Guidance for installation procedures and tolerances of hydroelectric machines - Part 6: Vertical Pelton turbines

IEC 63132-6:2023 is to establish, in a general way, suitable procedures and tolerances for the installation of Pelton vertical turbines. This document presents a typical assembly and whenever the word "turbine" is used in this document, it refers to a vertical Pelton turbine. There are many possible ways to assemble a unit. The size of the machine, the design of the machine, the layout of the powerhouse 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.

Lignes directrices des procédures et tolérances d’installation des machines hydroélectriques - Partie 6: Turbines Pelton verticales

IEC 63132-6:2023 a pour objet d’établir, d’une manière générale, des procédures et des tolérances appropriées pour l’installation des turbines verticales Pelton. Ce document présente un assemblage typique et chaque fois que le mot « turbine » est utilisé dans ce document, il fait référence à une turbine Pelton verticale. Il existe de nombreuses façons d’assembler une unité. La taille de la machine, la conception de la machine, la disposition de la centrale ou le calendrier de livraison des composants sont quelques-uns des éléments qui pourraient entraîner des étapes supplémentaires ou l’élimination de certaines étapes et / ou séquences d’assemblage

General Information

Status
Published
Publication Date
13-Apr-2023
Technical Committee
Drafting Committee
Current Stage
PPUB - Publication issued
Start Date
12-May-2023
Completion Date
14-Apr-2023
Ref Project

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IEC 63132-6 ®
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guidance for installation procedures and tolerances of hydroelectric machines –
Part 6: Vertical Pelton turbines

Lignes directrices des procédures et tolérances d’installation des machines
hydroélectriques –
Partie 6: Turbines Pelton verticales

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IEC 63132-6 ®
Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guidance for installation procedures and tolerances of hydroelectric machines –

Part 6: Vertical Pelton turbines

Lignes directrices des procédures et tolérances d’installation des machines

hydroélectriques –
Partie 6: Turbines Pelton verticales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.140 ISBN 978-2-8322-6782-0

– 2 – IEC 63132-6:2023 © IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative reference . 6
3 Terms and definition . 6
4 Installation flowchart . 7
4.1 Turbine embedded parts . 7
4.2 Turbine mechanical parts . 8
5 Steps . 9
5.1 Turbine embedded parts . 9
5.1.1 Step 1: Benchmarks set-up . 9
5.1.2 Step 2: Installation of turbine housing foundations and embedded pipes . 9
5.1.3 Step 3: Turbine housing foundations embedment. 10
5.1.4 Step 4: Turbine housing foundation and workspace verification . 10
5.1.5 Step 5: Handing over to installation . 10
5.1.6 Step 6: Installation of the turbine housing . 10
5.1.7 Step 7: Handing over to concreting phase. 12
5.1.8 Step 8: Distribution pipe foundations embedment . 12
5.1.9 Step 9: Handing over to installation . 12
5.1.10 Step 10: Installation of the distribution pipe . 13
5.1.11 Step 11: Secondary embedded pipes installation around turbine housing
and distribution pipe . 14
5.1.12 Step 12: Distribution pipe pressurization and test . 14
5.1.13 Step 13: Handing over to concreting phase . 15
5.1.14 Step 14: Turbine housing and distribution pipe embedment . 15
5.1.15 Step 15: Handing over to installation . 16
5.1.16 Step 16: Turbine housing and distribution pipe dimensional inspection
after embedment . 16
5.1.17 Step 17: Installation of turbine housing cover . 16
5.1.18 Step 18: Installation of guide bearing support bracket . 17
5.1.19 Step 19: Handing over to concreting phase . 18
5.1.20 Step 20: Embedment up to generator floor . 18
5.1.21 Step 21: Handing over to installation . 18
5.1.22 Step 22: Guide bearing support bracket dimensional inspection after
embedment . 19
5.1.23 Step 23: Corrosion protection for embedded parts . 19
5.1.24 Step 24: Turbine embedded parts complete . 19
5.1.25 Step 25: Turbine mechanical parts Installation . 19
5.2 Turbine mechanical parts . 19
5.2.1 Step 1: Turbine embedded parts complete . 19
5.2.2 Step 2: Installation of turbine guide bearing housing . 19
5.2.3 Step 3: Installation of turbine shaft . 20
5.2.4 Step 4: Turbine shaft free . 20
5.2.5 Step 5: Generator installation . 21
5.2.6 Step 6: Unit alignment . 21
5.2.7 Step 7: Turbine guide bearing assembly and adjustment . 22
5.2.8 Step 8: Installation of rail system for turbine parts transportation . 22
5.2.9 Step 9: Installation of nozzles . 22

5.2.10 Step 10: Installation of deflector systems . 23
5.2.11 Step 11: Installation of water guide shield . 24
5.2.12 Step 12: Installation of turbine runner . 24
5.2.13 Step 13: Remaining turbine parts installation completion . 24
5.2.14 Step 14: Cleaning, painting and inspection before initial tests . 25
5.2.15 Step 15: Turbine mechanical parts complete . 25
5.2.16 Step 16: Commissioning . 25
Bibliography . 26

Figure 1 – Generic installation flowchart – Pelton turbine embedded parts . 7
Figure 2 – Generic installation flowchart – Pelton turbine mechanical parts . 8
Figure 3 – Turbine housing installation . 11
Figure 4 – Distribution pipe installation . 13
Figure 5 – Nozzles installation . 23

Table 1 – Turbine housing measurements . 11
Table 2 – Distribution pipe measurements . 14
Table 3 – Turbine housing cover measurements . 17
Table 4 – Guide bearing support bracket measurements . 17
Table 5 – Shaft measurements . 20
Table 6 – Unit alignment measurements . 21
Table 7 – Nozzles measurements . 23

– 4 – IEC 63132-6:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GUIDANCE FOR INSTALLATION PROCEDURES AND
TOLERANCES OF HYDROELECTRIC MACHINES –

Part 6: Vertical Pelton turbines

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,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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with the IEC also participate in this preparation. IEC collaborates closely with the Internation
...

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