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 This section is obsolete since there are only a few MV starters fitted with thermal overload relays and electronic relays have their own standards.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.

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 106: Wechselstrom-Schütze, Kombinationsstarter und Motorstarter mit Schützen

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.",PE

Visokonapetostne stikalne in krmilne narave - 106. del: Kontaktorji na izmenični tok, kontaktorski krmilniki in motorni starterji (IEC 62271-106:2011)

Ta del IEC 62271 velja za kontaktorje izmeničnega toka in/ali na kontaktorjih zasnovanih krmilnikov in
starterje motorjev, načrtovane za notranjo postavitev in delovanje pri frekvencah do in vključno 60 Hz pri sistemih, ki imajo napetosti nad 1000 V, vendar manjšo od 24000 V. Velja samo za naprave s tremi poli za uporabo v trifaznih sistemih in naprave z enim polom za enofazne sisteme. Dvopolni kontaktorji in starterji za uporabo v enofaznih sistemih so predmet dogovora med proizvajalcem in uporabnikom.
Kontaktorji in/ali starterji, obravnavani v tem standardu, običajno nimajo zadostne zmogljivosti prekinitve kratkega stika. S tem v zvezi ta standard podaja zahteve za:
- motorne starterje, povezane z ločenimi napravami za zaščito proti kratkemu stiku,
- krmilniki – kontaktorji, združeni z napravami za zaščito proti kratkemu stiku (SCPD).
Kontaktorji, namenjeni zapiranju in odpiranju električnih tokokrogov, in če so združeni z ustreznimi releji za zaščito teh tokokrogov proti delovni preobremenitvi, so zajeti v tem standardu. Ta standard prav tako velja za delovne naprave kontaktorjev in njihovo pomožno opremo.
Obravnava motorne starterje, namenjene zagonu in pospeševanju motorjev do normalne hitrosti, zagotavljanju neprekinjenega delovanja motorjev, izklopu napajanja iz motorja in zagotavljanju načina za zaščito motorjev in povezanih tokokrogov proti delovni preobremenjenosti.
Vključeni so naslednji motorni starterji:
- neposredno povezani starterji,
- reverzivni starterji;
- dvosmerni starterji,
- starterji z zmanjšano kVA (napetost),
• avtomatsko-pretvorni starterji,
• reostatični starterji,
• starterji reaktorja.
Ta standard ne velja za:
- motorne starterje, temelječe na prekinjevalcih,
- enopolno delovanje večpolnih kontaktorjev ali starterjev,
- dvokoračne avtomatsko-pretvorne starterje, načrtovane za neprekinjeno delovanje v začetni poziciji,
- neuravnotežen reostatični starter z rotorjem, tj. kadar upor nima enake
vrednosti v vseh fazah,
- opremo, načrtovano ne samo za zagon, temveč tudi za prilagoditev hitrosti,
- starterje tekočin in tipa »tekočina-hlap«,
- polprevodne kontaktorje in starterje, ki izrabljajo polprevodne kontaktorje v glavnem tokokrogu,
- starterje reostatičnih statorjev,
- kontaktorje ali starterje, načrtovane za posebne uporabe.
Ta standard ne obravnava komponent v kontaktorjih in motornih starterjih, zasnovanih na kontaktorjih, za katere obstaja posamezna specifikacija.
OPOMBA 1: Toplotni električni releji so zajeti z IEC 60225-8.
OPOMBA 2: Visokonapetostne tokovno omejilne varovalke so zajete v IEC 60282-1 in IEC 60644.
OPOMBA 3: Kovinsko zaprte stikalne in krmilne naprave za ocenjene napetosti nad 1 kV in do vključno 52 kV so zajete v IEC 62271-200.
OPOMBA 4: Prekinjevalniki in ozemljitvena stikala so zajeti v IEC 62271-102.
OPOMBA 5: Visokonapetostna stikala nad 1 kV in pod 52 kV so zajeta v IEC 62271-1031.
Namen tega standarda je navesti:
a) značilnosti kontaktorjev in starterjev ter povezane opreme,
b) pogoje, katerim bodo kontaktorji in starterji ustrezali v zvezi z:
1) njihovim delovanjem in obnašanjem,
2) njihovimi dielektričnimi lastnostmi,
3) stopnjo zaščite, zagotovljene z njihovim ohišjem, kjer je primerno,
4) njihovo gradnja,
5) interakcijami med različnimi komponentami, ki veljajo za krmilnike, na primer koordinacija SCPD,
c) preskuse za potrjevanje, da so bili ti pogoji izpolnjeni ter metode
za te preskuse privzete,
d) informacije, podane z opremo ali v proizvajalčevi literaturi.

