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

IEC 62271-104:2020 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 third edition replaces and cancels the second edition published in 2015. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- new numbering, following IEC 62271-1:2017.

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

L'IEC 62271-104:2020 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.
Cette troisième édition remplace et annule la deuxième édition parue en 2015. Elle constitue une révision technique.
Cette édition inclut la modification technique majeure suivante par rapport à l'édition précédente:
- nouvelle numérotation selon l'IEC 62271-1:2017.

General Information

Status
Published
Publication Date
20-Aug-2020
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
21-Aug-2020
Ref Project

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IEC 62271-104
Edition 3.0 2020-08
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 62271-104:2020-08(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62271-104
Edition 3.0 2020-08
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 978-2-8322-8609-8

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
---------------------- Page: 3 ----------------------
– 2 – IEC 62271-104:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 5

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 8

3.1 General terms and definitions ................................................................................. 8

3.2 Assemblies ............................................................................................................. 8

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

3.4 Switching devices ................................................................................................... 9

3.5 Parts of switches .................................................................................................. 10

3.6 Operational characteristics of switches ................................................................. 10

3.7 Characteristic quantities ....................................................................................... 10

4 Normal and special service conditions ........................................................................... 12

5 Ratings .......................................................................................................................... 12

5.1 General ................................................................................................................. 12

5.2 Rated voltage (U ) ................................................................................................ 12

5.3 Rated insulation level (U , U , U ) ....................................................................... 12

d p s

5.4 Rated frequency (f ) .............................................................................................. 12

5.5 Rated continuous current (I ) ................................................................................ 12

5.6 Rated short-time withstand current (I ) ................................................................. 12

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

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

5.9 Rated supply voltage of auxiliary and control circuits (U ) .................................... 13

5.10 Rated supply frequency of auxiliary and control circuits ........................................ 13

5.11 Rated pressure of compressed gas supply for controlled pressure systems .......... 13

5.101 Rated earth fault breaking current ......................................................................... 13

5.102 Rated short-circuit making current ........................................................................ 13

5.103 Rated mainly active load-breaking current ............................................................ 13

5.104 Rated closed-loop breaking current ....................................................................... 13

5.105 Rated capacitive switching currents ...................................................................... 13

5.106 Inductive load switching ........................................................................................ 14

5.107 Rated static mechanical terminal load ................................................................... 15

5.108 Coordination of rated values for a general purpose switch .................................... 15

5.109 Coordination of rated values for limited purpose and special purpose

switches ................................................................................................................ 15

6 Design and construction ................................................................................................ 16

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

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

6.3 Earthing of high-voltage switches .......................................................................... 16

6.4 Auxiliary and control equipment and circuits ......................................................... 16

6.5 Dependent power operation .................................................................................. 16

6.6 Stored energy operation ........................................................................................ 16

6.7 Independent unlatched operation (independent manual or power operation) ......... 16

6.8 Manually operated actuators ................................................................................. 16

6.9 Operation of releases ............................................................................................ 16

6.10 Pressure/level indication ....................................................................................... 16

6.11 Nameplates........................................................................................................... 16

---------------------- Page: 4 ----------------------
IEC 62271-104:2020 © IEC 2020 – 3 –

6.12 Locking devices .................................................................................................... 17

6.13 Position indication ................................................................................................. 18

6.14 Degree of protection provided by enclosures ........................................................ 18

6.15 Creepage distances for outdoor insulators ............................................................ 18

6.16 Gas and vacuum tightness .................................................................................... 18

6.17 Tightness for liquid systems .................................................................................. 18

6.18 Fire hazard (flammability) ..................................................................................... 18

6.19 Electromagnetic compatibility (EMC) ..................................................................... 18

6.20 X-ray emission ...................................................................................................... 18

6.21 Corrosion .............................................................................................................. 18

6.22 Filling levels for insulation, switching and/or operation .......................................... 18

6.101 Closing mechanism ............................................................................................... 18

6.102 Mechanical strength .............................................................................................. 18

6.103 Position of the movable contact system and its indicating or signalling device ...... 18

7 Type tests ..................................................................................................................... 19

7.1 General ................................................................................................................. 19

7.2 Dielectric tests ...................................................................................................... 20

7.3 Radio interference voltage (RIV) tests ................................................................... 21

7.4 Resistance measurement ...................................................................................... 21

7.5 Continuous current tests ....................................................................................... 21

7.6 Short-time withstand current and peak withstand current tests .............................. 21

7.7 Verification of the protection ................................................................................. 21

7.8 Tightness tests ..................................................................................................... 21

7.9 Electromagnetic compatibility tests (EMC) ............................................................ 21

7.10 Additional tests on auxiliary and control circuits .................................................... 21

7.11 X-radiation test for vacuum interrupters ................................................................ 21

7.101 Mechanical operation tests ................................................................................... 22

7.102 Miscellaneous provision for making and breaking tests ......................................... 24

7.103 Test circuits for making and breaking tests ........................................................... 26

7.104 Test quantities ...................................................................................................... 36

7.105 Capacitive current tests ........................................................................................ 40

7.106 Inductive load switching (test duties TD and TD ) .................................... 43

notr shunt

7.107 Tests for general purpose switches ....................................................................... 43

7.108 Tests for limited purpose switches ........................................................................ 44

7.109 Tests for special purpose switches ........................................................................ 44

7.110 Type test reports ................................................................................................... 45

