Guideline for commissioning and operation of hydraulic turbines, pump-turbines and storage pumps (IEC 60545:2021)

The purpose of this document is to establish, in a general way, suitable procedures for
commissioning and operation of hydraulic machines and associated equipment, and to indicate
how such machines and equipment should be commissioned and operated.
Commissioning and operation of the associated equipment are not described in detail in this
document but is considered in the commissioning and operation procedure as a separate step.
Machines of up to about 15 MW and reference diameters of about 3 m are generally covered
by IEC 62006.
It is understood that a guideline of this type will be binding only if the contracting parties have
agreed upon it.
The guidelines exclude matters of purely commercial interest, except those inextricably
connected with the conduct of commissioning and operation.
The guidelines are not concerned with waterways, gates, drainage pumps, cooling-water
equipment, generators, motor-generators, electrical equipment (e.g. circuit breakers,
transformers) etc., except where they cannot be separated from the hydraulic machinery and
its equipment.
Wherever the guidelines specify that documents, drawings or information are supplied by a
supplier (or by suppliers), each individual supplier should furnish the appropriate information
for its own supply only.

Richtlinien für die Inbetriebnahme und den Betrieb von Wasserturbinen, Pumpturbinen und Speicherpumpen (IEC 60545:2021)

Lignes directrices pour la mise en service et l'exploitation des turbines hydrauliques, des pompes-turbines et des pompes d'accumulation (IEC 60545:2021)

IEC 60545:2021 Le présent document a pour objet d’établir, d’une manière générale, des procédures appropriées pour la mise en service et l’exploitation des machines hydrauliques et des équipements associés, et d’indiquer la façon dont il convient de mettre en service et d’exploiter ces machines et équipements. La mise en service et l’exploitation des équipements connexes ne sont pas décrites en détail dans le présent document, mais sont prises en compte dans la procédure de mise en service et d’exploitation comme une étape distincte. Les machines d’une puissance pouvant atteindre environ 15 MW et présentant des diamètres de référence d’environ 3 m sont généralement couvertes par l’IEC 62006. Il est entendu qu’une ligne directrice de ce type n’est contraignante que si un accord a été conclu entre les parties contractantes. Les lignes directrices excluent les questions d’intérêt purement commercial, sauf celles qui sont étroitement liées à la conduite de la mise en service et de l’exploitation. Les lignes directrices ne couvrent pas les adductions, les vannes, les pompes de drainage, les équipements de refroidissement à eau, les alternateurs, les générateurs-moteurs, les équipements électriques (par exemple les disjoncteurs, les transformateurs), etc., sauf lorsqu’ils ne peuvent pas être séparés de la machinerie hydraulique et de ses équipements. Lorsque les lignes directrices précisent que les documents, les plans ou les informations sont mis à disposition par un ou plusieurs fournisseurs, il convient que chaque fournisseur fournisse les informations appropriées, concernant uniquement sa propre production. Cette seconde édition annule et remplace la première édition parue en 1976 et la première édition de l’IEC 60805 parue en 1985. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) les aspects traités sont essentiellement la mise en service et l’exploitation de la machine hydraulique. Les interfaces avec la machine électrique ne sont mentionnées que lorsqu’elles permettent une meilleure compréhension du contexte; b) les définitions des essais pour la mise en service et la vitesse variable ont été actualisées selon l’état de l’art; c) les feuilles d’enregistrement "mesures pendant le montage" ont été exclues (voir l’IEC 63132 (toutes les parties); d) la maintenance a été exclue (voir l’IEC 62256).

