IEC 62271-104:2015

High-voltage switchgear and controlgear - Part 104: Alternating current switches for rated voltages higher than 52 kV

IEC 62271-104:2015 is applicable to three-pole alternating current switches for rated voltages higher than 52 kV, having making and breaking current ratings, for indoor and outdoor installations, and for rated frequencies up to and including 60 Hz. This standard is also applicable to the operating devices of these switches and to their auxiliary equipment. This second edition replaces and cancels the first edition published in 2009 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- the title was changed such that the voltage range now is >52 kV instead of ≥52 kV;
- the references have been updated;
- the comments in 17A/1063/RVC have been addressed.
This publication is to be read in conjunction with IEC 62271-1:2007, IEC 62271-100:2008, IEC 62271-102:2001  and IEC 62271-110:2012.

Appareillage à haute tension - Partie 104: Interrupteurs à courant alternatif pour tensions assignées supérieures à 52 kV

L'IEC 62271-104:2015 est applicable aux interrupteurs à courant alternatif triphasé de tension assignée supérieure à 52 kV, ayant des pouvoirs de coupure et de fermeture assignés, prévus pour les installations à l'intérieur et à l'extérieur, et de fréquence assignée inférieure ou égale à 60 Hz. La présente norme est également applicable aux dispositifs de manoeuvre de ces interrupteurs et à leurs équipements auxiliaires. Cette seconde édition annule et remplace la première édition parue en 2009, et constitue une révision technique. Cette édition comprend les modifications techniques significatives suivantes par rapport à l'édition précédente:
- le titre a été changé pour que la gamme de tension soit >52 kV au lieu de ≥52 kV;
- les références ont été mises à jour;
- les commentaires du 17A/1063/RVC ont été pris en compte.
Cette publication doit être lue conjointement avec la CEI 62271-1:2007, la CEI 62271-100:2008, la CEI 62271-102:2001  et la CE 62271-100:2012.I

Standards Content (sample)

IEC 62271-104
Edition 2.0 2015-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 104: Alternating current switches for rated voltages higher than 52 kV
Appareillage à haute tension –
Partie 104: Interrupteurs à courant alternatif pour tensions assignées
supérieures à 52 kV
IEC 62271-104:2015-02(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62271-104
Edition 2.0 2015-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 104: Alternating current switches for rated voltages higher than 52 kV
Appareillage à haute tension –
Partie 104: Interrupteurs à courant alternatif pour tensions assignées
supérieures à 52 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-2245-4

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

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62271-104:2015  IEC 2015
CONTENTS

FOREWORD ......................................................................................................................... 6

1 General ......................................................................................................................... 8

1.1 Scope ................................................................................................................... 8

1.2 Normative references ............................................................................................ 9

2 Normal and special service conditions ............................................................................ 9

3 Terms and definitions .................................................................................................... 9

3.1 General terms ....................................................................................................... 9

3.2 Assemblies ........................................................................................................... 9

3.3 Parts of assemblies ............................................................................................... 9

3.4 Switching devices ............................................................................................... 10

3.6 Operation ............................................................................................................ 11

3.7 Characteristic quantities ...................................................................................... 11

4 Ratings ........................................................................................................................ 13

4.1 Rated voltage (U ) ............................................................................................... 13

4.2 Rated insulation level .......................................................................................... 13

4.3 Rated frequency (f ) ............................................................................................ 13

4.4 Rated normal current and temperature rise (I ) .................................................... 13

4.5 Rated short-time withstand current (I ) ................................................................ 13

4.6 Rated peak withstand current (I ) ........................................................................ 13

4.7 Rated duration of short-circuit (t ) ....................................................................... 13

4.8 Rated supply voltage of closing and opening devices and of auxiliary and

control circuits (U ) ............................................................................................. 13

4.9 Rated supply frequency of closing and opening devices and of auxiliary

circuits ................................................................................................................ 13

4.10 Rated pressure of compressed gas supply for controlled pressure systems .......... 14

4.11 Rated filling levels for insulation and/or operation ................................................ 14

4.101 Rated earth fault breaking current ....................................................................... 14

4.102 Rated short-circuit making current ....................................................................... 14

4.103 Rated mainly active load-breaking current ........................................................... 14

4.104 Rated closed-loop breaking current ..................................................................... 14

4.105 Rated capacitive switching currents ..................................................................... 14

4.105.1 Rated line-charging breaking current ............................................................ 14

4.105.2 Rated cable-charging breaking current ......................................................... 14

4.105.3 Rated single capacitor bank breaking current ................................................ 14

4.105.4 Rated back-to-back capacitor bank breaking current ..................................... 14

4.105.5 Single capacitor bank inrush making current ................................................. 15

4.105.6 Rated back-to-back capacitor bank inrush making current ............................. 15

4.105.7 Rated cable and line-charging breaking current under earth fault

conditions ........................................................................................................... 15

