SIST EN 62271-110:2013
(Main)High-voltage switchgear and controlgear - Part 110: Inductive load switching (IEC 62271-110:2012 (EQV) + corrigendum Oct. 2012)
High-voltage switchgear and controlgear - Part 110: Inductive load switching (IEC 62271-110:2012 (EQV) + corrigendum Oct. 2012)
This part of IEC 62271 is applicable to a.c. circuit-breakers designed for indoor or outdoor installation, for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1000 V and applied for inductive current switching with or without additional shortcircuit current breaking duties. The standard is applicable to circuit-breakers in accordance with IEC 62271-100 that are used to switch high-voltage motor currents and shunt reactor currents and also to high-voltage contactors used to switch high-voltage motor currents as covered by IEC 62271-106. For circuit-breakers applied to switch shunt reactor currents at rated voltages according to IEC 62271-1:2007 Tables 2a and 2b, combined voltage tests across the isolating distance are not required (refer to 4.2). Switching unloaded transformers, i.e. breaking transformer magnetizing current, is not considered in this standard. The reasons for this are as follows: a) due to the non-linearity of the transformer core, it is not possible to correctly model the switching of transformer magnetizing current using linear components in a test laboratory. Tests conducted using an available transformer, such as a test transformer, will only be valid for the transformer tested and cannot be representative for other transformers; b) as detailed in IEC 62271-3061, the characteristics of this duty are usually less severe than any other inductive current switching duty. It should be noted that such a duty may produce severe overvoltages within the transformer winding(s) depending on the circuitbreaker re-ignition behaviour and transformer winding resonance frequencies. Short-line faults, out-of-phase current making and breaking and capacitive current switching are not applicable to circuit-breakers applied to switch shunt reactors or motors. These duties are therefore not included in this standard. Subclause 1.1 of IEC 62271-100:2008 is otherwise applicable.
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 110: Schalten induktiver Lasten (IEC 62271-110:2012 (EQV) + corrigendum Oct. 2012)
Appareillage à haute tension - Partie 110: Manoeuvre de charges inductives (IEC 62271-110:2012 (EQV) + corrigendum Oct. 2012)
La CEI 62271-110:2012 est applicable aux disjoncteurs à courant alternatif conçus pour une installation à l'intérieur ou à l'extérieur, et pour fonctionner à des fréquences de 50 Hz à 60 Hz, sur des réseaux de tensions supérieures à 1 000 V, et prévus pour l'établissement et la coupure de courants inductifs avec ou sans pouvoir de coupure de court-circuit additionnel. Cette norme est applicable aux disjoncteurs selon la CEI 62271-100, qui sont utilisés pour l'établissement et la coupure de courants de moteurs à haute tension et de courants de bobines d'inductance shunt, et aussi aux contacteurs à haute tension utilisés pour l'établissement et la coupure de courants de moteurs à haute tension, tels que couverts par la CEI 62271-106. Pour les disjoncteurs appliqués en vue de la coupure des courants de bobines d'inductance shunt à des tensions assignées conformément aux Tableaux 2a et 2b de la CEI 62271-1:2007, les essais de tensions combinées à travers la distance de sectionnement ne sont pas exigés (se reporter à 4.2). Cette troisième édition annule et remplace la deuxième édition parue en 2009, et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - l'ancien Tableau 2 a été divisé en trois nouveaux tableaux, afin d'être conforme à la CEI 62271-100, et pour traiter des configurations réelles de circuits en service; - les critères pour que les essais soient satisfaisants ont été révisés, afin d'être plus explicites (voir 6.114.11a); - les commentaires reçus en réponse aux documents 17A/959/CDV et 17A/981/RVC ont été traités.