Smernica za zagon in delovanje vodnih turbin, črpalnih turbin in akumulacijskih črpalk (IEC 60545:2021)

General Information

Status
Published
Publication Date
22-Aug-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
18-Aug-2021
Due Date
23-Oct-2021
Completion Date
23-Aug-2021

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SLOVENSKI STANDARD
SIST EN IEC 60545:2021
01-oktober-2021
Smernica za zagon in delovanje vodnih turbin, črpalnih turbin in akumulacijskih
črpalk (IEC 60545:2021)

Guideline for commissioning and operation of hydraulic turbines, pump-turbines and

storage pumps (IEC 60545:2021)

Richtlinien für die Inbetriebnahme und den Betrieb von Wasserturbinen, Pumpturbinen

und Speicherpumpen (IEC 60545:2021)

Lignes directrices pour la mise en service et l'exploitation des turbines hydrauliques, des

pompes-turbines et des pompes d'accumulation (IEC 60545:2021)
Ta slovenski standard je istoveten z: EN IEC 60545:2021
ICS:
23.080 Črpalke Pumps
23.100.10 Hidravlične črpalke in motorji Pumps and motors
27.040 Plinske in parne turbine. Gas and steam turbines.
Parni stroji Steam engines
SIST EN IEC 60545:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60545:2021
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SIST EN IEC 60545:2021
EUROPEAN STANDARD EN IEC 60545
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2021
ICS 23.100.10
English Version
Guidelines for commissioning and operation of hydraulic
turbines, pump-turbines and storage pumps
(IEC 60545:2021)

Lignes directrices pour la mise en service et l'exploitation Richtlinien für die Inbetriebnahme und den Betrieb von

des turbines hydrauliques, des pompes-turbines et des Wasserturbinen, Pumpturbinen und Speicherpumpen

pompes d'accumulation (IEC 60545:2021)
(IEC 60545:2021)

This European Standard was approved by CENELEC on 2021-07-28. 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

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60545:2021 E
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SIST EN IEC 60545:2021
EN IEC 60545:2021 (E)
European foreword

The text of document 4/407/FDIS, future edition 2 of IEC 60545, prepared by IEC/TC 4 “Hydraulic

turbines” was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN IEC 60545:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2022–04–28

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2024–07–28

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 60545:2021 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 60041 NOTE Harmonized as EN 60041
IEC 60204-1:2016 NOTE Harmonized as EN 60204-1:2018 (modified)
IEC 60308 NOTE Harmonized as EN 60308
IEC 60609-1:2004 NOTE Harmonized as EN 60609-1:2005 (not modified)
IEC 62006 NOTE Harmonized as EN 62006
IEC 62256:2017 NOTE Harmonized as EN 62256:2017 (not modified)
IEC 62364:2019 NOTE Harmonized as EN IEC 62364:2019 (not modified)
IEC 63132 (series) NOTE Harmonized as EN IEC 63132 (series)
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SIST EN IEC 60545:2021
IEC 60545
Edition 2.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guidelines for commissioning and operation of hydraulic turbines,
pump-turbines and storage pumps
Lignes directrices pour la mise en service et l’exploitation des turbines
hydrauliques, des pompes-turbines et des pompes d’accumulation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 23.100.10 ISBN 978-2-8322-9923-4

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 60545:2021
– 2 – IEC 60545:2021 © IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 5

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

3.1 Machine and equipment .......................................................................................... 7

3.2 Tests, periods, operating modes ............................................................................. 9

4 Information on operating conditions ............................................................................... 11

4.1 General ................................................................................................................. 11

4.2 Documents, data and instructions ......................................................................... 11

4.3 Final stage of erection, before commissioning ....................................................... 13

5 Commissioning .............................................................................................................. 13

5.1 General ................................................................................................................. 13

5.1.1 Overview ....................................................................................................... 13

5.1.2 Commissioning period ................................................................................... 14

5.1.3 Operating conditions during commissioning ................................................... 14

5.1.4 Measurements during commissioning ............................................................ 14

5.1.5 Grid and hydraulic conditions ......................................................................... 15

5.1.6 Pre-conditions for commissioning .................................................................. 15

5.1.7 Health and safety during the commissioning .................................................. 16

5.2 Commissioning co-ordinator and organisation ....................................................... 16

5.3 Pre-start tests ....................................................................................................... 17

