IEC 62271-110:2009

High-voltage switchgear and controlgear - Part 110: Inductive load switching

IEC 62271-110:2009 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 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. This second edition cancels and replaces the first edition dated 2005 and constitutes an editorial revision. The main changes from the first edition are that all references to IEC 60694 have been replaced by IEC 62271-1. This standard is to be read in conjunction with IEC 62271-1, first edition, published in 2007, and with IEC 62271-100, second edition, published in 2008.
This publication is to be read in conjunction with IEC 62271-1:2007 and IEC 62271-100:2008.

Appareillage à haute tension - Partie 110: Manoeuvre de charges inductives

La CEI 62271-110:2009 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 CEI 62271-100 et qui sont utilisés pour l'établissement et la coupure de courants de moteurs à haute tension et de réactances shunt, et aussi aux contacteurs à haute tension utilisés pour l'établissement et la coupure de courants de moteurs à haute tension. Cette deuxième édition annule et remplace la première édition datée 2005, elle constitue en une révision rédactionnelle. Par rapport à la première édition toutes les références à la CEI 60694 ont été remplacées par la celles à la CEI 62271-1. Cette norme doit être lue en conjonction avec la CEI 62271-1, première édition, parue en 2007, et avec la CEI 62271-100, deuxième édition, parue en 2008.
Cette publication doit être lue conjointement avec la CEI 62271-1:2007 et la CEI 62271-100:2008.

General Information

• Status: Published
• Publication Date: 25-Jan-2009
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: SC 17A - Switching devices
• Drafting Committee: MT 32 - TC 17/SC 17A/MT 32
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 27-Sep-2012

Relations

• Revises: IEC 62271-110:2005 - High-voltage switchgear and controlgear - Part 110: Inductive load switching
• Effective Date: 05-Sep-2023
• Revised: IEC 62271-110:2012 - High-voltage switchgear and controlgear - Part 110: Inductive load switching
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62271-110
Edition 2.0 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 110: Inductive load switching

Appareillage à haute tension –
Partie 110: Manœuvre de charges inductives

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IEC 62271-110
Edition 2.0 2009-01
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
T
CODE PRIX
ICS 29.130.10 ISBN 978-2-88910-656-1
– 2 – 62271-110 © IEC:2009
CONTENTS
FOREWORD.4
1 General .6
1.1 Scope.6
1.2 Normative references .6
2 Normal and special service conditions .6
3 Definitions .6
4 Ratings.7
4.1 Rated voltage (U ).7
r
4.2 Rated insulation level .7
4.3 Rated frequency (f ) .7
r
4.4 Rated normal current (I ) and temperature rise.7
r
4.5 Rated short-time withstand current (I ).7
k
4.6 Rated peak withstand current (I ).7
p
4.7 Rated duration of short-circuit (t ) .7
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) .7
a
4.9 Rated supply frequency of closing and opening devices and auxiliary circuits .7
4.10 Rated pressure of compressed gas supply for insulation, operation and/or
interruption.7
5 Design and construction .8
6 Type tests .8
6.1 General .8
6.2 Dielectric test .8
6.3 Radio interference voltage (r.i.v.) tests .9
6.4 Measurement of the resistance of the main circuit .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 (EMC) tests .9
6.101 Mechanical and environmental tests .9
6.102 Miscellaneous provisions for making and breaking tests .9
6.103 Test circuits for short-circuit making and breaking tests.9
6.104 Short-circuit test quantities.9
6.105 Short-circuit test procedures.9
6.106 Basic short-circuit test duties .10
6.107 Critical current tests .10
6.108 Single-phase and double-earth fault tests .10
6.114 High-voltage motor current switching tests.10
6.115 Shunt reactor current switching tests .14
7 Routine tests .19
8 Guide to selection of circuit-breakers for service .19
9 Information to be given with enquiries, tenders and orders .19
10 Rules for transport, storage, installation, operation and maintenance .20
11 Safety.20

62271-110 © IEC:2009 – 3 –
Bibliography.24

Figure 1 – Motor switching test circuit and summary of parameters.20
Figure 2 – Illustration of transient voltages at interruption of inductive current for first
phase clearing in a three-phase non-solidly earthed circuit .21
Figure 3 – Reactor switching test − Basic layout of three-phase test circuit.22
Figure 4 – Reactor switching test − Basic layout of single-phase test circuit .22
Figure 5 – Illustration of transient voltages at interruption of inductive current for a
single-phase test .23

Table 1 – Test duties at motor current switching tests.13
Table 2 – Prospective transient voltage of load circuit including connection to the
circuit-breaker.16
Table 3 – Load circuit 1 test currents .17
Table 4 – Load circuit 2 test currents .17
Table 5 – Test duties for reactor current switching tests .18

– 4 – 62271-110 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 110: Inductive load switching

FOREWORD
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