SIST EN IEC 60034-33:2022
(Main)Rotating electrical machines - Part 33: Synchronous hydrogenerators including motor-generators - Specific requirements (IEC 60034-33:2022)
Rotating electrical machines - Part 33: Synchronous hydrogenerators including motor-generators - Specific requirements (IEC 60034-33:2022)
This part of IEC 60034 applies to three-phase salient-pole synchronous generators and synchronous motor-generators for hydraulic turbine and pump-turbine applications, that have rated frequency of 50 Hz or 60 Hz, rated output of 10 MVA and above, pole pair number 3 and above, and rated voltage of 6 kV and above.
This document supplements basic requirements for rotating machines given in IEC 60034-1.
Drehende elektrische Maschinen - Teil 33: Besondere Anforderungen an Synchrongeneratoren, angetrieben durch hydraulische Turbinen, einschließlich Motor-Generatoren (IEC 60034-33:2022)
Machines électriques tournantes - Partie 33 : Hydro-génératrices synchrones y compris les groupes moteur-générateurs - Exigences spécifiques (IEC 60034-33:2022)
IEC 60034-33:2022 s'applique aux génératrices synchrones triphasées à pôles saillants et aux groupes moteur-générateurs synchrones pour les applications de turbines hydrauliques et de pompes-turbines, qui ont une fréquence assignée de 50 Hz ou 60 Hz, une sortie assignée supérieure ou égale à 10 MVA, un nombre de paires de pôles supérieur ou égal à 3, et une tension assignée supérieure ou égale à 6 kV.
Le présent document complète les exigences principales pour les machines tournantes données dans l’IEC 60034-1.
Električni rotacijski stroji - 33. del: Sinhronski hidrogeneratorji, vključno z motor-generatorji - Posebne zahteve (IEC 60034-33:2022)
Ta del standarda IEC 60034 se uporablja za trifazne sinhronske generatorje z izpostavljenimi poli in sinhronske motorne generatorje za uporabo s hidravličnimi in črpalnimi turbinami z nazivno frekvenco 50 ali 60 Hz, nazivno močjo 10 MVA in več, številom parov polov 3 in več ter nazivno napetostjo 6 kV in več.
Ta dokument dopolnjuje osnovne zahteve za rotacijske stroje, podane v standardu IEC 60034-1.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 60034-33:2022
01-julij-2022
Električni rotacijski stroji - 33. del: Sinhronski hidrogeneratorji, vključno z motor-
generatorji - Posebne zahteve (IEC 60034-33:2022)
Rotating electrical machines - Part 33: Synchronous hydrogenerators including motor-
generators - Specific requirements (IEC 60034-33:2022)
Drehende elektrische Maschinen - Teil 33: Besondere Anforderungen an
Synchrongeneratoren, angetrieben durch hydraulische Turbinen, einschließlich Motor-
Generatoren (IEC 60034-33:2022)
Machines électriques tournantes - Partie 33 : Hydro-génératrices synchrones y compris
les groupes moteur-générateurs - Exigences spécifiques
(IEC 60034-33:2022)
Ta slovenski standard je istoveten z: EN IEC 60034-33:2022
ICS:
29.160.20 Generatorji Generators
SIST EN IEC 60034-33:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 60034-33:2022
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SIST EN IEC 60034-33:2022
EUROPEAN STANDARD EN IEC 60034-33
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2022
ICS 29.160.01; 29.160.20
English Version
Rotating electrical machines - Part 33: Synchronous
hydrogenerators including motor-generators - Specific
requirements
(IEC 60034-33:2022)
Machines électriques tournantes - Partie 33 : Hydro- Drehende elektrische Maschinen - Teil 33: Besondere
génératrices synchrones y compris les groupes moteur- Anforderungen an Synchrongeneratoren, angetrieben durch
générateurs - Exigences spécifiques hydraulische Turbinen, einschließlich Motor-Generatoren
(IEC 60034-33:2022) (IEC 60034-33:2022)
This European Standard was approved by CENELEC on 2022-03-04. 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,
Turkey 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60034-33:2022 E
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SIST EN IEC 60034-33:2022
EN IEC 60034-33:2022 (E)
European foreword
The text of document 2/2081/FDIS, future edition 1 of IEC 60034-33, prepared by IEC/TC 2 "Rotating
machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 60034-33:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-12-04
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-03-04
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 60034-33:2022 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 standards
indicated:
IEC/TS 60034-32 NOTE Harmonized as CLC IEC/TS 60034-32
ISO 5801 NOTE Harmonized as EN ISO 5801
2
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SIST EN IEC 60034-33:2022
EN IEC 60034-33:2022 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
1
IEC 60034-1 - Rotating electrical machines - Part 1: EN 60034-1 -
Rating and performance
IEC 60034-2-1 - Rotating electrical machines - Part 2-1: EN 60034-2-1 -
Standard methods for determining losses
and efficiency from tests (excluding
machines for traction vehicles)
IEC 60034-2-2 - Rotating electrical machines - Part 2-2: EN 60034-2-2 -
Specific methods for determining separate
losses of large machines from tests -
Supplement to IEC 60034-2-1
IEC 60034-4-1 - Rotating electrical machines - Part 4-1: EN IEC 60034-4-1 -
Methods for determining electrically
excited synchronous machine quantities
from tests
IEC 60034-15 - Rotating electrical machines - Part 15: EN 60034-15 -
Impulse voltage withstand levels of form-
wound stator coils for rotating a.c.
machines
IEC 60034-18-1 - Rotating electrical machines - Part 18-1: EN 60034-18-1 -
Functional evaluation of insulation
systems - General guidelines
IEC 60034-18-32 - Rotating electrical machines - Part 18-32: EN IEC 60034-18-32 -
Functional evaluation of insulation
systems - Test procedures for form-wound
windings - Evaluation by electrical
endurance
1
Under preparation. Stage at the time of publication: FprEN 60034-1 and FprEN 60034-1/prAA.
3
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SIST EN IEC 60034-33:2022
EN IEC 60034-33:2022 (E)
IEC/TS 60034-18-33 - Rotating electrical machines - Part 18-33: CLC/TS 60034-18-33
Functional evaluation of insulation
systems - Test procedures for form-wound
windings - Multifactor evaluation by
endurance under simultaneous thermal
and electrical stresses
IEC 60034-27-1 - Rotating electrical machines - Part 27-1: EN IEC 60034-27-1 -
Off-line partial discharge measurements
on the winding insulation
IEC 60034-27-3 - Rotating electrical machines - Part 27-3: EN 60034-27-3 -
Dielectric dissipation factor measurement
on stator winding insulation of rotating
electrical machines
IEC 60034-27-4 - Rotating electrical machines - Part 27-4: EN IEC 60034-27-4 -
Measurement of insulation resistance and
polarization index of winding insulation of
rotating electrical machines
IEC 60050-411 - International Electrotechnical Vocabulary - -
(IEV) - Part 411: Rotating machinery
IEC 60060-1 - High-voltage test techniques - Part 1: EN 60060-1 -
General definitions and test requirements
IEC 60085 - Electrical insulation - Thermal evaluation EN 60085 -
and designation
IEC 60287-3-1 - Electric cables - Calculation of the current - -
rating - Part 3-1: Operating conditions -
Site reference conditions
IEC 60417 2002 Graphical symbols for use on equipment - - -
12-month subscription to regularly
updated online database comprising all
graphical symbols published in IEC 60417
IEC 60445 - Basic and safety principles for man- EN IEC 60445 -
machine interface, marking and
identification - Identification of equipment
terminals, conductor terminations and
conductors
IEC 63132-1 - Guidance for installation procedures and EN IEC 63132-1 -
tolerances of hydroelectric machines -
Part 1: General aspects
IEC 63132-2 - Guidance for installation procedures and EN IEC 63132-2 -
tolerances of hydroelectric machines -
Part 2: Vertical generators
ISO 20816-1 - Mechanical vibration - Measurement and - -
evaluation of machine vibration - Part 1:
General guidelines
ISO 20816-5 - Mechanical vibration - Measurement and - -
evaluation of machine vibration - Part 5:
Machine sets in hydraulic power
generating and pump-storage plants
- - Earthing of power installations exceeding EN 50522 2010
1 kV a.c.
