EN 62271-100:2009

SLOVENSKI STANDARD
01-junij-2009
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SIST EN 62271-100:2002
SIST EN 62271-100:2002/A1:2003
SIST EN 62271-100:2002/A2:2007
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High-voltage switchgear and controlgear - Part 100: Alternating current circuit-breakers
(IEC 62271-100:2008)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 100: Wechselstrom-
Leistungsschalter (CEI 62271-100:2008)
Appareillage à haute tension - Partie 100: Disjoncteurs à courant alternatif (IEC 62271-
100:2008)
Ta slovenski standard je istoveten z: EN 62271-100:2009
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62271-100
NORME EUROPÉENNE
April 2009
EUROPÄISCHE NORM
ICS 29.130.10 Supersedes EN 62271-100:2001 + A1:2002 + A2:2006

English version
High-voltage switchgear and controlgear -
Part 100: Alternating-current circuit-breakers
(IEC 62271-100:2008)
Appareillage à haute tension -  Hochspannungs-Schaltgeräte
Partie 100: Disjoncteurs und -Schaltanlagen -
à courant alternatif Teil 100: Wechselstrom-Leistungsschalter
(CEI 62271-100:2008) (IEC 62271-100:2008)

This European Standard was approved by CENELEC on 2009-03-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: avenue Marnix 17, B - 1000 Brussels

© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62271-100:2009 E
Foreword
The text of document 17A/815/FDIS, future edition 2 of IEC 62271-100, 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 was approved by CENELEC as EN 62271-100 on 2009-03-01.
This European Standard supersedes EN 62271-100:2001 + A1:2002 + A2:2006 + A2:2006/corrigendum
November 2006.
The main changes with respect to EN 62271-100:2001 are listed below:
– introduction of harmonised (IEC and IEEE) TRV waveshapes for rated voltages of 100 kV and above
(amendment 1 to EN 62271-100:2001);
– introduction of cable and line systems with their associated TRVs for rated voltages below 100 kV
(amendment 2 to EN 62271-100:2001);
– inclusion of IEC 61633 and IEC 62271-308.
This standard shall be read in conjunction with EN 62271-1:2008, to which it refers and which is
applicable unless otherwise specified in this standard. In order to simplify the indication of corresponding
requirements, the same numbering of clauses and subclauses is used as in EN 62271-1. Amendments to
these clauses and subclauses are given under the same references whilst additional subclauses are
numbered from 101.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2012-03-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62271-100:2008 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 60044-1 NOTE  Harmonized as EN 60044-1:1999 (modified).
IEC 60044-2 NOTE  Harmonized as EN 60044-2:1999 (modified).
IEC 60077 NOTE  Harmonized in EN 60077 series (modified).
IEC 60099-4 NOTE  Harmonized as EN 60099-4:2004 (modified).
IEC 60143-2 NOTE  Harmonized as EN 60143-2:1994 (not modified).
IEC 62271-109 NOTE  Harmonized as EN 62271-109:2009 (not modified).
IEC 62271-200 NOTE  Harmonized as EN 62271-200:2004 (not modified).
IEC 62271-203 NOTE  Harmonized as EN 62271-203:2004 (not modified).
__________
– 3 – EN 62271-100:2009
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. 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.
Publication Year Title EN/HD Year

IEC 60050-151 2001 International Electrotechnical Vocabulary - -
(IEV) -
Part 151: Electrical and magnetic devices

IEC 60050-441 1984 International Electrotechnical Vocabulary - -
(IEV) -
Chapter 441: Switchgear, controlgear and
fuses
IEC 60050-601 1985 International Electrotechnical Vocabulary - -
(IEV) -
Chapter 601: Generation, transmission and
distribution of electricity - General

IEC 60050-604 1987 International Electrotechnical Vocabulary - -
(IEV) -
Chapter 604: Generation, transmission and
distribution of electricity - Operation

1) 2)
IEC 60059 - IEC standard current ratings EN 60059 1999

IEC 60060-1 1989 High-voltage test techniques -
+ corr. March 1990 Part 1: General definitions and test HD 588.1 S1 1991
requirements
1) 2)
IEC 60071-2 - Insulation co-ordination - EN 60071-2 1997
Part 2: Application guide
1) 2)
IEC 60137 - Insulated bushings for alternating voltages EN 60137 2008
above 1 000 V
IEC 60255-3 1989 Electrical relays - - EN 60255-3 1998
(mod) Part 3: Single input energizing quantity + corr. January 1998
measuring relays with dependent or
independent time
1) 2)
IEC 60296 - Fluids for electrotechnical applications - EN 60296 2004
Unused mineral insulating oils for + corr. September 2004
transformers and switchgear
1) 2)
IEC 60376 - Specification of technical grade sulfur EN 60376 2005
hexafluoride (SF ) for use in electrical
equipment
1) 2)
IEC 60480 - Guidelines for the checking and treatment of EN 60480 2004
sulphur hexafluoride (SF ) taken from
electrical equipment and specification for its
re-use
1)
Undated reference.
2)
Valid edition at date of issue.

