1、INTERNATIONALSTANDARDIEC60044-8First edition2002-07Instrument transformers Part 8:Electronic current transformersTransformateurs de mesure Partie 8:Transformateurs de courant lectroniquesReference numberIEC 60044-8:2002(E)Copyright International Electrotechnical Commission Provided by IHS under lice
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8、entre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-INTERNATIONALSTANDARDIEC60044-8First edition2002-07Instrument t
9、ransformers Part 8:Electronic current transformersTransformateurs de mesure Partie 8:Transformateurs de courant lectroniques IEC 2002 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and
10、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:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chXBFor price,see current cataloguePRICE CODECommission Ele
11、ctrotechnique InternationaleInternational Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-2 60044-8 IEC:2002(E)CONTENTSFOREWORD.61Scope.71.1General.7
12、1.2General block diagram of electronic current transformers.81.3General block diagram of electronic transformers with a digital output.92Normative references.93Definitions.123.1General definitions.123.2Additional definitions for measuring electronic current transformers.193.3Additional definitions f
13、or protective electronic current transformers.193.4Additional definitions for digital output.223.5Additional definitions for analogue voltage output.233.6Index of main definitions and abbreviations.234Normal and special service conditions.244.1General.244.2Normal service conditions.254.3Special serv
14、ice conditions.264.4System earthing.285Ratings.285.1General ratings.285.2Standard values for rated phase offset.325.3Rating for digital output.325.4Rating for analogue voltage output.336Design requirements.346.1General design requirements.346.2Design requirements for digital output.436.3Design requi
15、rements for analogue voltage output.607Classification of tests.607.1General.607.2Type tests.607.3Routine tests.617.4Special tests.628Type test.628.1Short-time current tests.628.2Temperature-rise test.638.3Impulse tests on primary terminals.638.4Wet test for outdoor type electronic current transforme
16、rs.658.5RIV tests.658.6Transmitted overvoltage test.658.7Low-voltage components voltage withstand test.668.8EMC tests.678.9Accuracy test.708.10Additional accuracy tests for protective electronic current transformers.728.11Verification of the protection.728.12Tightness tests.738.13Vibration tests.738.14Additional type test for digital output.74Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without lic
