1、 INTERNATIONAL STANDARD IEC60214-2 First edition2004-10 Tap-changers Part 2:Application guide Reference number IEC 60214-2:2004(E)Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1
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6、ions,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publicati
7、on or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 INTERNATIONAL STANDARD IEC60214-2 First edition2004-10 Tap-changers Part 2:Application guide IEC 2004 Copyright-all rights reserved No part of this publication may
8、be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+4
9、1 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch W For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission 2 60214-2 IEC:2004(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Terms and definitions.7 4 Sym
10、bols and abbreviations.7 5 Types of tap-changer.8 5.1 General.8 5.2 On-load tap-changers.8 5.3 Off-circuit tap-changers.15 5.4 Liquid-immersed tap-changers.15 5.5 Dry-type tap-changers.16 5.6 Other types.17 5.7 Protective devices.18 6 Selection of tap-changers.21 6.1 General.21 6.2 On-load tap-chang
11、ers.22 6.3 Off-circuit tap-changers.27 7 Location of liquid-immersed tap-changers.29 7.1 Tap selectors.29 7.2 Diverter and selector switches.29 8 Fittings.29 8.1 Valves,air-release vents and liquid sampling devices.29 8.2 Liquid level gauges.29 8.3 Low liquid level alarms.30 8.4 Nameplate and other
12、plates.30 8.5 Devices to aid maintenance.30 8.6 Dehydrating breathers.30 9 Field service(operation,maintenance and monitoring).30 9.1 Operation.30 9.2 Maintenance.32 9.3 Monitoring in service.32 10 Information to be provided by the transformer manufacturer.34 10.1 Information required at the enquiry
13、 or order stage for an on-load tap-changer.34 10.2 Information required with enquiry or order for off-circuit tap-changers.36 10.3 Documentation.36 11 Protection and safety.37 11.1 Protection.37 11.2 Safety aspects.37 11.3 Immersing medium.37 60214-2 IEC:2004(E)3 Figure 1 External separate selector
14、and diverter compartments(for mounting on the end or side of the transformer).9 Figure 2 External mounted selector switch tap-changer(for mounting on the end or side of the transformer).10 Figure 3 External mounted in-tank with separate barrier board.10 Figure 4 In-tank separate selector and diverte
15、r switch.12 Figure 5 In-tank selector switch tap-changer.13 4 60214-2 IEC:2004(E)INTERNATIONAL ELECTROTECHNICAL COMMISSION _ TAP-CHANGERS Part 2:Application guide FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national elec
16、trotechnical committees(IEC National Committees).The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other activities,IEC publishes International Standards,Technical Specifications,Technical Reports,Publicly Available Specifications(PAS)and Guides(hereafter referred to as“IEC Publication(s)”).Their preparation is entrusted to technical committees;any IEC National Committee in