SIST EN IEC 61400-21-1:2019/A11:2021

Wind energy generation systems - Part 21-1: Measurement and assessment of electrical characteristics - Wind turbines

2020-05-07: When amdt is published, add supersession link between PR=64419 and PR=21139

Windenergieerzeugungsanlagen - Teil 21-1: Messung und Bewertung der elektrischen Kennwerte - Windenergieanlagen

Systèmes de génération d'énergie éolienne - Partie 21-1: Mesurage et évaluation des caractéristiques électriques - Éoliennes

Sistemi za proizvodnjo energije na veter - 21-1. del: Merjenje in ocenjevanje električnih karakteristik - Vetrne turbine - Dopolnilo A11

General Information

• Status: Published
• Publication Date: 08-Dec-2020
• ICS: 27.180 - Wind turbine energy systems
• Technical Committee: IEHT - Electrotechnics - Hydraulic turbins
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Dec-2020
• Due Date: 08-Feb-2021
• Completion Date: 09-Dec-2020
• Ref Project: EN IEC 61400-21-1:2019/A11:2020 - Wind energy generation systems - Part 21-1: Measurement and assessment of electrical characteristics - Wind turbines

Relations

• Amends: SIST EN IEC 61400-21-1:2019 - Wind energy generation systems - Part 21-1: Measurement and assessment of electrical characteristics - Wind turbines (IEC 61400-21-1:2019)
• Effective Date: 12-May-2020

Overview

EN IEC 61400-21-1:2019/A11:2020 is a CENELEC amendment to the European adoption of the IEC standard for wind energy generation systems - Part 21-1: Measurement and assessment of electrical characteristics - Wind turbines. Approved in June 2020, this amendment (A11) updates the European foreword and title page, and explicitly supersedes EN 61400-21:2008 and its amendments. The document supports consistent measurement, reporting and assessment of wind turbine electrical performance for grid compatibility and product certification across CENELEC member countries.

Key topics

This amendment and the underlying Part 21-1 standard focus on:

• Measurement and assessment of electrical characteristics of wind turbines (power quality and electrical performance).
• Standardized test and measurement procedures to ensure repeatable electrical characterization.
• Reporting and assessment requirements for results used in type testing, certification and grid compliance.
• Guidance on test arrangements, instrumentation and data interpretation to support regulatory and technical evaluations.
• Harmonization across national standards through CENELEC adoption and implementation dates.

Note: A11 primarily modifies the European foreword and title-page information and confirms supersession of the 2008 edition; the full Part 21-1 text specifies the detailed measurement and assessment practices.

Applications

EN IEC 61400-21-1:2019/A11:2020 is used by:

• Wind turbine manufacturers for design validation and type testing of electrical performance.
• Accredited test laboratories conducting standardized power quality and electrical characteristic measurements.
• Grid operators and utilities assessing grid compatibility and acceptance of wind plants.
• Certification bodies and conformity assessment organizations evaluating compliance with European electrotechnical requirements.
• Consultants and system integrators performing performance assessments, commissioning tests and interoperability studies.

Using this standard helps ensure consistent, defensible measurement data for grid connection agreements, certification dossiers, and regulatory submissions.

Related standards

• Supersedes: EN 61400-21:2008 (and its amendments/corrigenda).
• Part of the IEC/EN 61400 series addressing various aspects of wind turbine design, testing and certification (refer to national CENELEC listings for up-to-date bibliographic references).

Practical value and keywords

This amendment reinforces the legal and normative position of EN IEC 61400-21-1:2019 in Europe. It is essential for stakeholders seeking authoritative guidance on wind turbine electrical characteristics, power quality testing, grid compatibility, and type testing. Keywords: EN IEC 61400-21-1:2019/A11:2020, wind turbine electrical characteristics, wind energy standards, measurement and assessment, CENELEC, grid compatibility, power quality testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2021
Sistemi za proizvodnjo energije na veter - 21-1. del: Merjenje in ocenjevanje
električnih karakteristik - Vetrne turbine - Dopolnilo A11
Wind energy generation systems - Part 21-1: Measurement and assessment of electrical
characteristics - Wind turbines
Windenergieerzeugungsanlagen - Teil 21-1: Messung und Bewertung der elektrischen
Kennwerte - Windenergieanlagen
Systèmes de génération d'énergie éolienne - Partie 21-1: Mesurage et évaluation des
caractéristiques électriques - Éoliennes
Ta slovenski standard je istoveten z: EN IEC 61400-21-1:2019/A11:2020
ICS:
27.180 Vetrne elektrarne Wind turbine energy systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61400-21-1:2019/A11

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2020
ICS 27.180
English Version
Wind energy generation systems - Part 21-1: Measurement and
assessment of electrical characteristics - Wind turbines
Systèmes de génération d'énergie éolienne - Partie 21-1: Windenergieerzeugungsanlagen - Teil 21-1: Messung und
Mesurage et évaluation des caractéristiques électriques - Bewertung der elektrischen Kennwerte -
Éoliennes Windenergieanlagen
This amendment A11 modifies the European Standard EN IEC 61400-21-1:2019; it was approved by CENELEC on 2020-06-03. 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 CEN-CENELEC
Management Centre 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 th
...