4
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SIST EN IEC 60034-33:2022
EN IEC 60034-33:2022 (E)
TM
IEEE Std 1043 1996 IEEE Recommended practice for voltage- - -
endurance testing of form-wound bars and
coils
TM
IEEE Std 1310 2012 IEEE Recommended practice for thermal - -
cycle for voltage-endurance testing of
form-wound bars and coils for large
rotating machines
TM
IEEE Std 1553 2002 IEEE Trial-use standard for voltage- - -
endurance testing of form-wound coils
and bars for hydrogenerators
5
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SIST EN IEC 60034-33:2022
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SIST EN IEC 60034-33:2022
IEC 60034-33
®
Edition 1.0 2022-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rotating electrical machines –
Part 33: Synchronous hydrogenerators including motor-generators – Specific
requirements
Machines électriques tournantes –
Partie 33: Hydro-génératrices synchrones y compris les groupes moteur-
générateurs – Exigences spécifiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.160.01; 29.160.20 ISBN 978-2-8322-1071-2
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 60034-33:2022
– 2 – IEC 60034-33:2022 © IEC 2022
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Site operation conditions . 11
5 Ratings and parameters. 11
5.1 Output. 11
5.1.1 Output rating of a hydrogenerator . 11
5.1.2 Output ratings of a motor-generator . 11
5.1.3 Increase in active power . 11
5.1.4 Under-excited operation . 11
5.2 Rated voltage . 12
5.3 Rated power factor. 12
5.4 Rated speed . 12
5.5 P-Q capability diagram . 12
5.6 Voltage and frequency variations during operation . 13
5.7 Efficiency and losses . 15
5.7.1 Weighted average efficiency . 15
5.7.2 Losses . 15
5.7.3 Determination of winding losses . 16
5.7.4 Windage Losses . 16
5.7.5 Determination of thrust bearing losses for vertical machines . 16
5.7.6 Tolerance of the total losses . 17
5.8 Electrical parameters and time constants . 17
5.8.1 Short-circuit ratio . 17
5.8.2 Direct axis transient and subtransient reactances . 17
5.8.3 General case . 18
5.9 Tolerances on reactance . 18
5.10 Total harmonic distortion (THD) . 18
5.11 Torques . 18
6 Temperature . 18
6.1 Temperature rise . 18
6.2 Measurements for the stator winding . 19
6.3 Measurements for the stator core . 20
6.4 Correction due to deviation from reference operation . 20
6.5 Bearing temperature . 21
7 Operating performances and electrical connections . 21
7.1 Special operational requirements . 21
7.1.1 Stator overload current . 21
7.1.2 Rotor overload current . 21
7.1.3 Continuous unbalanced load . 21
7.1.4 Short time unbalanced load . 22
7.1.5 Mechanical output overload . 22
7.1.6 Sudden short circuit . 22
7.2 Connection to grid . 23
7.2.1 Synchronization . 23
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SIST EN IEC 60034-33:2022
IEC 60034-33:2022 © IEC 2022 – 3 –
7.2.2 Application of load . 23
7.3 Starting of motor-generator . 23
7.4 System earthing . 24
7.5 Neutral point leads . 25
7.6 Rotating direction and phase sequence . 25
7.7 Stator winding . 25
8 Winding insulation . 25
8.1 Winding insulation performance . 25
8.1.1 General . 25
8.1.2 Winding insulation resistance . 25
8.1.3 Dielectric dissipation factor measurements on new stator bars or coils . 26
8.1.4 Partial discharge measurements for stator winding . 27
8.1.5 Voltage withstand test for turn insulation of multi-turn coil for stator. 27
8.2 Voltage withstand tests . 27
8.2.1 Stator bars/coils . 27
8.2.2 Inserted stator bars/coils . 27
8.2.3 Stator winding completed before rotor inserted . 27
8.2.4 Field winding before delivery . 27
8.2.5 Field winding completed . 28
8.2.6 Stator winding for completed machine . 28
8.2.7 Field winding for completed machine . 28