General Information

Status
Published
Publication Date
06-Oct-2011
Current Stage
6060 - Document made available
Completion Date
07-Oct-2011

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hochspannungs-Schaltgeräte und -Schaltanlagen -- Teil 106: Wechselstrom-Schütze, Kombinationsstarter und Motorstarter mit Schützen (IEC 62271-106:2011)Appareillage à haute tension - Partie 106: Contacteurs, combinés de démarrage à contacteurs et démarreurs de moteurs, pour courant alternatif (CEI 62271-106:2011)High-voltage switchgear and controlgear - Part 106: Alternating current contactors, contactor-based controllers and motor-starters (IEC 62271-106:2011)29.130.10Visokonapetostne stikalne in krmilne napraveHigh voltage switchgear and controlgearICS:Ta slovenski standard je istoveten z:EN 62271-106:2011SIST EN 62271-106:2011en01-december-2011SIST EN 62271-106:2011SLOVENSKI

STANDARDSIST EN 60470:20001DGRPHãþD
EUROPEAN STANDARD EN 62271-106 NORME EUROPÉENNE
EUROPÄISCHE NORM October 2011

CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC -

All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62271-106:2011 E
ICS 29.130.10 Supersedes EN 60470:2000 + corr. Jun.2000
English version
High-voltage switchgear and controlgear -

Part 106: Alternating current contactors, contactor-based controllers and motor-starters (IEC 62271-106:2011)

Appareillage à haute tension -

Partie 106: Contacteurs, combinés de démarrage à contacteurs et démarreurs de moteurs, pour courant alternatif (CEI 62271-106:2011)

Hochspannungs-Schaltgeräte und -Schaltanlagen -

Teil 106: Wechselstrom-Schütze, Kombinationsstarter und Motorstarter mit Schützen (IEC 62271-106:2011)

This European Standard was approved by CENELEC on 2011-09-23. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

EN 62271-106:2011 - 2 -

Foreword The text of document 17A/971/FDIS, future edition 1 of IEC 62271-106, prepared by SC 17A, "High-voltage switchgear and controlgear", of IEC TC 17, "Switchgear and controlgear" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62271-106:2011.

The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-06-23 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2014-09-23

This document supersedes EN 60470:2000 + corrigendum June 2000. EN 62271-106:2011 includes the following significant technical changes with respect to EN 60470:2000:

— 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 shortcircuit 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.

This standard is to be read in conjunction with EN 62271-1:2008, to which it refers and which is applicable unless otherwise specified in this standard. In order to simplify the indication of corresponding requirements, the same numbering of clauses and subclauses is used as in EN 62271-1. Amendments to these clauses and subclauses are given under the same references whilst additional subclauses are numbered from 101.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.

- 3 - EN 62271-106:2011 Endorsement notice The text of the International Standard IEC 62271-106:2011 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60034-11 NOTE

Harmonized as EN 60034-11. IEC 60060 series NOTE
Harmonized in EN 60060 series. IEC 60060-1 NOTE
Harmonized as EN 60060-1. IEC 60060-2 NOTE
Harmonized as EN 60060-2. IEC 60076-11:2004 NOTE
Harmonized as EN 60076-11:2004 (not modified). IEC 60076-2 NOTE
Harmonized as EN 60076-2. IEC 60255-8 NOTE
Harmonized as EN 60255-8. IEC 60947-5-1 NOTE
Harmonized as EN 60947-5-1. IEC 61230 NOTE
Harmonized as EN 61230. IEC 61812-1 NOTE
Harmonized as EN 61812-1. IEC 62271-103 NOTE
Harmonized as EN 62271-103. IEC 62271-110:2009 NOTE
Harmonized as EN 62271-110:2009 (not modified).
EN 62271-106:2011 - 4 -
Annex ZA (normative)

Normative references to international publications with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

NOTE

When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.

