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BS EN IEC 62271-102:2018+A1:2022

BS EN IEC 62271-102:2018+A1:2022

$215.11

High-voltage switchgear and controlgear – Alternating current disconnectors and earthing switches

Published By Publication Date Number of Pages
BSI 2022 118
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PDF Catalog

PDF Pages PDF Title
2 undefined
7 Blank Page
10 Blank Page
11 English
CONTENTS
18 FOREWORD
21 1 Scope
2 Normative references
22 3 Terms and definitions
3.1 General terms and definitions
23 3.2 Assemblies of switchgear and controlgear
3.3 Parts of assemblies
3.4 Switching devices
24 3.5 Parts of switching devices
27 3.6 Operation
28 3.7 Characteristic quantities
33 3.8 Index of definitions
35 4 Normal and special service conditions
5 Ratings
5.1 General
36 5.2 Rated voltage (Ur)
5.3 Rated insulation level (Ud, Up, Us)
5.4 Rated frequency (fr)
5.5 Rated continuous current (Ir)
5.6 Rated short-time withstand current (Ik)
5.7 Rated peak withstand current (Ip)
37 5.8 Rated duration of short-circuit (tk)
5.10 Rated supply frequency of auxiliary circuits and control circuits
5.11 Rated pressure of compressed gas supply for controlled pressure systems
5.11.101 Rated pressure of compressed gas supply for insulation and/or switching
5.11.102 Rated pressure of compressed gas supply for operation
5.101 Rated short-circuit making current (Ima)
5.102 Classification of earthing switches for short-circuit making
Tables
Table 1 – Classification of earthing switches for short-circuit making
38 5.103 Rated contact zone
5.104 Rated static mechanical terminal load
Table 2 – Preferred contact zones for "fixed" contacts supported by flexible conductors
Table 3 – Preferred contact zones for "fixed" contactssupported by rigid conductors
39 5.105 Classification of disconnectors for mechanical endurance
Table 4 – Preferred static mechanical terminal loads
40 5.106 Classification of earthing switches for mechanical endurance
5.107 Rated ice-coating
5.108 Rated values of disconnectors for bus-transfer current switching
5.108.1 Rated bus-transfer current
Table 5 – Classification of disconnectors for mechanical endurance
Table 6 – Classification of earthing switches for mechanical endurance
41 5.108.2 Rated bus-transfer voltage
5.109 Classification and rated values of earthing switches for induced current switching
Table 7 – Rated bus-transfer voltages of disconnectors
Table 8 – Classification of earthing switches for induced-current switching
42 5.110 Classification and rated values of disconnectors for bus-charging current switching
Table 9 – Rated induced currents and voltages
43 6 Design and construction
6.1 Requirements for liquids in disconnectors and earthing switches
6.2 Requirements for gases in disconnectors and earthing switches
6.3 Earthing of disconnectors and earthing switches
Table 10 – Classification of disconnectors for bus-charging switching
Table 11 – Standard rated bus-charging currents
44 6.4 Auxiliary and control equipment and circuits
6.5 Dependent power operation
6.6 Stored energy operation
6.7 Independent unlatched operation (independent manual or power operation)
6.8 Manually operated actuators
6.9 Operation of releases
6.10 Pressure/level indication
6.11 Nameplates
45 Table 12 – Product information (1 of 2)
47 6.12 Locking devices
6.13 Position indication
6.14 Degree of protection provided by enclosures
6.15 Creepage distances for outdoor insulators
6.16 Gas and vacuum tightness
6.17 Tightness for liquid systems
6.18 Fire hazard (flammability)
6.19 Electromagnetic compatibility (EMC)
6.20 X-ray emission
6.21 Corrosion
48 6.22 Filling levels for insulation, switching and/or operation
6.101 Particular requirements for earthing switches
6.102 Requirements in respect of the isolating distance of disconnectors
6.103 Mechanical strength
49 6.104 Operation of disconnectors and earthing switches – Position of the movable contact system and its indicating and signalling devices
6.104.1 Securing of position
6.104.2 Additional requirements for power-operated mechanisms
6.104.3 Indication and signalling of position
Figures
Figure 1 – Position indicating/signalling device(s)
50 6.105 Maximum force required for manual (dependent or independent) operation
6.105.1 General
51 6.105.2 Operation requiring more than one revolution
6.105.3 Operation requiring up to one revolution