5.3.1 General ......................................................................................................... 17

5.3.2 Prior to filling waterways ................................................................................ 17

5.3.3 Filling waterways ........................................................................................... 18

5.3.4 Prior to filling machine ................................................................................... 18

5.3.5 Filling machine .............................................................................................. 19

5.3.6 Using the machine as a pump for initial filling of the penstock........................ 20

5.4 Initial run .............................................................................................................. 20

5.5 Test operation period ............................................................................................ 21

5.5.1 General ......................................................................................................... 21

5.5.2 No-load tests ................................................................................................. 21

5.5.3 First synchronizing ........................................................................................ 23

5.5.4 Load rejection and load run ........................................................................... 23

5.5.5 Additional tests for adjustable (variable) speed hydraulic machinery in

combination with a double fed generator/motor-generator .............................. 27

5.5.6 Operation modes and mode changes ............................................................. 28

5.5.7 Control modes ............................................................................................... 29

5.5.8 Operation modes with particular functions ..................................................... 29

5.5.9 Field tests for runaway speed ........................................................................ 30

5.5.10 Other tests ..................................................................................................... 30

5.6 End of commissioning ........................................................................................... 30

6 Operation ...................................................................................................................... 31

6.1 General ................................................................................................................. 31

6.2 Test service period ............................................................................................... 31

6.2.1 General ......................................................................................................... 31

6.2.2 Responsibilities ............................................................................................. 31

6.2.3 Outages and interruptions .............................................................................. 31

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SIST EN IEC 60545:2021
IEC 60545:2021 © IEC 2021 – 3 –

6.2.4 Observations and records .............................................................................. 31

6.2.5 End of test service period .............................................................................. 32

6.3 Commercial service .............................................................................................. 32

6.3.1 Guarantee period ........................................................................................... 32

6.3.2 Post guarantee period ................................................................................... 34

6.3.3 Special operating conditions .......................................................................... 34

Annex A (informative) Description of different modes of operation of a reversible

pump-turbine ........................................................................................................................ 39

A.1 General ................................................................................................................. 39

A.2 From standstill (ready to operate) to standstill (auxiliary systems in

operation) (01 and 10) .......................................................................................... 39

A.3 From standstill (auxiliary systems in operation) to no-load (synchronized) (12) ..... 39

A.4 From no-load (synchronized) to standstill (21)....................................................... 39

A.5 From no-load to turbine operation (23) .................................................................. 40

A.6 From turbine operation to no-load (synchronized) (32) .......................................... 40

A.7 From no-load to synchronous condenser operation (turbine direction) (24) ........... 40

A.8 From synchronous condenser operation (turbine direction) to no-load (42) ........... 41

A.9 From synchronous condenser operation (turbine direction) to turbine

operation (43:= 42 and 23) .................................................................................... 41

A.10 From turbine operation to synchronous condenser operation (turbine

direction) (34:= 32 and 24) .................................................................................... 41

A.11 From standstill (auxiliary systems in operation) to synchronous condenser

operation (turbine direction) 14 or (12 and 24) ...................................................... 41

A.12 From synchronous condenser operation (turbine direction) to standstill (41) ......... 41

A.13 From standstill (auxiliary system in operation) to SCO (pump direction) (15) ......... 42

A.14 From synchronous condenser operation (pump direction) to pump operation (56) . 42

A.15 From pump operation to synchronous condenser operation (pump direction) (65) . 42

A.16 From synchronous condenser operation (pump direction) to standstill (51) ........... 42

A.17 From operation (pump direction) to standstill (61) ................................................. 42

A.18 From standstill to pump operation (16) .................................................................. 42

A.19 From turbine – full load to pump operation (36) ..................................................... 43

A.20 From pump operation to turbine full load – quick change over (63) ........................ 43

A.21 Hydraulic short circuit ........................................................................................... 43

Annex B (informative) Tests for adjustable (variable) speed hydraulic machinery in

combination with a double fed generator/motor-generator ..................................................... 44