8.2.8 DC alternative tests . 28
8.2.9 Global VPI stators . 28
8.3 Breakdown test for insulation . 28
8.4 Voltage endurance test for insulation . 29
8.5 Thermal cycle test . 30
8.6 Stator winding terminals . 30
9 Mechanical performances and design . 30
9.1 Rotating part mass moment of inertia . 30
9.2 Maximum speed . 30
9.3 Structural strength . 30
9.4 Critical bending speed . 31
9.5 Start and stop of motor-generators . 31
9.6 Start and stop of hydrogenerators . 31
9.7 Over speed . 31
9.8 Fatigue verification . 32
10 Core vibration . 32
11 Noise . 32
12 Basic structural requirements . 34
12.1 General layout . 34
12.1.1 Structure and general layout of the machines . 34
12.1.2 Machine components . 34
12.1.3 Hydraulic or pneumatic braking system . 34
12.1.4 Hydraulic jacking system . 34
12.1.5 Dynamical (electrical) braking . 34
12.2 Stator . 34
12.2.1 Frame and core structure . 34
12.2.2 Stator frame connecting structure . 35
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SIST EN IEC 60034-33:2022
– 4 – IEC 60034-33:2022 © IEC 2022
12.2.3 Stator end winding . 35
12.3 Rotor . 35
12.3.1 Damper winding . 35
12.3.2 Structure with one shaft or segmented shafts . 35
12.4 Structure tolerance . 35
12.5 Bearings . 35
12.5.1 Bearing alloy . 35
12.5.2 Bearing lubricant . 35
12.5.3 Shaft currents . 35
12.5.4 Bearing insulation resistance . 36
13 Ventilation and cooling system . 36
13.1 Cooling scheme . 36
13.1.1 General . 36
13.1.2 Air cooling system . 36
13.1.3 Evaporative cooling system . 36
13.1.4 Water cooling system . 36
13.2 Redundancy on the design of coolers and motor fans . 37
13.3 Cooling structure . 37
13.3.1 Materials . 37
13.3.2 Water supply and drainage . 37
13.3.3 Cooling water pressure . 37
14 Instrumentation required for protection and control . 37
14.1 General . 37
14.2 Stator and bearing temperature. 37
14.3 Bearing vibration and shaft displacement . 38
15 Condition monitoring of machines . 38
15.1 General . 38
15.2 Instrumentation required for condition monitoring . 39
16 Marking . 39
16.1 Information to be marked on machine nameplate: . 39
16.2 Repaired or refurbished machines. 40
17 Factory and site tests . 40
Annex A (informative) Special tools . 41
Annex B (informative) Correction of measured windage losses on the machines . 42
Annex C (informative) Correction of measured bearing losses for different oil bath
temperatures . 45
Annex D (informative) Scope of supply . 47
Annex E (informative) Test run and guaranteed period . 48
E.1 72 h test run . 48
E.2 15~30-day examination test run for motor-generators . 48
E.3 Handover and guarantee period . 48
Annex F (informative) Test items . 49
F.1 Inspection test for hydrogenerator and motor-generator in factory . 49
F.2 Site routine test of hydrogenerator and motor-generator . 49
F.3 Startup test run of hydrogenerator and motor-generator . 50
F.4 Performance test of hydrogenerator . 50
Annex G (informative) Condition monitoring . 51
G.1 Air gap distance . 51
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SIST EN IEC 60034-33:2022
IEC 60034-33:2022 © IEC 2022 – 5 –
G.2 Core and frame vibration . 51
G.3 Stator end winding vibration . 51
G.4 Partial discharge . 51
G.5 Air gap magnetic flux . 52
G.6 Others. 52
Bibliography . 53
Figure 1 – P-Q capability in p.u. . 13
Figure 2 – Voltage and frequency limits for hydro machines . 14
Figure 3 – Location of measuring points in the horizontal plane . 33
Table 1 – Preferred speed for 50 Hz machines . 12
Table 2 – Preferred speed for 60 Hz machines . 12
Table 3 – Reference temperature . 16
Table 4 – Temperature rise limits . 19
Table 5 – Permitted overload current multiple vs. time duration . 21
Table 6 – Permitted negative phase sequence current for the machines . 22
Table 7 –
...