Visokonapetostne stikalne in krmilne naprave - 110. del: Preklapljanje induktivnega bremena (IEC 62271-110:2012 (EQV) + corrigendum Oct. 2012)
Ta del standarda IEC 62271 se uporablja za izmenične odklopnike za notranjo in zunanjo namestitev, ki delujejo na frekvencah 50 Hz in 60 Hz v sistemih z napetostjo, višjo od 1000 V, ki se uporabljajo za preklapljanje induktivnega toka z dodatnimi nalogami za prekinjanje kratkostičnega toka ali brez dodatnih nalog za prekinjanje kratkostičnega toka. Standard se uporablja za odklopnike v skladu s standardom IEC 62271-100, ki se uporabljajo za preklapljanje visokonapetostnih motornih tokov in soupornih reakcijskih tokov ter tudi za visokonapetostne kontaktorje, ki se uporabljajo za preklapljanje visokonapetostnih motornih tokov, kot je določeno v standardu IEC 62271-106. Za odklopnike, ki se uporabljajo za preklapljanje soupornih reakcijskih tokov pri naznačenih napetostih v skladu s standardom IEC 62271-1:2007, preglednici 2a in 2b, kombinirani preskusi napetosti po celotni izolacijski razdalji niso potrebni (glej točko 4.2). Preklapljanje nenapetih transformatorjev, tj. prekinjanje magnetnega toka transformatorja, v tem standardu ni obravnavano. Razlogi za to so naslednji: a) zaradi nelinearnosti transformatorskega jedra v preskusnem laboratoriju z linearnimi sestavnimi deli ni mogoče pravilno modelirati preklapljanje magnetnega toka transformatorja. Preskusi z razpoložljivim transformatorjem, npr. preskusnim transformatorjem, veljajo samo za preskušeni transformator in ne morejo biti reprezentativni za druge transformatorje; b) kot je opredeljeno v standardu IEC 62271-3061, so lastnosti te obremenitve običajno manj stroge kot druge obremenitve preklapljanja induktivnega toka. Takšna obremenitev lahko povzroči resne prenapetosti v navitju transformatorja, kar je odvisno od lastnosti ponovnega vžiga odklopnika in resonančnih frekvenc navitja transformatorja. Okvare na vodu, ustvarjanje in prekinjanje zunajfaznega toka ter preklapljanje kapacitativnega toka se ne uporabljajo za odklopnike, ki se nameščajo na reaktorje ali motorje. Navedene obremenitve zato niso vključene v ta standard. Podtočka 1.1 standarda IEC 62271-100:2008 se sicer uporablja.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 62271-110:2013
01-februar-2013
1DGRPHãþD
SIST EN 62271-110:2009
Visokonapetostne stikalne in krmilne naprave - 110. del: Preklapljanje
induktivnega bremena (IEC 62271-110:2012 (EQV) + corrigendum Oct. 2012)
High-voltage switchgear and controlgear - Part 110: Inductive load switching (IEC 62271-
110:2012 (EQV) + corrigendum Oct. 2012)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 110: Schalten induktiver Lasten
(IEC 62271-110:2012 (EQV) + corrigendum Oct. 2012)
Appareillage à haute tension - Partie 110: Manoeuvre de charges inductives (IEC 62271
-110:2012 (EQV) + corrigendum Oct. 2012)
Ta slovenski standard je istoveten z: EN 62271-110:2012
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
SIST EN 62271-110:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 62271-110:2013
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SIST EN 62271-110:2013
EUROPEAN STANDARD
EN 62271-110
NORME EUROPÉENNE
December 2012
EUROPÄISCHE NORM
ICS 29.130.10 Supersedes EN 62271-110:2009
English version
High-voltage switchgear and controlgear -
Part 110: Inductive load switching
(IEC 62271-110:2012 + corrigendum Oct. 2012)
Appareillage à haute tension - Hochspannungs-Schaltgeräte und -
Partie 110: Manoeuvre de charges Schaltanlagen -
inductives Teil 110: Schalten induktiver Lasten
(CEI 62271-110:2012 + corrigendum Oct. (IEC 62271-110:2012 + corrigendum Oct.
2012) 2012)
This European Standard was approved by CENELEC on 2012-11-01. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62271-110:2012 E
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SIST EN 62271-110:2013
EN 62271-110:2012 - 2 -
Foreword
The text of document 17A/1016/FDIS, future edition 3 of IEC 62271-110, 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 62271-110:2012.
The following dates are fixed:
(dop) 2013-08-01
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-11-01
standards conflicting with the
document have to be withdrawn
This document supersedes EN 62271-110:2009.
EN 62271-110:2012 includes the following significant technical changes with respect to EN 62271-
110:2009:
– former Table 2 has been split into three new tables to conform with EN 62271-100 and to address
actual in-service circuit configurations;
– the criteria for successful testing has been revised to a more explicit statement (see 6.114.11a);
– comments received in response to 17A/959/CDV and 17A/981/RVC have been addressed.
This standard is to be read in conjunction with EN 62271-1:2008, and with EN 62271-100:2009, to which
it refers and which are applicable, unless otherwise specified. In order to simplify the indication of
corresponding requirements, the same numbering of clauses and subclauses is used as in EN 62271-1
and EN 62271-100. 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.
Endorsement notice
The text of the International Standard IEC 62271-110:2012 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 62271-106 NOTE Harmonized as EN 62271-106.
