IEC 62271-111:2012

High-voltage switchgear and controlgear - Part 111: Automatic circuit reclosers and fault interrupters for alternating current systems up to 38 kV

IEC 62271-111:2012(E) applies to all overhead, pad mounted, dry vault and submersible single or multi-pole alternating current automatic circuit reclosers and fault interrupters for rated maximum voltages above 1 000 V and up to 38 kV. This second edition cancels and replaces the first edition, published in 2005, and constitutes a technical revision. The main changes with respect to the previous edition are as follows:
a) addition of exclusion of devices with dependent manual operation to 1.1;
b) harmonization of the amplitude factor kaf used for calculating the TRV for cable connected systems consistent with recent harmonization of the circuit-breaker standards between IEEE and IEC;
c) deletion of requirements for radio influence voltage (RIV) tests;
d) addition of specifications and ratings to cover the cutout recloser and its special requirements.
This standard has been jointly revised by Switchgear Committee of the IEEE Power and Energy Society, in cooperation with subcommittee 17A: High-voltage switchgear and controlgear with reference to IEEE Std C37.60-2012(E).
This publication is to be read in conjunction with IEC 62271-1:2007.

General Information

• Status: Published
• Publication Date: 24-Sep-2012
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: SC 17A - Switching devices
• Drafting Committee: MT 47 - TC 17/SC 17A/MT 47
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 12-Feb-2019

Relations

• Revised: IEC 62271-111:2019 - High-voltage switchgear and controlgear - Part 111: Automatic circuit reclosers for alternating current systems up to and including 38 kV
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62271-111



Edition 2.0 2012-09


™

IEEE C37.60
INTERNATIONAL




STANDARD




colour
inside


High-voltage switchgear and controlgear –
Part 111: Automatic circuit reclosers and fault interrupters for alternating current
systems up to 38 kV


IEC 62271-111:2012(E)  IEEE Std. C37.60-2012

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IEC 62271-111





Edition 2.0 2012-09






IEEE C37.60™

INTERNATIONAL





STANDARD











colour

inside










High-voltage switchgear and controlgear –

Part 111: Automatic circuit reclosers and fault interrupters for alternating current

systems up to 38 kV



























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

PRICE CODE
XF


ICS 29.130.10 ISBN 978-2-83220-332-3



  Warning! Make sure that you obtained this publication from an authorized distributor.

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– 2 – IEC 62271-111:2012(E)

 IEEE Std C37.60-2012(E)



CONTENTS


FOREWORD . 11


1 Overview . 14

1.1 Scope . 14

1.2 Normative references . 14

2 Normal and special service conditions . 15

2.101 General . 15


2.102 Normal service conditions . 16
2.102.1 Indoor switchgear and controlgear . 16
2.102.2 Outdoor switchgear and controlgear . 16
2.103 Special service conditions . 17
2.103.1 General . 17
2.103.2 Altitude . 17
2.103.3 Pollution . 17
2.103.4 Temperature and humidity . 18
2.103.5 Vibrations, shock, or tilting . 18
2.103.6 Wind speed . 18
2.103.7 Other special (unusual) service conditions . 18
3 Terms and definitions . 18
3.1 General terms . 19
3.2 Assemblies of switchgear and controlgear . 21
3.3 Parts of assemblies . 21
3.4 Switching devices . 21
3.5 Parts of switchgear and controlgear . 21
3.6 Operation . 21
3.7 Characteristic quantities . 22
3.8 Index of definitions . 23
4 Ratings . 23
4.1 Rated voltage (U ) . 24
r
4.2 Rated insulation level . 25
4.3 Rated frequency (f ) . 26
r
4.4 Rated normal current and temperature rise. 26
4.4.1 Rated normal current (I ) . 26

r
4.4.2 Temperature rise . 27
4.4.3 Particular points of Table 4 . 29
4.5 Rated short-time withstand current (I ) . 30
k
4.6 Rated peak withstand current (I ) . 31
p
4.7 Rated duration of short-circuit (t ) . 31
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) . 31
a
4.9 Rated supply frequency of closing and opening devices and of auxiliary
circuits . 31
4.10 Rated pressure of compressed gas supply for controlled pressure systems . 31
4.11 Rated filling levels for insulation and/or operation. 31
4.101 Rated minimum tripping current (I ) . 31
>min
4.102 Rated symmetrical interrupting current (short-circuit breaking current) . 32
Published by IEC under license from IEEE. © 2012 IEEE. All rights reserved.