6.106 Dimensional tolerances
6.107 Earthing switches with short-circuit making current capability
7 Type tests
7.1 General
7.1.1 Basics
52 Table 13 – List of type tests
53 7.1.2 Information for identification of test objects
7.1.3 Information to be included in type test reports
7.2 Dielectric tests
7.2.1 General
7.2.2 Ambient air conditions during tests
7.2.3 Wet test procedure
7.2.4 Arrangement of the equipment
54 7.2.5 Criteria to pass the test
7.2.6 Application of the test voltage and test conditions
7.2.7 Tests of disconnectors and earthing switches of Ur ( 245 kV
7.2.8 Test of disconnectors and earthing switches of Ur > 245 kV
7.2.9 Artificial pollution tests for outdoor insulators
Table 14 – Power frequency withstand voltages
55 7.2.10 Partial discharge tests
7.2.11 Dielectric tests on auxiliary and control circuits
7.2.12 Voltage test as condition check
7.3 Radio interference voltage (RIV) test
7.4 Resistance measurement
7.5 Continuous current tests
7.6 Short-time withstand current and peak withstand current tests
7.6.1 General
7.6.2 Arrangement of the disconnectors and earthing switches and of the test circuit
57 Figure 2 – Three-phase test arrangement for disconnectorsand earthing switches
58 Figure 3 – Single-phase test arrangement for disconnectors with a horizontal isolating distance and for earthing switches of Ur > 52 kV, to be used with flexible or with rigid conductors
59 Figure 4 – Single-phase test arrangement for divided support disconnectors (earthing switches) of Ur > 52 kV with a vertical isolating distance, to be used with flexible conductors
60 Figure 5 – Single-phase test arrangement for divided support disconnectors (earthing switches) of Ur > 52 kV with a vertical isolating distance, to be used with rigid conductors
61 7.6.3 Test current and duration
7.6.4 Conditions of disconnectors and earthing switches after test
62 7.7 Verification of the protection
7.8 Tightness tests
7.9 Electromagnetic compatibility tests (EMC)
7.10 Additional tests on auxiliary and control circuits
7.11 X-ray radiation test for vacuum interrupters
63 7.101 Test to prove the short-circuit making performance of earthing switches
7.101.1 General test conditions
7.101.2 Arrangement of the earthing switch for tests
7.101.3 Test frequency
7.101.4 Test voltage
64 7.101.5 Test short-circuit making current
7.101.6 Test circuits
7.101.7 Test procedures
65 7.101.8 Behaviour of earthing switches when making short-circuit currents
7.101.9 Condition of earthing switch after short-circuit making tests
Table 15 – Requirements on the instant of making
66 7.101.10 Invalid tests
7.101.11 Type test reports
Table 16 – Invalid tests
67 7.102 Operating and mechanical endurance tests
7.102.1 General test conditions
7.102.2 Contact zone test
68 Figure 6 – Fixed contact parallel to support
69 Figure 7 – Fixed contact perpendicular to support
70 7.102.3 Mechanical endurance test
Figure 8 – Example of the application of rated static mechanical terminal loadsto a (divided support) pantograph disconnector (or earthing switch)
71 Figure 9 – Example of the application of rated static mechanical terminal loads to a two-column disconnector
72 7.102.4 Operation during the application of rated static mechanical terminal loads
73 7.102.5 Extended mechanical endurance tests
74 7.102.6 Testing of mechanical interlocking devices.
7.103 Operation under severe ice conditions
7.103.1 General
7.103.2 Test arrangement
75 7.103.3 Test procedure
76 7.104 Low- and high-temperature tests
7.104.1 General
77 7.104.2 Measurement of ambient air temperature
7.104.3 Low-temperature test
Figure 10 – Test sequences for low and high temperature tests
79 7.104.4 High-temperature test
7.105 Tests to verify the proper functioning of the position-indicating device
7.105.1 General
80 7.105.2 Tests on the power kinematic chain and the position-indicating kinematic chain
7.106 Bus-transfer current switching tests on disconnectors
7.106.1 General
7.106.2 Making and breaking tests
82 Figure 11 – Example of test circuit for bus-transfer current switching tests
84 7.107 Induced current switching tests on earthing switches
7.107.1 General
7.107.2 Arrangement of the earthing switch for tests
85 7.107.3 Earthing of test circuit and earthing switch
7.107.4 Test frequency
7.107.5 Test voltage
7.107.6 Test currents
7.107.7 Test circuits
86 Figure 12 – Test circuit for electromagnetically induced current switching tests