SLOVENSKI STANDARD
oSIST prEN IEC 60034-33:2021
01-junij-2021
Električni rotacijski stroji - 33. del: Posebne tehnične zahteve za sinhrone
hidrogeneratorje, vključno z motornimi generatorji
Rotating electrical machines - Part 33: Specific technical requirements for synchronous
hydrogenerators including motor-generators
Ta slovenski standard je istoveten z: prEN IEC 60034-33:2021
ICS:
29.160.20 Generatorji Generators
oSIST prEN IEC 60034-33:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 60034-33:2021
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oSIST prEN IEC 60034-33:2021
2/2041/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60034-33 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-03-05 2021-05-28
SUPERSEDES DOCUMENTS:
2/2014/CD, 2/2029A/CC
IEC TC 2 : ROTATING MACHINERY
SECRETARIAT: SECRETARY:
United Kingdom Mr Charles Whitlock
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
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are aware
and to provide supporting documentation.
TITLE:
Rotating electrical machines – Part 33: Specific technical requirements for synchronous hydrogenerators including
motor-generators
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.
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oSIST prEN IEC 60034-33:2021
– 2 – IEC CDV 60034-33 IEC 2021
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Site operation conditions . 10
5 Ratings and parameters . 11
5.1 Output . 11
5.1.1 Output rating of a hydrogenerator . 11
5.1.2 Output ratings of a motor-generator . 11
5.1.3 Increase in active power . 11
5.1.4 Under-excited operation . 11
5.2 Rated voltage . 11
5.3 Rated power factor . 11
5.4 Rated speed . 11
5.5 P-Q capability diagram . 12
5.6 Voltage and frequency variations during operation . 13
5.7 Efficiency and losses . 14
5.7.1 Weighted average efficiency . 14
5.7.2 Losses . 15
5.7.3 Determination of winding losses . 15
5.7.4 Windage Losses . 16
5.7.5 Determination of thrust bearing losses for vertical machines . 16
5.7.6 Tolerance of the total losses . 16
5.8 Electrical parameters and time constants . 17
5.8.1 Short-circuit ratio . 17
5.8.2 Direct axis transient and subtransient reactances . 17
5.8.3 General case . 17
5.9 Tolerances on reactance . 17
5.10 Total harmonic distortion (THD) . 18
5.11 Torques . 18
6 Temperature . 18
6.1 Temperature rise . 18
6.2 Modification due to deviation from reference operation . 20
6.3 Bearing temperature . 20
7 Operating performances and electrical connections . 20
7.1 Special operational requirements . 20
7.1.1 Stator overload current . 20
7.1.2 Rotor overload current . 20
7.1.3 Continuous unbalanced load . 21
7.1.4 Short time unbalanced load . 21
7.1.5 Mechanical output overload . 21
7.1.6 Sudden short circuit . 22
7.2 Connection to grid . 22
7.2.1 Synchronization . 22
7.2.2 Application of load . 23
7.3 Starting of motor-generator . 23
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oSIST prEN IEC 60034-33:2021
IEC CDV 60034-33 IEC 2021 – 3 –
7.4 System Earthing . 23
7.5 Neutral point leads . 24
7.6 Rotating direction and phase sequence. 24
7.7 Stator winding . 24
8 Winding insulation . 25
8.1 Winding insulation performance . 25
8.1.1 General . 25
8.1.2 Winding insulation resistance . 25
8.1.3 Dielectric dissipation factor measurements on new stator bars or coils . 26
8.1.4 Partial discharge measurements for stator winding . 26
8.1.5 Voltage withstand test for turn insulation of multi-turn coil for stator . 26
8.2 Voltage withstand tests . 26
8.2.1 Stator bars/coils . 26
8.2.2 Inserted Stator bars/coils . 26
8.2.3 Stator winding completed before rotor inserted . 26
8.2.4 Excitation winding before delivery . 26
8.2.5 Excitation winding completed . 27
8.2.6 Stator winding for completed machine . 27
8.2.7 Excitation winding for completed machine . 27
8.2.8 DC alternative tests . 27
8.2.9 Global VPI stators . 27
8.3 Breakdown test for insulation . 27
8.4 Voltage endurance test for insulation . 28
8.5 Thermal cycle test . 28
8.6 Stator winding terminals . 29
9 Mechanical performances and design . 29