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IEC 62271-111:2012(E) – 3 –

IEEE Std C37.60-2012(E)



4.103 Transient recovery voltage related to rated symmetrical interrupting

current . 32

4.103.1 General . 32

4.103.2 Representation of TRV waves . 32

4.103.3 Representation of TRV . 33

4.103.4 Standard values of TRV related to the rated short-circuit breaking

current . 34

4.103.4.1 General . 34

4.103.4.2 First-pole-to-clear factor (k ) . 35
pp
4.103.4.3 Rate of rise of recovery voltage (RRRV) . 36
4.104 Rated symmetrical making current (short-circuit making current) . 43
4.105 Rated operating sequence . 45
4.106 Rated line and cable charging interrupting currents . 45
5 Design and construction . 45
5.1 Requirements for liquids in switchgear and controlgear . 45
5.1.1 Liquid level . 45
5.1.2 Liquid quality . 46
5.1.3 Oil sampling provision (submersible reclosers/FIs) . 46
5.2 Requirements for gases in switchgear and controlgear . 46
5.3 Earthing of switchgear and controlgear . 46
5.4 Auxiliary and control equipment . 46
5.5 Dependent power operation . 46
5.6 Stored energy operation . 46
5.7 Independent manual operation or power operation (independent unlatched
operation) . 46
5.8 Operation of releases . 47
5.8.1 Shunt closing release . 47
5.8.2 Shunt opening release . 47
5.8.3 Capacitor operation of shunt releases . 47
5.8.4 Under-voltage release . 47
5.9 Low- and high- pressure interlocking devices and monitoring devices . 47
5.10 Nameplates . 48
5.11 Interlocking devices . 49
5.12 Position indication . 50
5.13 Degrees of protection provided by enclosures . 50

5.13.1 Protection of persons against access to hazardous parts and
protection of the equipment against ingress of solid foreign
objects (IP coding) . 50
5.13.2 Protection against ingress of water (IP coding) . 50
5.13.3 Protection of equipment against mechanical impact under normal
service conditions (IK coding) . 50
5.13.101 Enclosure design and coating system requirements . 50
5.14 Creepage distances for outdoor insulators . 50
5.15 Gas and vacuum tightness . 51
5.15.1 Controlled pressure systems for gas . 51
5.15.2 Closed pressure systems for gas . 51
5.15.3 Sealed pressure systems . 51
5.15.101 Design and withstand . 51
5.15.102 Leak rate . 51
Published by IEC under license from IEEE. © 2012 IEEE. All rights reserved.

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 IEEE Std C37.60-2012(E)



5.16 Liquid tightness . 52

5.17 Fire hazard (flammability) . 52

5.18 Electromagnetic compatibility (EMC) . 52

5.19 X-ray emission . 52

5.101 Tank construction: submersible or dry vault reclosers/FIs . 52

5.101.1 Tank material and finish . 52

5.101.2 Water entrapment . 52

5.101.3 Tank support . 52

5.101.4 Lifting lugs . 52

5.102 Counters . 52
5.103 Conductor terminal sizes . 52
5.104 Stored mechanism charge indicator . 53
6 Type tests . 53
6.1 General . 53
6.1.1 Grouping of tests . 53
6.1.2 Information for identification of specimens . 54
6.1.3 Information to be included in type-test reports . 54
6.1.101 Test conditions . 55
6.2 Dielectric tests . 56
6.2.1 Ambient air conditions during tests . 56
6.2.2 Wet test procedure . 56
6.2.3 Conditions of switchgear and controlgear during dielectric tests . 56
6.2.4 Criteria to pass the test . 57
6.2.5 Application of the test voltage and test conditions . 57
6.2.6 Tests of switchgear and controlgear of U ≤ 245 kV . 57
r
6.2.7 Test of switchgear and controlgear of U > 245 kV . 58
r
6.2.8 Artificial pollution tests for outdoor insulators. 58
6.3 Radio intereference voltage (r.i.v.) test . 58
6.4 Measurement of the resistance of circuits . 58
6.4.1 Main circuit . 58
6.4.2 Auxiliary circuits . 59
6.5 Temperature-rise tests . 59
6.5.1 Condition of the switchgear and controlgear to be tested . 59
6.5.2 Arrangement of the equipment . 59

6.5.3 Measurement of the temperature and the temperature rise . 60
6.5.4 Ambient air temperature . 60
6.5.5 Temperature-rise test of the auxiliary and control equipment . 60
6.5.6 Interpretation of the temperature-rise tests . 61
6.6 Short time withstand current and peak withstand current tests . 61
6.7 Verification of the protection . 61
6.8 Tightness tests . 61
6.8.1 Controlled pressure systems for gas . 61
6.8.2 Closed pressure systems for gas . 61
6.8.3 Sealed pressure systems . 62
6.8.4 Liquid tightness tests . 62
6.9 Electromagnetic compatibility tests (EMC) . 62
6.10 Additional tests on auxiliary and control circuits . 62
Published by IEC under license from IEEE. © 2012 IEEE. All rights reserved.