Publication Year Title EN/HD Year
IEC 60282-1 - High-voltage fuses -
Part 1: Current-limiting fuses EN 60282-1 -
IEC 60417 Data-base Graphical symbols for use on equipment - -

IEC 60644 - Specification for high voltage fuse-links for motor circuit application EN 60644 -

IEC 62271-1 2007 High-voltage switchgear and controlgear -
Part 1: Common specifications EN 62271-1 2008
IEC 62271-100 2008 High-voltage switchgear and controlgear -
Part 100: Alternating current circuit-breakers EN 62271-100 2009
IEC 62271-102 - High-voltage switchgear and controlgear -
Part 102: Alternating current disconnectors and earthing switches
EN 62271-102 -
IEC 62271-200 2003 High-voltage switchgear and controlgear -

Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV EN 62271-200 2004

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 INTERNATIONALE XC ICS 29.130.10 PRICE CODE CODE PRIX ISBN 978-2-88912-637-8

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale ®

– 2 – 62271-106 Ó 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 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 Ur ............. 44 Table 7 – Relationship between current broken Ic and OFF time .......................................... 47 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 Ó IEC:2011 – 3 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________

HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 106: Alternating current contactors,
contactor-based controllers and motor-starters

FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical 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 interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. 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).

– 4 – 62271-106 Ó IEC:2011 · 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. This standard is to be read in conjunction with IEC 62271-1:2007, to which it refers and which is applicable unless otherwise specified in this standard. In order to simplify the indication of corresponding requirements, the same numbering of clauses and subclauses is used as in IEC 62271-1. Amendments to these clauses and subclauses are given under the same references whilst additional subclauses are numbered from 101. The text of this standard is based on the following documents: FDIS Report on voting 17A/971/FDIS 17A/976/RVD

Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The list of all parts of the IEC 62271 series under the general title, High-voltage switchgear and controlgear, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be

• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended.
62271-106 Ó IEC:2011 – 5 – HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 106: Alternating current contactors,
contactor-based controllers and motor-starters

1 General 1.1 Scope and object This part of IEC 62271 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. Contactors and/or starters dealt with in this standard typically do not have adequate short-circuit interruption capability. In this context, this standard gives requirements for – motor starters associated with separate short-circuit protective devices; – controllers - contactors combined with short-circuit protective devices (SCPD). Contactors intended for closing and opening electric circuits and, if combined with suitable relays, for protecting these circuits against operating overloads are covered in this standard. This standard is also applicable to the operating devices of contactors and to their auxiliary equipment. Motor-starters intended to start and accelerate motors to normal speed, to ensure continuous operation of motors, to switch off the supply from the motor and to provide means for the protection of motors and associated circuits against operating overloads are dealt with. Motor-starter types included are – direct-on-line starters; – reversing starters; – two-direction starters; – reduced kVA (voltage) starters; · auto-transformer starters; · rheostatic starters; · reactor starters. This standard does not apply to – circuit-breaker-based motor-starters; – single-pole operation of multi-pole contactors or starters; – two-step auto-transformer starters designed for continuous operation in the starting position; – unbalanced rheostatic rotor starters, i.e. where the resistances do not have the same value in all phases;

– 6 – 62271-106 Ó IEC:2011 – equipment designed not only for starting, but also for adjustment of speed; – liquid starters and those of the "liquid-vapour" type; – semiconductor contactors and starters making use of semiconductor contactors in the main circuit; – rheostatic stator starters; – contactors or starters designed for special applications. This standard does not deal with components contained in contactors and contactor-based motor-starters, for which individual specifications exist. NOTE 1 Thermal electrical relays are covered by IEC 60255-8. NOTE 2 High-voltage current-limiting fuses are covered by IEC 60282-1 and IEC 60644. NOTE 3 Metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV are covered by IEC 62271-200. NOTE 4 Disconnectors and earthing switches are covered by IEC 62271-102. NOTE 5 High-voltage switches above 1 kV and less than 52 kV are covered by IEC 62271-1031. The object of this standard is to state a) the characteristics of contactors and starters and associated equipment; b) the conditions with which contactors or starters shall comply with reference to: 1) their operation and behaviour, 2) their dielectric properties, 3) the degrees of protection provided by their enclosures, where applicable, 4) their construction, 5) for controllers, interactions between the various components, for example SCPD co-ordination; c) the tests intended for confirming that these conditions have been met, and the methods to be adopted for these tests; d) the information to be given with the equipment or in the manufacturer's literature. 1.2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60282-1, High-voltage fuses – Part 1: Current-limiting fuses

IEC 60417, Graphical symbols for use on equipment

IEC 60644, Specification for high-voltage fuse-links for motor circuit applications IEC 62271-1:2007, High-voltage switchgear and controlgear – Part 1: Common specifications IEC 62271-100:2008, High-voltage switchgear and controlgear – Part 100: Alternating-current circuit-breakers ___________ 1

