EN 50588-2:2018

Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV - Part 2: Transformers with cable boxes on the high-voltage and/or low-voltage side - General requirements for transformers with rated power less than or equal to 3 150 kVA

EN 50588-2 covers, in conjunction with EN 50588-1, transformers under iii) and iv) above, up to 36 kV (the data from 24 kV to 36 kV are under consideration) and for transformers with rated power less than or equal to 3150 kVA . Further documents exist which may be used by agreement between purchaser and manufacturer for cable boxes and enclosures. The dimensional requirements for cable boxes and protective enclosures are not enclosed in this document.

Mittelleistungstransformatoren 50 Hz, mit einer höchsten Spannung für Betriebsmittel nicht über 36 kV - Teil 2: Verteiltransformatoren mit Kabelanschlusskästen auf der Ober- und/oder Unterspannungsseite - Allgemeine Anforderungen für Transformatoren mit Bemessungsleistungen bis einschliesslich 3150 kVA

EN 50588-2 behandelt in Verbindung mit EN 50588-1 die vorstehend unter iii) und iv) aufgeführten Transfor-matoren bis 36 kV (die Daten von 24 kV bis 36 kV sind in Beratung) und für Transformatoren mit einer Bemessungsleistung bis einschließlich 3 150 kVA. Auf Vereinbarung zwischen Käufer und Hersteller dürfen weitere Dokumente für Kabelanschlusskästen und Schutzhauben angewendet werden. Maßfestlegungen für Kabelanschlusskästen und Schutzhauben sind nicht in diesem Dokument enthalten.

Transformateurs 50 Hz de moyenne puissance, de tension la plus élevée pour le matériel ne dépassant pas 36 kV - Partie 2: Transformateurs raccordés par boîtes à câble côté haute tension et/ou côté basse tension - Prescriptions générales pour les transformateurs avec une puissance égale ou inférieure à 3150 kVA

L'EN 50588-2 couvre, conjointement avec l'EN 50588-1, les transformateurs relevant des situations iii) et iv) ci-dessus, jusqu'à 36 kV (les données entre 24 kV et 36 kV étant à l'étude) et les transformateurs dont la puissance assignée est inférieure ou égale à 3 150 kVA. D'autres documents existants peuvent être utilisés dans le cadre d'un accord entre l'acheteur et le fabricant concernant les boîtes à câbles et les enveloppes. Les exigences en matière de dimension des boîtes à câbles et des enveloppes de protection ne sont pas spécifiées dans le présent document.

Močnostni transformatorji srednje moči 50 Hz z najvišjo napetostjo naprave do 36 kV - 2. del: Transformatorji s kabelskimi ohišji na visokonapetostni oziroma nizkonapetostni strani - Splošne zahteve za transformatorje z največjo močjo naprave do 3150 kVA

EN 50588-2 zajema, skupaj s standardom EN 50588-1, transformatorje pod točko iii) in iv) zgoraj, do 36 kV
(upoštevajo se podatki od 24 kV do 36 kV) in za transformatorje z nazivno močjo, ki je manjša ali enaka 3150 kVA. Obstajajo dodatni dokumenti, ki se po dogovoru med kupcem in proizvajalcem lahko uporabljajo za kabelske omarice in ohišja. Dimenzijske zahteve za kabelske omarice in zaščitna ohišja niso vključene v ta dokument.

General Information

• Status: Withdrawn
• Publication Date: 15-Mar-2018
• Withdrawal Date: 24-Dec-2020
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/TC 14 - Power transformers
• Drafting Committee: CLC/TC 14 - Power transformers
• Ref Project: SIST EN 50588-2:2018 - Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV - Part 2: Transformers with cable boxes on the high-voltage and/or low-voltage side - General requirements for transformers with rated power less than or equal to 3 150 kVA

Relations

• Replaces: EN 50464-2-1:2007 - Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-1: Distribution transformers with cable boxes on the high-voltage and/or low-voltage side - General requirements
• Effective Date: 30-May-2017