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IEC 62271-111:2012(E) – 5 –

IEEE Std C37.60-2012(E)



6.11 X-radiation test procedure for vacuum interrupters . 62

6.101 Line charging current and cable charging current interruption tests. 62

6.101.1 Applicability . 62

6.101.2 General . 63

6.101.3 Characteristics of supply circuits . 63

6.101.4 Earthing (grounding) of the supply circuit. 63

6.101.5 Characteristics of the capacitive circuit to be switched . 64

6.101.6 Waveform of the current . 64

6.101.7 Test voltage . 64

6.101.8 Test current . 65
6.101.9 Test-duties . 65
6.101.10 Criteria to pass the test . 67
6.102 Making current capability . 67
6.102.1 Test procedure . 67
6.102.2 Criteria for passing making current tests . 67
6.103 Rated symmetrical interrupting current tests . 67
6.103.1 General . 67
6.103.2 Interrupting performance . 69
6.103.3 Verification of rated symmetrical interrupting current . 69
6.103.4 Standard operating duty test; automatic operation. 70
6.103.5 Operating duty test; non-reclosing fault interrupters . 71
6.103.6 Condition of recloser/FI after operating duty test . 71
6.104 Critical current tests . 71
6.104.1 Applicability . 71
6.104.2 Test current . 71
6.104.3 Critical current test-duty . 71
6.105 Minimum tripping current tests . 72
6.105.1 Test circuit . 72
6.105.2 Test procedures . 72
6.106 Partial discharge (corona) tests . 72
6.106.1 Test voltages and limits . 72
6.106.2 Conditioning of test sample . 72
6.106.3 Test equipment and procedure . 72
6.106.4 Partial discharge test report . 73
6.107 Surge current test; series-trip reclosers/FIs . 73

6.107.1 General . 73
6.107.2 Test conditions . 73
6.107.3 Test procedure . 73
6.107.4 Condition after test. 74
6.108 Time-current tests. 74
6.108.1 Test conditions . 74
6.108.2 Test procedure . 74
6.108.3 Presentation of data standard time-current curves . 74
6.109 Mechanical duty test . 75
6.109.1 General . 75
6.109.2 Mechanical duty test . 75
6.109.3 Condition of recloser/FI following mechanical operation test . 75
Published by IEC under license from IEEE. © 2012 IEEE. All rights reserved.

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 IEEE Std C37.60-2012(E)



6.110 Ice loading test . 76

6.110.1 General . 76

6.110.2 Applicability . 76

6.110.3 Ice formations . 76

6.110.4 Test program . 76

6.110.5 Acceptance criteria . 78

6.111 Control electronic elements surge withstand capability (SWC) tests . 79

6.111.1 General . 79

6.111.2 Oscillatory and fast transient surge tests . 79

6.111.3 Simulated surge arrester operation test . 79
6.112 Condition of recloser/FI after each test of 6.101, 6.103 and 6.104 . 81
6.112.1 General requirements . 81
6.112.2 Specific requirement for vacuum interrupters in SF insulated
6
equipment . 82
7 Routine tests . 82
7.1 Dielectric test on the main circuit . 83
7.2 Tests on auxiliary and control circuits . 83
7.3 Measurement of the resistance of the main circuit . 83
7.4 Tightness test . 83
7.4.1 Sealed pressure systems . 83
7.4.2 Liquid tightness tests . 83
7.101 Reclosing and overcurrent trip calibration . 84
7.102 Partial discharge test . 84
7.103 Mechanical operations tests . 84
8 Guide to the selection of switchgear and controlgear . 84
9 Information to be given with enquiries, tenders and orders . 85
10 Transport, storage, installation, operation and maintenance . 85
11 Safety . 85
12 Influence of the product on the environment . 85
101 Additional application and test information . 85
101.1 Field tests on units in-service, including d.c. withstand tests on cables . 85
101.2 Internal arc classification . 86
Annex A (informative) X/R Ratios . 87
A.1 General . 87

A.2 Time constant τ and X/R ratio . 87
A.3 Asymmetrical fault current . 87
Annex B (informative) Simulated surge arrester operation test . 89
B.1 General . 89
B.2 Simulated surge arrester operation testing .
...