Cover IEC 60076-3:2013

IEC 60076-3:2013

Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air

Ausgabedatum: 2013-07
Edition: 3.0
Sprache: EN-FR - zweisprachig englisch/französisch
Seitenzahl: 118 VDE-Artnr.: 220120


IEC 60076-3:2013 specifies the insulation requirements and the corresponding insulation tests with reference to specific windings and their terminals. This International Standard applies to power transformers as defined by IEC 60076-1. It also recommends external clearances in air. It gives details of the applicable dielectric tests and minimum dielectric test levels. Recommended minimum external clearances in air between live parts and between live parts and earth are given for use when these clearances are not specified by the purchaser. For categories of power transformers and reactors which have their own IEC standards, this standard is applicable only to the extent in which it is specifically called up by cross reference in the other standards. This third edition of IEC 60076-3 cancels and replaces the second edition published in 2000, and constitutes a technical revision. The main changes from the previous edition are as follows:
- Three categories of transformer are clearly identified together with the relevant test requirements, these are summarised in Table 1.
- Switching impulse levels are defined for values of Um > 72,5 kV.
- The procedure for Induced voltage tests with PD has been revised to ensure adequate phase to phase test voltages.
- The AC withstand test has been redefined (LTAC instead of ACSD).
- Induced voltage tests are now based on Ur rather than Um.
- New requirements for impulse waveshape (k factor) have been introduced.
- Tables of test levels have been merged and aligned with IEC 60071-1:2010.
- Additional test levels have been introduced for Um > 800 kV.
- A new Annex E has been introduced, which sets out the principles used in assigning the tests, test levels and clearances in air.

Buchempfehlungen zu dieser IEC-Norm

Buchtitel Format
Bergmann, Arno


Normgerecht errichten, betreiben, herstellen und konstruieren Erläuterungen zu den Normen der Reihe DIN EN 61400 (VDE 0127) und DIN EN 60076-1 (VDE 0532-76-16) und unter Berücksichtigung der VDE- Anwendungsregel VDE-AR-N 4105 und weiterer Regelwerke
VDE-Schriftenreihe – Normen verständlich, Band 158

2015, 116 Seiten, Din A5, Broschur

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CAE in der Energieverteilung
Brechtken, Dirk

CAE in der Energieverteilung

Projektierung von Niederspannungsanlagen

2013, XIII, 296 Seiten, 170 x 240 mm, Broschur

Dieser Buchtitel ist auch als E-Book (PDF) erhältlich
Fachbuch eBook (PDF) Kombi-Fassung - Buch und E-Book