EN 61975:2010

SLOVENSKI STANDARD
01-november-2010
Visokonapetostne enosmerne inštalacije (HVDC) - Sistemski preskusi (IEC
61975:2010)
High-voltage direct current (HVDC) installations - System tests (IEC 61975:2010)
Anlagen zur Hochspannungsgleichstromübertragung (HGÜ) - Systemprüfungen (IEC
61975:2010)
Installations en courant continu à haute tension (CCHT) - Essais système (CEI
61975:2010)
Ta slovenski standard je istoveten z: EN 61975:2010
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61975
NORME EUROPÉENNE
September 2010
EUROPÄISCHE NORM
ICS 29.130.10; 31.080.01
English version
High-voltage direct current (HVDC) installations -
System tests
(IEC 61975:2010)
Installations en courant continu  Anlagen zur
à haute tension (CCHT) - Hochspannungsgleichstromübertragung
Essais système (HGÜ) -
(CEI 61975:2010) Systemprüfungen
(IEC 61975:2010)
This European Standard was approved by CENELEC on 2010-09-01. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61975:2010 E
Foreword
The text of document 22F/221/FDIS, future edition 1 of IEC 61975, prepared by SC 22F, Power
electronics for electrical transmission and distribution systems, of IEC TC 22, Power electronic systems
and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61975 on 2010-09-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-06-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-09-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61975:2010 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/TR 60919-1 NOTE  Harmonized as CLC/TR 60919-1.
IEC 61000-4-3 NOTE  Harmonized as EN 61000-4-3.
IEC 61803 NOTE  Harmonized as EN 61803.
__________
- 3 - EN 61975:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60633 1998 Terminology for high-voltage direct current EN 60633 1999
(HVDC) transmission
1)
IEC/TR 60919-2 2008 Performance of high-voltage direct current CLC/TR 60919-2 201X
(HVDC) systems with line-commutated
converters -
Part 2: Faults and switching
1)
At draft stage.
IEC 61975 ®
Edition 1.0 2010-07
INTERNATIONAL
STANDARD
High-voltage direct current (HVDC) installations – System tests

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XC
ICS 29.130.10; 31.080.01 ISBN 978-2-88912-100-7
– 2 – 61975 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references.7
3 Terms and definitions .7
3.1 Test classifications terms .7
3.2 Operation state terms .8
4 General .9
4.1 Purpose.9
4.2 Structure of the HVDC system .10
4.3 Structure of the control and protection system.11
4.4 Logical steps of system test.12
4.5 Structure of system test .13
4.6 Precondition for site test .13
5 Converter station test.16
5.1 General .16
5.2 Converter unit test .17
5.3 Energizing of reactive components.18
5.4 Changing the d.c. system configuration.19
5.5 Electromagnetic compatibility.20
5.6 Trip test.21
5.7 Open line test .22
5.8 Back-to-back test.24
5.9 Short circuit test .25
6 Transmission tests.26
6.1 Low power transmission tests .26
6.2 Operator control mode transfer .34
6.3 Changes of d.c. configuration .40
6.4 Main circuit equipment switching.43
6.5 Dynamic performance testing.47
6.6 AC and d.c. system staged faults .56
6.7 Loss of telecom, auxiliaries or redundant equipment .60
6.8 High power transmission tests .63
6.9 Acceptance tests .67
7 Trial operation .74
7.1 General .74
7.2 Purpose of test .74
7.3 Test precondition.74
7.4 Test procedure .74
7.5 Test acceptance criteria.75
8 System test plan and documentation .75
8.1 General .75
8.2 Plant documentation and operating manual.75
8.3 System study reports and technical specification.75
8.4 Inspection and test plan.76
8.5 System test program.76

61975 © IEC:2010(E) – 3 –
8.6 Test procedure for each test .77
8.7 Documentation of system test results.77
8.8 Deviation report .78
Bibliography .79

Figure 1 – Relation among five major aspects of system test .10
Figure 2 – Structure of the HVDC system .11
Figure 3 – Structure of the HVDC control and protection.11
Figure 4 – Structure of system test .15
Figure 5 – Sequence for low power transmission tests.28
Figure 6 – Step response test of current control at the rectifier .49
Figure 7 – Step response test of extinction angle control at the inverter .50
Figure 8 – Step response test of d.c. voltage control at the inverter .50
Figure 9 – Step response test of current control at the inverter .51
Figure 10 – Step response test of power control at the rectifier .51

– 4 – 61975 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE DIRECT CURRENT (HVDC) INSTALLATIONS –
SYSTEM TESTS
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 f
...