【IEC标准】IEC 60034-18-21-2012

IEC 60034-18-21 Edition 2.0 2012-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Rotating electrical machines Part 18-21: Functional evaluation of insulation systems Test procedures for wire-wound windings Thermal evaluation and classification Machines lectriques tournantes Partie 18-21: Evaluation fonctionnelle des systmes disolation Procdures dessai pour enroulements fils Evaluation thermique et classification IEC 60034-18-21:2012 colour inside Copyright International Electrotechnical Commission Provided by IHS under license with IEC Not for Resale, 02/20/2016 04:29:24 MSTNo reproduction or networking permitted without license from IHS -,-,- THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. 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Copyright International Electrotechnical Commission Provided by IHS under license with IEC Not for Resale, 02/20/2016 04:29:24 MSTNo reproduction or networking permitted without license from IHS -,-,- IEC 60034-18-21 Edition 2.0 2012-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Rotating electrical machines Part 18-21: Functional evaluation of insulation systems Test procedures for wire-wound windings Thermal evaluation and classification Machines lectriques tournantes Partie 18-21: Evaluation fonctionnelle des systmes disolation Procdures dessai pour enroulements fils Evaluation thermique et classification INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 29.160 PRICE CODE CODE PRIX ISBN 978-2-83220-337-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside Copyright International Electrotechnical Commission Provided by IHS under license with IEC Not for Resale, 02/20/2016 04:29:24 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 60034-18-21 IEC:2012 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope . 9 2 Normative references . 9 3 General considerations . 9 3.1 Reference insulation system . 9 3.2 Test procedures . 10 4 Test objects and test specimens . 10 4.1 Construction of test objects . 10 4.2 Verification of effects of minor changes in insulation systems . 11 4.3 Number of test specimens . 11 4.4 Quality control . 11 4.5 Initial diagnostic tests . 11 5 Test procedures . 12 5.1 General principles of diagnostic tests . 12 5.2 Ageing temperatures and sub-cycle lengths . 12 5.3 Methods of heating . 13 5.4 Thermal ageing sub-cycle . 14 6 Diagnostic sub-cycle. 14 6.1 Conditioning sequence . 14 6.2 Mechanical conditioning . 14 6.3 Moisture conditioning . 15 6.4 Voltage tests . 15 6.5 Other diagnostic tests . 15 7 Reporting and functional evaluation of data from candidate and reference systems . 16 7.1 General . 16 7.2 Determining qualification . 16 7.2.1 Overview . 16 7.2.2 Case A: Qualification for the same class temperature and same expected service life . 17 7.2.3 Case B: Qualification for the same class temperature and a different expected service life . 17 7.2.4 Case C: Qualification for a different class temperature and same expected service life . 18 7.2.5 Case D: Qualification for a different class temperature and different expected service life . 19 7.2.6 Non-linearity of regression lines . 20 7.2.7 Reduced evaluation . 20 8 Procedure 1: Motorette test procedure . 21 8.1 General . 21 8.1.1 Test object definition . 21 8.1.2 Test procedure . 21 8.2 Test objects . 21 8.2.1 Construction of test objects . 21 8.2.2 Number of test objects . 21 8.2.3 Quality assurance tests . 21 Copyright International Electrotechnical Commission Provided by IHS under license with IEC Not for Resale, 02/20/2016 04:29:24 MSTNo reproduction or networking permitted without license from IHS -,-,- 60034-18-21 IEC:2012 3 8.2.4 Initial diagnostic tests . 22 8.3 Thermal ageing sub-cycle . 22 8.3.1 Ageing temperatures and sub-cycle lengths . 22 8.3.2 Means of heating . 22 8.3.3 Ageing procedure . 22 8.4 Diagnostic sub-cycle . 22 8.4.1 General . 22 8.4.2 Mechanical conditioning . 22 8.4.3 Moisture conditioning . 22 8.4.4 Voltage test . 22 8.4.5 Other diagnostic tests . 23 8.5 Analyzing, reporting and classification . 23 9 Procedure 2: Motor test procedure . 23 9.1 General . 23 9.1.1 Test object definition . 23 9.1.2 Test procedure . 23 9.2 Test objects . 24 9.2.1 Construction of test objects . 24 9.2.2 Number of test objects . 24 9.2.3 Quality assurance tests . 24 9.2.4 Initial diagnostic tests . 24 9.3 Thermal ageing sub-cycle . 24 9.3.1 Ageing temperatures and sub-cycle lengths . 24 9.3.2 Means of heating . 24 9.3.3 Ageing procedure . 25 9.3.4 Mechanical stresses during the thermal ageing sub-cycle . 25 9.4 Diagnostic sub-cycle . 25 9.4.1 Mechanical conditioning . 25 9.4.2 Moisture conditioning . 26 9.4.3 Voltage withstand test . 26 9.4.4 Other diagnostic tests . 26 9.5 Analyzing, reporting and classification . 27 10 Procedure 3: Test procedure for stator windings in slots . 27 10.1 General . 27 10.1.1 Test object definition . 27 10.1.2 Test procedures . 27 10.2 Test objects . 27 10.2.1 Construction of test objects . 27 10.2.2 Number of test specimens . 27 10.2.3 Quality assurance tests . 27 10.2.4 Initial diagnostic tests . 27 10.3 Thermal ageing sub-cycle . 27 10.3.1 Ageing temperatures and sub-cycle lengths . 2