BS EN 50216-1-2002 Power transformers and reactor fittings - General《电力变压器和反应堆配件 总则》.pdf

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1、BRITISH STANDARD BS EN 50216-1:2002 Power transformer and reactor fittings Part 1: General The European Standard EN 50216-1:2002 has the status of a British Standard ICS 29.180 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 50216-1:2002 This British Standard, having been

2、 prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 12 April 2002 BSI 12 April 2002 ISBN 0 580 39498 0 National foreword This British Standard is the official English language

3、version of EN 50216-1:2002. The UK participation in its preparation was entrusted to Technical Committee PEL/14, Power transformers, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standa

4、rds which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard

5、 does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the respon

6、sible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN titl

7、e page, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50216-1 NORME EUROPENNE EUROPISCHE NORM January 2002 CENELEC European Committee for Ele

8、ctrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref

9、. No. EN 50216-1:2002 E ICS 29.180 English version Power transformer and reactor fittings Part 1: General Accessoires pour transformateurs de puissance et bobines dinductance Partie 1: Gnralits Zubehr fr Transformatoren und Drosselspulen Teil 1: Allgemeines This European Standard was approved by CEN

10、ELEC on 2001-07-01. 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 standa

11、rds may be obtained on application to the Central Secretariat 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 notif

12、ied to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,

13、Sweden, Switzerland and United Kingdom.EN 50216-1:2002 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 14, Power transformers. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50216-1 on 2001-07-01. The following dates were

14、 fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-08-01 _ 3 EN 50216-1:2002 Contents Intro

15、duction 4 1 Scope .4 2 Normative references4 3 Service conditions 5 3.1 Environmental conditions 5 3.2 Degree of protection5 3.3 Corrosion.5 3.4 Insulating liquid characteristics6 4 Dielectric strength of contacts (according to EN 60255-5) 6 5 Seismic withstand .6 6 Tests.6 6.1 Routine test .6 6.2 T

16、ype test7EN 50216-1:2002 4 Introduction EN 50216 is divided into several parts, the first covering general features while the remaining parts cover different accessories. This EN will consist of the following parts, under the general title “Power transformer and reactor fittings”: Part 1: General Pa

17、rt 2: Gas and oil actuated relay for liquid immersed transformers and reactors with conservator Part 3: Protective relay for hermetically sealed liquid-immersed transformers and reactors without gaseous cushion Part 4: Basic accessories (earthing terminal, drain and filling devices, thermometer pock

18、et, wheel assembly) Part 5: Liquid level, pressure devices and flow indicators Part 6: Cooling equipment Removable radiators for oil-immersed transformers Part 7: Electric pumps for transformer oil 1 Scope This European Standard covers the general conditions concerning accessories for oil immersed a

19、nd dry-type transformers and reactors. Part 1 describes in particular general conditions of service, electrical characteristics of contacts, dynamic characteristics, mechanical construction. They are used for stationary, non-weather protected locations. 2 Normative references This European Standard

20、incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to thi

21、s European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments). EN 60068-3-3 1993 Environmental testing - Part 3: Guidance - Seismic test methods for equipments (IEC 60068-3-3:1991) E

22、N 60076-1 1997 Power transformers - Part 1: General (IEC 60076-1:1993, mod.) EN 60255-5 2001 Electrical relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests (IEC 60255-5:2000) 5 EN 50216-1:2002 EN 60529 + corr. May 1991 1993 Degrees of prote

23、ction provided by enclosures (IP Code) (IEC 60529:1989) EN 60721-3-4 1995 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 4: Stationary use at non-weather protected locations (IEC 60721-3-4:1995) IEC 60296 1982

24、Specification for unused mineral insulating oils for transformers and switchgear 3 Service conditions 3.1 Environmental conditions The severities of the environmental conditions are as classified in EN 60721-3-4. The classes which are appropriate for the accessories are as defined in Table 1. By agr

25、eement between manufacturer and purchaser, other classes may be given in the relevant accessory specification. Table 1 - Environmental classes K Climatic conditions 4 K 2 a Z Special climatic conditions 4 Z 2 + 4 Z 4 + 4 Z 7 B Biological conditions 4 B 1 C Chemically active substances 4 C 2 S Mechan

26、ically active substances 4 S 3 M Mechanical conditions b 4 M 4 aExcept the minimum ambient temperature which is 25 C. bAccessories may be fitted with elastic suspension to meet this requirement. 3.2 Degree of protection The degree of protection of the connecting box for outdoor installation shall be

27、 at least IP 44 (or IP 54 if requested) according to EN 60529. 3.3 Corrosion The materials used for the construction of the transformer accessories or the surface treatment shall be oil resistant and suitable to withstand the environmental conditions given in 3.1.EN 50216-1:2002 6 3.4 Insulating liq

28、uid characteristics This subclause concerns only the accessories which are in contact with the insulating liquid. If the insulating liquid and its maximum temperature are not specified, mineral oil according to IEC 60296 class I or class II shall be considered as the insulating liquid, with a maximu

29、m temperature of 115 C. The accessories shall operate with the kinematic viscosity of the insulating liquid equal to or below 1 100 mm/s. 4 Dielectric strength of contacts (according to EN 60255-5) The minimum dielectric withstand strength is given in Table 2. Table 2 - Dielectric strength of contac

30、ts Short duration power frequency withstand voltage 1 min kV (r.m.s.) Lightning impulse withstand voltage kV (peak) Between circuits and earth 2 4 Between contacts in open position 1 3 By agreement between manufacturer and purchaser, other values may be given in the relevant accessory specification.

31、 5 Seismic withstand When the accessory is specified with a seismic withstand without specified acceleration values, the performance level shall be chosen in accordance with EN 60068-3-3 as follows: classification 0 (4.3); level II (7.1). 6 Tests The definitions concerning testing are given in EN 60

32、076-1. The liquid used for the tests shall be compatible with that used in the transformer (see 3.4). 6.1 Routine test The rated short duration power frequency withstand test shall be carried out according to Table 2. 7 EN 50216-1:2002 6.2 Type test Where type tests are required, the manufacturer an

33、d the purchaser shall specify which of the following tests shall be performed: checking of the switching capacity of contacts. Values shall be given in the relevant accessory specification; impulse withstand test of electrical circuits according to Table 2 (wave shape 1,2/50 s); verification of no m

34、alfunctioning of contacts (opening or closing) under mechanical shock waves, seismic conditions. The tests shall be carried out for longitudinal and vertical directions separately.BS EN 50216-1:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent nat

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