SIST EN 60076-3:2014/A1:2018
(Amendment)Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
Leistungstransformatoren - Teil 3: Isolationspegel, Spannungsprüfungen und äußere Abstände in Luft
Transformateurs de puissance - Partie 3: Niveaux d'isolement, essais diélectriques et distances d'isolement dans l'air
Močnostni transformatorji - 3. del: Izolacijski nivoji, dielektrični preskusi in zunanje zračne razdalje - Dopolnilo A1
General Information
- Status
- Published
- Publication Date
- 03-Sep-2018
- Technical Committee
- ETR - Power transformers
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 06-Jul-2018
- Due Date
- 10-Sep-2018
- Completion Date
- 04-Sep-2018
Relations
- Effective Date
- 01-Oct-2018
Overview
EN 60076-3:2013/A1:2018 (adoption of IEC 60076-3:2013 with Amendment A1) is the European standard that defines insulation levels, dielectric tests and external clearances in air for power transformers. Approved by CENELEC in April 2018, this amendment clarifies test requirements and updates specific test and clearance provisions for manufacturers, utilities and test laboratories involved in transformer design, verification and acceptance.
Key topics and requirements
- Insulation levels - Establishes how transformers are categorized and tested according to the highest-voltage winding (Table 1 title revised to reflect U of the highest voltage winding).
- Dielectric tests - Defines routine, type and special dielectric testing methods. Amendment A1 updates the routine test for lightning impulses:
- Chopped-wave lightning impulse (LIC) is required on all line terminals with U > 170 kV (Clause 7.3.3.1).
- Standard lightning impulse (LI) is required on line terminals with U ≤ 170 kV; purchasers may request LIC for these as well.
- Line terminal AC withstand (LTAC) - Administrative correction noted (French language correction referenced).
- External clearances in air - Clearances limits revised in the amendment (E.4: change from “≤ 750 kV” to “< 850 kV” in the applicable paragraph).
- Test procedure coordination - The standard recommends that test connections and procedures be discussed at contract or design-review stage, especially for complicated transformers, non-uniformly insulated windings and induced-voltage or impulse arrangements (C.1).
Note: Test voltages and detailed procedures are specified within the full standard and supporting tables (e.g., Table 2 referenced for test voltages).
Practical applications
- Specifying acceptance and routine tests in procurement contracts for power transformers.
- Guiding design decisions for insulation coordination and physical clearances in air.
- Providing test laboratories and manufacturers with the required dielectric test methods and criteria for type and routine testing.
- Helping utilities, EPCs and certification bodies ensure safety, compliance and interchangeability across installations and the European market.
Who should use this standard
- Transformer manufacturers and design engineers
- High-voltage test laboratories and quality inspectors
- Utilities and grid operators specifying or accepting transformer equipment
- Procurement teams and contract drafters
- Certification bodies and compliance assessors
Related standards
This document is an amendment to EN/IEC 60076-3 (Power transformers - Part 3). Users should also consider other parts of EN/IEC 60076 for mechanical, thermal and safety requirements when specifying or testing transformers.
Keywords: EN 60076-3:2013/A1:2018, IEC 60076-3, power transformers, insulation levels, dielectric tests, external clearances, lightning impulse, chopped wave (LIC), transformer testing.
Frequently Asked Questions
SIST EN 60076-3:2014/A1:2018 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air". This standard covers: Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
SIST EN 60076-3:2014/A1:2018 is classified under the following ICS (International Classification for Standards) categories: 29.180 - Transformers. Reactors. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 60076-3:2014/A1:2018 has the following relationships with other standards: It is inter standard links to SIST EN 60076-3:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 60076-3:2014/A1:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2018
0RþQRVWQLWUDQVIRUPDWRUMLGHO ,]RODFLMVNLQLYRMLGLHOHNWULþQLSUHVNXVLLQ
]XQDQMH]UDþQHUD]GDOMH'RSROQLOR$
Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in
air
Leistungstransformatoren - Teil 3: Isolationspegel, Spannungsprüfungen und äußere
Abstände in Luft
Transformateurs de puissance - Partie 3: Niveaux d'isolement, essais diélectriques et
distances d'isolement dans l'air
Ta slovenski standard je istoveten z: EN 60076-3:2013/A1:2018
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 60076-3:2013/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2018
ICS 29.180
English Version
Power transformers - Part 3: Insulation levels, dielectric tests
and external clearances in air
(IEC 60076-3:2013/A1:2018)
Transformateurs de puissance - Partie 3: Niveaux Leistungstransformatoren - Teil 3: Isolationspegel,
d'isolement, essais diélectriques et distances d'isolement Spannungsprüfungen und äußere Abstände in Luft
dans l'air (IEC 60076-3:2013/A1:2018)
(IEC 60076-3:2013/A1:2018)
This amendment A1 modifies the European Standard EN 60076-3:2013; it was approved by CENELEC on 2018-04-26. 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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60076-3:2013/A1:2018 E
European foreword
The text of document 14/947/FDIS, future edition 3 of IEC 60076-3:2013/A1, prepared by IEC/TC 14
"Power transformers" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN 60076-3:2013/A1:2018.
The following dates are fixed:
(dop) 2019-01-26
• 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) 2021-04-26
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 shall not be held responsible for identif
...
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