IEC PAS 62271-109:2002

FOREWORD
1 General
   1.1 Scope
   1.2 Normative references
2 Normal and special service conditions
3 Definitions
   3.1 General terms
   3.2 Assemblies
   3.3 Parts of assemblies
   3.4 Switching devices
   3.5 Parts of by-pass switches
   3.6 Operation
   3.7 Characteristic quantities
   3.8 Definitions related to series capacitor banks
   3.9 Index of definitions
4 Ratings
   4.1 Rated voltage (U[r])
   4.2 Rated insulation level
   4.3 Rated frequency (f[r])
   4.4 Rated normal current (I[r]) and temperature rise
   4.5 Rated short-time withstand current (I[k])
   4.6 Rated peak withstand current (I[p])
   4.7 Rated duration of short circuit (t[k])
   4.8 Rated supply voltage of closing and opening devices
        and of auxiliary and control circuits (U[a])
   4.9 Rated supply frequency of closing and opening devices
        and auxiliary circuits
   4.10 Rated pressures of compressed gas supply for
        insulation, operation and/or by-passing and insertion
5 Design and construction
   5.1 Requirements for liquids in by-pass switches
   5.2 Requirements for gases in by-pass switches
   5.3 Earthing of by-pass switches
   5.4 Auxiliary equipment
   5.5 Dependent power operation
   5.6 Stored energy operation
   5.7 Independent manual operation
   5.8 Operation of releases
   5.9 Low- and high-pressure interlocking devices
   5.10 Nameplates
   5.11 Interlocking devices
   5.12 Position indication
   5.13 Degrees of protection by enclosures
   5.14 Creepage distances
   5.15 Gas and vacuum tightness
   5.16 Liquid tightness
   5.17 Flammability
   5.18 Electromagnetic compatibility
6 Type tests
   6.1 General
        6.1.1 Grouping of tests
        6.1.2 Information for identification of specimens
        6.1.3 Information to be included in type test reports
   6.2 Dielectric tests
        6.2.1 Ambient air conditions during tests
        6.2.2 Wet test procedure
        6.2.3 Condition of by-pass switch during dielectric
               tests
        6.2.4 Criteria to pass the test
        6.2.5 Application of test voltage and test conditions
        6.2.6 Tests of by-pass switches of U[re] <= 245 kV or
               U[rp] <= 245 kV
        6.2.7 Tests of by-pass switches of U[re] > 245 kV or
               U[rp] > 245 kV
        6.2.8 Artificial pollution tests
        6.2.9 Partial discharge tests
        6.2.10 Tests on auxiliary and control circuits
        6.2.11 Voltage test as a condition check
   6.3 Radio interference voltage (r.i.v.) tests
   6.4 Measurement of the resistance of the main circuit
   6.5 Temperature-rise tests
        6.5.1 Conditions of the by-pass switch to be tested
        6.5.2 Arrangement of the equipment
        6.5.3 Measurement of the temperature and the
               temperature rise
        6.5.4 Ambient air temperature
        6.5.5 Temperature-rise tests of the auxiliary and
               control equipment
        6.5.6 Interpretation of the temperature-rise tests
   6.6 Short-time withstand current and peak withstand current
        tests
        6.6.1 Arrangement of the by-pass switch and of the
               test circuit
        6.6.2 Test current and duration
        6.6.3 Behaviour of the by-pass switch during test
        6.6.4 Conditions of the by-pass switch after test
   6.7 Verification of the degree of protection
        6.7.1 Verification of the IP coding
        6.7.2 Mechanical impact test
   6.8 Tightness tests
   6.9 Electromagnetic compatibility (EMC) tests
7 Routine tests
   7.1 Dielectric test on the main circuit
   7.2 Dielectric test 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
8 Guide to the selection of by-pass switches for service
9 Information to be given with enquiries, tenders and orders
10 Rules for transport, storage, installation, operation and
   maintenance
   10.1 Conditions during transport, storage and installation
   10.2 Installation
   10.3 Operation
   10.4 Maintenance
11 Safety
Annex A (normative) Tolerances on test quantities during type
        tests
Annex B (normative) Records and reports of type tests
   B.1 Information and results to be recorded
   B.2 Information to be included in type test reports
        B.2.1 General
        B.2.2 Apparatus tested
        B.2.3 Rated characteristics of by-pass switch,
               including its operating devices and auxiliary
               equipment
        B.2.4 Test conditions (for each series of tests; if
               applicable)
        B.2.5 Short-time withstand current and peak withstand
               current test
        B.2.6 No-load operation
        B.2.7 By-pass making current test-duty
        B.2.8 Insertion current test-duty
        B.2.9 Oscillographic and other records
Annex C (informative) List of symbols and abbreviations used
Figures
Tables

Is applicable to a.c. series capacitor by-pass switches designed for outdoor installation and for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1 000 V.It is only applicable to by-pass switches for use in three-phase systems.This specification is also applicable to the operating devices of by-pass switches and to their auxiliary equipment.This specification does not cover vacuum by-pass switches.