International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61954:1999/A1:2003
Title Power electronics for electrical transmission and distribution systems - Testing of thyristor valves for static VAR compensators
Project Number 14826
Abstract/Scope Defines type, production and optional test on thyristor valves used in thyristor controlled reactots (TCR), Thyristor switched reactor (TSR) and thyristor switched capacitors (TSC) forming part of static VAR compensators (SVC) for power system applications. the requirements of the standard apply both to single valve units (one phase) and to multiple valve units (several phases). Clauses 4 to 7 detail the type tests, clause 8 covers the production tests, clauses 9 and 7 detail optional tests.


Current Stage code 6060
Current Stage code date 2003-04-24
Current Stage code deadline 2004-01-01
Deadline date for vote  


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IEC Technical Body IEC/SC 22F
Reference Document IEC 61954:1999/A1:2003 (EQV)
ICS 29.200 - Rectifiers. Convertors. Stabilized power supply
31.080.01 - Semiconductor devices in general
Keywords Power electronics; Transmission; Distribution; Thyristor valve; VAR compensator
Note Superseded by EN 61954:2011
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2003-04-24 2004-01-01 export to doc file  EN
5099 2003-04-01 2003-08-01  
5061 2003-02-27 2003-04-01  
5020 2002-12-06 2003-02-07  
4099 2002-12-03 2002-12-06  
4020 2001-10-26 2002-03-29  
3099 2001-10-16 2001-10-19  

Implementation Dates

date of Ratification (DOR) (1) 2003-04-01
date of Availability (DAV) (2) 2003-04-24
date of Announcement (DOA) (3) 2003-07-01
date of Publication (DOP) (4) 2004-01-01
date of Withdrawal (DOW) (5) 2006-04-01


Superseded by EN 61954:2011
Normative reference (6)  

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.