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1、BRITISH STANDARD BS EN
62271-202:2007
High-voltage switchgear and controlgear —
Part 202: High voltage/low voltage prefabricated substation
The European Standard EN 62271-202:2007 has the status of a
British Standar
2、d
ICS 29.130.10
BS EN 62271-202:2007
National foreword
This British Standard was published by BSI. It is the UK implementation of EN 62271-202:2007. It is identical with IEC 62271-2
3、02:2006. It supersedes BS EN 61330:1996, which will be withdrawn on 1 September 2009.
The UK participation in its preparation was entrusted by Technical Committee PEL/17, Switchgear, controlgear, and HV-LV co-ordination, to Subcommittee PEL/17/1, High-voltage switchgear and controlgear.
A lis
4、t of organizations represented on PEL/17/1 can be obtained on request to its secretary.
This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
Compliance with a British Standard cannot confer immunity from
5、legal obligations.
Amd. No.
Date
Comments
This British Standard was published under the authority of the Standards Policy and Strategy Committee
on 30 March 2007
? BSI 2007
6、ISBN 978 0 580 50436 5
Amendments issued since publication
EUROPEAN STANDARD EN 62271-202
NORME EUROPéENNE
EUROP?ISCHE NORM February 2007
ICS 29.130.10 Supersedes EN 61330:1996
English version
High-voltage switchgear and controlgear -
Part 202: High voltage/low voltage pr
7、efabricated substation
(IEC 62271-202:2006)
Appareillage à haute tension - Partie 202: Postes préfabriqués haute tension/basse tension (CEI 62271-202:2006)
Hochspannungs-Schaltger?te und -Schaltanlagen -
Teil 202: Fabrikfertige Stationen
für Hochspannung/Niederspannung
(IEC 62271-202:
8、2006)
This European Standard was approved by CENELEC on 2006-09-01. 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 lis
9、ts 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 translat
10、ion 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, F
11、inland, 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 St
12、andardization Comité Européen de Normalisation Electrotechnique Europ?isches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
? 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Re
13、f. No. EN 62271-202:2007 E
EN 62271-202:2007
Foreword
The text of document 17C/371/FDIS, future edition 1 of IEC 62271-202, prepared by SC 17C, High-voltage switchgear and controlgear assemblies, of IEC TC 17, Switchgear and controlgear, was submitted to the IEC-CENELEC parallel
14、 vote and was approved by CENELEC as EN 62271-202 on
2006-09-01.
This European Standard supersedes EN 61330:1996. 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) 200
15、7-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-09-01
Annexes ZA and ZB have been added by CENELEC.
Endorsement notice
The text of the International Standard IEC 62271-202:2006 was approved by CENELEC as a European
Sta
16、ndard without any modification.
CONTENTS
INTRODUCTION...................................................................................................................6
1 General .........................................................................................................
17、.................7
1.1 Scope....................................................................................................................7
1.2 Normative references ............................................................................................7
1.3 Terms and definitions ....
18、........................................................................................9
2 Service conditions ........................................................................................................ 10
2.1 Normal service conditions ...............................................
19、..................................... 10
2.2 Special service conditions.................................................................................... 11
3 Requirements for components ...................................................................................... 12
4 Ratings ......
20、.................................................................................................................. 12
4.1 Rated voltages .................................................................................................... 13
4.2 Rated insulation levels ...........................
21、.............................................................. 13
4.3 Rated frequency and number of phases ............................................................... 13
4.4 Rated normal currents and temperature rise ......................................................... 13
4.5 Rated short
22、-time withstand currents ..................................................................... 14
4.6 Rated peak withstand currents ............................................................................. 14
4.7 Rated duration of short circuit .................................................
23、............................. 14
4.8 Rated supply voltage of closing and opening devices and auxiliary and
control circuits ..................................................................................................... 14
4.9 Rated supply frequency of closing and opening devices and auxili
24、ary and
control circuits ..................................................................................................... 14
