EN 61954:1999/A1:2003

SLOVENSKI SIST EN 61954:2002/A1:2004

STANDARD
september 2004
Močnostna elektronika za elektroenergetske prenosne in distribucijske
sisteme – Preskušanje tiristorskih ventilov (elektronk) za statične
kompenzatorje jalove moči – Dopolnilo A1 (IEC 61954:1999/A1:2003)
Power electronics for electrical transmission and distribution systems - Testing of
thyristor valves for static VAR compensators - Amendment A1 (IEC
61954:1999/A1:2003)
ICS 29.240.99; 31.080.20 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 61954/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2003
ICS 29.200; 31.080.01
English version
Power electronics for electrical transmission and distribution systems -
Testing of thyristor valves for static VAR compensators
(IEC 61954:1999/A1:2003)
Electronique de puissance  Leistungselektronik für Übertragungs-
pour les réseaux électriques de transport und Verteilungsnetze –
et de distribution – Prüfung von Thyristorventilen
Essais des valves à thyristors für statische Blindleistungskompensatoren
pour les compensateurs statiques (IEC 61954:1999/A1:2003)
d'énergie réactive
(CEI 61954:1999/A1:2003)
This amendment A1 modifies the European Standard EN 61954:1999; it was approved by CENELEC on
2003-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment 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 amendment 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61954:1999/A1:2003 E

Foreword
The text of document 22F/82/FDIS, future amendment 1 to IEC 61954:1999, 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 amendment A1 to EN 61954:1999 on 2003-04-01.
The following dates were fixed:
– latest date by which the amendment has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-01-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2006-04-01
__________
Endorsement notice
The text of amendment 1:2003 to the International Standard IEC 61954:1999 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
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61954 Amend.1 © IEC:2003 – 3 –
FOREWORD
This amendment has been prepared by subcommittee 22F: Power electronics for electrical
transmission and distribution systems, of IEC technical committee 22: Power electronics
systems and equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
22F/82/FDIS 22F/86/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until 2007. At this date, the publication will be
 reconfirmed;
 withdrawn;
 replaced by a revised edition, or
 amended.
_____________
Page 9
3 Definitions
3.1
thyristor level
Replace, on page 11, definition 3.1 by the following new definition:
part of a thyristor valve comprising a thyristor, or thyristors connected in parallel or anti-
parallel, together with their immediate auxiliaries and reactor, if any
3.4
valve section
Replace, on page 11, definition 3.4 by the following new definition:
electrical assembly, comprising a number of thyristors and other components, which exhibits
pro-rated electrical properties of a complete thyristor valve but only a portion of the full
voltage blocking capability of the thyristor valve, and that can be used for tests
3.7
valve base electronics (VBE)
Replace, on page 11, definition 3.7 by the following new definition:
electronic unit, at earth potential, which is the interface between the control system of the
SVC and the thyristor valves
61954 Amend.1 © IEC:2003 – 5 –
3.9
redundant thyristor levels
Replace, on page 11, definition 3.9 by the following new definition:
the maximum number of thyristor levels in the
...