B.1 Operating zone and test condition ......................................................................... 44

B.1.1 General ......................................................................................................... 44

B.1.2 Pumping operation ......................................................................................... 44

B.1.3 Generation operation ..................................................................................... 44

B.1.4 Test conditions .............................................................................................. 45

B.2 Test items ............................................................................................................. 45

B.2.1 Step response test by power setter ................................................................ 45

B.2.2 Guide vane opening vs. power characteristic measurement in pump and

turbine operation ........................................................................................... 45

B.2.3 Confirmation of preventive control of the speed deviation from the

defined speed range ...................................................................................... 46

B.2.4 Load (input/output) rejection test ................................................................... 46

Annex C (informative) Commissioning program .................................................................... 47

Bibliography .......................................................................................................................... 48

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SIST EN IEC 60545:2021
– 4 – IEC 60545:2021 © IEC 2021

Figure 1 – Commissioning procedure .................................................................................... 14

Figure 2 – Example of organisation chart for commissioning ................................................. 17

Figure 3 – Modes of operation of a reversible pump-turbine .................................................. 29

Figure B.1 – Pumping operation zone ................................................................................... 44

Figure B.2 – Generation operation zone ................................................................................ 45

Table C.1 – Example for a commissioning procedure programme ......................................... 47

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SIST EN IEC 60545:2021
IEC 60545:2021 © IEC 2021 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GUIDELINES FOR COMMISSIONING AND OPERATION OF HYDRAULIC
TURBINES, PUMP-TURBINES AND STORAGE PUMPS
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 60545 has been prepared by IEC technical committee 4: Hydraulic

turbines.

This second edition cancels and replaces the first edition published in 1976 and the first edition

of IEC 60805 published in 1985. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) the focus is on the commissioning and operation of the hydraulic machine. Interfaces to the

electric machine are mentioned only for a better understanding of the context;

b) the definitions of tests for commissioning and adjustable speed are updated to state of the

art;

c) the record sheets ‘measurements during erection’ are excluded (see IEC 63132 (all parts);

d) the maintenance is excluded (see IEC 62256).
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SIST EN IEC 60545:2021
– 6 – IEC 60545:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
4/407/FDIS 4/420/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.

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/standardsdev/publications.

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 60545:2021
IEC 60545:2021 © IEC 2021 – 7 –
GUIDELINES FOR COMMISSIONING AND OPERATION OF HYDRAULIC
TURBINES, PUMP-TURBINES AND STORAGE PUMPS
1 Scope

The purpose of this document is to establish, in a general way, suitable procedures for

commissioning and operation of hydraulic machines and associated equipment, and to indicate

how such machines and equipment should be commissioned and operated.

Commissioning and operation of the associated equipment are not described in detail in this

document but is considered in the commissioning and operation procedure as a separate step.

Machines of up to about 15 MW and reference diameters of about 3 m are generally covered

by IEC 62006.

It is understood that a guideline of this type will be binding only if the contracting parties have

agreed upon it.

The guidelines exclude matters of purely commercial interest, except those inextricably

connected with the conduct of commissioning and operation.

The guidelines are not concerned with waterways, gates, drainage pumps, cooling-water

equipment, generators, motor-generators, electrical equipment (e.g. circuit breakers,

transformers) etc., except where they cannot be separated from the hydraulic machinery and

its equipment.

Wherever the guidelines specify that documents, drawings or information are supplied by a

supplier (or by suppliers), each individual supplier should furnish the appropriate information

for its own supply only.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

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
3.1 Machine and equipment
3.1.1
hydraulic machinery

turbines, storage pumps, pump-turbines, valves, guide and thrust bearings used in hydroelectric

power and pumped storage stations

Note 1 to entry: The term hydraulic machinery includes hydraulic torque converter and all type of main inlet valves.

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SIST EN IEC 60545:2021
– 8 – IEC 60545:2021 © IEC 2021

Note 2 to entry: Terms related to hydro turbine governing systems are not included; refer to IEC 60308.

