SIST EN 60143-1:2015

SLOVENSKI STANDARD
SIST EN 60143-1:2015
01-december-2015
1DGRPHãþD
SIST EN 60143-1:2004
Zaporedni kondenzatorji za elektroenergetske sisteme - 1. del: Splošno
Series capacitors for power systems - Part 1: General
Ta slovenski standard je istoveten z: EN 60143-1:2015
ICS:
31.060.70 0RþQRVWQLNRQGHQ]DWRUML Power capacitors
SIST EN 60143-1:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60143-1:2015

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SIST EN 60143-1:2015


EUROPEAN STANDARD EN 60143-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2015
ICS 31.060.70 Supersedes EN 60143-1:2004
English Version
Series capacitors for power systems - Part 1: General
(IEC 60143-1:2015)
Condensateurs série destinés à être installés sur des Reihenkondensatoren für Starkstromanlagen - Teil 1:
réseaux - Partie 1: Généralités Allgemeines
(IEC 60143-1:2015) (IEC 60143-1:2015)
This European Standard was approved by CENELEC on 2015-07-30. 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.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 60143-1:2015 E

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SIST EN 60143-1:2015
EN 60143-1:2015
European foreword
The text of document 33/578/FDIS, future edition 5 of IEC 60143-1, prepared by IEC/TC 33 "Power
capacitors and their applications" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 60143-1:2015.

The following dates are fixed:
(dop) 2016-04-30
• 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) 2018-07-30
standards conflicting with the
document have to be withdrawn

This document supersedes EN 60143-1:2004.

The main change with respect to EN is that the endurance test has been replaced by an ageing test
because voltage cycling is already performed in the cold duty test. The guide section has been
expanded regarding long line correction and altitude correction. In addition the insulation tables and
references to other standards have been updated.

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 60143-1:2015 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 60060-2:2010 NOTE Harmonized as EN 60060-2:2011.
IEC 60110-1:1998 NOTE Harmonized as EN 60110-1:1998.
IEC 60252-1:2010 NOTE Harmonized as EN 60252-1:2011.
IEC 61048:2006 NOTE Harmonized as EN 61048:2006.
IEC 61049:1991 NOTE Harmonized as EN 61049:1993.
IEC 61071 NOTE Harmonized as EN 61071.
IEC 60270:2000 NOTE Harmonized as EN 60270:2001.
IEC 60909-0:2001 NOTE Harmonized as EN 60909-0:2001.

2

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SIST EN 60143-1:2015
 EN 60143-1:2015

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 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year

IEC 60050 series International Electrotechnical Vocabulary - series
IEC 60060-1 2010 High-voltage test techniques -- Part 1: EN 60060-1 2010
General definitions and test requirements
IEC 60071-1 2006 Insulation co-ordination -- Part 1: EN 60071-1 2006
Definitions, principles and rules
IEC 60071-2 1996 Insulation co-ordination -- Part 2: EN 60071-2 1997
Application guide
IEC 60143-2 2012 Series capacitors for power systems -- Part EN 60143-2 2013
2: Protective equipment for series
capacitor banks
IEC 60143-3 1998 Series capacitors for power systems -- Part EN 60143-3 1998
3: Internal fuses
IEC 60143-4 2010 Series capacitors for power systems -- Part EN 60143-4 2010
4: Thyristor controlled series capacitors
IEC 60549 2013 High-voltage fuses for the external EN 60549 2013
protection of shunt capacitors
IEC 60871-1 2014 Shunt capacitors for a.c. power systems EN 60871-1 2014
having a rated voltage above 1 000 V -
Part 1: General
IEC 62271-1 2007 High-voltage switchgear and controlgear -- EN 62271-1 2008
Part 1: Common specifications
IEEE Std 693 -  IEEE Recommended Practice for Seismic - -
Design of Substations

3

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SIST EN 60143-1:2015

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SIST EN 60143-1:2015




IEC 60143-1

®


Edition 5.0 2015-06




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Series capacitors for power systems –

Part 1: General




Condensateurs série destinés à être installés sur des réseaux –

Partie 1: Généralités
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 31.060.70 ISBN 978-2-8322-2752-7



