1、 IEC 60947-4-3 Edition 2.0 2014-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Low-voltage switchgear and controlgear Part 4-3: Contactors and motor-starters AC semiconductor controllers and contactors for non-motor loads Appareillage basse tension Partie 4-3: Contacteurs et dmarreurs de moteurs Gra
2、dateurs et contacteurs semiconducteurs pour charges, autres que des moteurs, courant alternatif IEC 60947-4-3:2014-05(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
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20、ARD NORME INTERNATIONALE Low-voltage switchgear and controlgear Part 4-3: Contactors and motor-starters AC semiconductor controllers and contactors for non-motor loads Appareillage basse tension Partie 4-3: Contacteurs et dmarreurs de moteurs Gradateurs et contacteurs semiconducteurs pour charges, a
21、utres que des moteurs, courant alternatif INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XC ICS 29.130.20, 31.180 PRICE CODE CODE PRIX ISBN 978-2-8322-1567-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Elec
22、trotechnique 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. 2 IEC 60947-4-3:2014 IEC 2014 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normativ
23、e references 10 3 Terms, definitions, symbols and abbreviations . 10 3.1 Terms and definitions concerning a.c. semiconductor (non-motor-load) control devices . 11 3.1.1 AC semiconductor controllers and contactors (solid-state contactors) (see Figure 1) . 11 3.1.2 Hybrid controllers and contactors (s
24、ee Figure 1) . 14 3.2 Vacant . 18 3.3 Symbols and abbreviations 18 4 Classification . 18 5 Characteristics of a.c. semiconductor controllers and contactors . 19 5.1 Summary of characteristics 19 5.2 Type of equipment . 19 5.3 Rated and limiting values for main circuits . 22 5.3.1 Rated voltages . 22
25、 5.3.2 Currents . 22 5.3.3 Rated frequency . 22 5.3.4 Rated duty 22 5.3.5 Normal load and overload characteristics . 23 5.3.6 Rated conditional short-circuit current . 24 5.4 Utilization category 24 5.4.1 Assignment of ratings based on the results of tests 25 5.5 Control circuits . 26 5.6 Auxiliary
26、circuits . 26 5.7 Vacant . 26 5.8 Coordination with short-circuit protective devices (SCPD) 26 6 Product information . 26 6.1 Nature of information . 26 6.2 Marking 28 6.3 Instructions for installation, operation and maintenance . 28 7 Normal service, mounting and transport conditions 28 7.1 Normal
27、service conditions 28 7.1.1 Ambient air temperature . 28 7.1.2 Altitude . 28 7.1.3 Atmospheric conditions . 28 7.1.4 Shock and vibrations 29 7.2 Conditions during transport and storage . 29 7.3 Mounting 29 7.4 Electrical system disturbances and influences . 29 8 Constructional and performance requir
28、ements . 29 8.1 Constructional requirements 29 8.1.1 General 29 IEC 60947-4-3:2014 IEC 2014 3 8.1.2 Materials 29 8.1.3 Current-carrying parts and their connections 29 8.1.4 Clearances and creepage distances . 29 8.1.5 Actuator 30 8.1.6 Indication of the contact position 30 8.1.7 Additional requireme
29、nts for equipment suitable for isolation 30 8.1.8 Terminals . 30 8.1.9 Additional requirements for equipment provided with a neutral pole 30 8.1.10 Provisions for protective earthing 30 8.1.11 Enclosures for equipment . 30 8.1.12 Degrees of protection of enclosed equipment . 30 8.1.13 Conduit pull-o
30、ut, torque and bending with metallic conduits 30 8.2 Performance requirements . 30 8.2.1 Operating conditions . 30 8.2.2 Temperature rise 32 8.2.3 Dielectric properties 34 8.2.4 Normal load and overload performance requirements . 35 8.2.5 Coordination with short-circuit protective devices . 42 8.3 E
