IEC 62271-212:2016

High-voltage switchgear and controlgear - Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)

IEC 62271-212:2016 specifies the service conditions, rated characteristics, general structural requirements and test methods of the assemblies of the main electrical functional units of a high-voltage/low-voltage distribution substation, duly interconnected, for alternating current of rated operating voltages above 1 kV and up to and including 52 kV on the high-voltage side, service frequency 50 Hz or 60 Hz. This assembly is to be cable-connected to the network, and intended for installation within an indoor or outdoor closed electrical operating area.
This publication is to be read in conjunction with IEC 62271-1:2007

Appareillage à haute tension - Partie 212: Ensemble Compact d'Équipement pour Postes de Distribution (ECEPD)

L'IEC 62271-212:2016 spécifie les conditions de service, les caractéristiques assignées, les exigences structurelles générales et les méthodes d'essai des ensembles des principales unités fonctionnelles électriques d'un poste de distribution haute tension/basse tension, dûment interconnecté, pour le courant alternatif à des tensions de fonctionnement assignées supérieures à 1 kV et inférieures ou égales à 52 kV du côté haute tension, avec une fréquence de service de 50 Hz ou 60 Hz. Cet ensemble doit être raccordé par câble au réseau, et il est destiné à être installé dans un local de service électrique fermé en intérieur ou en extérieur.
Cette publication doit être lue conjointement avec l'IEC 62271-1:2007.

General Information

• Status: Published
• Publication Date: 25-Oct-2016
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: SC 17C - Assemblies
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 29-Jun-2022

Standards Content (sample)

IEC 62271-212
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)
Appareillage à haute tension –
Partie 212: Ensemble Compact d'Equipement pour Postes de Distribution
(ECEPD)
IEC 62271-212:2016-10(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62271-212
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)
Appareillage à haute tension –
Partie 212: Ensemble Compact d'Equipement pour Postes de Distribution
(ECEPD)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-3633-8

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 62271-212:2016 © IEC 2016
CONTENTS

FOREWORD ........................................................................................................................... 7

INTRODUCTION ..................................................................................................................... 9

1 General ......................................................................................................................... 10

1.1 Scope ................................................................................................................... 10

1.2 Normative references ............................................................................................ 10

2 Normal and special service conditions ........................................................................... 12

2.1 Normal service conditions ..................................................................................... 12

2.2 Special service conditions ..................................................................................... 12

3 Terms and definitions .................................................................................................... 12

4 Ratings .......................................................................................................................... 14

4.1 Rated voltage ....................................................................................................... 14

4.2 Rated insulation level ............................................................................................ 15

4.3 Rated frequency (f ) .............................................................................................. 15

4.4 Rated normal current and temperature rise ........................................................... 15

4.4.1 Rated normal current (I ,I ) ........................................................................ 15

r nA

4.4.2 Temperature rise ........................................................................................... 15

4.5 Rated short-time withstand currents (I , I , I ) .................................................. 16

k ke cw
4.5.101 Rated short-time phase to phase and rated short-time phase to earth
withstand currents of high-voltage functional unit and rated short-time

withstand current of high-voltage interconnection (I , I ) ............................. 16

k ke
4.5.102 Rated short-time withstand currents of low-voltage functional unit and

low-voltage interconnection (I )................................................................... 16

4.5.103 Short-time withstand currents of high-voltage/low-voltage transformer

functional unit ................................................................................................ 16

4.6 Rated peak withstand currents (I , I , I ) ......................................................... 16

p pe pk
4.6.101 Rated peak phase to phase and rated peak phase to earth withstand
currents of high-voltage functional unit and rated peak withstand current

of high-voltage interconnection (I , I ) ........................................................ 16

p pe
4.6.102 Rated peak withstand currents of low-voltage and low-voltage

interconnection (I ) ...................................................................................... 17

4.6.103 Peak withstand currents of high-voltage/low-voltage transformer

functional unit ................................................................................................ 17

4.7 Rated durations of short circuit (t , t , t ) .......................................................... 17

k ke cw

4.7.101 Rated duration of phase to phase short circuit (t ) and rated duration of

phase to earth short circuit (t ) of high-voltage functional unit and

rated duration of short-circuit of high-voltage interconnection ........................ 17

4.7.102 Rated duration of short circuit (t ) for low-voltage functional unit and

low-voltage interconnection ........................................................................... 17

4.7.103 Duration of short circuit for high-voltage/low-voltage transformer

functional unit ................................................................................................ 17

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

control circuits ...................................................................................................... 17

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

circuits .................................................................................................................. 17

4.101 Rated power and total losses of CEADS ............................................................... 18

4.102 Ratings of the internal arc classification (IAC) ....................................................... 18

4.102.1 General ......................................................................................................... 18

4.102.2 Types of accessibility (A, B, AB) .................................................................... 18

4.102.3 Classified sides ............................................................................................. 18