4.10 Rated maximum power and class of enclosure ..................................................... 14
4.10.1 Rated maximum power of the prefabricated substation..
25、............................ 14
4.10.2 Rated class of enclosure .......................................................................... 15
5 Design and construction ............................................................................................... 15
5.1 Earthing ..............
26、................................................................................................ 15
5.2 Auxiliary equipment ............................................................................................. 16
5.3 Nameplate ...............................................................
27、............................................ 16
5.4 Degree of protection and internal fault.................................................................. 16
5.5 Enclosure ............................................................................................................ 18
5.6 Other
28、provisions .................................................................................................. 21
5.7 Sound emission ................................................................................................... 21
5.8 Electromagnetic compatibility (EMC) .......................
29、............................................. 21
6 Type tests .................................................................................................................... 21
6.1 General ......................................................................................................
30、......... 21
6.2 Dielectric tests..................................................................................................... 22
6.3 Temperature-rise tests ......................................................................................... 25
6.4 Short-time and peak withstand curre
31、nt tests on main and earthing circuits ............ 28
6.5 Functional tests ................................................................................................... 28
6.6 Verification of the degree of protection ................................................................. 28
6.7
32、Calculations and mechanical tests ....................................................................... 28
6.8 Internal arcing test ............................................................................................... 29
6.9 Electromagnetic compatibility test (EMC) ....................
33、......................................... 29
7 Routine tests ................................................................................................................ 29
7.1 Dielectric test on the HV interconnection .............................................................. 30
7.2
34、Voltage withstand tests on auxiliary circuits .......................................................... 30
7.3 Functional tests ................................................................................................... 30
7.4 Verification of correct wiring ...............................
35、.................................................. 30
7.5 Tests after assembly on site ................................................................................ 30
8 Guide to the selection of prefabricated substations for service ....................................... 30
8.1 Selection o
36、f rated values ..................................................................................... 30
8.2 Selection of class of enclosure ............................................................................. 31
8.3 Selection of internal arc classification ................................
37、.................................. 31
8.4 Information .......................................................................................................... 34
9 Information to be given with enquiries, tenders and orders ............................................ 38
Information with e
38、nquiries and orders ................................................................... 38
10
Rules
Information with tenders ...................................................................................... 39 for transport, installation, operation, maintenance and end-of-service life
39、 ............ 40
10.1
Conditions during transport, storage and installation............................................. 40
10.2
Installation........................................................................................................... 40
10.3
Operation .....................
40、....................................................................................... 41
10.4
Maintenance ........................................................................................................ 41
10.5
Dismantling, recycling and disposal at the end-of-service life ........
41、........................ 41
11 Safety ..........................................................................................................................41
11.1 Electrical aspects ................................................................................................ 42
11.2
42、Mechanical aspects ............................................................................................. 42
11.3 Thermal aspects .................................................................................................. 42
11.4 Internal arc aspects................................
43、............................................................. 42
Annex A (normative) Method for testing the prefabricated substation under conditions
of arcing due to an internal fault .......................................................................................... 44
Annex B (normat
44、ive) Test to verify the sound level of a prefabricated substation ................. 57
Annex C (normative) Mechanical impact test ..................................................................... 59
Annex D (informative) Rating of transformers in an enclosure .........................
45、................... 61
Annex E (informative) Examples of earthing circuits............................................................ 64
Annex F (informative) Characteristics of enclosure materials .............................................. 67
Annex ZA (normative) Normative referenc
46、es to international publications with their
corresponding European publications.................................................................................. 70
Annex ZB (informative) A-deviations...................................................................................72
Bibliogr
47、aphy ....................................................................................................................... 69
Figure 1 – Measurement of transformer temperature rise in ambient air: ?t1
(refer to 6.3) .............................................................................
48、......................................... 42
Figure 2 – Measurement of transformer temperature rise in an enclosure: ?t2
(refer to 6.3) ...................................................................................................................... 43
Figure 3 – Diagram of the temperature-
49、rise test (refer to 6.3.2) ............................................ 43
Figure A.1 – Mounting frame for vertical indicators .............................................................. 51
Figure A.2 – Horizontal indicators ..................................................................
