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BS EN 50541-1:2011

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Three phase dry-type distribution transformers 50 Hz, from 100 kVA to 3150 kVA, with highest voltage for equipment not exceeding 36 kV General requirements

Available format(s)

Hardcopy , PDF

Superseded date

31-03-2017

Language(s)

English

Published date

31-07-2011

€231.38
Excluding VAT

1 Scope
2 Normative references
3 Electrical characteristics
4 Tests
5 Design requirements
6 Terminals
7 Enclosure
8 Overall dimensional indications and accessories
9 Efficiency and drop voltage at reference temperature
Annex A (informative) - Capitalisation evaluation
Bibliography

Specifies dry type transformers from 100 kVA to 3150 kVA intended for operation in three phases distribution networks, for indoor continuous service, 50 Hz, natural cooling, with two windings: - a primary (high voltage) winding with a highest voltage for equipment of 3,6 kV to 36 kV; - a secondary (low voltage) winding with a highest voltage for equipment not exceeding 1,1 kV.

Committee
PEL/14
DevelopmentNote
Supersedes BS 7844-1(1996), BS 7844-2(1996) & 09/30211604 DC. (07/2011)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

This European Standard covers dry type transformers from 100 kVA to 3 150 kVA intended for operation in three phases distribution networks, for indoor continuous service, 50 Hz, natural cooling, with two windings:

  • a primary (high voltage) winding with a highest voltage for equipment of 3,6 kV to 36 kV;

  • a secondary (low voltage) winding with a highest voltage for equipment not exceeding 1,1 kV.

For outdoor application, special design or enclosure (enclosure with adapted IP and IK degrees protections) should be requested.

NOTE 1 This European Standard may be applied, as a whole or in part to transformers having windings with more than one rated voltage. In this case the rated power for each coupling ratio should be specified by the purchaser.

NOTE 2 For dry type transformers installed in power generating plants, additional requirements, not covered by this European Standard, and alternative requirements may be specified.

NOTE 3 For dry type transformers dedicated to wind turbines applications additive requirements are specified in EN 60076-16.

The object of this European Standard is to lay down requirements related to electrical characteristics, dimensions and designs of three phases distribution dry type transformers. These transformers should be in accordance with EN 60076-11 for general requirements.

Standards Relationship
EN 50541-1:2011 Identical

EN 62262:2002 Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code)
IEC 62271-202:2014 High-voltage switchgear and controlgear - Part 202: High-voltage/ low-voltage prefabricated substation
EN 60076-4:2002 Power transformers - Part 4: Guide to the lightning impulse and switching impulse testing - Power transformers and reactors
IEC TR 60616:1978 Terminal and tapping markings for power transformers
EN 50387:2002 Busbar bushings up to 1 kV and from 1,25 kA to 5 kA, for liquid filled transformers
EN 60076-5:2006 Power transformers - Part 5: Ability to withstand short-circuit
EN 60076-11:2004 Power transformers - Part 11: Dry-type transformers
IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit
EN 62271-202:2014/AC:2014 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 202: HIGH-VOLTAGE/LOW-VOLTAGE PREFABRICATED SUBSTATION (IEC 62271-202:2014)
EN 50386:2010/A1:2013 BUSHINGS UP TO 1 KV AND FROM 250 A TO 5 KA, FOR LIQUID FILLED TRANSFORMERS
IEC 60076-4:1976 Power transformers - Part 4: Tappings and connections
IEC 60076-12:2008 Power transformers - Part 12: Loading guide for dry-type power transformers
EN 50180:2010 Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers – Part 1: General requirements for bushings
EN 60076-10:2016 Power transformers - Part 10: Determination of sound levels
IEC 60076-3:2013 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
IEC 60076-1:2011 Power transformers - Part 1: General
IEC 62262:2002 Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code)
EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
IEC 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
EN 60076-16:2011 Power transformers - Part 16: Transformers for wind turbines applications
EN 50181:2010 Plug-in type bushings above 1 kV up to 52 kV and from 250 A to 2,50 kA for equipment other than liquid filled transformers
EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
EN 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
IEC 60076-16:2011 Power transformers - Part 16: Transformers for wind turbine applications

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