IEC 62271-106:2011

High-voltage switchgear and controlgear - Part 106: Alternating current contactors, contactor-based controllers and motor-starters

IEC 62271-106:2011 is applicable to a.c. contactors and/or contactor-based controllers and motor-starters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 000 V but not exceeding 24 000 V. It is applicable only to three-pole devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. This standard cancels and replaces the second edition of IEC 60470 published in 1999. It constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60470:1999:
- Scope and object: The voltage range covered by the standard was expanded from 12 kV to 24 kV. Overload relay calibration and testing is not covered by this standard.
- 3 Terms and definitions: Added definitions for capacitor switching classes.
- 4.1 Rated voltage: Added 15, 17,5 and 24 kV as standard voltage values.
- 4.109.2 Starting duty of reduced-voltage starters: Added ratings for autotransformer and reactor starters (was in the testing section).
- 4.112 Rated capacitive switching currents: Added capacitor switching current ratings.
- 5.101 Protective relays: Removed the requirements for overload relays. This section is obsolete since there are only a few MV starters fitted with thermal overload relays and electronic relays have their own standards.
- 6.2.5 Application of the test voltage and test conditions (former 6.2.2 b)): Changed wording of requirement for impulse across the open gap of vacuum contactors.
- 6.4.2 Auxiliary circuits: The requirement for resistance checks of auxiliary circuits was deleted.
- 6.5.5.104 Temperature rise of the auto transformer or reactor for two step auto transformer or reactor starters: Reworded to transfer ratings to subclause 4.109.2.
- 6.102.9 Condition following making and breaking tests: Gave specific direction as to what the tolerance should be based on where the resistance was to be checked.
- 6.104 Short-circuit current making and breaking tests: Clarified test conditions for short-circuit testing.
- 6.109 Capacitive current switching tests: Added capacitive current switching tests.
- Annex B: Added Table B.1 - Tolerances on test quantities for type test. The contents of the corrigendum of February 2014 have been included in this copy.

Appareillage à haute tension - Partie 106: Contacteurs, combinés de démarrage à contacteurs et démarreurs de moteurs, pour courant alternatif

La CEI 62271-106:2011 est applicable aux contacteurs à courant alternatif et/ou aux combinés de démarrage et démarreurs de moteurs à base de contacteurs conçus pour des installations intérieures et pour fonctionner à des fréquences inférieures ou égales à 60 Hz, dans des systèmes de tensions supérieures à 1 000 V mais n'excédant pas 24 000 V. Elle ne s'applique qu'aux dispositifs tripolaires, utilisés dans des systèmes triphasés, et aux dispositifs unipolaires, utilisés dans des systèmes monophasés. Les contacteurs et les démarreurs bipolaires peuvent être utilisés dans des systèmes monophasés, après accord entre le constructeur et l'utilisateur. La présente norme annule et remplace la deuxième édition de la CEI 60470 parue en 1999. Elle constitue une révision technique. La présente édition inclut les modifications techniques importantes suivantes par rapport à la CEI 60470:1999.
- 1.1 Domaine d'application et objet: La plage des tensions couverte par la Norme a été étendue de 12 kV à 24 kV.L'étalonnage et les essais des relais de surcharge ne sont pas couverts par la présente norme.
- 3 Définitions: Définitions supplémentaires pour les classes de commutation de condensateurs.
- 4.1 Tension assignée: Les valeurs normalisées de 15 kV, 17,5 kV et 24 kV ont été ajoutées.
- 4.109.2 Service de démarrage des démarreurs à tension réduite: Des caractéristiques assignées concernant les démarreurs à autotransformateur ou à réactance ont été ajoutées. Elles étaient traitées dans la partie relative aux essais.
- 4.112 Courants capacitifs de man uvre assignés: Des caractéristiques assignées relatives aux courants de commutation des condensateurs ont été ajoutées.
- 5.101 Relais de protection: Les exigences concernant les relais de surcharge ont été retirées. Cette partie n'est plus d'actualité, puisqu'il n'y a plus guère de démarreurs à moyenne tension équipés de relais de surcharge et les relais électroniques ont leurs propres normes.
- 6.2.5 Application de la tension d'essai et conditions d'essai (ancien 6.2.2 b): Le libellé de l'exigence relative à l'impulsion entre l'espace ouvert des contacteurs sous vide a été modifié.
- 6.4.2 Circuits auxiliaires: L'exigence concernant les vérifications de résistance des circuits auxiliaires a été supprimée.
- 6.5.5.104 Échauffement de l'autotransformateur ou de la réactance pour les démarreurs à autotransformateur ou à réactance à deux étapes: Ce paragraphe a été reformulé pour transférer les caractéristiques assignées au paragraphe 4.109.2.
- 6.102.9 État après les essais de fermeture et de coupure: Des indications spécifiques sont données quant à la manière dont il convient de définir la tolérance lors de la vérification de résistance.
- 6.104 Essais d'établissement et de coupure de courants de court-circuit: Les conditions d'essai relatives aux essais de court-circuit ont été explicitées.
- 6.109 Essais d'établissement et de coupure de courants capacitifs: Les essais d'établissement et de coupure des courants capacitifs ont été ajoutés.
- Annexe B: Le Tableau B.1 - Tolérances sur les grandeurs d'essai pour les essais de type - a été ajouté. Le contenu du corrigendum de février 2014 a été pris en considération dans cet exemplaire.

