IEC 63132-2:2020

Guidance for installation procedures and tolerances of hydroelectric machines - Part 2: Vertical generators

The purpose of IEC 63132-2:2020 is to establish, in a general way, suitable procedures and tolerances for installation of generator. This document presents a typical assembly. There are many possible ways to assemble a unit. The size of the machines, design of the machines, layout of the powerhouse or delivery schedule of the components are some of the elements that could result in additional steps, 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. This document excludes matters of purely commercial interest, except those inextricably bound up with the conduct of installation. This document applies to vertical generators according to IEC 60034-7. The tolerances in this document have been established upon best practices and experience, although it is recognized that other standards specify different tolerances. Brushless excitation system is not included in this document. Wherever this document 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.

Lignes directrices des procédures et tolérances d'installation des machines hydroélectriques - Partie 2: Alternateurs verticaux

IEC 63132-2:2020 L’objectif de la présente partie de l'IEC 63132 est d’établir, d’une façon générale, des procédures et des tolérances adéquates pour l’installation des turbines et alternateurs hydroélectriques. Ce document présente un assemblage typique. Il y a plusieurs façons possibles pour assembler un groupe. Les dimensions des machines, la conception des machines, le plan de la centrale et l’échéancier des livraisons des différentes composantes sont quelques éléments qui peuvent résulter en l’ajout d’étapes, l’élimination de certaines étapes et/ou des séquences d’assemblages.
Il est entendu que ce type de document sera contraignant seulement si, et dans la mesure où, les deux parties contractuelles l’ont convenu.
Ce document exclut les questions d’intérêt purement commercial, sauf celles inextricablement liées au déroulement de l’installation.
Les tolérances mentionnées dans ce document ont été déterminées selon les meilleures pratiques et l’expérience, bien qu’il soit reconnu que d’autres normes spécifient des tolérances différentes.
Ce guide s’applique aux alternateurs verticaux selon l'IEC 60034-7.
Partout où ce document précise que des documents, des dessins ou des renseignements sont fournis par un fabricant (ou par des fabricants), chaque fabricant fournira les informations appropriées pour leur propre approvisionnement seulement.

General Information

• Status: Published
• Publication Date: 19-Apr-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.140 - Hydraulic energy engineering
• Technical Committee: TC 4 - Hydraulic turbines
• Drafting Committee: WG 30 - TC 4/WG 30
• Current Stage: PPUB - Publication issued
• Start Date: 01-May-2020
• Completion Date: 20-Apr-2020

Standards Content (Sample)

IEC 63132-2 ®
Edition 1.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guidance for installation procedures and tolerances of hydroelectric machines –
Part 2: Vertical generators
Lignes directrices des procédures et tolérances d’installation des machines
hydroélectriques –
Partie 2: Alternateurs verticaux
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IEC 63132-2 ®
Edition 1.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guidance for installation procedures and tolerances of hydroelectric machines –

Part 2: Vertical generators
Lignes directrices des procédures et tolérances d’installation des machines

hydroélectriques –
Partie 2: Alternateurs verticaux

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.140 ISBN 978-2-8322-8102-4

– 2 – IEC 63132-2:2020  IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Preparation . 6
5 Installation flowchart . 6
6 Steps . 8
6.1 Step 1: Turbine shaft free . 8
6.2 Step 2: Generator foundation check . 8
6.3 Step 3-1: Lower bracket assembly . 8
6.4 Step 3: Lower bracket installation . 9
6.5 Step 4: Lower bracket bases embedment . 9
6.6 Step 5-1: Stator assembly . 9
6.7 Step 5: Stator installation . 10
6.8 Step 6: Thrust and guide bearing assembly . 10
6.9 Step 7: Brakes and jacks installation . 11
6.10 Step 8: Lower generator shaft installation . 11
6.11 Step 9: Thrust block installation . 11
6.12 Step 10-1: Rotor assembly . 11
6.13 Step 10: Rotor installation . 12
6.14 Step 11: Upper shaft installation . 13
6.15 Step 12-1: Upper bracket assembly . 13
6.16 Step 12: Upper bracket installation . 13
6.17 Step 13: Uncoupled generator shafts runout check . 14
6.18 Step 14: Turbine and generator shafts coupling . 14
6.19 Step 15: Unit alignment . 15
6.20 Step 16: Upper bracket and/or stator bases embedment . 18
6.21 Step 17: Generator guide bearings assembly and adjustment . 19
6.22 Step 18: Slip (collector) rings installation and runout checks . 19
6.23 Step 19: Brush holder supporting structure and brushes installation . 19
6.24 Step 20: Remaining generator parts installation completion . 19
6.25 Step 21: Cleaning, painting and inspection before initial tests . 20
6.26 Step 22: Generator complete . 20
6.27 Step 23: Commissioning . 20
Bibliography . 21

Figure 1 – Generic installation flowchart – Generator . 7
Figure 2 – Stator and rotor magnetic centre . 17
Figure 3 – Unit alignment (thrust bearing below the rotor) . 18

Table 1 – Runout and shaft verticality . 15
Table 2 – Circularity, concentricity and verticality . 16
Table 3 – Air gap . 16

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GUIDANCE FOR INSTALLATION PROCEDURES
AND TOLERANCES OF HYDROELECTRIC MACHINES –

Part 2: Vertical generators
FOREWORD
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International Standard IEC 63132-2 has been prepared by IEC technical committee 4: Hydraulic
turbines.
The text of this International Standard is based on the following documents:
FDIS Report on voting
4/381/FDIS 4/391/RVD
Full information on the voting for the approval of this International
...