Publication Year Title EN/HD Year

1) 2)
IEC 60529 - Degrees of protection provided by EN 60529 1991
enclosures (IP Code) + corr. May 1993

1)
IEC/TS 61634 - High-voltage switchgear and controlgear - - -
Use and handling of sulphur hexafluoride
(SF ) in high-voltage switchgear and
controlgear
IEC 62271-1 2007 High-voltage switchgear and controlgear - EN 62271-1 2008
Part 1: Common specifications
IEC 62271-101 2006 High-voltage switchgear and controlgear - EN 62271-101 2006
Part 101: Synthetic testing
IEC 62271-102 2001 High-voltage switchgear and controlgear -
+ corr. April 2002 Part 102: Alternating current disconnectors EN 62271-102 2002
+ corr. May 2003 and earthing switches + corr. March 2005

1) 2)
IEC 62271-110 - High-voltage switchgear and controlgear - EN 62271-110 2005
Part 110: Inductive load switching

IEC 62271-100
Edition 2.0 2008-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 100: Alternating-current circuit-breakers

Appareillage à haute tension –
Partie 100: Disjoncteurs à courant alternatif

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XN
CODE PRIX
ICS 29.130.10 ISBN 2-8318-9714-9

– 2 – 62271-100 © IEC:2008
CONTENTS
FOREWORD.19
1 General .21
1.1 Scope .21
1.2 Normative references .22
2 Normal and special service conditions .23
3 Terms and definitions .23
3.1 General terms.23
3.2 Assemblies .27
3.3 Parts of assemblies .27
3.4 Switching devices .27
3.5 Parts of circuit-breakers.29
3.6 Operation .31
3.7 Characteristic quantities .33
3.8 Index of definitions .39
4 Ratings.43
4.1 Rated voltage (U ) .44
r
4.2 Rated insulation level .44
4.3 Rated frequency (f ).45
r
4.4 Rated normal current (I ) and temperature rise .45
r
4.5 Rated short-time withstand current (I ) .45
k
4.6 Rated peak withstand current (I ) .45
p
4.7 Rated duration of short circuit (t ).45
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) .45
a
4.9 Rated supply frequency of closing and opening devices and auxiliary
circuits.45
4.10 Rated pressures of compressed gas supply for insulation, operation and/or
interruption .46
4.101 Rated short-circuit breaking current (I ) .46
sc
4.101.1 AC component of the rated short-circuit breaking current.46
4.101.2 DC time constant of the rated short-circuit breaking current .46
4.102 Transient recovery voltage related to the rated short-circuit breaking
current.47
4.102.1 Representation of TRV waves.47
4.102.2 Representation of TRV.48
4.102.3 Standard values of TRV related to the rated short-circuit
breaking current .49
4.102.4 Standard values of ITRV .57
4.103 Rated short-circuit making current .57
4.104 Rated operating sequence .58
4.105 Characteristics for short-line faults .58
4.106 Rated out-of-phase making and breaking current.59
4.107 Rated capacitive switching currents .60
4.107.1 Rated line-charging breaking current.60
4.107.2 Rated cable-charging breaking current .60
4.107.3 Rated single capacitor bank breaking current .61
4.107.4 Rated back-to-back capacitor bank breaking current .62

