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PD IEC TS 62271-316:2024 High-voltage switchgear and controlgear - Direct current by-pass switches and paralleling switches, 2024
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- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 General terms and definitions
- 3.2 Assemblies of switchgear and controlgear
- 3.3 Parts of assemblies
- 3.4 Switching devices
- Figures [Go to Page]
- Figure 1 – Example of the location of BPSs in an HVDC transmission system
- 3.5 Parts of switchgear and controlgear
- Figure 2 – Example of the location of a CPS in an HVDC transmission system
- Figure 3 – Example of the location of a LPS in an HVDC transmission system
- 3.6 Operational characteristics of switchgear and controlgear
- 3.7 Characteristic quantities
- Figure 4 – BPS and PS – Opening and closing operations
- Figure 5 – BPS and PS – Close-open cycle
- Figure 6 – BPS and PS – Open-close cycle
- 3.8 Index of definitions
- 4 Normal and special service conditions
- 5 Ratings [Go to Page]
- 5.1 General
- 5.2 Rated direct voltage (Urd)
- 5.3 Rated insulation level (Udd, Up, Us)
- 5.4 Rated continuous current (Ird)
- 5.5 Rated values of short-time withstand current
- 5.6 Rated supply voltage of auxiliary and control circuits (Ua)
- 5.7 Rated supply frequency of auxiliary and control circuits
- 5.8 Rated pressure of compressed gas supply for controlled pressure systems
- 5.101 Rated commutation current
- 5.102 Rated operating sequence
- 6 Design and construction [Go to Page]
- 6.1 Requirements for liquids in switchgear and controlgear
- 6.2 Requirements for gases in switchgear and controlgear
- 6.3 Earthing of switchgear and controlgear
- 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
- Tables [Go to Page]
- Table 1 – Nameplate information
- 6.12 Locking devices
- 6.13 Position indication
- 6.14 Degrees 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
- 6.22 Filling levels for insulation, switching and/or operation
- 6.101 Design of BPSs and PSs
- 6.102 General requirement for operation
- Figure 7 – Example of two series connected BPSs
- 6.103 Pressure limits of fluids for operation
- 6.104 Time quantities
- 6.105 Static mechanical loads
- Table 2 – Examples of static horizontal and vertical forces for static terminal load
- 7 Type tests [Go to Page]
- 7.1 General
- Table 3 – Mandatory type tests
- 7.2 Dielectric tests
- Table 4 – Test conditions in general case for BPSs according to Alternative 1
- Table 5 – Test conditions in general case for BPSs according to Alternative 2
- Table 6 – Test conditions in general case for PSs
- 7.3 Resistance measurement
- 7.4 Continuous current tests
- 7.5 Short-time withstand current and peak withstand current tests
- 7.6 Verification of the protection
- 7.7 Tightness tests
- 7.8 Electromagnetic compatibility tests (EMC)
- 7.9 Additional tests on auxiliary and control circuits
- 7.10 X-radiation test procedure for vacuum interrupters
- 7.101 Mechanical and environmental tests
- Table 7 – Number of operating sequences
- Figure 8 – Test sequence for low temperature test
- Figure 9 – Test sequence for high temperature test
- Figure 10 – Humidity test
- 7.102 Current commutation test
- 8 Routine tests [Go to Page]
- 8.1 General
- 8.2 Dielectric test on the main circuit
- 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
- 9 Guide to the selection of switchgear and controlgear (informative) [Go to Page]
- 9.1 General
- 9.2 Selection of rated values
- 9.3 Cable-interface connections
- 9.4 Continuous or temporary overload due to changed service conditions
- 9.5 Environmental aspects
- 10 Information to be given with enquiries, tenders and orders (informative) [Go to Page]
- 10.1 General
- 10.2 Information with enquiries and orders
- 10.3 Information to be given with tenders
- 11 Transport, storage, installation, operation instructions and maintenance [Go to Page]
- 11.1 General
- 11.2 Conditions during transport, storage and installation
- 11.3 Installation
- 11.4 Operating instructions
- 11.5 Maintenance
- 11.101 Resistors and capacitors
- 12 Safety
- 13 Influence of the product on the environment
- Annexes [Go to Page]
- Annex A (normative) Tolerances on test quantities during type tests
- Table A.1 – Tolerances on test quantities for type tests
- Annex B (normative) Records and reports of type tests [Go to Page]
- B.1 Information and results to be recorded
- B.2 Information to be included in type test reports
- Annex C (informative) Voltages associated with BPSs in different configurations [Go to Page]
- C.1 General
- C.2 Case 1: BPS consisting of a single switching unit
- Figure C.1 – HVDC system with 3 series connected converter units per pole
- Figure C.2 – Different ways to connect a BPS to the grid [Go to Page]
- C.3 Case 2: BPS consisting of two series connected switching units
- Table C.1 – Voltage across the post insulator
- Figure C.3 – HVDC system with 2 series connected converter units per pole
- Annex D (normative) Use of mechanical characteristics and related requirements
- Figure D.1 – Example of reference mechanical characteristics (idealised curve)
- Figure D.2 – Reference mechanical characteristics of Figure D.1 with the envelopes centred over the reference curve (+5 %, –5 %)
- Figure D.3 – Reference mechanical characteristics of Figure D.1 with the envelope fully displaced upward from the reference curve (+10 %, –0 %)
- Figure D.4 – Reference mechanical characteristics of Figure D.1 with the envelope fully displaced downward from the reference curve (+0 %, –10 %)
- Bibliography [Go to Page]