4.106 Inductive load switching ...................................................................................... 15

4.106.1 Shunt reactor breaking current ..................................................................... 15

4.106.2 Rated no-load transformer breaking current .................................................. 15

4.107 Rated mechanical terminal load ........................................................................... 15

4.108 Coordination of rated values for a general-purpose switch .................................... 15

4.109 Coordination of rated values for limited-purpose and special-purpose

switches ...................................................................................................................... 16

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IEC 62271-104:2015  IEC 2015 – 3 –

5 Design and construction .............................................................................................. 16

5.1 Requirements for liquids in high-voltage switches ................................................ 16

5.2 Requirements for gases in high-voltage switches ................................................. 16

5.3 Earthing of high-voltage switches ........................................................................ 17

5.4 Auxiliary and control equipment ........................................................................... 17

5.5 Dependent power operation ................................................................................. 17

5.6 Stored energy operation ...................................................................................... 17

5.7 Independent manual or power operation (independent unlatched operation) ......... 17

5.8 Operation of releases .......................................................................................... 17

5.9 Low- and high-pressure interlocking and monitoring devices ................................ 17

5.10 Nameplates ......................................................................................................... 17

5.11 Interlocking devices ............................................................................................ 18

5.12 Position indication ............................................................................................... 19

5.13 Degree of protection provided by enclosures........................................................ 19

5.14 Creepage distances for outdoor insulators ........................................................... 19

5.15 Gas and vacuum tightness .................................................................................. 19

5.16 Liquid tightness ................................................................................................... 19

5.17 Fire hazard (flammability) .................................................................................... 19

5.18 Electromagnetic compatibility (EMC) .................................................................... 19

5.19 X-ray emission .................................................................................................... 19

5.20 Corrosion ............................................................................................................ 19

5.101 Closing mechanism ............................................................................................. 19

5.102 Mechanical strength ............................................................................................ 19

5.103 Position of the movable contact system and its indicating or signalling device ...... 19

5.103.1 Securing the position ................................................................................... 19

5.103.2 Indication of position .................................................................................... 20

5.103.3 Auxiliary contacts for signalling .................................................................... 20

6 Type tests ................................................................................................................... 20

6.1 General ............................................................................................................... 20

6.2 Dielectric tests .................................................................................................... 21

6.3 Radio interference voltage (r.i.v.) tests ................................................................ 22

6.4 Measurement of the resistance of circuits ............................................................ 22

6.5 Temperature rise tests ........................................................................................ 22

6.6 Short-time withstand current and peak withstand current tests ............................. 22

6.7 Verification of the protection ................................................................................ 22

6.8 Tightness tests .................................................................................................... 22

6.9 Electromagnetic compatibility tests (EMC) ........................................................... 22

6.10 Additional tests on auxiliary and control circuits ................................................... 22

6.11 X-radiation test procedure for vacuum interrupters ............................................... 22

6.101 Mechanical operation tests .................................................................................. 22

6.101.1 Arrangement of the switch for tests .............................................................. 22

6.101.2 Tests for general-purpose switches .............................................................. 23

6.101.3 Tests for limited-purpose and special-purpose switches ................................ 24

6.101.4 Condition of switch during and after mechanical operation tests .................... 24

6.101.5 Operation under severe ice conditions .......................................................... 24

6.101.6 Static terminal load tests .............................................................................. 24

6.102 Miscellaneous provision for making and breaking tests ........................................ 25

6.102.1 Arrangement of the switch for tests .............................................................. 25

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– 4 – IEC 62271-104:2015  IEC 2015

6.102.2 Behaviour of switch during breaking tests ..................................................... 26

6.102.3 Condition of switch after breaking tests ........................................................ 26

6.102.4 Condition of switch during and after short-circuit making tests ....................... 26

6.103 Test circuits for making and breaking tests .......................................................... 27

6.103.1 General ....................................................................................................... 27

6.103.2 Earthing of test circuit and switch ................................................................. 27

6.103.3 Mainly active load circuit (test duty 1 and test duty 3) ................................... 28

6.103.4 Closed-loop circuits (test duty 2) .................................................................. 31

6.103.5 Test circuits for short-circuit making tests (test duty 6) .................................. 35

6.103.6 Test circuits for breaking tests under earth fault conditions (test duties

7a and 7b) .................................................................................................... 37

6.104 Test quantities .................................................................................................... 37