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SIST EN 62271-110:2013
- 3 - EN 62271-110:2012
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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.
Annex ZA of EN 62271-100:2009 is applicable with the following addition:
Publication Year Title EN/HD Year
IEC 62271-100 2008 High-voltage switchgear and controlgear - EN 62271-100 2009
Part 100: Alternating current circuit-breakers
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SIST EN 62271-110:2013
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SIST EN 62271-110:2013
IEC 62271-110
®
Edition 3.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 110: Inductive load switching
Appareillage à haute tension –
Partie 110: Manœuvre de charges inductives
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 29.130.10 ISBN 978-2-83220-410-8
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 agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN 62271-110:2013
– 2 – 62271-110 © IEC:2012
CONTENTS
FOREWORD . 4
1 General . 6
1.1 Scope . 6
1.2 Normative references . 6
Normal and special service conditions . 6
2
3 Terms and definitions . 7
4 Ratings . 8
5 Design and construction . 8
6 Type tests . 8
6.1 General . 8
6.2 Dielectric tests . 9
6.3 Radio interference voltage (r.i.v.) test . 9
6.4 Measurement of the resistance of circuits . 9
6.5 Temperature-rise tests . 9
6.6 Short-time withstand current and peak withstand current tests . 9
6.7 Verification of protection . 9
6.8 Tightness tests . 9
6.9 Electromagnetic compatibility tests (EMC) . 9
Mechanical and environmental tests . 9
6.101
6.102 Miscellaneous provisions for making and breaking tests . 9
6.103 Test circuits for short-circuit making and breaking tests . 10
6.104 Short-circuit test quantities . 10
6.105 Short-circuit test procedure . 10
6.106 Basic short-circuit test-duties . 10
6.107 Critical current tests. 10
6.108 Single-phase and double-earth fault tests . 10
6.113 High-voltage motor current switching tests . 10
6.114 Shunt reactor current switching tests . 16
7 Routine tests . 27
8 Guide to selection of switchgear and controlgear . 27
9 Information to be given with enquiries, tenders and orders . 27
10 Transport, storage, installation, operation and maintenance . 27
11 Safety . 27
12 Influence of the product on the environment . 27
Annex A (normative) Calculation of t values . 29
3
Bibliography . 31
Figure 1 – Motor switching test circuit and summary of parameters . 12
Figure 2 – Illustration of voltage transients at interruption of inductive current for first
phase clearing in a three-phase non-effectively earthed circuit . 16
Figure 3 – Reactor switching test circuit − Three-phase test circuit for in-service load
circuit configurations 1 and 2 (Table 2) . 18
Figure 4 – Reactor switching test circuit − Single-phase test circuit for in-service load
circuit configurations 1, 2 and 4 (Table 2) . 19
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SIST EN 62271-110:2013
62271-110 © IEC:2012 – 3 –
Figure 5 – Reactor switching test circuit − Three-phase test circuit for in-service load
circuit configuration 3 (Table 2) . 20
Figure 6 – Illustration of voltage transients at interruption of inductive current for a
single-phase test . 28
Table 1 – Test duties at motor current switching tests . 14
Table 2 – In-service load circuit configurations . 17
Table 3 – Standard values of prospective transient recovery voltages – Rated voltages
12 kV to 170 kV for effectively and non-effectively earthed systems – Switching shunt
reactors with isolated neutrals (Table 2: In-service load circuit configuration 1) . 21
Table 4 – Standard values of prospective transient recovery voltages – Rated voltages
100 kV to 1 200 kV for effectively earthed systems – Switching shunt reactors with
earthed neutrals (Table 2: In-service load circuit configuration 2). 22
Table 5 – Standard values of prospective transient recovery voltages – Rated voltages
12 kV to 52 kV for effectively and non-effectively earthed systems – Switching shunt
reactors with isolated neutrals (Table 2: In-service load circuit configuration 3) . 23
Table 6 – Standard values of prospective transient recovery voltages – Rated voltages
12 kV to 52 kV for effectively and non-effectively earthed systems – Switching shunt
reactors with earthed neutrals (Table 2: In-service load circuit configuration 4) . 23
Table 7 – Load circuit 1 test currents . 24
Table 8 – Load circuit 2 test currents . 24
Table 9 – Test duties for reactor current switching tests . 25
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SIST EN 62271-110:2013
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 110: Inductive load switching
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 62271-110 has been prepared by subcommittee 17A: High-voltage
switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear.
This third edition cancels and replaces the second edition published in 2009 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– former Table 2 has been split into three new tables to conform with IEC 62271-100 and to
address actual in-service circuit configurations.
