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BS EN 62271-104:2015 – TC:2020 Edition

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Tracked Changes. High-voltage switchgear and controlgear – Alternating current switches for rated voltages higher than 52 kV

Published By Publication Date Number of Pages
BSI 2020 119
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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 /2, /2, /2 and /2.

PDF Catalog

PDF Pages PDF Title
71 English

CONTENTS
75 1 General
1.1 Scope
76 1.2 Normative references
2 Normal and special service conditions
3 Terms and definitions
3.1 General terms
3.2 Assemblies
3.3 Parts of assemblies
77 3.4 Switching devices
78 3.6 Operation
3.7 Characteristic quantities
80 4 Ratings

4.1 Rated voltage (Ur)
4.2 Rated insulation level
4.3 Rated frequency (fr)
4.4 Rated normal current and temperature rise (Ir)
4.5 Rated short-time withstand current (Ik)
4.6 Rated peak withstand current (Ip)
4.7 Rated duration of short-circuit (tk)
4.8 Rated supply voltage of closing and opening devices and of auxiliary and control circuits (Ua)
4.9 Rated supply frequency of closing and opening devices and of auxiliary circuits
81 4.10 Rated pressure of compressed gas supply for controlled pressure systems
4.11 Rated filling levels for insulation and/or operation
4.101 Rated earth fault breaking current
4.102 Rated short-circuit making current
4.103 Rated mainly active load-breaking current
4.104 Rated closed-loop breaking current
4.105 Rated capacitive switching currents
4.105.1 Rated line-charging breaking current
4.105.2 Rated cable-charging breaking current
4.105.3 Rated single capacitor bank breaking current
4.105.4 Rated back-to-back capacitor bank breaking current
82 4.105.5 Single capacitor bank inrush making current
4.105.6 Rated back-to-back capacitor bank inrush making current
4.105.7 Rated cable and line-charging breaking current under earth fault conditions
4.106 Inductive load switching
4.106.1 Shunt reactor breaking current
4.106.2 Rated no-load transformer breaking current
4.107 Rated mechanical terminal load
4.108 Coordination of rated values for a general-purpose switch
83 4.109 Coordination of rated values for limited-purpose and special-purpose switches
5 Design and construction
5.1 Requirements for liquids in high-voltage switches
5.2 Requirements for gases in high-voltage switches
Tables

Table 1 – Preferred values of line- and cable-charging breaking currents for a general-purpose switch
84 5.3 Earthing of high-voltage switches
5.4 Auxiliary and control equipment
5.5 Dependent power operation
5.6 Stored energy operation
5.7 Independent manual or power operation (independent unlatched operation)
5.8 Operation of releases
5.9 Low- and high-pressure interlocking and monitoring devices
5.10 Nameplates
85 5.11 Interlocking devices
Table 2 – Nameplate information
86 5.12 Position indication
5.13 Degree of protection provided by enclosures
5.14 Creepage distances for outdoor insulators
5.15 Gas and vacuum tightness
5.16 Liquid tightness
5.17 Fire hazard (flammability)
5.18 Electromagnetic compatibility (EMC)
5.19 X-ray emission
5.20 Corrosion
5.101 Closing mechanism
5.102 Mechanical strength
5.103 Position of the movable contact system and its indicating or signalling device
5.103.1 Securing the position
87 5.103.2 Indication of position
5.103.3 Auxiliary contacts for signalling
6 Type tests
6.1 General
88 6.2 Dielectric tests
Table 3 – Type tests
89 6.3 Radio interference voltage (r.i.v.) tests
6.4 Measurement of the resistance of circuits
6.5 Temperature rise tests
6.6 Short-time withstand current and peak withstand current tests
6.7 Verification of the protection
6.8 Tightness tests
6.9 Electromagnetic compatibility tests (EMC)
6.10 Additional tests on auxiliary and control circuits
6.11 X-radiation test procedure for vacuum interrupters
6.101 Mechanical operation tests
6.101.1 Arrangement of the switch for tests
90 6.101.2 Tests for general-purpose switches
91 6.101.3 Tests for limited-purpose and special-purpose switches
6.101.4 Condition of switch during and after mechanical operation tests
6.101.5 Operation under severe ice conditions
6.101.6 Static terminal load tests
92 6.102 Miscellaneous provision for making and breaking tests
6.102.1 Arrangement of the switch for tests
93 6.102.2 Behaviour of switch during breaking tests
6.102.3 Condition of switch after breaking tests
6.102.4 Condition of switch during and after short-circuit making tests
94 6.103 Test circuits for making and breaking tests
6.103.1 General
6.103.2 Earthing of test circuit and switch
95 6.103.3 Mainly active load circuit (test duty 1 and test duty 3)
Figures