62271-100 © IEC:2008 – 3 –
4.107.5 Rated single capacitor bank inrush making current.62
4.108 Inductive load switching.62
4.109 Rated time quantities.62
4.109.1 Rated break-time.63
4.110 Number of mechanical operations.63
4.111 Classification of circuit-breakers as a function of electrical endurance .63
5 Design and construction .64
5.1 Requirements for liquids in circuit-breakers .64
5.2 Requirements for gases in circuit-breakers .64
5.3 Earthing of circuit-breakers.64
5.4 Auxiliary equipment .64
5.5 Dependent power closing.65
5.6 Stored energy closing .65
5.7 Independent manual operation.65
5.8 Operation of releases .65
5.8.101 Over-current release.65
5.8.101.1 Operating current.65
5.8.101.2 Operating time.65
5.8.101.3 Resetting current .66
5.8.102 Multiple releases.66
5.8.103 Operation limits of releases.66
5.8.104 Power consumption of releases.66
5.8.105 Integrated relays for self-tripping circuit-breakers.66
5.9 Low- and high-pressure interlocking devices.66
5.10 Nameplates .66
5.11 Interlocking devices .68
5.12 Position indication .68
5.13 Degrees of protection by enclosures.68
5.14 Creepage distances.68
5.15 Gas and vacuum tightness.68
5.16 Liquid tightness .68
5.17 Fire hazard (flammability) .68
5.18 Electromagnetic compatibility .68
5.19 X-ray emission.69
5.20 Corrosion.69
5.101 Requirements for simultaneity of poles during single closing and single
opening operations .69
5.102 General requirement for operation .69
5.103 Pressure limits of fluids for operation.69
5.104 Vent outlets.70
6 Type tests .70
6.1 General .72
6.1.1 Grouping of tests .72
6.1.2 Information for identification of specimens .72
6.1.3 Information to be included in type test reports.72
6.1.101 Invalid tests .72
6.2 Dielectric tests.73
6.2.1 Ambient air conditions during tests .73
6.2.2 Wet test procedure .73

– 4 – 62271-100 © IEC:2008
6.2.3 Condition of circuit-breaker during dielectric tests.73
6.2.4 Criteria to pass the test.73
6.2.5 Application of test voltage and test conditions.73
6.2.6 Tests of circuit-breakers of U ≤ 245 kV .74
r
6.2.7 Tests of circuit-breakers of U > 245 kV .74
r
6.2.8 Artificial pollution tests.75
6.2.9 Partial discharge tests .75
6.2.10 Tests on auxiliary and control circuits .75
6.2.11 Voltage test as a condition check.75
6.3 Radio interference voltage (r.i.v.) tests .76
6.4 Measurement of the resistance of the main circuit .76
6.5 Temperature-rise tests.76
6.5.1 Conditions of the circuit-breaker to be tested .76
6.5.2 Arrangement of the equipment.76
6.5.3 Measurement of the temperature and the temperature rise .77
6.5.4 Ambient air temperature .77
6.5.5 Temperature-rise tests of the auxiliary and control equipment.77
6.5.6 Interpretation of the temperature-rise tests .77
6.6 Short-time withstand current and peak withstand current tests.77
6.6.1 Arrangement of the circuit-breaker and of the test circuit .77
6.6.2 Test current and duration.77
6.6.3 Behaviour of the circuit-breaker during test.77
6.6.4 Conditions of the circuit-breaker after test .78
6.7 Verification of the degree of protection .78
6.7.1 Verification of the IP coding .78
6.7.2 Mechanical impact test .78
6.8 Tightness tests .78
6.9 Electromagnetic compatibility (EMC) tests .78
6.9.3.1 Ripple on d.c. input power port immunity test.78
6.9.3.2 Voltage dips, short interruptions and voltage variations on d.c.
input power port immunity tests .78
6.10 Additional tests on auxiliary and control circuits.78
6.10.1 General .78
6.10.2 Functional tests .79
6.10.3 Electrical continuity of earthed metallic parts test .79
6.10.4 Verification of the operational characteristics of auxiliary
contacts .79
6.10.5 Environmental tests .79
6.101 Mechanical and environmental tests .79
6.101.1 Miscellaneous provisions for mechanical and environmental tests .79
6.101.1.1 Mechanical characteristics.79
6.101.1.2 Component tests.80
6.101.1.3 Characteristics and settings of the circuit-breaker to be recorded
before and after the tests .80
6.101.1.4 Condition of the circuit-breaker during and after the tests .81
6.101.1.5 Condition of the auxiliary and control equipment during and after
the tests .
6.101.2 Mechanical operation test at ambient air temperature .81
6.101.2.1 General .81
6.101.2.2 Condition of the circuit-breaker before the test.82

