IEC 62271-203:2011 specifies requirements for gas-insulated metal-enclosed switchgear in which the insulation is obtained, at least partly, by an insulating gas other than air at atmospheric pressure, for alternating current of rated voltages above 52 kV, for indoor and outdoor installation, and for service frequencies up to and including 60 Hz. This second edition of IEC 62271-203 cancels and replaces the first edition of IEC 62271-203, published in 2003, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – adopting the structure and the content to IEC 62271-1, – harmonisation with IEEE C37.122, – addition of the new Annex F and the new Annex G. This publication is to be read in conjunction with \/2. The contents of the corrigendum of July 2013 have been included in this copy.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 8<\/td>\n | English \n CONTENTS <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 General 1.1 Scope 1.2 Normative references <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 2 Normal and special service conditions 2.1 Normal service conditions 2.2 Special service conditions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 3 Terms and definitions Tables \n Table 1 \u2013 Reference table of service conditions relevant to GIS <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4 Ratings <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.1 Rated voltage (Ur) 4.2 Rated insulation level <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Table 2 \u2013 Rated insulation levels for rated voltages for equipment of range I Table 3 \u2013 Rated insulation levels for rated voltages for equipment of range II <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 4.3 Rated frequency (fr) 4.4 Rated normal current and temperature rise 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) <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 4.9 Rated supply frequency of closing and opening devices and of auxiliary circuits 4.10 Rated pressure of compressed gas supply for controlled pressure systems 4.11 Rated filling levels for insulation and\/or operation 5 Design and construction 5.1 Requirements for liquids in switchgear and controlgear 5.2 Requirements for gases in switchgear and controlgear 5.3 Earthing of switchgear and controlgear <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5.10 Nameplates 5.11 Interlocking devices 5.12 Position indication 5.13 Degrees of protection by enclosures 5.14 Creepage distances for outdoor insulators <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.15 Gas and vacuum tightness 5.16 Liquid tightness 5.17 Fire hazard (flammability) 5.18 Electromagnetic compatibility (EMC) <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 5.19 X-Ray emission 5.20 Corrosion 5.101 Pressure coordination Figures \n Figure 1 – Pressure coordination \n <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 5.102 Internal fault <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 5.103 Enclosures Table 4 \u2013 Performance criteria <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 5.104 Partitions <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 5.105 Pressure relief Figure 2 \u2013 Example of arrangement of enclosures and gas compartments <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 5.106 Noise 5.107 Interfaces <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 6 Type tests 6.1 General <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Table 5 \u2013 Example of grouping of type tests <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 6.2 Dielectric tests <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Table 6 \u2013 Test voltage for measuring PD intensity <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 6.3 Radio interference voltage (r.i.v.) test 6.4 Measurement of the resistance of circuits 6.5 Temperature-rise tests <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 6.6 Short-time withstand current and peak withstand current tests <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 6.7 Verification of the protection 6.8 Tightness tests <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 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 Verification of making and breaking capacities 6.102 Mechanical and environmental tests <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | 6.103 Proof tests for enclosures <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | 6.104 Pressure test on partitions 6.105 Test under conditions of arcing due to an internal fault <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | 6.106 Insulator tests 6.107 Corrosion test on earthing connections <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | 6.108 Corrosion tests on enclosures 7 Routine tests 7.1 Dielectric test on the main circuit <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | 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 Pressure tests of enclosures <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | 7.102 Mechanical operation tests 7.103 Tests on auxiliary circuits, equipment and interlocks in the control mechanism 7.104 Pressure test on partitions 8 Guide to the selection of switchgear and controlgear 8.1 Selection of rated values 8.2 Continuous or temporary overload due to changed service conditions <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | 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 10.1 Conditions during transport, storage and installation 10.2 Installation <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Table 7 \u2013 On site test voltages <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | 10.3 Operation <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | 10.4 Maintenance 11 Safety 12 Influence of the product on the environment <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Annex A (normative) \nTest procedure for dielectric teston three-phase encapsulated GIS, range II Table A.1 \u2013 Switching impulse test conditions above 245\u00a0kV <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | Annex B (normative) Methods for testing gas-insulated metal-enclosed switchgear \nunder conditions of arcing due to an internal fault <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | Annex C (informative) \nTechnical and practical considerations of site testing <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | Annex D (informative) \nCalculation of pressure rise due to an internal fault <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | Annex E (informative) \nInformation to be given with enquiries, tenders and orders Table E.1 \u2013 Normal and special service conditions <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | Table E.2 \u2013 Ratings <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | Table E.3 \u2013 Design and construction <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | Table E.4 \u2013 Bus ducts Table E.5 \u2013 Bushing <\/td>\n<\/tr>\n | ||||||
| 67<\/td>\n | Table E.6 \u2013 Cable connection Table E.7 \u2013 Transformer connection Table E.8 \u2013 Current transformer Table E.9 \u2013 Inductive voltage transformer <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | Table E.10 \u2013 Documentation for enquiries and tenders <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | Annex F (informative) \nService continuity <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | Figure F.1 \u2013 Impact due to the removal of common partitionbetween busbar-disconnector <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | Figure F.2 \u2013 Impact of GIS partitioning on service continuity Figure F.3 \u2013 Single line diagram with gas partitioning scheme <\/td>\n<\/tr>\n | ||||||
| 73<\/td>\n | Figure F.4 \u2013 Localisation and isolation Figure F.5 \u2013 Removal of busbar disconnector in SECTION-1 <\/td>\n<\/tr>\n | ||||||
| 74<\/td>\n | Figure F.6 \u2013 Removal of busbar disconnector in SECTION-3 Figure F.7 \u2013 Extension <\/td>\n<\/tr>\n | ||||||
| 75<\/td>\n | Figure F.8 \u2013 On-site dielectric test <\/td>\n<\/tr>\n | ||||||
| 76<\/td>\n | Table F.1 \u2013 Example for service continuity requirements <\/td>\n<\/tr>\n | ||||||
| 78<\/td>\n | Annex G (informative) \nInsulation levels for GIS with rated voltages higher than 800 kV Table G.1 \u2013 Insulation levels used for GIS with rated voltages higherthan 800\u00a0kV in different countries <\/td>\n<\/tr>\n | ||||||
| 79<\/td>\n | Annex H (informative) \nList of notes concerning certain countries <\/td>\n<\/tr>\n | ||||||
| 80<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" High-voltage switchgear and controlgear – Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV<\/b><\/p>\n |