Figure 1 – Single-phase test circuit for mainly active load current switching for test duties 1 and 3
Figure 2 – Single-phase test circuit for transmission line closed loop and parallel-transformer current switching test, for test duties 2a and 2b
96 Figure 3 – Three-phase test circuit for mainly active load current switching, for test duties 1 and 3
97 Figure 4 – Supply and load side transient for mainly active loadcurrent switching tests (see Table 4)
Table 4 – Supply circuit TRV parameters for mainlyactive load current breaking tests
98 6.103.4 Closed-loop circuits (test duty 2)
Figure 5 – Three-phase test circuit for transmission line closed loop and parallel-transformer current switching test for test duties 2a and 2b
99 Table 5 – TRV parameters for transmission line closed loop current breaking tests
100 Figure 6 – Illustration of the transient associated with transmissionline closed loop current breaking tests (see Table 5)
Table 6 – Test duties for single-phase tests on three-pole switcheshaving a non-simultaneity between poles of 0,25 cycle or less
101 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
102 6.103.5 Test circuits for short-circuit making tests (test duty 6)
Table 8 – TRV parameters for parallel transformer current breaking tests
103 Figure 7 – Three-phase test circuit for short circuit making current test for test duty 6
Figure 8 – Single-phase test circuit for short circuit making current testfor test duty 6
104 6.103.6 Test circuits for breaking tests under earth fault conditions (test duties 7a and 7b)
6.104 Test quantities
6.104.1 Test frequency
6.104.2 Test voltage for breaking tests
Table 9 – Test duties for three-phase tests on three-pole switches
105 6.104.3 Breaking current
106 6.104.4 Test voltage for short-circuit making tests
107 6.104.5 Short-circuit making current
6.105 Capacitive current switching tests
6.105.1 Applicability
108 6.105.2 General
6.105.3 Characteristics of supply circuits
6.105.4 Earthing of the supply circuit
6.105.5 Characteristics of the capacitive circuit to be switched
6.105.6 Waveform of the current
6.105.7 Test voltage
109 6.105.8 Test current
6.105.9 Test duties
110 6.105.10 Tests with specified TRV
6.105.11 Criteria to pass the test
6.106 Inductive load switching (test duty 5)
6.106.1 No-load transformer circuit (test duty 5a)
6.106.2 Shunt-reactor current switching tests (test duty 5b)
111 6.107 Tests for general-purpose switches
112 6.108 Tests for limited-purpose switches
6.109 Tests for special-purpose switches
6.110 Type test reports
113 7 Routine tests
7.1 Dielectric tests on main circuit
7.2 Tests on auxiliary and control circuits
7.3 Measurement of the resistance of the main circuit
7.4 Tightness test
7.5 Design and visual checks
7.101 Mechanical operating tests
114 8 Guide to the selection of high-voltage switches
8.1 Selection of rated values
8.2 Continuous or temporary overload due to changed service conditions
8.101 General
8.102 Conditions affecting application
8.103 Insulation coordination
115 9 Information to be given with enquiries, tenders and orders
9.1 Information with enquiries and orders
9.2 Information with tenders
10 Transport, storage, installation, operation and maintenance
11 Safety
12 Influence of the high-voltage switch on the environment
116 Bibliography
BS EN 62271-104:2015 - TC
$258.95