IEEE/PES Substation Committee - Subcommittee IEEE Substation Committee K2 TF1 of the Subcommittee /GIL/SF 6 -Tutorials -1-
IEEE/PES Substation Committee - Subcommittee IEEE Gas Insulated Switchgear () Design and Development -2-
IEEE/PES Substation Committee - Subcommittee Introduction to Typical Air Insulated Substation 345/230/115kV -3-
IEEE/PES Substation Committee - Subcommittee Introduction to Typical Gas Insulated Substation 345/115kV -4-
IEEE/PES Substation Committee - Subcommittee Introduction to Cable Feeder Unit Mechanism Housing -5-
IEEE/PES Substation Committee - Subcommittee Introduction to Dimension Comparison Technology SF 6 used as the Insulating Media Reduced Clearances - 345 kv AIS 4.6 m (15 feet) - 345 kv 380 mm (15 inches) -6-
IEEE/PES Substation Committee - Subcommittee Introduction to View into Bus Bar: Conductor/Enclosure Dimension -7-
IEEE/PES Substation Committee - Subcommittee Introduction to Classic Single Phase Enclosure of Busbar Disconnector Current Transformer Circuit Breaker Cable Connection Disconnector Current Transformer Circuit Breaker -8-
IEEE/PES Substation Committee - Subcommittee Introduction to Midway Sunset Sunoco Cogen 242 kv Supply year No. of breakers Rated voltage Rated current Rated shortcircuit current 1988 4 242 kv 2000 A 40 ka -9-
IEEE/PES Substation Committee - Subcommittee Introduction to Advanced Three Phase 72.5 to 145 kv -10-
IEEE/PES Substation Committee - Subcommittee Design Features technology: compact, low-life cycle cost and modular for indoor and outdoor applications Modular Design,Factory pre-assembled and tested units Space requirement less than 20 % of comparable AIS Safety (enclosed energized components) Continous Monitoring of SF 6 Densitity Sealed for Operating Life > 50 years Major inspection: not before 25 years 1) 1) Is influenced by the operation duties -11-
IEEE/PES Substation Committee - Subcommittee Design Features technology: compact, low-life cycle cost and modular for indoor and outdoor applications Corrosion-resistant Low fault-probability / high availability Protected against aggressive environmental conditions Seismic resistant Low EMF and susceptibility to EMC -12-
IEEE/PES Substation Committee - Subcommittee Design Features Space Savings 145 kv/31,5 ka, 4000 A Previous Retrofit of an existing AIS Substation by Compact Substation Afterwards Space Reduction appr. 70 % -13-
IEEE/PES Substation Committee - Subcommittee Design Features Modular Structure -14-
IEEE/PES Substation Committee - Subcommittee IEEE Gas Insulated Switchgear () History -15-
IEEE/PES Substation Committee - Subcommittee Steps of Development More than 40 Years of Experience 1960 : Start of fundamental studies in research and development of SF 6 -technology 1968 : Delivery of first 1974 : Delivery of first 420 kv GIL Gas-Insulated Busbar (GIL) 1976 : Delivery of first 550 kv 1979 : Delivery of first 800 kv 1995 : First 420 kv circuit-breaker with only one interrupting chamber per pole more than 20.000 bays in over 2.000 substations installed world-wide more than 200.000 bay-years of operation -16-
IEEE/PES Substation Committee - Subcommittee Steps of Development Evolution of Design 345 kv from 1970 550 kv from1983 230 kv from 1995-17-
IEEE/PES Substation Committee - Subcommittee Steps of Development Progress of Development (145 kv) [%] 110 100 90 80 70 60 50 40 30 20 10 0 Size of building Space requirement Shipping volume 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 Year -18-
IEEE/PES Substation Committee - Subcommittee IEEE Gas Insulated Switchgear () Manufacturing -19-
IEEE/PES Substation Committee - Subcommittee Manufacturing Process Factory Production of main components: Insulating Parts/ Vessels/ Drive Components Assembly (Clean area) Test Lab Training Center -20-
IEEE/PES Substation Committee - Subcommittee Manufacturing Process Insulating Parts: Cast Resin vacuum casting preparation of electrodes -21-
IEEE/PES Substation Committee - Subcommittee Manufacturing Process Prefabrication Housings/Components (2) Testing Pressure and Gas Tightness Routine Test with Helium -22-
IEEE/PES Substation Committee - Subcommittee Manufacturing Process Hydro Static Factory Testing -23-
IEEE/PES Substation Committee - Subcommittee Manufacturing Process Preassembly Interrupter Units Preassembly Example: -interrupter unit 420 kv -24-
IEEE/PES Substation Committee - Subcommittee Manufacturing Process Preassembly Hydraulic Drive Unit Preassembly preassembled and pretested components Example: hydraulic drive for 420 kv -25-
IEEE/PES Substation Committee - Subcommittee Manufacturing Process Assembly Main Assembly Hall Main Assembly circuit-breaker and switchgear assembly clean room Example: Bays 245 kv -26-
IEEE/PES Substation Committee - Subcommittee Thank you for your attention! Any Questions? -27-