Gas-Insulated Substations Our Solutions – Our Profile © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Our High Voltage Substations Solutions Gas-Insulated Substations Gas-Insulated Switchgear GIS Page 2 Highly Integrated Switchgear HIS® Oct-11 Air-Insulated Substations Switchgear Bay SIMOBREAKER SIMOVER® Dead Tank Switchgear Bay © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Product Portfolio 8DN8 Product Line 8DN9 8DQ1 8DR1 - Q0 Solution Rated voltage 72.5 kV 145 kV 170 kV 245 kV 300 kV 420 kV 420 kV 550 kV 800 kV Rated shortcircuit current 31.5 kA 40 kA 63 kA 50 kA 63 kA 63 kA 80 kA 63 kA 50 kA Rated current 2500 A 3150 A 4000 A 4000 A 4000 A 4000 A 6300 A 5000 A 5000 A Page 3 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Product Line 8DN8 8DN8 Product Line 8DN9 8DQ1 8DR1 - Q0 Solution Rated voltage 72.5 kV 145 kV 170 kV 245 kV 300 kV 420 kV 420 kV 550 kV 800 kV Rated shortcircuit current 31.5 kA 40 kA 63 kA 50 kA 63 kA 63 kA 80 kA 63 kA 50 kA Rated current 2500 A 3150 A 4000 A 4000 A 4000 A 4000 A 6300 A 5000 A 5000 A Page 4 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN8 up to 72.5 kV / 31.5 kA / 2500 A Technical Data Voltage 72.5 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 140 kV Lightning impulse withstand voltage (1.2/50 µs) 325 kV Busbar Current 2500 A Feeder Current 2500 A Short-circuit breaking current 31.5 kA Short-time withstand current (3 s) 31.5 kA Leakage rate per year and gas compartment < 0.1* % Bay width 650 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 5 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN8 up to 72.5 kV / 31.5 kA / 2500 A 7 2 10 8 M 4 3 M 1 6 5 7 4 5 M 1 8 9 6 3 9 1 2 3 4 5 Circuit-breaker Circuit-breaker control unit with spring operating mechanism Busbar I with disconnecting and earthing switch Busbar II with disconnecting and earthing switch Outgoing module with disconnecting and earthing switch Page 6 Oct-11 6 7 8 9 10 Make-proof earthing switch Current transformer Voltage transformer Cable sealing end Integrated local control cubicle © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN8 up to 145 kV / 40 kA / 3150 A Technical Data Voltage 145 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 275 kV Lightning impulse withstand voltage (1.2/50 µs) 650 kV Busbar Current 3150 A Feeder Current 3150 A Short-circuit breaking current 40 kA Short-time withstand current (3 s) 40 kA Leakage rate per year and gas compartment < 0.1* % Bay width: common drive 800 mm single drive 1200 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 7 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN8 up to 145 kV / 40 kA / 3150 A 2 7 M 4 M 3 10 8 1 7 6 5 4 1 M 5 8 3 6 9 9 1 2 3 4 5 Circuit-breaker Circuit-breaker control unit with spring operating mechanism Busbar I with disconnecting and earthing switch Busbar II with disconnecting and earthing switch Outgoing module with disconnecting and earthing switch Page 8 Oct-11 6 7 8 9 10 Make-proof earthing switch Current transformer Voltage transformer Cable sealing end Integrated local control cubicle © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type HIS 8DN8 up to 145 kV / 40 kA / 3150 A Technical Data Voltage 145 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 275 kV Lightning impulse withstand voltage (1.2/50 µs) 650 kV Busbar Current 3150 A Feeder Current 3150 A Short-circuit breaking current 40 kA Short-time withstand current (3 s) 40 kA Leakage rate per year and gas compartment < 0.1* % Bay width n.a. Driving mechanism of circuit-breaker spring operated (Single and common drive) Ambient temperature -25°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 9 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type HIS 8DN8 up to 145 kV / 40 kA / 3150 A 10 6 3 5 7 5 1 3 8 9 1 2 3 4 5 Circuit-breaker interrupter unit Circuit-breaker control unit with spring operating mechanism Outgoing feeder module with disconnecting and earthing switch Splitting module Current transformer Page 10 Oct-11 6 7 8 9 10 11 Voltage transformer Transformer terminal box High-speed earthing switch Cable sealing end SF6/Air bushing Supporting structure © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN8 up to 170 kV / 63 kA / 4000 A Technical Data Voltage 170 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 325 kV Lightning impulse withstand voltage (1.2/50 µs) 750 kV Busbar Current 4000 A Feeder Current 4000 A Short-circuit breaking current 63 kA Short-time withstand current (3 s) 63 kA Leakage rate per year and gas compartment < 0.1* % Bay width: common drive 1000 mm single drive 1200 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE / GOST other values on request * type tested Page 11 