Publication details
| Publication CODE |
Title |
| NBN EN 60076-3:2014 (2013-11) |
POWER TRANSFORMERS
PART 3: INSULATION LEVELS, DIELECTRIC TESTS AND EXTERNAL CLEARANCES in AIR |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3 P.. |
Description
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.
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.
|
| Class |
C52
(POWER GENERATING OR TRANSFORMING EQUIPMENT TRANSFORMERS)
|
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 60076-3:2013.
For the series NBN EN 50XXX, the standards are however complete.
|
DE version
|
EN version
|
FR version
|
|
Status
| Status |
Registered trilingual Belgian standard EN or FR or DE |
| Situation |
Currently active
Replaces
NBN EN 60076-3:2001
|
|
Origin
| Committee |
TC 14
POWER TRANSFORMERS
|
| Responsible |
Monsieur DE LEEUW Thierry, Technical Officer
Diamant Building
Bd Auguste Reyers, 80
1030
BRUXELLES
Phone: +32 2 706 85 72
E-mail: thierry.deleeuw@ceb-bec.be
|
Approval
| BEC Approval |
2013-09-04 |
| NBN Approval |
2014-01-31 |
| Belgian Official Journal |
2014-03-14 |
| Registration |
145248 |
| ICS-Code (International Standards Classification) |
29.180
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2013-09-04 |
| Date of availability (d.a.v.) |
2013-11-29 |
| Date of announcement (d.o.a.) |
2013-12-04 |
| Date of publication (d.o.p.) |
2014-06-04 |
| Date of withdrawal former edition (d.o.w.) |
2016-09-04 |
|
Correspondences with international standards
| Relation |
International standard |
Date |
| is identical to |
EN 60076-3:2013
|
2013-11-29 |
| is identical to |
IEC 60076-3:2013/ed. 3.0
|
2013-07-31 |
Relations to belgian/foreign publications
| Type |
Origin |
Code |
Date |
| Standard |
Foreign |
IEC 60050-421 |
|
| Standard |
Belgium |
NBN EN 60060-1 |
|
| Standard |
Belgium |
NBN EN 60060-2 |
|
| Standard |
Belgium |
NBN EN 60071-1 |
|
| Standard |
Belgium |
NBN EN 60076-1 |
|
| Standard |
Belgium |
NBN EN 60137 |
|
| Standard |
Belgium |
NBN EN 60270 |
|
|