87 Table 17 – Standard values of recovery voltages for electromagneticallyinduced current breaking tests
88 Figure 13 – Test circuits for electrostatically induced current-switching tests
89 Table 18 – Test circuit capacitances (C1 values) for electrostaticallyinduced current switching tests
90 7.108 Bus-charging current switching tests on disconnectors
7.108.1 General
91 7.108.2 Test duties
7.108.3 Arrangement of the disconnector for tests
7.108.4 Test frequency
92 7.108.5 Test voltages for making and breaking tests
Figure 14 – Test circuit for test duty 1
Table 19 – Test voltages for making and breaking tests
93 7.108.6 Test circuits for making and breaking tests
94 Figure 15 – Typical voltage waveform (Including VFT and FT components)
Figure 16 – Test circuit for test duty 2
95 7.108.7 Performance of making and breaking tests
7.108.8 Behaviour of the disconnector during making and breaking tests
Figure 17 – Test circuit for test duty 3
Table 20 – Number of tests
96 7.108.9 Condition after test
7.108.10 Type test reports
97 7.108.11 Requirements for UTVE measurements
8 Routine tests
8.1 General
8.2 Dielectric test on the main circuit
98 8.3 Tests on auxiliary and control circuits
8.4 Measurement of the resistance of the main circuit
8.5 Tightness test
8.6 Design and visual checks
8.101 Mechanical operating tests
Table 21 – Power frequency voltage tests
99 8.102 Verification of earthing function
9 Guide to the selection of disconnectors and earthing switches (informative)
9.1 General
100 9.2 Selection of rated values
9.2.101 General
9.2.102 Selection of rated voltage and rated insulation level
9.2.103 Selection of rated continuous current
9.2.104 Selection of rated contact zone
101 9.2.105 Selection of rated static mechanical terminal load
9.2.106 Selection of a bus-transfer current switching capability for disconnectors of Ur > 52 kV
9.2.107 Selection of an induced-current switching capability for earthing switches of Ur > 52 kV
9.2.108 Selection of rated short-time withstand current and of rated duration of short-circuit
102 9.2.109 Selection of rated peak withstand current and of rated short-circuit making current for earthing switches
9.2.110 Selection of short-circuit making capability for earthing switches
9.3 Cable-interface considerations
9.4 Continuous or temporary overload due to changed service conditions
9.5 Environmental aspects
9.5.101 Local environmental conditions
103 10 Information to be given with enquiries, tenders and orders (informative)
10.1 General
10.2 Information with enquiries and orders
104 10.3 Information with tenders
105 11 Transport, storage, installation, operating instructions, and maintenance
11.1 General
11.2 Conditions during transport, storage and installation
11.3 Installation
106 11.4 Operation
11.5 Maintenance
12 Safety
12.1 General
12.2 Precautions by manufacturers
12.3 Precautions by users
13 Influence of the product on the environment
107 Annexes
Annex A (informative) Test voltage for the most disadvantageous dielectric position of an earthing switch during operation (minimum temporary clearance)
108 Annex B (informative) Current-switching capability required of disconnectors and earthing switches
B.1 Bus-transfer current switching capability of disconnectors
B.2 Bus-charging current switching capability of disconnectors
Table B.1 – Average impedances
109 B.3 Induced current-switching capability of earthing switches
Figure B.1 – Examples of resistor-fitted disconnectors
110 Annex C (normative) Tolerances on test quantities for type tests
Table C.1 – Tolerances on test quantities for type tests (1 of 2)
112 Annex D (normative) Alternative test methods for short-circuit current making tests
D.1 General
D.2 Alternative methods
D.2.1 Synthetic test method with both rated voltage and rated short-circuit current
D.2.2 Test methods with reduced voltage
114 Annex E (informative) Extension of validity of type tests
E.1 General
E.2 Dielectric tests
E.3 Short-time withstand current tests
E.4 Short-circuit making performance of earthing switches
E.5 Operating and mechanical endurance tests
E.6 Bus-transfer current switching tests on disconnectors
115 E.7 Induced current switching tests on earthing switches
116 Bibliography

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BS EN IEC 62271-102:2018+A1:2022
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