EN IEC 62271-100:2021/A1:2024

SLOVENSKI STANDARD
SIST EN IEC 62271-100:2021/oprA1:2023
01-oktober-2023
Visokonapetostne stikalne in krmilne naprave - 100. del: Odklopniki za izmenični
tok - Dopolnilo A1
Amendment 1 - High-voltage switchgear and controlgear - Part 100: Alternating-current
circuit-breakers
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 100: Wechselstrom-
Leistungsschalter
Amendement 1 - Appareillage à haute tension - Partie 100: Disjoncteurs à courant
alternatif
Ta slovenski standard je istoveten z: EN IEC 62271-100:2021/prA1:2023
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
SIST EN IEC 62271- en
100:2021/oprA1:2023
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN IEC 62271-100:2021/oprA1:2023

SIST EN IEC 62271-100:2021/oprA1:2023
17A/1387/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62271-100/AMD1 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-09-01 2023-11-24
SUPERSEDES DOCUMENTS:
17A/1375/CD, 17A/1381/CC
IEC SC 17A : SWITCHING DEVICES
SECRETARIAT: SECRETARY:
Sweden Mr Arjan Bronsveld
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 17C,SC 32A
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Amendment 1 - High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-
breakers
PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
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SIST EN IEC 62271-100:2021/oprA1:2023
IEC CDV 62271-100 A1 © IEC 2023 2 17A/1387/CDV

1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
6 Part 100: Alternating current circuit-breakers
8 AMENDMENT 1
10 FOREWORD
11 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
12 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote in ternational
13 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
14 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
15 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
16 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
17 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
18 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
19 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
20 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
21 consensus of opinion on the relevant subjects since each technical committee has representation from all
22 interested IEC National Committees.
23 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
24 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
25 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
26 misinterpretation by any end user.
27 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
28 transparently to the maximum extent possible in their national and regional publications. Any divergence between
29 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
30 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
31 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
32 services carried out by independent certification bodies.
33 6) All users should ensure that they have the latest edition of this publication.
34 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
35 members of its technical committees and IEC National Committees for any personal injury, property damage or
36 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
37 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
38 Publications.
39 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
40 indispensable for the correct application of this publication.
41 9) Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
42 rights. IEC shall not be held responsible for identifying any or all such patent rights.
43 Amendment 1 to IEC 62271-100:2021 has been prepared by subcommittee SC 17A, Switching
44 devices of IEC technical committee 17: High-voltage switchgear and controlgear.
45 The text of this Amendment is based on the following documents:
Draft Report on voting
17A/XX/FDIS 17A/XX/RVD
47 Full information on the voting for its approval can be found in the report on voting indicated in
48 the above table.
49 The language used for the development of this Amendment is English.
50 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
51 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
52 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
53 described in greater detail at www.iec.ch/publications/.

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54 The committee has decided that the contents of this document will remain unchanged until the
55 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
56 specific document. At this date, the document will be
57 • reconfirmed,
58 • withdrawn,
59 • replaced by a revised edition, or
60 • amended.
62 EXPLANATORY NOTE (not part of the amendment)
63 IEC 62271-100:2021 there is a slight difference for the calculation of u for T10 in Tables 20
c
64 and 21. The u value for T10 must be the same for k 1,3 and k 1,5 because both conditions
c pp pp
65 also cover transformer limited faults. For voltage ratings higher than 170 kV u also covers
c
66 cases of 3-phase line faults with effectively earthed neutral systems. See also the notes in
67 Tables 20 and 21. By increasing the k from 1,76 to 1,765 the u values are practically the

af c
68 same again for k 1,3 and k 1,5.
pp pp
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72 3.5.130
73 alternative operating mechanism
74 Change the definition as follows.
75 operating mechanism where a change in the power kinematic chain of the original operating
76 mechanism or the use of a partly or entirely different operating mechanism leads to the same
77 mechanical characteristics.
78 Note 1 to entry: An alternative operating mechanism can utilise an operating principle different from the original
79 one (for example the alternative mechanism can be spring-operated and the original hydraulic).
82 3.7.112
83 terminal fault
84 Replace the definition by the following.
85 short-circuit on at least one of the terminals of the circuit-breaker
86 Note 1 to entry: The terminal fault current has contributions from the source side only .
89 5.104 Rated operating sequence
90 Replace the text in 5.104 by the following.
91 The rated operating sequence is O – t – CO – t' – CO, where
92 O represents an opening operation;
93 CO represents a close-open operating cycle with the shortest possible close-open time such
94 that the circuit-breaker reaches the fully closed and latched position prior to opening
95 The time parameters are as follows:
a) a)
96 – Circuit-breaker for auto-reclosing: t = 3 min and t'= 3 min ;

a)
97 – Circuit-breaker for rapid auto-reclosing: t = 0,3 s and t' = 3 min ;
b) b)
98 – Circuit-breaker not for auto-reclosing: t > 3 min and t' > 3 min .
a)
99 Alternative values may be used, for example 15 s or 1 min.
b)
100 To be specified by the manufacturer.
103 5.106.1 Rated capacitive currents
104 Replace Table 1 by the following.