– the criteria for successful testing has been revised to a more explicit statement (see
6.114.11a).
– comments received in response to 17A/959/CDV and 17A/981/RVC have been addressed.
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SIST EN 62271-110:2013
62271-110 © IEC:2012 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
17A/1016/FDIS 17A/1025/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.
This standard is to be read in conjunction with IEC 62271-1:2007, and with
IEC 62271-100:2008, to which it refers and which are applicable, unless otherwise specified.
In order to simplify the indication of corresponding requirements, the same numbering of
clauses and subclauses is used as in IEC 62271-1 and IEC 62271-100. Additional subclauses
are numbered from 101.
A list of all the parts in 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.
The contents of the corrigendum of October 2012 have been included in this copy.
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SIST EN 62271-110:2013
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HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 110: Inductive load switching
1 General
1.1 Scope
This part of IEC 62271 is applicable to a.c. circuit-breakers designed for indoor or outdoor
installation, for operation at frequencies of 50 Hz and 60 Hz on systems having voltages
above 1 000 V and applied for inductive current switching with or without additional short-
circuit current breaking duties. The standard is applicable to circuit-breakers in accordance
with IEC 62271-100 that are used to switch high-voltage motor currents and shunt reactor
currents and also to high-voltage contactors used to switch high-voltage motor currents as
covered by IEC 62271-106. For circuit-breakers applied to switch shunt reactor currents at
rated voltages according to IEC 62271-1:2007 Tables 2a and 2b, combined voltage tests
across the isolating distance are not required (refer to 4.2).
Switching unloaded transformers, i.e. breaking transformer magnetizing current, is not
considered in this standard. The reasons for this are as follows:
a) due to the non-linearity of the transformer core, it is not possible to correctly model the
switching of transformer magnetizing current using linear components in a test laboratory.
Tests conducted using an available transformer, such as a test transformer, will only be
valid for the transformer tested and cannot be representative for other transformers;
1
b) as detailed in IEC 62271-306 , the characteristics of this duty are usually less severe than
any other inductive current switching duty. It should be noted that such a duty may
produce severe overvoltages within the transformer winding(s) depending on the circuit-
breaker re-ignition behaviour and transformer winding resonance frequencies.
Short-line faults, out-of-phase current making and breaking and capacitive current switching
are not applicable to circuit-breakers applied to switch shunt reactors or motors. These duties
are therefore not included in this standard.
Subclause 1.1 of IEC 62271-100:2008 is otherwise applicable.
1.2 Normative references
Subclause 1.2 of IEC 62271-100:2008 is applicable with the following addition:
IEC 62271-100:2008, High-voltage switchgear and controlgear – Part 100: Alternating-current
circuit-breakers
2 Normal and special service conditions
Clause 2 of IEC 62271-1:2007 is applicable.
___________
1
To be published.
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SIST EN 62271-110:2013
62271-110 © IEC:2012 – 7 –
3 Terms and definitions
For the purposes of this document, the definitions of IEC 60050-441 and IEC 62271-1 apply
as well as the following specific to inductive load switching.
3.101
inductive current
power-frequency current through a circuit-breaker drawn by an inductive circuit having a
power factor 0,5 or less
3.102
small inductive current
inductive current having a steady state value considerably less than the rated short-circuit
breaking current
3.103
current chopping
abrupt current interruption in the circuit-breaker at a point-on-wave other than the natural
power-frequency current zero of the circuit connected to the circuit-breaker
3.104
virtual current chopping
current chopping originated by transients in (parts of) the circuit
3.105
chopping current
current interruption prior to the natural power-frequency current zero of the circuit connected
to the switching device
3.106
chopping level
maximum recorded value of the chopping current due to true current chopping in a specific
circuit under rated voltage and normal operating conditions
3.107
load side oscillation
oscillation of the interrupted load side network after current chopping or natural current zero
3.108
suppression peak
first peak of the transient voltage to earth on the load side of the circuit-breaker
3.109
recovery peak
maximum value of the voltage across the circuit-breaker occurring after definite polarity
change of the recovery voltage
Note 1 to entry: Suppression peak and recovery peak are not necessarily the absolute maxima in the transient
recovery voltage. Previous breakdowns may have appeared at higher voltage values.