62271-100 © IEC:2008 – 5 –
6.101.2.3 Description of the test on class M1 circuit-breakers .82
6.101.2.4 Extended mechanical endurance tests on class M2 circuit-
breakers for special service requirements .83
6.101.2.5 Acceptance criteria for the mechanical operation tests.83
6.101.3 Low and high temperature tests .84
6.101.3.1 General .84
6.101.3.2 Measurement of ambient air temperature.85
6.101.3.3 Low temperature test.85
6.101.3.4 High-temperature test.86
6.101.4 Humidity test.87
6.101.4.1 General .87
6.101.4.2 Test procedure .88
6.101.5 Test to prove the operation under severe ice conditions .89
6.101.6 Static terminal load test .89
6.101.6.1 General .89
6.101.6.2 Tests .89
6.102 Miscellaneous provisions for making and breaking tests .90
6.102.1 General.91
6.102.2 Number of test specimens .91
6.102.3 Arrangement of circuit-breaker for tests .92
6.102.3.1 General .92
6.102.3.2 Common enclosure type .93
6.102.3.3 Multi-enclosure type .93
6.102.3.4 Self-tripping circuit-breakers.94
6.102.4 General considerations concerning testing methods .94
6.102.4.1 Single-phase testing of a single pole of a three-pole circuit-
breaker .94
6.102.4.2 Unit testing .95
6.102.4.2.1 Identical nature of the units .96
6.102.4.2.2 Voltage distribution.96
6.102.4.2.3 Requirements for unit testing.97
6.102.4.3 Multi-part testing.97
6.102.5 Synthetic tests.98
6.102.6 No-load operations before tests .98
6.102.7 Alternative operating mechanisms.98
6.102.8 Behaviour of circuit-breaker during tests.99
6.102.9 Condition of circuit-breaker after tests .99
6.102.9.1 General .99
6.102.9.2 Condition after a short-circuit test-duty . 100
6.102.9.3 Condition after a short-circuit test series. 100
6.102.9.4 Condition after a capacitive current switching test series . 101
6.102.9.5 Reconditioning after a short-circuit test-duty and other test
series .102
6.102.10 Demonstration of arcing times . 102
6.102.10.1 Three-phase tests . 102
6.102.10.1.1 Test-duty T10, T30, T60, T100s, T100s(b), OP1 and OP2 . 102
6.102.10.1.2 Test-duty T100a.102
6.102.10.2 Single-phase tests in substitution for three-phase conditions. 104
6.102.10.2.1 Non-effectively earthed neutral systems . 104
6.102.10.2.1.1 Test-duties T10, T30, T60, T100s and T100s(b), OP1 and OP2 .104

– 6 – 62271-100 © IEC:2008
6.102.10.2.1.2 Test-duty T100a .105
6.102.10.2.2 Effectively earthed neutral systems including short-line fault
tests.115
6.102.10.2.2.1 Test-duties T10, T30, T60, T100s and T100s(b), OP1 and
OP2, L , L and L .115
90 75 60
6.102.10.2.2.2 Test-duty T100a .115
6.102.10.2.3 Modified procedure in cases where the circuit-breaker failed
to interrupt during a test with a medium arcing time. 115
6.102.10.2.3.1 Breaking test with symmetrical current. 115
6.102.10.2.3.2 Breaking test with asymmetrical current. 116
6.102.10.2.4 Tests combining the conditions for effectively and non-
effectively earthed neutral systems .116
6.102.10.2.5 Splitting of test-duties in test series taking into account the
associated TRV for each pole-to-clear. 116
6.103 Test circuits for short-circuit making and breaking tests.117
6.103.1 Power factor.117
6.103.2 Frequency.117
6.103.3 Earthing of test circuit.117
6.103.4 Connection of test circuit to circuit-breaker . 119
6.104 Short-circuit test quantities.119
6.104.1 Applied voltage before short-circuit making tests . 119
6.104.2 Short-circuit making current .119
6.104.2.1 General .119
6.104.2.2 Test procedure .120
6.104.2.2.1 Three-phase tests .120
6.104.2.2.2 Single-phase tests.120
6.104.3 Short-circuit breaking current. 121
6.104.4 DC component of short-circuit breaking current . 121
6.104.5 Transient recovery voltage (TRV) for short-circuit breaking tests . 122
6.104.5.1 General .122
6.104.5.2 Test-duties T100s and T100a .124
6.104.5.3 Test duty T60 .124
6.104.5.4 Test duty T30 .124
6.104.5.5 Test duty T10 .125
6.104.5.6 Test-duties OP1 and OP2.125
6.104.6 Measurement of transient recovery voltage during test . 125
6.104.7 Power frequency recovery voltage .132
6.105 Short-circuit test procedure.132
6.105.1 Time interval between tests .132
6.105.2 Application of auxiliary power to the opening release – Breaking
tests.133
6.105.3 Application of auxiliary power to the opening release – Make-
break tests .133
6.105.4 Latching on short-circuit.133
6.106 Basic short-circuit test-duties.133
6.106.1 Test-duty T10 .134
6.106.2 Test-duty T30 .134
6.106.3 Test-duty T60 .134
6.106.4 Test-duty T100s.134
6.106.4.1 Time constant of the d.c. component of the test circuit equal to
the specified value .135