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 60143-1:2015
– 2 – IEC 60143-1:2015 © IEC 2015
CONTENTS
FOREWORD .6
1 Scope and object .8
2 Normative references .8
3 Terms and definitions .9
4 Service conditions . 15
4.1 Normal service conditions . 15
4.2 Ambient air temperature categories . 15
4.3 Abnormal service conditions . 16
4.4 Abnormal power system conditions . 16
5 Quality requirements and tests . 16
5.1 Test requirements for capacitor units . 16
5.1.1 General . 16
5.1.2 Test conditions . 16
5.1.3 Voltage limits as established by overvoltage protector . 17
5.1.4 Determination of protective level voltage U and U . 18
pl lim
5.2 Classification of tests . 18
5.2.1 General . 18
5.2.2 Routine tests . 18
5.2.3 Type tests . 19
5.2.4 Special test (ageing test) . 19
5.3 Capacitance measurement (routine test) . 19
5.3.1 Measuring procedure . 19
5.3.2 Capacitance tolerance . 20
5.4 Capacitor loss measurement (routine test) . 20
5.4.1 Measuring procedure . 20
5.4.2 Loss requirements . 21
5.4.3 Losses in external fuses . 21
5.5 Voltage test between terminals (routine test) . 21
5.6 AC voltage test between terminals and container (routine test) . 21
5.7 Test on internal discharge device (routine test) . 21
5.8 Sealing test (routine test) . 22
5.9 Thermal stability test (type test) . 22
5.9.1 Measuring procedure . 22
5.9.2 Capacitor loss measurement . 23
5.10 AC voltage test between terminals and container (type test) . 23
5.11 Lightning impulse voltage test between terminals and container (type test) . 24
5.12 Cold duty test (type test) . 24
5.13 Discharge current test (type test) . 25
6 Insulation level . 26
6.1 Insulation voltages . 26
6.1.1 Standard values . 26
6.1.2 Insulation to earth and between phases . 26
6.1.3 Insulation levels for insulators and equipment on the platform . 26
6.2 Creepage distance . 33
6.3 Air clearances . 34
7 Overloads, overvoltages and duty cycles . 38

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SIST EN 60143-1:2015
IEC 60143-1:2015 © IEC 2015 – 3 –
7.1 Currents . 38
7.2 Transient overvoltages . 38
7.3 Duty cycles . 39
8 Safety requirements . 39
8.1 Discharge device . 39
8.2 Container connection . 39
8.3 Protection of the environment . 40
8.4 Other safety requirements . 40
9 Markings and instruction books . 40
9.1 Markings of the unit . 40
9.1.1 Rating plate . 40
9.1.2 Warning plate . 41
9.2 Markings of the bank . 41
9.2.1 Instruction sheet or rating plate . 41
9.2.2 Warning plate . 41
9.3 Instruction book . 41
10 Guide for selection of ratings, installation and operation . 42
10.1 General . 42
10.2 Reactance per line, rated reactance per bank and number of modules per
bank . 42
10.2.1 Capacitive reactance per line . 42
10.2.2 Number of series capacitor banks in a transmission line . 43
10.2.3 Number of modules in a capacitor bank . 44
10.2.4 Future requirements for series capacitors . 44
10.3 Current ratings for the bank . 44
10.3.1 General . 44
10.3.2 Typical bank overload and swing current capabilities . 45
10.3.3 Analysis to determine the continuous and emergency overload current
rating . 46
10.3.4 Analysis to determine the swing current rating . 46
10.4 Overvoltage protection requirements . 46
10.5 Voltage limitations during power system faults . 47
10.5.1 General . 47
10.5.2 Voltage limitation when the inductance between the primary
overvoltage protector and the capacitors is not significant . 47
10.5.3 Voltage limitation when the inductance between the primary
overvoltage protector and the capacitors is significant . 48
10.6 Protective and switching devices . 48
10.6.1 Capacitor fusing . 48
10.6.2 Other devices . 48
10.6.3 Connection diagrams . 48
10.7 Choice of insulation level . 49
10.7.1 Normal cases . 49
10.7.2 Altitude exceeding 1 000 m . 49
10.8 Long line correction . 50
10.9 Other application considerations . 51
10.9.1 General . 51
10.9.2 Ferro-resonance . 51
10.9.3 Sub-synchronous resonance . 51