3.110
voltage escalation
increase in the amplitude of the prospective recovery voltage of the load circuit, produced by
the accumulation of energy due to repeated re-ignitions
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3.111
re-ignition
resumption of current between the contacts of a mechanical switching device during a
breaking operation with an interval of zero current of less than a quarter cycle of power
frequency
[SOURCE: IEC 60050-441:1998, 441-17-45]
Note 1 to entry: In the case of inductive load switching the initiation of the re-ignition is a high frequency event,
which can be of a single or multiple nature and may in some cases be interrupted without power frequency follow
current.
4 Ratings
Clause 4 of IEC 62271-100:2008 is applicable except for the references to short-line faults,
out-of-phase making and breaking, capacitive current switching and as noted in specific
subclauses below. Circuit-breakers do not normally have inductive load switching ratings.
However, circuit-breakers applied for this purpose should meet the requirement of this
standard part.
4.2 Rated insulation level
Subclause 4.2 of IEC 62271-1:2007 is applicable with the following addition:
The rated values stated in Tables 1a and 1b and Tables 2a and 2b of IEC 62271-1:2007 are
applicable with the exception of columns (6) and (8) in Table 2a and column (7) in Table 2b.
NOTE 1 The reason for this exception is the source-less nature of the shunt reactor load circuit.
NOTE 2 In some cases (high chopping overvoltage levels, or where a neutral reactor is present or in cases of
shunt reactors with isolated neutral), it can be necessary to specify an appropriate insulation level which is higher
than the rated values stated above.
5 Design and construction
Clause 5 of IEC 62271-100:2008 is applicable.
6 Type tests
6.1 General
Subclause 6.1 of IEC 62271-100:2008 is applicable with the following addition:
Inductive current switching tests performed for a given current rating and type of application
may be considered valid for another current rating and same type of application as detailed
below:
a) for high-voltage shunt reactor switching at rated voltage 52 kV and above, tests at a
particular current rating are to be considered valid for applications up to 150 % of the
tested current value;
b) for shunt reactor switching at rated voltage below 52 kV, type testing is required but short
circuit test duties T30 and T10 will cover the requirements provided that the TRV values of
T30 and T10 are equal to or higher than the reactor switching TRV values.
c) for high-voltage motor switching, type testing for stalled motor currents at 100 A and 300 A
is considered to cover stalled motor currents in the range 100 A to 300 A and up to the
current associated with the short-circuit current of test duty T10 according to 6.106.1 of
IEC 62271-100:2008.
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SIST EN 62271-110:2013
62271-110 © IEC:2012 – 9 –
With respect to 6.1a) the purpose of type testing is to also determine reignition-free zones for
controlled switching purposes and caution should be exercised when considering applications
at higher currents than the tested values.
Annex B of IEC 62271-100:2008 is applicable with respect to tolerances on test quantities.
6.2 Dielectric tests
Subclause 6.2 of IEC 62271-100:2008 is applicable with the following addition:
Refer to 4.2.
6.3 Radio interference voltage (r.i.v.) test
Subclause 6.3 of IEC 62271-1:2007 is applicable.
6.4 Measurement of the resistance of circuits
Subclause 6.4 of IEC 62271-1:2007 is applicable.
6.5 Temperature-rise tests
Subclause 6.5 of IEC 62271-1:2007 is applicable.
6.6 Short-time withstand current and peak withstand current tests
Subclause 6.6 of IEC 62271-1:2007 is applicable.
6.7 Verification of protection
Subclause 6.7 of IEC 62271-1:2007 is applicable.
6.8 Tightness tests
Subclause 6.8 of IEC 62271-1:2007 is applicable.
6.9 Electromagnetic compatibility tests (EMC)
Subclause 6.9 of IEC 62271-1:2007 is applicable.
6.101 Mechanical and environmental tests
Subclause 6.101 of IEC 62271-100:2008 is applicable.
6.102 Miscellaneous provisions for making and breaking tests
Subclause 6.102 of IEC 62271-100:2008 is applicable with the following addition:
High-voltage motor current and shunt reactor switching tests shall be performed at rated
auxiliary and control voltage or, where necessary, at maximum auxiliary and control voltage to
facilitate consistent control of the opening and closing operation according to 6.102.3.1 of
IEC 62271-100:2008 and at rated functional pressure for interruption and insulation.
For gas circuit-breakers, a shunt reactor switching test shall also be performed at the
minimum functional pressure for interruption and insulation. This requirement applies for test
duty 4 only (see 6.114.9).
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SIST EN 62271-110:2013
– 10 – 62271-110 © IEC:2012
6.103 Test circuits for short-circuit making and breaking tests
Subclause 6.103 of IEC 62271-100:2008 is applicable.
6.104 Short-circuit test quantities
Subclause 6.104
...
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