31、MC requirements . 42 8.3.1 General 42 8.3.2 Emission . 43 8.3.3 Immunity . 43 9 Tests . 45 9.1 Kinds of tests . 45 9.1.1 General 45 9.1.2 Type tests . 45 9.1.3 Routine tests 45 9.1.4 Sampling tests 45 9.1.5 Special tests . 46 9.2 Compliance with constructional requirements . 46 9.3 Compliance with p
32、erformance requirements . 46 9.3.1 Test sequences 46 9.3.2 General test conditions . 47 9.3.3 Performance under no load, normal load and overload conditions . 47 9.3.4 Performance under short-circuit conditions . 54 9.3.5 Disponible 58 9.4 General 58 9.4.1 EMC emission tests 58 9.4.2 EMC immunity te
33、sts 59 9.5 Routine and sampling tests 61 9.5.1 General 61 9.5.2 Operation and operating limits 61 9.5.3 Dielectric tests 61 Annex A (normative) Marking and identification of terminals 62 A.1 General 62 A.2 Marking and identification of terminals of controller and contactors 62 A.2.1 Marking and iden
34、tification of terminals of main circuits . 62 4 IEC 60947-4-3:2014 IEC 2014 A.2.2 Marking and identification of terminals of control circuits 62 A.2.3 Marking and identification of auxiliary circuits . 62 Annex B (informative) Typical service conditions for controllers and contactors . 65 B.1 Contro
35、l of resistive heating elements . 65 B.2 Switching of electric discharge lamp controls . 65 B.3 Switching of incandescent lamps . 66 B.4 Switching of transformers. 66 B.5 Switching of capacitor banks 66 Annex C Vacant 67 Annex D Vacant 68 Annex E Vacant 69 Annex F (informative) Operating capability.
36、 70 Annex G Vacant 73 Annex H Vacant 74 Annex I (normative) Modified test circuit for short-circuit testing of semiconductor contactors and controllers . 75 Annex J (informative) Flowchart for constructing bypassed semiconductor controllers tests . 77 Bibliography 78 Figure 1 Graphical possibilities
37、 of controllers . 13 Figure 2 Methods of connecting . 21 Figure F.1 Thermal stability test profile 70 Figure F.2 Overload capability test profile 71 Figure F.3 Blocking and commutating capability test profile . 72 Figure I.1 Modified circuit for short-circuit testing of semiconductor devices . 75 Fi
38、gure I.2 Time line for the short-circuit test of 9.3.4.1.6 76 Table 1 Functional possibilities of controllers and contactors . 14 Table 2 Utilization categories . 25 Table 3 Relative levels of severity 25 Table 4 Temperature rise limits for insulated coils in air and in oil 34 Table 5 Intermittent d
39、uty test cycle data . 34 Table 6 Minimum overload current withstand time (T x ) in relation to overload current ratio (X) 36 Table 7 Minimum requirements for thermal stability test conditions 37 Table 8 Minimum requirements for overload capability test conditions . 38 Table 9 Minimum requirements an
40、d conditions for performance testing, including blocking and commutating capability . 39 Table 10 Making and breaking capacity test Making and breaking conditions according to utilization categories for the mechanical switching device of hybrid semiconductor controller and contactor H4, H5 . 40 Tabl
41、e 11 Conventional operational performance Making and breaking conditions according to utilization categories for the mechanical switching device of hybrid controllers and contactors H4B, H5B 41 Table 12 Specific performance criteria when EM disturbances are present 44 IEC 60947-4-3:2014 IEC 2014 5 T
42、able 13 Thermal stability test specifications . 51 Table 14 Initial case temperature requirements 52 Table 15 Terminal disturbance voltage limits for conducted radiofrequency emission . 59 Table 16 Radiated emissions test limits . 59 Table A.1 Main circuit terminal markings 62 6 IEC 60947-4-3:2014 I
43、EC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 4-3: Contactors and motor-starters AC semiconductor controllers and contactors for non-motor loads FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardi
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