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN8 up to 170 kV / 63 kA / 4000 A 7 8 2 M 4 M 3 10 6 5 1 7 4 1 9 M 5 8 3 6 9 1 2 3 4 5 Circuit-breaker Circuit-breaker control unit with spring operating mechanism Busbar I with disconnecting and earthing switch Busbar II with disconnecting and earthing switch Outgoing module with disconnecting and earthing switch Page 12 Oct-11 6 7 8 9 10 Make-proof earthing switch Current transformer Voltage transformer Cable sealing end Integrated local control cubicle © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Product Line 8DN9 8DN8 Product Line 8DN9 8DQ1 8DR1 - Q0 Solution Rated voltage 72.5 kV 145 kV 170 kV 245 kV 300 kV 420 kV 420 kV 550 kV 800 kV Rated shortcircuit current 31.5 kA 40 kA 63 kA 50 kA 63 kA 63 kA 80 kA 63 kA 50 kA Rated current 2500 A 3150 A 4000 A 4000 A 4000 A 4000 A 6300 A 5000 A 5000 A Page 13 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN9 up to 245 kV / 50 kA / 4000 A Technical Data Voltage 245 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 460 kV Lightning impulse withstand voltage (1.2/50 µs) 1050 kV Busbar Current 4000 A Feeder Current 4000 A Short-circuit breaking current 50 kA Short-time withstand current (3 s) 50 kA Leakage rate per year and gas compartment < 0.1* % Bay width 1500 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 14 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN9 up to 245 kV / 50 kA / 4000 A 6 4 M 3 5 M M 8 1 11 M 9 7M 12 10 13 1 Circuit-breaker interrupter unit 2 Circuit-breaker control unit with spring operating mechanism 3 Busbar disconnector I 4 Busbar I Page 15 Oct-11 5 Busbar disconnector II 6 Busbar II 7 Outgoing disconnector 8 Earthing switch 9 Earthing switch 10 Make-proof earthing switch 11 Current transformer 12 Voltage transformer 13 Cable sealing end 14 Integrated local control cubicle © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN9 up to 300 kV / 63 kA / 4000 A Technical Data Voltage 300 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 460 kV Lightning impulse withstand voltage (1.2/50 µs) 1050 kV Busbar Current 4000 A Feeder Current 4000 A Short-circuit breaking current (2 cycles) 63 kA Short-time withstand current (3 s) 63 kA Leakage rate per year and gas compartment < 0.1* % Bay width 2200 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 16 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DN9 up to 300 kV / 63 kA / 4000 A 3 5 4 6 6 5 4 3 5 5 9 6 1 2 7 8 10 8 6 5 1 7 9 10 1 Circuit-breaker 2 Circuit-breaker control unit with spring operating mechanism 3 Busbar I 4 Busbar II 5 Disconnecting switch Page 17 Oct-11 6 7 8 9 10 Earthing switch Make-proof earthing switch Current transformer Voltage transformer Cable sealing end © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Product Line 8DQ1 8DN8 Product Line 8DN9 8DQ1 8DR1 - Q0 Solution Rated voltage 72.5 kV 145 kV 170 kV 245 kV 300 kV 420 kV 420 kV 550 kV 800 kV Rated shortcircuit current 31.5 kA 40 kA 63 kA 50 kA 63 kA 63 kA 80 kA 63 kA 50 kA Rated current 2500 A 3150 A 4000 A 4000 A 4000 A 4000 A 6300 A 5000 A 5000 A Page 18 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DQ1 up to 420 kV / 63 kA / 4000 A Technical Data Voltage 420 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 650 kV Lightning impulse withstand voltage (1.2/50 µs) 1425 kV Switching impulse withstand voltage (250/2500 µs) 1050 kV Busbar Current 4500 A Feeder Current 4000 A Short-circuit breaking current (2 cycles) 63 kA Short-time withstand current (3 s) 63 kA Leakage rate per year and gas compartment < 0.1* % Bay width 2200 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 19 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DQ1 up to 420 kV / 63 kA / 4000 A 3 5 6 4 6 5 9 4 3 5 5 6 1 8 7 8 2 10 1 6 5 7 9 10 1 Circuit-breaker 2 Circuit-breaker control unit with spring operating mechanism 3 Busbar I 4 Busbar II 5 Disconnecting switch Page 20 Oct-11 6 7 8 9 10 Earthing switch Make-proof earthing switch Current transformer Voltage transformer Cable sealing end © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DQ1 up to 420 kV / 80 kA / 6300 A Technical Data Voltage 420 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 650 kV Lightning impulse withstand voltage (1.2/50 µs) 1425 kV Switching impulse withstand voltage (250/2500 µs) 1050 kV Busbar Current 6300 A Feeder Current 5000 A Short-circuit breaking current (2 cycles) 80 kA Short-time withstand current (3 s) 80 kA Leakage rate per year and gas compartment < 0.1* % Bay width 3600 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 21 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DQ1 up to 420 kV / 80 kA / 6300 A 1 2 3 4 5 6 Circuit-breaker interrupter unit