8 Routine tests ................................................................................................................. 46

8.1 General ................................................................................................................. 46

8.2 Dielectric tests on the main circuit ......................................................................... 46

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

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

8.5 Tightness test ....................................................................................................... 46

8.6 Design and visual checks ...................................................................................... 46

8.101 Mechanical operating tests ................................................................................... 46

9 Guide to the selection of high-voltage switches (informative) ......................................... 47

9.1 General ................................................................................................................. 47

9.2 Selection of rated values ....................................................................................... 47

9.3 Cable-interface considerations .............................................................................. 47

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

---------------------- Page: 5 ----------------------
– 4 – IEC 62271-104:2020 © IEC 2020

9.5 Environmental aspects .......................................................................................... 47

9.101 General ................................................................................................................. 47

9.102 Conditions affecting application ............................................................................ 47

9.103 Insulation coordination .......................................................................................... 47

10 Information to be given with enquiries, tenders and orders (informative) ........................ 48

11 Transport, storage, installation, operating instructions and maintenance........................ 48

12 Safety ............................................................................................................................ 48

13 Influence of the product on the environment .................................................................. 48

Annex A (normative) Tolerances on test quantities during tests ........................................... 49

Bibliography .......................................................................................................................... 52

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

duties TD and TD ................................................................................................. 27

load1 load2

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

transformer current switching test, for test duties TD and TD ................................... 27

loop pptr

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

duties TD and TD ................................................................................................. 28

load1 load2

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

(see Table 4) ........................................................................................................................ 29

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

transformer current switching test for test duties TD and TD .................................... 30

loop pptr

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

current breaking tests (see Table 5) ...................................................................................... 32

Figure 7 – Three-phase test circuit for short circuit making current test

for test duty TD ................................................................................................................ 35

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

TD .................................................................................................................................... 35

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

purpose switch ...................................................................................................................... 15

Table 2 – Nameplate information .......................................................................................... 17

Table 3 – Type tests ............................................................................................................. 20

Table 4 – Supply circuit TRV parameters for mainly active load current breaking tests ......... 29

Table 5 – TRV parameters for transmission line closed-loop current breaking tests .............. 31

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

simultaneity between poles of 0,25 cycle or less ................................................................... 32

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 ........................................ 33

Table 8 – TRV parameters for parallel transformer current breaking tests ............................. 34

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

Table A.1 – Tolerances on test quantities during type tests (1 of 3) ...................................... 49

---------------------- Page: 6 ----------------------
IEC 62271-104:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 104: Alternating current switches
for rated voltages higher than 52 kV
FOREWORD

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62271-104 has been prepared by subcommittee 17A: Switching

devices, of IEC technical committee 17: High-voltage switchgear and controlgear.

This third edition replaces and cancels the second edition published in 2015. It constitutes a

technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
– new numbering, following IEC 62271-1:2017.
---------------------- Page: 7 ----------------------
– 6 – IEC 62271-104:2020 © IEC 2020
The text of this document is based on the following documents:
FDIS Report on voting
17A/1273/FDIS 17A/1278/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

This standard is to be read in conjunction with IEC 62271-1:2017, IEC 62271-100: ,

IEC 62271-102:2018 and IEC 62271-110:2017. In order to simplify the indication of

corresponding requirements, the same numbering of clauses and subclauses is used as in

IEC 62271-1. Modifications to these clauses and subclauses are given under the same

numbering, whilst additional subclauses are numbered from 101.

A list of all parts in the IEC 62271 series, published under the general title High-voltage

switchgear and controlgear, can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
___________
Under preparation. Stage at the time of publication: IEC CCDV 62271-100:2020.
---------------------- Page: 8 ----------------------
IEC 62271-104:2020 © IEC 2020 – 7 –
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 104: Alternating current switches
for rated voltages higher than 52 kV
1 Scope

This part of IEC 62271 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 document is also applicable to the operating devices of these switches and to their

auxiliary equipment.
NOTE 1 Switches for gas insulated switchgear are covered by this document.

NOTE 2 Switches having a disconnecting function and called switch-disconnectors are also covered by

IEC 62271-102.

NOTE 3 Earthing switches are not covered by this document. Earthing switches forming an integral part of a

switch are covered by IEC 62271-102.

The main object of this document is to establish requirements for switches used in

transmission and distribution systems. General purpose switches for this application are

designed to comply with the following service applications:
– carrying rated continuous current;
– carrying short-circuit currents for a specified time;
– switching of mainly active loads;
– switching of no-load transformers;

– switching of the charging current of unloaded cables, overhead lines or busbars;

– switching of closed-loop circuits;
– making short-circuit currents.

A further object of this document is to establish requirements for limited purpose and special

purpose switches used in transmission and distribution systems.

Limited purpose switches comply with one or more of the service applications indicated above.

Special purpose switches may comply with one or more of the service applications indicated

above and, in addition, are suitable for one or more of the following applications:

– switching single capacitor banks;
– switching back-to-back capacitor banks;

– switching shunt reactors including secondary or tertiary reactors switched from the primary

side of the transformer;
– applications requiring an increased number of operating cycles;

– switching under earth fault conditions in non-effectively earthed neutral systems.

---------------------- Page: 9 ----------------------
– 8 – IEC 62271-104:2020 © IEC 2020
2 Normative references
The following documents are referred to in the text in such a
...

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