6.104.1 Test frequency ............................................................................................. 37

6.104.2 Test voltage for breaking tests ..................................................................... 37

6.104.3 Breaking current .......................................................................................... 38

6.104.4 Test voltage for short-circuit making tests ..................................................... 39

6.104.5 Short-circuit making current.......................................................................... 40

6.105 Capacitive current switching tests ........................................................................ 40

6.105.1 Applicability ................................................................................................. 40

6.105.2 General ....................................................................................................... 41

6.105.3 Characteristics of supply circuits .................................................................. 41

6.105.4 Earthing of the supply circuit ........................................................................ 41

6.105.5 Characteristics of the capacitive circuit to be switched .................................. 41

6.105.6 Waveform of the current ............................................................................... 41

6.105.7 Test voltage ................................................................................................. 41

6.105.8 Test current ................................................................................................. 42

6.105.9 Test duties ................................................................................................... 42

6.105.10 Tests with specified TRV .............................................................................. 43

6.105.11 Criteria to pass the test ................................................................................ 43

6.106 Inductive load switching (test duty 5) ................................................................... 43

6.106.1 No-load transformer circuit (test duty 5a) ...................................................... 43

6.106.2 Shunt-reactor current switching tests (test duty 5b) ....................................... 43

6.107 Tests for general-purpose switches ..................................................................... 44

6.108 Tests for limited-purpose switches ....................................................................... 45

6.109 Tests for special-purpose switches ...................................................................... 45

6.110 Type test reports ................................................................................................. 45

7 Routine tests ............................................................................................................... 46

7.1 Dielectric tests on main circuit ............................................................................. 46

7.2 Tests on auxiliary and control circuits .................................................................. 46

7.3 Measurement of the resistance of the main circuit ................................................ 46

7.4 Tightness test ..................................................................................................... 46

7.5 Design and visual checks .................................................................................... 46

7.101 Mechanical operating tests .................................................................................. 46

8 Guide to the selection of high-voltage switches ............................................................ 47

8.1 Selection of rated values ..................................................................................... 47

8.2 Continuous or temporary overload due to changed service conditions .................. 47

8.101 General ............................................................................................................... 47

8.102 Conditions affecting application ........................................................................... 47

---------------------- Page: 6 ----------------------
IEC 62271-104:2015  IEC 2015 – 5 –

8.103 Insulation coordination ........................................................................................ 47

9 Information to be given with enquiries, tenders and orders ............................................ 48

9.1 Information with enquiries and orders .................................................................. 48

9.2 Information with tenders ...................................................................................... 48

10 Transport, storage, installation, operation and maintenance.......................................... 48

11 Safety ......................................................................................................................... 48

12 Influence of the high-voltage switch on the environment ............................................... 48

Bibliography ....................................................................................................................... 49

Figure 1 – Single-phase test circuit for mainly active load current switching for test

duties 1 and 3 ..................................................................................................................... 28

Figure 2 – Single-phase test circuit for transmission line closed loop and parallel-

transformer current switching test, for test duties 2a and 2b ................................................. 28

Figure 3 – Three-phase test circuit for mainly active load current switching, for test

duties 1 and 3 ..................................................................................................................... 29

Figure 4 – Supply and load side transient for mainly active load current switching tests

(see Table 4) ...................................................................................................................... 30

Figure 5 – Three-phase test circuit for transmission line closed loop and parallel-

transformer current switching test for test duties 2a and 2b .................................................. 31

Figure 6 – Illustration of the transient associated with transmission line closed loop

current breaking tests (see Table 5) .................................................................................... 33

Figure 7 – Three-phase test circuit for short circuit making current test for test duty 6 .......... 36

Figure 8 – Single-phase test circuit for short circuit making current test for test duty 6 ......... 36

Table 1 – Preferred values of line- and cable-charging breaking currents for a general-

purpose switch ................................................................................................................... 16

Table 2 – Nameplate information ......................................................................................... 18

Table 3 – Type tests ........................................................................................................... 21

Table 4 – Supply circuit TRV parameters for mainly active load current breaking tests ......... 30

Table 5 – TRV parameters for transmission line closed loop current breaking tests .............. 32

Table 6 – Test duties for single-phase tests on three-pole switches having a non-

simultaneity between poles of 0,25 cycle or less .................................................................. 33

Table 7 – Test duties for single-phase tests on three-pole switches having more than

0,25 cycle non-simultaneity and switches operated pole after pole ....................................... 34

Table 8 – TRV parameters for parallel transformer current breaking tests............................. 35

Table 9 – Test duties for three-phase tests on three-pole switches ...................................... 37

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– 6 – IEC 62271-104:2015  IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 104: Alternating current switches
for rated voltages higher than 52 kV
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