Spring-stored energy mechanism Busbar disconnecting switch I Busbar I Busbar disconnecting switch II Busbar II Page 22 Oct-11 7 Outgoing feeder disconnecting switch 8 Earthing switch 9 Earthing switch 10 Make-proof earthing switch 11 12 13 14 15 Current transformer Voltage transformer Cable sealing end Circuit-breaker control cubicle Local control cubicle © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DQ1 up to 550 kV / 63 kA / 5000 A Technical Data Voltage 550 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 740 kV Lightning impulse withstand voltage (1.2/50 µs) 1675 kV Switching impulse withstand voltage (250/2500 µs) 1250 kV Busbar Current 5000 A Feeder Current 5000 A Short-circuit breaking current (2 cycles) 63 kA Short-time withstand current (3 s) 63 kA Leakage rate per year and gas compartment < 0.1* % Bay width 3600 mm Driving mechanism of circuit-breaker spring operated Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 23 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DQ1 up to 550 kV / 63 kA / 5000 A 1 2 3 4 5 6 Circuit-breaker interrupter unit Spring-stored energy mechanism Busbar disconnecting switch I Busbar I Busbar disconnecting switch II Busbar II Page 24 Oct-11 7 Outgoing feeder disconnecting switch 8 Earthing switch 9 Earthing switch 10 Make-proof earthing switch 11 12 13 14 15 Current transformer Voltage transformer Cable sealing end Circuit-breaker control cubicle Local control cubicle © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Product Line 8DR1 8DN8 Product Line 8DN9 8DQ1 8DR1 - Q0 Solution Rated voltage 72.5 kV 145 kV 170 kV 245 kV 300 kV 420 kV 420 kV 550 kV 800 kV Rated shortcircuit current 31.5 kA 40 kA 63 kA 50 kA 63 kA 63 kA 80 kA 63 kA 50 kA Rated current 2500 A 3150 A 4000 A 4000 A 4000 A 4000 A 6300 A 5000 A 5000 A Page 25 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Type 8DR1 up to 800 kV / 50 kA / 5000 A Technical Data Voltage 800 kV Frequency 50 / 60 Hz Power-frequency withstand voltage (1 min.) 960 kV Lightning impulse withstand voltage (1.2/50 µs) 2100 kV Switching impulse withstand voltage (250/2500 µs) 1425 kV Busbar Current 5000 A Feeder Current 5000 A Short-circuit breaking current (2 cycles) 50 kA Short-time withstand current (3 s) 50 kA Leakage rate per year and gas compartment < 0.1* % Bay width 4500 mm Ambient temperature -30°C up to +40°C Installation indoor/outdoor Expected life time > 50 years Standard IEC / IEEE other values on request * type tested Page 26 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Main Drivers for the Application of GIS-Solutions (1) Restricted space availability High land acquisition costs Short planning, delivery and installation periods Minimal maintenance efforts High degree of safety for operating personnel Long operating life > 50 year Page 27 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Main Drivers for the Application of GIS-Solutions (2) Factory pre-assembled and tested units Protection from aggressive environmental conditions Impervious to wind and ice Low earthquake-sensitivity due to low centre of gravity Customer-tailored solutions due to modular design Extension / Refurbishment of AIS under restricted space availability or during operation Fast and easy erection of pre-assembled bays or bay sections Only a few foundations are required for outdoor-GIS (low civil work efforts) Page 28 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations 61500 AIS / Gas-Insulated Switchgear 245 kV - Indoor Comparison of Space Requirements 50:1 137500 Page 29 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations 67500 101000 AIS / Gas-Insulated Switchgear 420 kV - Indoor Comparison of Space Requirements 30:1 14000 298000 65400 Page 30 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Experience and Innovation More than 40 years experience with gas-insulated switchgear 1964 1960 1968 1974 1997 Start of fundamental studies in research and development of SF6-technology Delivery of first SF6-circuit breaker Delivery of first GIS Delivery of first GIL ( 420 kV ) Introduction of intelligent, bay integrated control, monitoring and diagnostic of newest GIS generation: 1999 Introduction Self-compression interrupter unit and spring operated mechanism Introduction of the trendsetting switchgear concept HIS (Highly Integrated Switchgear) for 2000 extension, retrofit and new compact AIS substations 2005 First GIS with electrical endurance capability (class E2) 2007 Introduction of 72.5 kV GIS – a new dimension in compactness 2009 New generation of cast resin insulators for GIS 2011 Introduction of 420 kV / 63 kA GIS – powerful and compact More than 26,000 bays installed worldwide More than 286,000 