General Information

• Status: Published
• Publication Date: 18-Aug-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 19.040 - Environmental testing
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: SC 17A - Switching devices
• Drafting Committee: MT 46 - TC 17/SC 17A/MT 46
• Current Stage: DELPUB - Deleted Publication
• Start Date: 01-Jun-2018
• Completion Date: 26-Apr-2021

Relations

• Replaces: IEC 60470:1999 - High-voltage alternating current contactors and contactor-based motor-starters
• Effective Date: 05-Sep-2023
• Corrected By: IEC 62271-106:2011/COR1:2014 - Corrigendum 1 - High-voltage switchgear and controlgear - Part 106: Alternating current contactors, contactor-based controllers and motor-starters
• Effective Date: 05-Sep-2023
• Revised: IEC 62271-106:2021 - High-voltage switchgear and controlgear - Part 106: Alternating current contactors, contactor-based controllers and motor-starters
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62271-106 ®
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 106: Alternating current contactors, contactor-based controllers and motor-
starters
Appareillage à haute tension –
Partie 106: Contacteurs, combinés de démarrage à contacteurs et démarreurs de
moteurs, pour courant alternatif

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IEC 62271-106 ®
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 106: Alternating current contactors, contactor-based controllers and motor-
starters
Appareillage à haute tension –
Partie 106: Contacteurs, combinés de démarrage à contacteurs et démarreurs de
moteurs, pour courant alternatif

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 29.130.10 ISBN 978-2-88912-637-8

– 2 – 62271-106  IEC:2011
CONTENTS
FOREWORD. 3
1  General . 5
2  Normal and special service conditions . 7
3  Terms and definitions . 7
4  Ratings . 19
5  Design and construction . 32
6  Type tests . 36
7  Routine tests . 57
8  Guide to the selection of contactors and motor-starters for service . 58
9  Information to be given with enquiries, tenders and orders . 62
10  Transport, storage, installation, operation and maintenance . 63
11  Safety . 63
12  Influence of the product on the environment . 63

Annex A (normative) Records and reports of type tests for making, breaking and
short-time current performance . 70
Annex B (normative) Tolerances . 73
Annex C (informative) List of symbols and abbreviations. 79
Bibliography . . 80

Figure 1 – Examples of speed/time curves . 64
Figure 2 – Test duties A and B – preferred earth point . 65
Figure 3 – Test duties A and B – alternative earth point . 65
Figure 4 – Test duty C – preferred earth point . 66
Figure 5 – Test duty C – alternative earth point . 66
Figure 6 – Representation by two parameters of a prospective TRV of a circuit . 67
Figure 7 – Representation of the specified TRV by a two-parameter reference line and
a delay line . 67
Figure 8 – Determination of power frequency recovery voltage . 68
Figure 9 – Characteristics for determining take-over current . 69

Table 1 – Ratings and characteristics . 20
Table 2 – Utilization categories . 26
Table 3 – Characteristics dependent on starter type . 31
Table 4 – Applicable type tests . 37
Table 5 – Intermittent duty operating cycles . 40
Table 6 – Verification of rated making and breaking capacities – Conditions for making
and breaking corresponding to the several utilization categories at rated voltage U . 44
r
Table 7 – Relationship between current broken I and OFF time . 47
c
Table 8 – Overload current withstand requirements . 48
Table 9 – Transient recovery voltage characteristics . 53
Table 10 – Verification of the number of on-load operating cycles – Conditions for
making and breaking corresponding to the several utilization categories . 55
Table B.1 – Tolerances on test quantities for type test . 73

62271-106  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 106: Alternating current contactors,
contactor-based controllers and motor-starters

FOREWORD
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International Standard IEC 62271-106 has been prepared by subcommittee 17A: High-voltage
switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear.
This standard cancels and replaces the second edition of IEC 60470 published in 1999. It
constitutes a technical revision.
This edition includes the following significant technical changes with respect to
IEC 60470:1999:
• Scope and object: The voltage range covered by the standard was expanded from 12 kV
to 24 kV. Overload relay calibration and testing is not covered by this standard.
• 3 Terms and definitions: Added definitions for capacitor switching classes.
• 4.1 Rated voltage: Added 15, 17,5 and 24 kV as standard voltage values.
• 4.109.2 Starting duty of reduced-voltage starters: Added ratings for autotransformer and
reactor starters (was in the testing section).
...