientation 1 Orientation of inlet flange
turbine supplier
To be determined by 4 at both inlet flange and Concentricity of both inlet flange
Concentricity
turbine supplier outlet end and outlet end to centre line
To be determined by 8 at both inlet flange and Circularity of both inlet flange and
Circularity
turbine supplier outlet end outlet end
To be determined by Axial position of inlet flange to
Axial position 1
turbine supplier turbine centre line
300 – NDT of the welding seams
301 – Proper fixation of the draft tube.
302 d) Additional Information
303 The sequence for the installation of the draft tube flange and the draft tube liner should be
304 provided by the turbine supplier.
305 If the downstream concrete portion of the draft tube cannot be completed prior to the
306 installation of the draft tube liner, the outlet position of the draft tube liner cannot be
307 determined by the junction method. Therefore, another method will be required to position the
308 outlet of the draft tube liner. The downstream concrete portion would then be adapted to the
309 draft tube liner outlet.
310 Adequate supports or bracing are required to prevent the draft tube flange and the draft tube
311 liner from moving or changing shape during placing of the secondary concrete.
312 The draft tube flange and segments should be checked for any erosion or deformation to be
313 fixed prior to welding/assembly tasks.
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314
Turbine centre
Axial position
Theoretical unit axis Elevation and inclination
Orientation
Concentricity and circularity
Concentricity and circularity
Elevation
Junction between
steel liner and concrete
Flattness
315
316 Figure 3 - Draft tube liner installation
317
318 5.1.6 Step 6: Secondary embedded pipes installation around the draft tube
319 a) Objective of work in the step
320 – Install the secondary embedded pipes.
321 b) Explanation of work
322 – Install the embedded pipes in the draft tube pit prior to concreting.
323 c) Recommendations
324 The following items should be checked:
325 – Non-destructive tests performed according to inspection and test plans.
326 – Dimensional checks of the locations of the pipes.
327 The following preventive measures should be considered:
328 – Support the pipes so they cannot move or be damaged during concreting
329 – Cover/block the pipe openings to prevent concrete from entering the pipes d uring
330 concreting.
331 d) Additional Information
332 Secondary embedded pipes should include draft tube dewatering piping, pressure tapping
333 connections for testing or monitoring purposes, etc.
334 The condition of the piping, especially the small sizes, should be inspected for any
335 deterioration.
336
337
338 5.1.7 Step 7: Handing over to concreting phase
339 a) Objective of work in the step
340 – The work space is transferred to the civil contractor.
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341 b) Explanation of work
342 – The turbine supplier should confirm that the draft tube liner has been installed and
343 aligned properly and is ready for concreting.
344 – There is normally an official transfer of the working area of the draft tube from the
345 turbine supplier to the civil contractor. The transfer typically is documented with some
346 types of signed form.
347 c) Recommendations
348 Refer to table 1 at step 5 of Turbine and generator embedded parts.
349 d) Additional Information
350 N/A
351
352 5.1.8 Step 8: Draft tube embedment
353 e) Objective of work in the step
354 – Embed the draft tube (see Figure 4).
355 f) Explanation of work
356 – Install the reinforcements
357 – Position of the formwork
358 – Pour concrete.
359 g) Recommendations
360 The concrete pour rate, pour/step heights and allowable differential levels should be agreed
361 among the concerned parties during the early stages of project development, due to the
362 critical impacts to deformation and misalignment.
363 h) Additional Information
364 Care should be taken when placing concrete not to damage any of the embedded components
365 or piping.
366 Figure 4 shows an example of a concreting plan.
3rd Concrete
2nd Concrete
1st Concrete
367
368
369 Figure 4 - Draft tube liner embedment plan
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370 5.1.9 Step 9: Concrete voids testing
371 a) Objective of work in the step
372 – Determine if there are voids (hollow spaces) between the draft tube liner and the
373 concrete.
374 b) Explanation of work
375 – A common method to detect voids is by tapping the inside surface of the draft tube
376 liner with a hammer.
377 c) Recommendations
378 While there is no established standard for determining the amount of voids that require
2 2
379 grouting, it is recommended that a single area greater than 0.1m to 0.2m , depending on unit
380 size should to be grouted. Additionally, a minimum of 80% of the liner should be
...
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