62271-100 © IEC:2008 – 7 –
6.106.4.2 Time constant of the d.c. component of the test circuit less than
the specified value .135
6.106.4.3 Time constant of the d.c. component of the test circuit greater
than the specified value .136
6.106.4.4 Significant decay of the a.c. component of the test circuit . 136
6.106.5 Test-duty T100a.137
6.106.6 Asymmetry criteria.138
6.106.6.1 Three-phase tests.139
6.106.6.1.1 Test current amplitude and last current loop duration.139
6.106.6.1.2 Percentage of d.c. component at current zero .139
6.106.6.2 Single-phase tests .139
6.106.6.2.1 Test current amplitude and last current loop duration.139
6.106.6.2.2 Percentage of the d.c. component at current zero . 140
6.106.6.3 Adjustment measures .140
6.107 Critical current tests .140
6.107.1 Applicability.140
6.107.2 Test current.141
6.107.3 Critical current test-duty.141
6.108 Single-phase and double-earth fault tests . 141
6.108.1 Applicability.141
6.108.2 Test current and recovery voltage.142
6.108.3 Test-duty.142
6.109 Short-line fault tests .143
6.109.1 Applicability.143
6.109.2 Test current.143
6.109.3 Test circuit.144
6.109.4 Test-duties.146
6.109.5 Short-line fault tests with a test supply of limited power .146
6.110 Out-of-phase making and breaking tests.147
6.110.1 Test circuit.147
6.110.2 Test voltage.147
6.110.3 Test-duties.147
6.111 Capacitive current switching tests.148
6.111.1 Applicability.148
6.111.2 General.148
6.111.3 Characteristics of supply circuits. 149
6.111.4 Earthing of the supply circuit.149
6.111.5 Characteristics of the capacitive circuit to be switched. 150
6.111.5.1 Line-charging and cable-charging current switching tests . 150
6.111.5.2 Capacitor bank current switching tests.151
6.111.6 Waveform of the current .151
6.111.7 Test voltage.151
6.111.8 Test current.152
6.111.9 Test-duties.152
6.111.9.1 Test conditions for class C2 circuit-breakers.153
6.111.9.1.1 Class C2 test-duties.153
6.111.9.1.2 Three-phase line-charging and cable-charging current
switching tests .156
6.111.9.1.3 Single-phase line-charging and cable-charging current
switching tests .156

– 8 – 62271-100 © IEC:2008
6.111.9.1.4 Three-phase capacitor bank (single or back-to-back) current
switching tests .156
6.111.9.1.5 Single-phase capacitor bank (single or back-to-back) current
switching tests .157
6.111.9.2 Test conditions for class C1 circuit-breakers.158
6.111.9.2.1 Class C1 test-duties.158
6.111.9.2.2 Single-phase and three-phase capacitive current switching
tests.160
6.111.9.3 Test conditions corresponding to breaking in the presence of
earth faults .160
6.111.10 Tests with specified TRV .161
6.111.11 Criteria to pass the test.161
6.111.11.1 General.161
6.111.11.2 Class C2 circuit-breaker.162
6.111.11.3 Class C1 circuit-breaker.162
6.111.11.4 Criteria for reclassification of a circuit-breaker tested to the
class C2 requirements as a class C1 circuit-breaker.162
6.112 Special requirements for making and breaking tests on class E2 circuit-
breakers .163
6.112.1 Class E2 circuit-breakers intended for use without auto-reclosing
duty.163
6.112.2 Class E2 circuit-breakers intended for auto-reclosing duty. 163
7 Routine tests .164
7.1 Dielectric test on the main circuit .164
7.2 Tests on auxiliary and control circuits .165
7.3 Measurement of the resistance of the main circuit . 165
7.4 Tightness test .165
7.5 Design and visual checks .165
7.101 Mechanical operating tests .165
8 Guidance to the selection of circuit-breakers for service . 167
8.101 General.167
8.102 Selection of rated values for service conditions . 168
8.102.1 Selection of rated voltage . 168
8.102.2 Insulation coordination.169
8.102.3 Rated frequency .169
8.102.4 Selection of rated normal current .169
8.102.5 Local atmospheric and climatic conditions . 16
...