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IEC 62271-212:2016 © IEC 2016 – 3 –

4.102.4 Rated arc fault currents (I , I ) ................................................................... 18

A Ae

4.102.5 Rated arc fault duration (t , t ) ................................................................... 19

A Ae

5 Design and construction ................................................................................................ 19

5.1 Requirements for liquids in switchgear and controlgear ......................................... 19

5.2 Requirements for gases in switchgear and controlgear ......................................... 20

5.3 Earthing of switchgear and controlgear ................................................................. 20

5.4 Auxiliary and control equipment ............................................................................ 20

5.5 Dependent power operation .................................................................................. 20

5.6 Stored energy operation ........................................................................................ 21

5.7 Independent manual or power operation (independent unlatched operation) ......... 21

5.8 Operation of releases ............................................................................................ 21

5.9 Low- and high-pressure interlocking and monitoring devices ................................. 21

5.10 Nameplates........................................................................................................... 21

5.11 Interlocking devices .............................................................................................. 21

5.12 Position indication ................................................................................................. 21

5.13 Degrees of protection provided by enclosures ....................................................... 21

5.14 Creepage distances for outdoor insulators ............................................................ 22

5.15 Gas and vacuum tightness .................................................................................... 22

5.16 Liquid tightness ..................................................................................................... 22

5.17 Fire hazard (flammability) ..................................................................................... 22

5.18 Electromagnetic compatibility (EMC) ..................................................................... 22

5.19 X-ray emission ...................................................................................................... 22

5.20 Corrosion .............................................................................................................. 23

5.101 Protection against mechanical stresses ................................................................ 23

5.102 Protection of the environment due to internal defects ............................................ 23

5.103 Internal arc fault .................................................................................................... 23

5.104 Enclosures ............................................................................................................ 24

5.105 Sound emission .................................................................................................... 24

5.106 Electromagnetic fields ........................................................................................... 24

6 Type tests ..................................................................................................................... 24

6.1 General ................................................................................................................. 24

6.1.1 Grouping of tests ........................................................................................... 25

6.1.2 Information for identification of test objects .................................................... 25

6.1.3 Information to be included in type-test reports ............................................... 25

6.2 Dielectric tests ...................................................................................................... 26

6.2.1 General ......................................................................................................... 26

6.2.2 Dielectric tests on the high-voltage interconnection ....................................... 26

6.2.3 Dielectric tests on the low-voltage interconnection ......................................... 27

6.2.4 Dielectric tests on high-voltage functional unit ............................................... 28

6.2.5 Dielectric tests on high-voltage/low-voltage transformer functional unit .......... 28

6.2.6 Dielectric tests on low-voltage functional unit ................................................. 28

6.2.7 Partial discharge test ..................................................................................... 29

6.3 Radio interference voltage (r.i.v) test .................................................................... 29

6.4 Measurement of the resistance of circuits ............................................................. 29

6.5 Temperature-rise tests .......................................................................................... 29

6.5.1 General ......................................................................................................... 29

6.5.2 Test conditions .............................................................................................. 29

6.5.3 Test methods ................................................................................................. 30

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– 4 – IEC 62271-212:2016 © IEC 2016
6.5.4 Special case of dry-type high-voltage/low-voltage transformer functional

unit ................................................................................................................ 33

6.5.5 Measurements ............................................................................................... 33

6.6 Short-time withstand current and peak withstand current tests .............................. 35

6.6.1 Short-time and peak withstand current tests on main circuit of high-

voltage and low-voltage functional units ......................................................... 35

6.6.2 Short-time and peak withstand current tests on high-voltage and low-

voltage interconnections ................................................................................ 35

6.6.3 Short-time and peak withstand current tests on earthing circuits .................... 35

6.6.4 Short-time and peak withstand current tests on high-voltage/low-voltage

transformer functional unit ............................................................................. 36

6.7 Verification of the protection, ................................................................................ 36

6.7.1 Verification of degree of protection (IP coding) .............................................. 36

6.7.2 Verification of resistance to mechanical impacts (IK coding) .......................... 36

6.8 Tightness tests ..................................................................................................... 36

6.9 Electromagnetic compatibility tests (EMC) ............................................................ 36

6.10 Additional tests on auxiliary and control circuits .................................................... 36

6.10.1 General ......................................................................................................... 36

6.10.2 Functional tests ............................................................................................. 37

6.10.3 Electrical continuity of earthed metallic parts test .......................................... 37

6.10.4 Verification of the operational characteristics of auxiliary contacts ................. 37

6.10.5 Environmental tests ....................................................................................... 37

6.10.6 Dielectric test ................................................................................................ 37

6.11 X-radiation test procedure for vacuum interrupters ................................................ 37

6.101 Internal arc test ..................................................................................................... 37

6.101.1 General ......................................................................................................... 37

6.101.2 Test conditions .............................................................................................. 38