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SIST EN 60143-1:2015
– 4 – IEC 60143-1:2015 © IEC 2015
10.9.4 Relay protection of the power system . 51
10.9.5 Attenuation of carrier-frequency transmission . 52
10.9.6 Non-transposed transmission lines . 52
10.9.7 Power system harmonic currents . 52
10.9.8 TRV across line circuit-breakers . 52
10.9.9 Delayed line current zero crossing . 53
10.9.10 Prolonged secondary arc current . 53
Annex A (normative) Test requirements and application guide for external fuses and
units to be externally fused . 54
A.1 Overview . 54
A.2 Purpose . 54
A.3 Terms employed in Annex A . 54
A.4 Performance requirements . 54
A.5 Tests . 55
A.5.1 Tests on fuses . 55
A.5.2 Type tests on capacitor container . 55
A.6 Guide for coordination of fuse protection . 55
A.6.1 General . 55
A.6.2 Protection sequence . 55
A.7 Choice of fuses . 56
A.7.1 General . 56
A.7.2 Non current-limiting fuses . 56
A.7.3 Current-limiting fuses . 56
A.8 Information needed by the user of the fuses . 56
Annex B (informative) Economic evaluation of series capacitor bank losses . 57
Annex C (informative) Capacitor bank fusing and unit arrangement . 58
C.1 General . 58
C.2 Internally fused capacitor bank . 58
C.3 Externally fused capacitor bank . 58
C.4 Fuseless capacitor bank . 59
Annex D (informative) Examples of typical connection diagrams for large series
capacitor installations for transmission lines. 61
Annex E (informative) Precautions to be taken to avoid pollution of the environment
by polychlorinated biphenyls . 62
Bibliography . 63

Figure 1 – Typical nomenclature of a series capacitor installation . 12
Figure 2 – Classification of overvoltage protection . 17
Figure 3 – Time and amplitude limits for an overvoltage period waveform . 25
Figure 4 – Air clearance versus a.c. power frequency withstand voltage . 38
Figure 5 – Typical current-time profile of an inserted capacitor bank following the fault
and clearing of parallel line . 45
Figure C.1 – Typical connections between capacitor units in a segment or phase . 59
Figure C.2 – Typical connections between elements within a capacitor unit . 60
Figure D.1 – Diagrams for smaller banks . 61

Table 1 – Letter symbols for upper limit of temperature range . 15

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SIST EN 60143-1:2015
IEC 60143-1:2015 © IEC 2015 – 5 –
Table 2 – Ambient air temperature in thermal stability test . 22
Table 3 – Standard insulation levels for range I (1 kV < U ≤ 245 kV) . 29
m
Table 4 – Standard insulation levels for range II (U > 245 kV) (1 of 2) . 30
m
Table 5 – Typical insulation levels for platform-to-ground insulators (1 of 2) . 32
Table 6 – Specific creepage distances . 34
Table 7 – Correlation between standard lightning impulse withstand voltages and
minimum air clearances . 36
Table 8 – Correlation between standard switching impulse withstand voltages and
minimum phase-to-earth air clearances . 37
(reproduced from IEC 60071-2:1996, Table A.2) . 37
Table 9 – Correlation between standard switching impulse withstand voltages and
minimum phase-to-phase air clearances . 37
Table 10 – Typical bank overload and swing current capabilities . 45

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SIST EN 60143-1:2015
– 6 – IEC 60143-1:2015 © IEC 2015
INTERNATIONAL ÉLECTROTECHNICAL COMMISSION
____________

SERIES CAPACITORS FOR POWER SYSTEMS –

Part 1: General

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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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 60143-1 has been prepared by IEC technical committee 33:
Power capacitors and their applications.
This fifth edition cancels and replaces the fourth edition, published in 2004. This edition
constitutes a technical revision.
The main change with respect to the previous edition is that the endurance test has been
replaced by an ageing test because voltage cycling is already performed in the cold duty test.
The guide section has been expanded regarding long line correction and altitude correction.
In addition the insulation tables and references to other standards have been updated.

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SIST EN 60143-1:2015
IEC 60143-1:2015 © IEC 2015 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
33/578/FDIS 33/580/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.
A list of all parts in the IEC 60143 series, published under the gene
...