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105 Table 1 – Preferred values of rated capacitive currents
Single
Line Cable capacitor Back-to-back capacitor bank
bank
Rated Rated line- Rated cable- Rated single Rated back- Rated back-to-
voltage charging charging capacitor to-back back capacitor
breaking breaking bank capacitor bank inrush
current current breaking bank making current
current breaking
current
U I I I
r l c bi
I I
sb bb
kV A A A A kA
3,6 10 10 400 400 20
4,76 10 10 400 400 20
7,2 10 10 400 400 20
8,25 10 10 400 400 20
12 10 25 400 400 20
15 10 25 400 400 20
15,5 10 25 400 400 20
17,5 10 31,5 400 400 20
24 10 31,5 400 400 20
25,8 10 31,5 400 400 20
27 10 31,5 400 400 20
36 10 50 400 400 20
38 10 50 400 400 20
40,5 10 50 400 400 20
48,3 10 80 400 400 20
52 10 80 400 400 20
72,5 10 125 400 400 20
100 20 125 400 400 20
123 31,5 140 400 400 20
145 50 160 400 400 20
170 63 160 400 400 20
245 125 250 400 400 20
300 200 315 400 400 20
362 315 355 400 400 20
420 400 400 400 400 20
550 500 500 400 400 20
800 900 - - - -
1 100 1 200 - - - -
1 200 1 300 - - - -
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Single
Line Cable capacitor Back-to-back capacitor bank
bank
NOTE 1 The values given in this table are chosen for standardisation purposes. They are preferred
values and cover the majority of typical applications. If different values are needed, any appropriate
value can be specified as rated value.
NOTE 2 For actual cases, the inrush currents can be calculated based on IEC TR 62271-306 [4].
NOTE 3 The peak of the inrush current can be higher or lower than the preferred values stated in
this table depending on system conditions, for example whether or not current limiting reactors are
used.
NOTE 4 Preferred values for rated voltages 1 100 kV and 1 200 kV are based on applications at
50 Hz. Higher values of current could be possible in the future in systems operated at 60 Hz,
however experience shows that these higher currents would not lead to a higher stress for the circuit-
breaker as the recovery voltage is generally the dominant factor for breaking.
108 7.2.5 Criteria to pass the test
109 Replace the text by the following.
110 Subclause 7.2.5 of IEC 62271-1:2017 is applicable with the following addition.
111 If disruptive discharges occur and evidence cannot be given during testing that the disruptive
112 discharges were on self-restoring insulation, the circuit-breaker shall be dismantled and
113 inspected after the completion of the dielectric test series. If damage (for example tracking,
114 puncture, etc.) to non-self-restoring insulation is observed, the circuit-breaker has failed the
115 test.
116 For metal-enclosed circuit-breakers tested with test bushings that are not part of the circuit-
117 breaker, disruptive discharges across the test bushings can be disregarded.
119 7.2.10 Partial discharge tests
120 Replace the text by the following.
121 Subclause 7.2.10 of IEC 62271-1 is applicable with the following addition.
122 This test is only applicable to GIS and dead-tank circuit-breakers.
123 Partial discharge tests are normally not required to be performed on the complete circuit-
124 breaker. However, in case of dead-tank and GIS circuit-breakers using components for which
125 a relevant IEC standard exists, that requires partial discharge measurements (for example,
126 bushings, see IEC 60137:2017 [8]), evidence shall be provided by the manufacturer showing
127 that those components have passed the partial discharge tests as required by the relevant IEC
128 standard.
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132 7.2.12.101 Condition after mechanical or environmental test
133 Replace the text by the following.
134 Where after mechanical or environmental tests (see 7.101.1.4) the insulating properties across
135 open contacts of a circuit-breaker cannot be verified by visual inspection with sufficient
136 reliability, a voltage test as condition check in dry condition across the open circuit-breaker
137 according to 7.2.12 of IEC 62271-1:2017 or 7.2.12.103 of this document shall be applied. For
138 metal enclosed circuit-breakers test conditions refer to Table 7. F
...