6.101.3 Arrangement of the equipment ....................................................................... 38

6.101.4 Test procedure .............................................................................................. 39

6.101.5 Criteria to pass the test ................................................................................. 39

6.101.6 Test report ..................................................................................................... 39

6.101.7 Extension of validity of test results ................................................................. 40

6.102 Verification of making and breaking capacities ...................................................... 40

6.103 Mechanical operation tests ................................................................................... 40

6.104 Mechanical stability test ........................................................................................ 40

6.105 Pressure withstand test for gas-filled compartments.............................................. 40

6.106 Measurements of leakage currents of non-metallic enclosures .............................. 41

6.107 Weatherproofing test ............................................................................................. 41

6.108 Tightness and mechanical strength for liquid filled compartments ......................... 41

6.109 Measurement or calculation of electromagnetic fields ........................................... 41

7 Routine tests ................................................................................................................. 42

7.1 Dielectric tests on the main circuit ......................................................................... 42

7.1.1 General ......................................................................................................... 42

7.1.2 Dielectric tests on high-voltage functional unit ............................................... 42

7.1.3 Dielectric tests on high-voltage/low-voltage transformer functional unit

and high-voltage interconnection ................................................................... 43

7.1.4 Dielectric tests on low-voltage functional unit and low-voltage

interconnection .............................................................................................. 43

7.2 Tests on auxiliary and control circuits ................................................................... 43

7.3 Measurement of the resistance of the main circuit ................................................. 43

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IEC 62271-212:2016 © IEC 2016 – 5 –

7.4 Tightness test ....................................................................................................... 43

7.5 Design and visual checks ...................................................................................... 43

7.101 Mechanical operation tests on high-voltage functional unit .................................... 43

7.102 Pressure tests of gas-filled compartments ............................................................. 43

7.103 Tests of auxiliary electrical, pneumatic and hydraulic devices ............................... 44

7.104 Measurement of the resistance of the windings ..................................................... 44

7.105 Measurement of the voltage ratio .......................................................................... 44

7.106 Measurement of the short circuit impedance and load losses ................................ 44

7.107 Measurement of no-load losses and current .......................................................... 44

7.108 Inspection of the low-voltage functional unit, including inspection of wiring

and, if necessary, electrical operation test ............................................................ 44

7.109 Checking of protective measures and of the electrical continuity of the

protective circuits of the low-voltage functional unit ............................................... 44

7.110 Tests after assembly on site ................................................................................. 44

8 Guide to the selection of CEADS ................................................................................... 44

8.1 Selection of rated values ....................................................................................... 45

8.2 Continuous or temporary overload due to changed service conditions ................... 45

8.101 Selection of internal arc classification ................................................................... 45

8.102 Information ........................................................................................................... 47

9 Information to be given with enquiries, tenders and orders ............................................ 51

9.1 Information with enquiries and orders ................................................................... 51

9.2 Information with tenders ........................................................................................ 52

10 Rules for transport, installation, operation and maintenance .......................................... 52

10.1 Conditions during transport, storage and installation ............................................. 53

10.2 Installation ............................................................................................................ 53

10.2.1 Unpacking and lifting ..................................................................................... 53

10.2.2 Assembly ....................................................................................................... 53

10.2.3 Mounting ....................................................................................................... 53

10.2.4 Final installation inspection ............................................................................ 53

10.3 Operation .............................................................................................................. 53

10.4 Maintenance ......................................................................................................... 54

10.5 Dismantling, recycling and disposal at the end of service life ................................ 54

11 Safety ............................................................................................................................ 54

11.101 Electrical aspects ............................................................................................... 54

11.102 Mechanical aspects ............................................................................................ 54

11.103 Thermal aspects ................................................................................................. 54

11.104 Internal arc aspects ............................................................................................ 54

12 Influence of the product on the environment .................................................................. 54

Annex AA (normative) Method for testing CEADS under conditions of arcing due to an

internal arc fault .................................................................................................................... 56

AA.1 General ................................................................................................................. 56

AA.2 Room simulation ................................................................................................... 56

AA.3 Indicators (for assessing the thermal effects of the gases) .................................... 56

AA.3.1 General ......................................................................................................... 56

AA.3.2 Arrangement of indicators .............................................................................. 57

AA.4 Tolerances for geometrical dimensions of test arrangements ................................ 58

AA.5 Test parameters .................................................................................................... 58

AA.6 Test procedure ...................................................................................................... 58

AA.7 Designation of the internal arc classification ......................................................... 59

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– 6 – IEC 62271-212:2016 © IEC 2016

Annex BB (normative) Test to verify the sound level of a CEADS ......................................... 68

BB.1 Purpose ................................................................................................................ 68

BB.2 Test object ............................................................................................................ 68

BB.3 Test method .......................................................................................................... 68

BB.4 Measurements ...................................................................................................... 68

BB.5
...