SIST EN 62146-1:2014/A1:2016
(Amendment)Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General (IEC 62146-1:2013/A1:2016)
Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General (IEC 62146-1:2013/A1:2016)
Spannungsausgleichskondensatoren für Hochspannungs-Wechselstrom-Leistungsschalter - Teil 1: Allgemeines
Condensateurs de répartition pour disjoncteurs à courant alternatif haute tension - Partie 1: Généralités
Kondenzatorji za izravnavo potenciala pri visokonapetostnih odklopnikih za izmenični tok - 1. del: Splošno (IEC 62146-1:2013/A1:2016) - Dopolnilo A1
General Information
Relations
Overview
EN 62146-1:2014/A1:2016 (aligned with IEC 62146-1:2013/A1:2016) is the European amendment covering grading capacitors for high‑voltage alternating‑current circuit‑breakers – Part 1: General. It sets general requirements, testing procedures and documentation needed to qualify grading capacitors used on high‑voltage circuit‑breakers. The amendment clarifies test methods, mechanical and dielectric requirements, tightness checks for gas‑filled units and maintenance/information obligations for manufacturers.
Key topics and technical requirements
- Scope note: The standard excludes phase‑to‑earth capacitors used to modify Transient Recovery Voltage (TRV). It references CIGRE Technical Brochure 368 for operating‑environment studies.
- Identification & documentation: Manufacturers must supply drawings and essential data to unambiguously identify test specimens.
- Dielectric and routine tests: Dielectric tests assess internal insulation. Wet tests can be omitted when the capacitor is tested mounted on the circuit‑breaker. Initial and final capacitance measurements are taken at 1–1.2 × U (rated voltage) before and after voltage tests.
- Power‑frequency voltage test: Acceptance criteria: no external flashover, no internal breakdown. Verification by post‑test measurements of capacitance, tanδ and partial discharge.
- Temperature tests: Low/high temperature tests require dielectric routine tests before and after; samples or full‑size capacitors may be used.
- Mechanical bending test: Test bending moment M is defined with formulas for air‑insulated and immersed capacitors (uses g = 9.81 m/s² and factor 0.7). Minimum M = 2 500 Nm for air‑insulated units. Test force F is derived from M.
- Tightness / pressure cycling: Immersed capacitors undergo pressure‑cycle programs (e.g., down to ~10 Pa abs, up to 0.7 MPa abs, etc.). Tightness is checked on removal and 48 h later; no leakage allowed. Gas‑filled grading capacitors ≥1 L and >0.05 MPa rel must show leakage ≤0.5% per year.
- Maintenance & user precautions: Manufacturers must provide maintenance instructions to be included in circuit‑breaker manuals, including maintenance schedules, end‑of‑life handling and reporting of systematic defects. Users follow IEC 62271‑1 safety rules.
Practical applications
- Specifies test and acceptance criteria for grading capacitors used in high‑voltage AC circuit‑breakers to ensure reliable voltage distribution across interrupter chambers and safe long‑term operation.
- Used when qualifying new capacitor designs, performing type tests, and preparing maintenance/installation instructions.
Who uses this standard
- Capacitor manufacturers (design, testing, production)
- Circuit‑breaker manufacturers and integrators
- Independent test laboratories and certification bodies
- Utility engineers, specification writers and procurement officers
- Maintenance and asset managers for high‑voltage switchgear
Related standards
- IEC/EN 62146‑1 (base standard), IEC 62155, IEC 60068‑2‑17 (tightness detection), IEC 62271‑1 (switchgear safety), CIGRE TB 368.
Keywords: grading capacitors, high‑voltage circuit‑breakers, EN 62146‑1:2014/A1:2016, dielectric tests, mechanical bending test, tightness test, gas‑filled capacitors, maintenance.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2016
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L]PHQLþQLWRNGHO 6SORãQR ,(& $ 'RSROQLOR$
Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General
(IEC 62146-1:2013/A1:2016)
Ta slovenski standard je istoveten z: EN 62146-1:2014/A1:2016
ICS:
31.060.70 0RþQRVWQLNRQGHQ]DWRUML Power capacitors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 62146-1:2014/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2016
ICS 31.060.01; 31.060.70
English Version
Grading capacitors for high-voltage alternating current circuit-
breakers - Part 1: General
(IEC 62146-1:2013/A1:2016)
Condensateurs de répartition pour disjoncteurs à courant Spannungsausgleichskondensatoren für Hochspannungs-
alternatif haute tension - Partie 1: Généralités Wechselstrom-Leistungsschalter - Teil 1: Allgemeines
(IEC 62146-1:2013/A1:2016) (IEC 62146-1:2013/A1:2016)
This amendment A1 modifies the European Standard EN 62146-1:2014; it was approved by CENELEC on 2016-07-28. 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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62146-1:2014/A1:2016 E
European foreword
The text of document 33/583/FDIS, future IEC 62146-1:2013/A1, prepared by IEC/TC 33 “Power
capacitors and their applications” was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62146-1:2014/A1:2016.
The following dates are fixed:
(dop) 2017-04-28
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-07-28
standards conflicting with the
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 [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 62146-1:2013/A1:2016 was approved by CENELEC as a
European Standard without any modification.
IEC 62146-1 ®
Edition 1.0 2016-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Grading capacitors for high-voltage alternating current circuit-breakers –
Part 1: General
Condensateurs de répartition pour disjoncteurs à courant alternatif haute
tension –
Partie 1: Généralités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.01; 31.060.70 ISBN 978-2-8322-3476-1
– 2 – IEC 62146-1:2013/AMD1:2016
© IEC 2016
FOREWORD
This amendment has been prepared by IEC technical committee 33: Power capacitors and
their applications.
The text of this amendment is based on the following documents:
FDIS Report on voting
33/583/FDIS 33/586/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 this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1 Scope
Add, after the last dashed point of Clause 1, the following new note and paragraph:
NOTE CIGRE Technical Brochure 368 [2] presents a study about the operating environment of voltage grading
capacitors applied to high-voltage circuit-breakers.
This standard does not apply to phase-to-earth capacitors installed on the circuit-breaker to
modify the Transient Recovery Voltage.
7.4 Minimum withstand value of mechanical bending load
Replace existing Subclause 7.4 by the following new text:
7.4.1 Capacitors mounted on air insulated circuit -breaker
The test bending moment M shall be calculated as follows:
c
m 1
M = 100+ ×g× ×l
C
2 0,7
where
M is in Nm;
c
l is the length of the capacitor in m;
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...
Frequently Asked Questions
SIST EN 62146-1:2014/A1:2016 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General (IEC 62146-1:2013/A1:2016)". This standard covers: Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General (IEC 62146-1:2013/A1:2016)
Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General (IEC 62146-1:2013/A1:2016)
SIST EN 62146-1:2014/A1:2016 is classified under the following ICS (International Classification for Standards) categories: 31.060.70 - Power capacitors. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 62146-1:2014/A1:2016 has the following relationships with other standards: It is inter standard links to SIST EN 62146-1:2014, oSIST prEN IEC 62146-1:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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