50、..................... 51
Figure A.3 – Arrangement of indicators ............................................................................... 52
Figure A.4 – Selection of tests on HV switchgear for class IAC-A ......................................... 53
Figure A.5 – Selection of test
51、s on HV switchgear for class IAC-B ......................................... 54
Figure A.6 – Selection of tests on HV interconnections for class IAC-A ................................ 55
Figure A.7 – Selection of tests on HV interconnections for class IAC-B ................................ 56
52、
Figure C.1 – Impact test apparatus...................................................................................... 60
Figure D.1 – Liquid-filled transformer load factor in an enclosure ......................................... 61
Figure D.2 – Dry-type transformer load factor in an enclo
53、sure .............................................. 62
Figure E.1 – Example of earthing circuits ............................................................................ 64
Figure E.2 – Example of earthing circuits ...........................................................................
54、. 65
Figure E.3 – Example within the framework serving as the main earthing conductor ............. 66
Table 1 – Synthetic material characteristics ......................................................................... 19
Table 2 – Locations, causes and examples of measures decreasing
55、 the probability of
internal arcs ....................................................................................................................... 32
Table 3 – Examples of measures limiting the consequences of internal arcs......................... 33
Table 4 – Summary of technical requ
56、irements and ratings for prefabricated
substations ....................................................................................................................... 34
INTRODUCTION
Prefabricated substations are defined as a type-tested assembly comprising an enclosure containing
57、transformers, low-voltage and high-voltage switchgear, connections and auxiliary equipment to supply low-voltage energy from a high-voltage system or vice versa. These substations are in locations accessible to the public and should ensure protection to persons according to the specified service con
58、ditions.
This means that, in addition to the specified characteristics, ratings and relevant test procedures, particular attention has been paid to the specification concerning the protection of persons, both operators and general public. Use of type-tested components and suitable des
59、ign and construction of the enclosure ensure this protection. The correct design and performance of the prefabricated substation are verified by means of relevant type tests described in this standard, including internal arc tests.
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 202: High-vol
60、tage/low-voltage prefabricated substation
1 General
1.1 Scope
This part of IEC 62271 specifies the service conditions, rated characteristics, general structural requirements and test methods of HV/LV or LV/HV prefabricated substations, which are cable-connected, to be op
61、erated from inside (walk-in type) or outside (non-walk-in type) for alternating current of rated voltages above 1 kV and up to and including 52 kV on the HV side, and for one or more transformers for service frequencies up to and including 60 Hz for outdoor installation in locations with public acce
62、ssibility.
Prefabricated substations can be situated at ground level or partially or completely below ground level.
In general, a prefabricated substation comprises the following main components (functions):
– enclosure;
– power transformers;
– HV and LV switchgear and c
63、ontrolgear;
– HV and LV interconnections;
– auxiliary equipment and circuits.
However, relevant provisions of this standard are applicable to designs where not all these components exist (for example, an installation consisting of power transformer and LV switchgear).
NOTE Non-prefabri
64、cated substations should comply with the applicable requirements of IEC 61936-1.
1.2 Normative references
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 editio
65、n of the referenced document (including any amendments) applies.
IEC 60076 (all parts), Power transformers
IEC 60076-1, Power transformers – Part 1: General
IEC 60076-2, Power transformers – Part 2: Temperature rise
IEC 60076-5, Power transformers – Part 5: Ability to withstand short
66、 circuit
IEC 60076-10, Power transformers – Part 10: Determination of sound levels
IEC 60076-11, Power transformers – Part 11: Dry-type power transformers
IEC 60364-4-41, Electrical installations of buildings – Part 4-41: Protection for safety – Protection against electric shock
IEC 60439-1, Low-voltage switchgear and controlgear assemblies – Part 1: Type-tested and partially type-tested assemblies
IEC 60466, AC insulation-enclosed switchgear and controlgear for r
bs英國標(biāo)準(zhǔn)】bs en 62271202 highvoltage switchgear and controlgear. high voltage low voltage prefabricated substation
