IEC 60076-11:2018
Current
The latest, up-to-date edition.
Power transformers - Part 11: Dry-type transformers
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15-08-2018
IEC 60076-11:2018 applies to dry-type power transformers (including auto-transformers) having values of highest voltage for equipment up to and including 72,5 kV and at least one winding operating at greater than 1,1 kV. This document does not apply to:
- gas-filled dry-type transformers where the gas is not air;
- single-phase transformers rated at less than 5 kVA;
- polyphase transformers rated at less than 15 kVA;
- instrument transformers;
- starting transformers;
- testing transformers;
- traction transformers mounted on rolling stock;
- flameproof and mining transformers;
- welding transformers;
- voltage regulating transformers;
- small power transformers in which safety is a special consideration.
Where IEC standards do not exist for the transformers mentioned above or for other special transformers, this document may be applicable as a whole or in parts. This second edition cancels and replaces the first edition published in 2004 and constitutes a technical revision. The main changes with regard to the previous edition are as follows:
- Extension of the scope up to 72,5kV
- Enclosure management in regards of the performance
- Management of the dielectric and thermal features with altitude
- New climatic classes for a better adaptation of customers’ need
- Establishment of the relation between location and environmental classes
- For fire behaviour classes, limitation at 1000kVA and process of test more robust
- Introduction of Seismic class
- Recommendations for amorphous transformers
Keywords: dry-type transformers
The contents of the corrigendum of March 2019 and the Interpretation sheet 1 of July 2020 have been included in this copy.
| Committee |
TC 14
|
| DevelopmentNote |
NEW CHILD IS ISH 1 2020 IS NOW ADDED.
|
| DocumentType |
Standard
|
| ISBN |
978-2-8322-5910-8
|
| Pages |
125
|
| ProductNote |
THIS STANDARD ALSO IDENTICAL TO EN IEC 60076-11 NEW CHILD IS ISH 1 2020 IS NOW ADDED.
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| IS 2026 : Part 11 : 2021 | Identical |
| DIN EN IEC 60076-11:2020-02 | Identical |
| OVE EN IEC 60076-11:2020 03 01 | Identical |
| BS EN IEC 60076-11:2018 | Equivalent |
| AS/NZS IEC 60076.11:2024 | Identical |
| UNE-EN IEC 60076-11:2021 | Identical |
| I.S. EN IEC 60076-11:2018 | Equivalent |
| CEI EN 60137 : 2018 | Insulated bushings for alternating voltages above 1 000 V (IEC 60137:2017)<br> |
| CEI EN IEC 61558-2-14:2025-04 | Safety of transformers, reactors, power supply units and combinations thereof - Part 2-14: Particular requirements and tests for variable transformers and power supply units incorporating variable transformers for general applications |
| CEI EN IEC 61936-1:2024 | Power installations exceeding 1 kV AC and 1,5 kV DC Part 1: AC |
| CEI EN IEC 61558-2-10:2024-09 | Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V |
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