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2018
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SIST EN 50464-2-1:2007
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N9GHO7UDQVIRUPDWRUMLVNDEHOVNLPLRKLãMLQDYLVRNRQDSHWRVWQLR]LURPD
QL]NRQDSHWRVWQLVWUDQL6SORãQH]DKWHYH]DWUDQVIRUPDWRUMH]QDMYHþMRPRþMR
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Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36
kV - Part 2: Transformers with cable boxes on the high-voltage and/or low-voltage side -
General requirements for transformers with rated power less than or equal to 3 150 kVA
Mittelleistungstransformatoren 50 Hz, mit einer höchsten Spannung für Betriebsmittel
nicht über 36 kV - Teil 2: Verteiltransformatoren mit Kabelanschlusskästen auf der Ober-
und/oder Unterspannungsseite -Allgemeine Anforderungen für Transformatoren mit
Bemessungsleistungen bis einschliesslich 3150 kVA
Transformateurs 50 Hz de moyenne puissance, de tension la plus élevée pour le
matériel ne dépassant pas 36 kV - Partie 2: Transformateurs raccordés par boîtes à
câble côté haute tension et/ou côté basse tension - Prescriptions générales pour les
transformateurs avec une puissance égale ou inférieure à 3150kVA
Ta slovenski standard je istoveten z: EN 50588-2:2018
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 50588-2
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2018
ICS 29.180 Supersedes EN 50464-2-1:2007
English Version
Medium power transformers 50 Hz, with highest voltage for
equipment not exceeding 36 kV - Part 2: Transformers with
cable boxes on the high-voltage and/or low-voltage side -
General requirements for transformers with rated power less
than or equal to 3 150 kVA
Transformateurs 50 Hz de moyenne puissance, de tension Mittelleistungstransformatoren 50 Hz, mit einer höchsten
la plus élevée pour le matériel ne dépassant pas 36 kV - Spannung für Betriebsmittel nicht über 36 kV - Teil 2:
Partie 2: Transformateurs raccordés par boîtes à câble côté Verteiltransformatoren mit Kabelanschlusskästen auf der
haute tension et/ou côté basse tension - Prescriptions Ober- und/oder Unterspannungsseite -Allgemeine
générales pour les transformateurs avec une puissance Anforderungen für Transformatoren mit
égale ou inférieure à 3150kVA Bemessungsleistungen bis einschliesslich 3150 kVA
This European Standard was approved by CENELEC on 2017-12-25. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard 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 European Standard 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 50588-2:2018 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative References . 5
3 Terms and Definitions . 5
4 Electrical characteristics . 6
5 Design characteristics . 6
5.1 Type of oil preservation and degree of sealing . 6
5.2 Terminal markings . 6
5.3 Provision for cable box Type 1 connections . 6
5.4 Provision for cable box Type 2 . 6
6 Transformer requirements. 6
6.1 Transformers with cable boxes, mounted on both sides . 6
6.2 Transformers with cable boxes, cover mounted . 7
6.3 Unit substation transformer, with cable boxes mounted on the same side . 7
6.4 Unit substation transformer with flange boxes, cover mounted . 7
7 Distance between bushings . 8
8 Tests . 8
European foreword
This document (EN 50588-2:2018) has been prepared by CLC/TC 14, “Power Transformers”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2018-12-25
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2020-12-25
conflicting with this document have to
be withdrawn
This document supersedes EN 50464-2-1:2007.
The EN 50588 series consists of the following parts, under the general title “Medium power
transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV”:
— Part 1: General requirements
— Part 2: Transformers with cable boxes on the high-voltage and/or low-voltage side – General
requirements for transformers with rated power less than or equal to 3150kVA
— Part 3: Transformers with cable boxes on the high-voltage and/or low-voltage side – Cable boxes
type 1 for use on distribution transformers meeting the requirements of EN 50588-2
— Part 4: Transformers with cable boxes on the high-voltage and/or low-voltage side – Cable boxes
type 2 for use on distribution transformers meeting the requirements of EN 50588-2
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 identifying any or all such patent rights.
Introduction
EN 50588-1:2017, 10.1.3 states that a medium power transformer could have different termination
features.
The following constructional situations are possible.
i) Termination in open type (oil-air) bushings without protection. This is covered by EN 50588-1,
EN 50180, EN 50386 and EN 50387.
ii) Termination in plug-in type bushings of inside or outside cone type. This is covered by EN 50588-1
and EN 50180.
iii) Termination in air filled or compound filled cable boxes or protective enclosure using open type
and/or oil/compound oil-oil bushings, as defined in EN 50588-3.
iv) Flange boxes and similar solutions using open type bushings can also be used.
1 Scope
EN 50588-2 covers, in conjunction with EN 50588-1, transformers under iii) and iv) above, up to 36 kV
(the data from 24 kV to 36 kV are under consideration) and for transformers with rated power less than
or equal to 3150kVA . Further documents exist which may be used by agreement between purchaser
and manufacturer for cable boxes and enclosures. The dimensional requirements for cable boxes and
protective enclosures are not enclosed in this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 50588-1:2017, Medium power transformers 50Hz, with highest voltage for equipment not
exceeding 36 kV – part 1: General requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. Requirements for
transformers in the scope of this document shall be classified according to the following definitions:
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
transformers with cable boxes, side mounted
transformer with e
...