[SOURCE: IEC TR 61364:1999, 3.1, modified – Addition of Note 1 to entry.]
3.1.2
hydraulic machine
hydraulic impulse and reaction turbines, storage pumps and pump-turbines
[SOURCE: IEC TR 61364:1999, 3.1]
3.1.3
turbine
machine for transforming hydraulic energy into mechanical energy

Note 1 to entry: The term turbine includes a pump-turbine functioning as a turbine.

Note 2 to entry: The term turbine does not include the inlet or outlet valves nor the associated generator or governor.

[SOURCE: IEC TR 61364:1999, 4.1, modified – Addition of Note 1 to entry.]
3.1.4
pump

machine for transforming mechanical energy into hydraulic energy in order to store water that

will be used later on to produce electric energy

Note 1 to entry: The term pump includes a storage pump and a pump-turbine functioning as a pump.

Note 2 to entry: The term pump does not include the inlet or outlet valves nor the associated motor.

[SOURCE: IEC TR 61364:1999, 4.1, modified – Replacement of "storage pump" with "pump" in

the main term, and addition of Note 1 to entry.]
3.1.5
starting device
starting equipment for a motor-generator or motor
EXAMPLE 1 pony motor
EXAMPLE 2 starting turbine
EXAMPLE 3 frequency converter
EXAMPLE 4 hydraulic torque converter
EXAMPLE 5 back to back

Note 1 to entry: Each example is representing a different method to start the hydraulic machine functioning as a

pump.
3.1.6
opening device

guide vanes or the turbine needle of impulse turbines and its driving components (governing

systems)
3.1.7
electrical machine

generators and motor-generators of synchronous type including the excitation equipment as

well as of the asynchronous type
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SIST EN IEC 60545:2021
IEC 60545:2021 © IEC 2021 – 9 –
3.1.8
associated equipment

all additional machinery which is necessary to allow operation of the hydraulic machine (if

applicable)

EXAMPLE 1 inlet and outlet gates or valves, draft tube gates, cylindrical valves (ring gates)

EXAMPLE 2 pressure relief valves
EXAMPLE 3 couplings
EXAMPLE 4 gear drives
EXAMPLE 5 brake system
EXAMPLE 6 water depression system
EXAMPLE 7 air supply system
EXAMPLE 8 cooling-water systems
EXAMPLE 9 drainage systems
EXAMPLE 10 dewatering systems
EXAMPLE 11 oil supply systems
3.2 Tests, periods, operating modes
3.2.1
commissioning

testing of new or rehabilitated equipment to check its conformity with contractual specifications,

as well as operation of the equipment until formally accepted by the purchaser
3.2.2
operation

utilization of the equipment to convert energy, or a state of readiness for such production

3.2.3
maintenance

activity performed on equipment in order to keep it in a state of optimum operating condition

3.2.4
pre-start test
test between completion of erection of the equipment and initial run
3.2.5
initial run
first movement of rotating parts after erection
3.2.6
test run
operation to obtain one set of data for a specific test
3.2.7
test operation
utilization of the equipment for testing purposes
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SIST EN IEC 60545:2021
– 10 – IEC 60545:2021 © IEC 2021
3.2.8
test operation period
test period following initial run and followed by test service

Note 1 to entry: It includes no-load runs for checking power plant equipment, as well as load runs in turbine and

pumping operation, load rejections and energy supply interruption pump-turbine tests.

3.2.9
no-load test
operation of the machine without connection to the electrical grid
3.2.10
no-discharge test
operation of the machine in pump-mode with the high pressure side valve closed
3.2.11
test service period
operation of the equipment for an agreed period
Note 1 to entry: During this test, the supplier is generally responsible.
3.2.12
commercial service
operation of the equipment, under the operator’s responsibility
3.2.13
commercial service period

period starting after acceptance and including service periods, as well as periods when the

equipment can be out of operation
...

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