To be published

62271-106 Ó IEC:2011 – 7 – IEC 62271-102, High-voltage switchgear and controlgear – Part 102: Alternating current disconnectors and earthing switches IEC 62271-200:2003, High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

2 Normal and special service conditions 2.1 Normal service conditions Subclause 2.1 of IEC 62271-1 is applicable with the following addition: For outdoor installations, refer to 8.102.6. 2.2 Special service conditions Subclause 2.2 of IEC 62271-1 is applicable with the following exception: 2.2.1 Altitude Subclause 2.2.1 of IEC 62271-1 is applicable with the following addition: NOTE Above 1 000 m it is often necessary to make adjustments. See 8.102.7. 3 Terms and definitions For the purposes of this standard, the terms and definitions given in Clause 3 of IEC 62271-1, as well as the following, apply. 3.1 General terms and definitions 3.1.101 controlgear general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures, intended in principle for the control of electric energy consuming equipment [IEC 60050-441:1984,

441-11-03] 3.1.102 over-current current exceeding the rated current

[IEC 60050-441:1984, 441-11-06] 3.1.103 short-circuit current over-current resulting from a short circuit due to a fault or an incorrect connection in an electric circuit

[IEC 60050-441:1984, 441-11-07]

– 8 – 62271-106 Ó IEC:2011 3.1.104 overload operating conditions in an electrically undamaged circuit, which cause an over-current [IEC 60050-441:1984, 441-11-08] 3.1.105 conductive part part which is capable of conducting current although it may not necessarily be used for carrying service current [IEC 60050-441:1984, 441-11-09] 3.1.106 ambient air temperature temperature, determined under prescribed conditions, of the air surrounding the complete switching device or fuse

NOTE For switching devices or fuses installed inside an enclosure, it is the temperature of the air outside the enclosure. [IEC 60050-441:1984, 441-11-13] 3.2 Assemblies of switchgear and controlgear Clause 3.2 of IEC 62271-1 applies 3.3 Parts of assemblies Clause 3.3 of IEC 62271-1 applies. 3.4 Switching devices 3.4.101 switching device device designed to make or break the current in one or more electric circuits

[IEC 60050-441:1984, 441-14-01] 3.4.102 mechanical switching device switching device (such as a contactor or a disconnector) designed to close and open one or more electric circuits by means of separable contacts

[IEC 60050-441:1984, 441-14-02, modified] 3.4.103 disconnector mechanical switching device which provides, in the open position, an isolating distance in accordance with specified requirements

NOTE 1 A disconnector is capable of opening and closing a circuit either when negligible current is broken or made, or when no significant change in the voltage across the terminals of each of the poles of the disconnector occurs. It is also capable of carrying currents under normal circuit conditions and carrying for a specified time currents under abnormal conditions such as those of short circuit. NOTE 2 A withdrawable contactor assembly may be used as a disconnector. NOTE 3 In North America, this device is also called an isolating means or an isolating switch. [IEC 60050-441:1984, 441-14-05, modified]

62271-106 Ó IEC:2011 – 9 – 3.4.104 earthing switch mechanical switching device for earthing parts of a circuit, capable of withstanding for a specified time currents under abnormal conditions such as those of short circuit, but not required to carry current under normal conditions of the circuit

NOTE An earthing switch may have a short-circuit making capacity. [IEC 60050-441:1984, 441-14-11] 3.4.105 contactor (mechanical) mechanical switching device having only one position of rest, operated otherwise than by hand, capable of making, carrying and breaking currents under normal circuit conditions including operating overload conditions

NOTE Contactors may be designated according to the method by which the force for closing the main contacts is provided. [IEC 60050-441:1984, 441-14-33] 3.4.106 electromagnetic contactor contactor in which the force for closing or opening the main contacts is provided by an electromagnet 3.4.107 vacuum contactor contactor in which the main contacts open and close within a highly evacuated envelope 3.4.108 SF6 contactor contactor in which the main contacts open and close within an SF6 gas-filled compartment 3.4.109 latched contactor contactor, the moving elements of which are prevented by means of a latching arrangement from returning to the position of rest when the operating means are de-energized

NOTE The latching, and the release of the latching, may be mechanical, electromagnetic, pneumatic, etc. [IEC 60050-441:1984, 441-14-34, modified] 3.4.110 starter combination of all the switching means necessary to start and stop a motor in combination with suitable overload protection

[IEC 60050-441:1984, 441-14-38, mod
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