untitled Li ce ns ed C op y F U LL N A M E , D A T E , U nc on tr ol le d C op y, ( c) B S I BRITISH STANDARD BS EN 50464 2 1 2007 Three phase oil immersed distribution transformers 50 Hz, from 50 kVA[.]
Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI BRITISH STANDARD Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 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 The European Standard EN 50464-2-1:2007 has the status of a British Standard ICS 29.180 12&23 12 kV & ≤ 24 kV Hole sizes in cable boxes to be included in EN 50464-2-2 All dimensions are in mm unless otherwise indicated Figure – Transformer with cable boxes, Type side mounted – Limiting dimensions - 10 - Without boxes EN 50464-2-1:2007 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI PLAN VIEW LV flange HV flange Shaded area indicates maximum protection beyond tank walls For ≤ 12 kV only For > 12 kV ≤ 24 kV to be agreed between purchaser & manufacturer Stable fixing position SIDE VIEW 14 M12 × 40 LG studs 16 M12 × 55 LG studs Cut Cut Cut Cut LV FLANGE HV FLANGES for partial and fully insulated cable box only Rating kVA A max B max *C H max 315 800 970 320 700 500 900 970 320 750 800 100 970 320 800 000 300 970 320 850 600 To be agreed between manufacturer and purchaser 500 To be agreed between manufacturer and purchaser * Distance C can be altered at a purchaser’s request All dimensions are in mm unless otherwise indicated Figure – Unit substation transformer, with cable boxes Type side mounted – Limiting dimensions - 11 - EN 50464-2-1:2007 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI Bushing not mandatory Oil Cover Tank Full or partial insulation Flange as Fig Figure – Transformers with cable boxes, Type cover mounted Position and direction of the cable studs otherwise as shown above can be subject to agreement between manufacturer and purchaser Figure – Cover mounted, air filled common HV/LV cable box Type EN 50464-2-1:2007 - 12 - Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI This flange box can be divided into two independent parts if required or combined with cable box Type of Figure W, H and L are subject to agreement between manufacturer and purchaser Typical dimensions KVA L B max 315 to 630 100 050 800 to 600 400 350 All dimensions are in mm unless otherwise indicated Figure – Unit substation transformers, cover mounted ∅ 14 LV and HV flange All dimensions are in mm unless otherwise indicated Figure – Typical flange for flange box blank Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI BS EN 50464-2-1:2007 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover Tel: +44 (0)20 8996 9000 Fax: +44 (0)20 8996 7400 BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 Email: orders@bsi-global.com Standards are also available from the BSI website at http://www.bsi-global.com In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service Various BSI electronic information services are also available which give details on all its products and services Contact the Information Centre Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: info@bsi-global.com Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards For details of these and other benefits contact Membership Administration Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: membership@bsi-global.com Information regarding online access to British Standards via British Standards Online can be found at http://www.bsi-global.com/bsonline Further information about BSI is available on the BSI website at http://www.bsi-global.com Copyright Copyright subsists in all BSI publications BSI also holds the copyright, in the UK, of the publications of the international standardization bodies Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI BSI 389 Chiswick High Road London W4 4AL This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained Details and advice can be obtained from the Copyright & Licensing Manager Tel: +44 (0)20 8996 7070 Fax: +44 (0)20 8996 7553 Email: copyright@bsi-global.com