9.1 Rotating part mass moment of inertia . 29
9.2 Maximum speed . 29
9.3 Structural strength . 29
9.4 Critical bending speed . 30
9.5 Start and stop of motor-generators. 30
9.6 Start and stop of hydrogenerators . 30
9.7 Over speed . 30
9.8 Fatigue verification . 30
10 Core Vibration . 31
11 Noise . 31
12 Basic structural requirements . 32
12.1 General layout . 32
12.1.1 Structure and general layout of the machines . 32
12.1.2 Machine components . 32
12.1.3 Hydraulic or pneumatic braking system . 33
12.1.4 Hydraulic jacking system . 33
12.1.5 Dynamical (Electrical) braking . 33
12.2 Stator . 33
12.2.1 Frame and core structure. 33
12.2.2 Stator frame connecting structure . 33
12.2.3 Stator end winding . 33
12.3 Rotor . 34
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oSIST prEN IEC 60034-33:2021
– 4 – IEC CDV 60034-33 IEC 2021
12.3.1 Damper winding . 34
12.3.2 Structure with one shaft or segmented shafts . 34
12.4 Structure tolerance . 34
12.5 Bearings . 34
12.5.1 Bearing alloy . 34
12.5.2 Bearing lubricant . 34
12.5.3 Shaft currents . 34
12.5.4 Bearing insulation resistance . 34
13 Ventilation and cooling system . 35
13.1 Cooling scheme . 35
13.1.1 General . 35
13.1.2 Air cooling system . 35
13.1.3 Evaporative cooling system . 35
13.1.4 Water cooling system . 35
13.2 Redundancy on air to water cooler design . 35
13.3 Cooling structure . 35
13.3.1 Materials . 35
13.3.2 Water supply and drainage . 35
13.3.3 Cooling water pressure . 35
14 Instrumentation required for protection and control . 36
14.1 General . 36
14.2 Stator and bearing temperature . 36
14.3 Bearing vibration and shaft displacement . 36
15 Condition monitoring of machines . 37
15.1 General . 37
15.2 Instrumentation required for condition monitoring . 37
16 Marking . 37
16.1 Following information shall be marked on machine nameplate: . 37
16.2 Repaired or refurbished machines . 38
17 Factory and site tests . 38
Annex A (informative) Special tools . 39
Annex B (informative) Correction of measured windage losses on the machines . 40
Annex C (informative) Correction of measured bearing losses for different oil bath
temperatures . 42
Annex D (informative) Scope of supply . 44
Annex E (informative) Test run and guaranteed period. 45
E.1 72 h test run . 45
E.2 15-30 day examination test run for motor-generators . 45
E.3 Handover and guarantee period . 45
Annex F (informative) Test items . 46
F.1 Inspection test for hydrogenerator and motor-generator in factory . 46
F.2 Site routine test of hydrogenerator and motor-generator . 46
F.3 Startup test run of hydrogenerator and motor-generator . 47
F.4 Performance test of hydrogenerator . 47
Annex G (informative) Condition Monitoring . 48
G.1 Air gap distance . 48
G.2 Core and frame vibration. 48
G.3 Stator end winding vibration . 48
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G.4 Partial discharge . 48
G.5 Air gap magnetic flux . 49
Bibliography . 50
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Rotating electrical machines –
Part 33: Specific technical requirements for synchronous
hydrogenerators including motor-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
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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.
International Standard IEC 60034-33 has been prepared by working group 33: Rotating electrical
machines – Part 33: Specific technical requirements for synchronous hydrogenerators including motor-
generators, of IEC technical committee 2: Rotating Machinery.
The text of this standard is based on the following documents:
FDIS Report on voting
XX/XX/FDIS XX/XX/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60034 series, published under the general title Rotating electrical
machines, can be found on the IEC website.
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The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The National Committees are requested to note that for this publication the stability date is .
THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED
AT THE PUBLICATION STAGE.
