IEC 62271-112:2013
(Main)High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines
High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines
IEC 62271-112:2013 applies to a.c. high-speed earthing switches designed for indoor and outdoor installation and for operation at service frequencies of 50 Hz and 60 Hz on systems having voltages of 550 kV and above. High-speed earthing switches described in this standard are intended to extinguish the secondary arc remaining after clearing faults on transmission lines by the circuit-breakers.
This publication is to be read in conjunction with IEC 62271-1:2007.
Appareillage à haute tension - Partie 112: Sectionneurs de terre rapides à courant alternatif pour l'extinction de l'arc secondaire sur les lignes de transport
La CEI 62271-112:2013 s'applique aux sectionneurs de terre rapides à courant alternatif conçus pour les installations intérieures et extérieures et pour fonctionner à des fréquences utiles de 50 Hz et 60 Hz sur des réseaux de tensions supérieures ou égales à 550 kV. Les sectionneurs de terre rapides décrits dans la présente norme sont destinés à supprimer l'arc secondaire demeurant après l'élimination des défauts sur les lignes de transport par les disjoncteurs.
Cette publication doit être lue conjointement avec la CEI 62271-1:2007.
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Standards Content (Sample)
IEC 62271-112 ®
Edition 1.0 2013-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 112: Alternating current high-speed earthing switches for secondary arc
extinction on transmission lines
Appareillage à haute tension –
Partie 112: Sectionneurs de terre rapides à courant alternatif pour l’extinction de
l’arc secondaire sur les lignes de transport
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IEC 62271-112 ®
Edition 1.0 2013-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 112: Alternating current high-speed earthing switches for secondary arc
extinction on transmission lines
Appareillage à haute tension –
Partie 112: Sectionneurs de terre rapides à courant alternatif pour l’extinction de
l’arc secondaire sur les lignes de transport
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-1009-3
– 2 – 62271-112 © IEC:2013
CONTENTS
FOREWORD . 4
1 General . 6
1.1 Scope . 6
1.2 Normative references . 6
2 Normal and special service conditions . 6
3 Terms and definitions . 6
3.1 General terms . 6
3.2 Assemblies of switchgear and controlgear . 8
3.3 Parts of assemblies . 8
3.4 Switching devices . 8
3.5 Parts of switchgear and controlgear . 8
3.6 Operation . 8
3.7 Characteristics quantities . 8
4 Ratings . 8
5 Design and construction . 10
6 Type tests . 11
7 Routine tests . 14
8 Guide to the selection of HSES . 14
9 Information to be given with enquiries, tenders and orders . 14
10 Rules for transport, storage, installation, operation and maintenance . 15
11 Safety . 15
Annex A (informative) Background information on the use of HSES . 16
Annex B (informative) Induced current and voltage conditions for other cases . 21
Figure 1 – Explanation of a multi-phase auto-reclosing scheme . 7
Figure 2 – Timing chart of HSES and circuit-breakers . 9
Figure A.1 – Single-line diagram of a power system . 17
Figure A.2 – Timing chart of the HSESs in relation to the transmission line circuit-
breakers . 17
Figure A.3 – Typical timing chart showing the time between fault initiation and a
successful re-close of the transmission line circuit-breakers . 18
Figure B.1 – System condition to explain successive fault . 22
Figure B.2 – Example of waveforms of delayed current zero phenomena . 22
Figure B.3 – Typical test circuit for electromagnetic coupling test-duty of a HSES with
delayed current zero crossings . 24
Figure B.4 – Typical test circuit for electrostatic coupling test-duty of HSES with
delayed current zero crossings . 24
Table 1 – Standardized values of rated induced currents and voltages . 10
Table 2 – Items to be listed on nameplate of a HSES . 11
Table A.1 – Comparison of earthing switches . 19
Table A.2 – Comparison of a four-legged reactor and HSES . 20
Table B.1 – Preferred values for single-phase earth fault with delayed current zero
phenomena in the presence of a successive fault . 23
62271-112 © IEC:2013 – 3 –
Table B.2 – Preferred values for multi-phase earth faults in a double-circuit system . 25
Table B.3 – Preferred values for covering the cases of categories 0 and 1 . 25
– 4 – 62271-112 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 112: Alternating current high-speed earthing switches
for secondary arc extinction on transmission lines
FOREWORD
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International Standard IEC 62271-112 has been prepared by subcommittee 17A: High-voltage
switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear.
The text of this standard is based o
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