|
IEC 62271-109
Edition 3.0 2019-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
High-voltage switchgear and controlgear –
Part 109: Alternating-current series capacitor by-pass switches
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
.
IEC 62271-109
Edition 3.0 2019-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
High-voltage switchgear and controlgear –
Part 109: Alternating-current series capacitor by-pass switches
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.10 ISBN 978-2-8322-6816-2
– 2 – IEC 62271-109:2019 RLV IEC 2019
CONTENTS
FOREWORD . 9
General .
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
3.1 General terms and definitions . 13
3.2 Assemblies . 16
3.3 Parts of assemblies . 16
3.4 Switching devices . 16
3.5 Parts of by-pass switches . 19
3.6 Operational characteristics of by-pass switches . 22
3.7 Characteristic quantities . 25
3.8 Terms and definitions related to series capacitor banks . 33
3.9 Index of definitions . 36
4 Normal and special service conditions . 40
5 Ratings . 40
5.1 General . 40
5.2 Rated voltage (U ) . 41
r
5.2.1 General . 41
5.2.2 Range I for rated voltage of 245 kV and below . 41
5.2.3 Range II for rated voltage above 245 kV . 41
5.3 Rated insulation level (U , U , U ) . 42
p d s
5.3.101 Rated insulation level to earth (U , U , U ) . 42
pe de se
5.3.102 Rated insulation level across the by-pass switch (U , U , U ) . 42
pp dp sp
5.4 Rated frequency (f ) . 42
r
5.5 Rated normal continuous current (I ) and temperature rise . 42
r
5.6 Rated short-time withstand current (I ) . 42
k
5.7 Rated peak withstand current (I ) . 42
p
5.8 Rated duration of short-circuit (t ) . 42
k
5.9 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) . 43
a
5.10 Rated supply frequency of closing and opening devices and auxiliary and
control circuits . 43
5.11 Rated pressures of compressed gas supply for insulation, operation and/or
by-passing and insertion controlled pressure systems . 43
5.101 Rated operating sequence . 43
5.102 Rated by-pass making current (I ) . 43
BP
5.103 Rated by-pass insertion current (I ) . 44
INS
5.104 Rated reinsertion voltage (U ) . 44
INS
5.105 Number of mechanical operations . 45
6 Design and construction . 45
6.1 Requirements for liquids in by-pass switches . 45
6.2 Requirements for gases in by-pass switches . 45
6.3 Earthing of by-pass switches. 45
6.4 Auxiliary and control equipment and circuits . 45
6.4.1 General . 45
6.4.2 Protection against electrical shock . 45
6.4.3 Components installed in enclosures . 45
6.5 Dependent power operation . 46
6.6 Stored energy operation . 46
6.7 Independent manual unlatched operation (independent manual or power
operation) . 47
6.8 Manually operated actuators . 47
6.9 Operation of releases . 47
6.9.1 General . 47
6.9.2 Shunt closing releases . 47
6.9.3 Shunt opening releases . 47
6.9.4 Capacitor operation of shunt releases . 47
6.9.5 Under-voltage release . 47
6.9.101 Multiple releases . 47
6.9.102 Operation limits of releases . 47
6.9.103 Power consumption of releases . 47
6.10 Pressure/level indication . 48
6.11 Nameplates. 48
6.12 Interlocking Locking devices . 50
6.13 Position indication . 50
6.14 Degrees of protection provided by enclosures . 50
6.15 Creepage distances for outdoor insulators . 50
6.16 Gas and vacuum tightness . 50
6.17 Liquid tightness Tightness for liquid systems . 50
6.18 Fire hazard (flammability) . 50
6.19 Electromagnetic compatibility . 50
6.20 X-ray emission . 50
6.21 Corrosion . 50
6.22 Filling levels for insulation, by-passing, insertion and/or operation . 51
6.101 Requirements for simultaneity within a pole . 51
6.102 General requirement for operation . 51
6.103 Pressure limits of fluids for operation . 51
6.104 Vent outlets . 51
6.105 Rated Time quantities . 52
6.106 Static mechanical loads . 52
7 Type tests . 53
7.1 General . 53
7.1.1 Grouping of tests Basics . 53
7.1.2 Information for identification of specimens test objects . 54
7.1.3 Information to be included in type test reports . 54
7.1.101 Invalid tests . 54
7.1.102 Type tests to repeat for by-pass switches with alternative operating
mechanisms . 55
7.2 Dielectric tests . 55
7.2.1 General . 55
7.2.2 Ambient air conditions during tests . 55
7.2.3 Wet test procedure . 55
7.2.4 Condition of by-pass switch during dielectric tests Arrangement of the
equipment. 55
– 4 – IEC 62271-109:2019 RLV IEC 2019
7.2.5 Criteria to pass the test . 55
7.2.6 Application of test voltage and test conditions . 5
...