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1 1 Scope
2 This part of IEC 60034 applies to three-phase salient-pole synchronous generators and synchronous
3 motor-generators for hydraulic turbine and pump-turbine applications, that have rated frequency of 50
4 Hz or 60 Hz, rated output of 10 MVA and above, pole pair number 3 and above, and rated voltage of 6
5 kV and above.
6 This document supplements basic requirements for rotating machines given in IEC 60034-1.
7 2 Normative references
8 The following documents are referred to in the text in such a way that some or all of their content
9 constitutes requirements of this document. For dated references, only the edition cited applies. For
10 undated references, the latest edition of the referenced document (including any amendments) applies.
11 IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
12 IEC 60034-2-2, Rotating electrical machines – Part 2-2: Specific methods for determining
13 separate losses of large machines from tests – Supplement to IEC 60034-2-1
14 IEC 60034-4-1, Rotating electrical machines - Part 4-1: Methods for determining electrically
15 excited synchronous machine quantities from tests
16 IEC 60034-9, Rotating electrical machines – Part 9: Noise limits
17 IEC 60034-18-1: Rotating electrical machines – Part 18-1: Functional evaluation of insulation
18 systems – General guidelines Amendment 1 (1996)
19 IEC 60034-18-32: Rotating electrical machines – Part 18-32: Functional evaluation of insulation
20 systems – Electrical endurance qualification procedures for form-wound windings
21 IEC 60034-18-33: Rotating electrical machines – Part 18-33: Functional evaluation of insulation
22 systems – Test procedures for multifunctional evaluation of form-wound windings by endurance
23 under combined thermal and electrical stresses of insulation systems used in rotating machines
24 IEC 60034-27-1, Rotating electrical machines – Part 27-1: Off-line partial discharge
25 measurements on the stator winding insulation of rotating electrical machines
26 IEC TS 60034-27-2, Rotating electrical machines – Part 27-2: On-line partial discharge
27 measurements on the stator winding insulation of rotating electrical machines
28 IEC 60034-27-3, Rotating electrical machines – Part 27-3: Dielectric dissipation factor
29 measurement on stator winding insulation of rotating electrical machines
30 IEC 60034-27-4, Rotating electrical machines – Part 27-4: Measurement of insulation
31 resistance and polarization index of winding insulation of rotating electrical machines
32 IEC TS 60034-32, Rotating electrical machines – Part 32: Measurement of stator end-winding
33 vibration at form-wound windings
34 IEC 60050-411, International Electrotechnical Vocabulary – Chapter 411: Rotating Machines
35 IEC 60060-1, High-voltage test techniques – Part 1: General definitions and test requirements
36 IEC 60085, Electrical insulation – Thermal evaluation and designation
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37 IEC 60417, Graphical symbols for use on equipment
38 IEC 60445, Basic and safety principles for man-machine interface, marking and identification –
39 Identification of equipment terminals, conductor terminations and conductors
40 IEC 63132-1, Guide for installation procedures and tolerances of hydroelectric machines – Part
41 1: Common
42 IEC 63132-2, Guide for installation procedures and tolerances of hydroelectric machines – Part
43 2: Vertical generator
44 ISO 5801, Industrial fans - Performance testing using standardized airways
45 ISO 19283, Condition monitoring and diagnostics of machines – Hydroelectric generating units
46 ISO 20816-1, Mechanical vibration — Measurement and evaluation of machine vibration —Part
47 1: General Guidelines
48 ISO 20816-5, Mechanical vibration — Measurement and evaluation of machine vibration —Part
49 5: Machine sets in hydraulic power generating and pump-storage plants
50 3 Terms and definitions
51 For the purposes of this document, the terms and definitions given in IEC 60034-1, IEC 60034-
52 2-1, IEC 60034-2-2, IEC 60050411, IEC 63132-1, some of which are repeated here for
53 convenience, and those specified below apply.
54 3.1
55 hydrogenerator
56 a synchronous machine operated as generator and driven by a hydraulic turbine
57 3.2
58 motor-generator
59 a synchronous machine which can operate in motor mode and generator mode, generally used
60 in pumped-storage power plant
61 3.3
62 stator concentricity
63 the radial distance from the reference centre to the best centre of stator bore
64 3.4
65
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