bay-years of operation Page 31 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Worldwide Experience of Current GIS-Types Rated voltage up to 145 kV 300 kV 550 kV Delivered bays 17,200 6,500 2,500 Bay-years of operation 197,000 64,000 25,000 total 26,200 delivered bays total 286,000 bay-years of operation Page 32 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Quality All-encompassing state-of-the-art quality and environmental management system, certified in accordance with ISO 9001 and ISO 14001 Special clean room conditions in the production Largest, accredited, manufacturer-owned testing laboratory Comprehensive manufacturing inspections and routine tests on individual components and complete modules Type, routine and site-tests according to IEC 62217-203 Page 33 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Assembly Hall Factory Berlin Area 8000 m² Clean room conditions Assembly Locks for material Routine tests (IEC) Page 34 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Machining of Vessels Factory Berlin Computerized technology In-house machining of vessels ensures high quality of sealing surfaces Own paint shop Page 35 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Manufacturing of Cast Resin Insulators Product range Excellent quality through: Spacers, gas tight, - gas permeable State-of-the-art machinery Insulated supports, support insulators Solid know how Insulated shafts, -flanges, -3 ph.-spacer Special fabrications such as sinter parts, manual casting parts Page 36 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Test and Research Laboratories Berlin Over 75 years experience 1 High-Power testing laboratory incl. basic laboratory Switching capability tests Making and breaking tests Short-circuit current carrying and withstand tests Tests of arcing due to internal fault Max. power for direct tests Equivalent power for synthetic tests Short-circuit current for 3s at 35kV 2 High-Voltage testing laboratory incl. outdoor area Dielectric tests up to AC voltage (hall) Partial discharge testing, noise level Lightning impulse voltage (hall) Switching impulse voltage (hall) DC voltage (hall) AC voltage (outdoor) 3 6400 MVA 114 GVA 238/95 kA 1200 <2 3000 2000 600 1800 kV pC kV kV kV kV Mechanical testing laboratory incl. temperature rise Temperature-rise tests up to 6300 A (50 / 60 Hz) Mech. tests (Operation, Endurance, kinematic chain) Gas-tightness / Airborn noise measurements Low- and high temperature / Ice condition tests Degree of protection / Vibrations tests Page 37 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Voltage Test on Site Application of test voltage with frequency-tuned resonant test sets via direct mounted test transformers regular SF6-air-bushing regular test bushing Page 38 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Self-Compression Interrupter Unit Page 39 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Self-Compression Interrupter Unit Arc Quenching Principle up to 145 kV 1 2 3 4 5 1 Contact support 2 Quenching nozzle 3 Main contact 4 Arcing contact 5 Contact cylinder 6 Base 6 Breaker in “on“-position Page 40 Oct-11 Opening: Main contact open Opening: Arcing contact open Breaker in “off“-position © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Self-Compression Interrupter Unit Arc Quenching Principle above 145 kV 1 2 3 4 5 6 7 8 9 10 11 Breaker in “on” position Page 41 Opening: Main contact open Oct-11 Moving arcing contact Main contact Check valve Compression volume Check valve Steering gear Moving arcing rod Insulating nozzle Auxiliary nozzle Contact cylinder Heating volume Opening: Breaker in Arcing contact “off” position open © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Spring Operated Mechanism 1 2 3 4 5 6 On Off Page 42 „off“ position (Closing spring loaded) Oct-11 7 8 9 10 11 12 13 14 15 16 17 Closing release Cam plate Coupling linkage Operating rod Closing spring connection rod Opening spring connection rod Closing spring Hand-wound mechanism Charging mechanism Charging shaft Roller lever Closing damper Operating shaft Opening damper Opening release Mechanism housing Opening spring © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Customer benefits of self-compression circuitbreakers and spring operated mechanism platforms General Interrupter units Reliable basic components Production of key components at one location High availability High reliability Page 43 Oct-11 Low demand of operating forces Low wear and tear High breaking capacity Operating mechanism Robust & simple Low operating forces Low wear and tear Low load transfer onto the foundation High accessibility © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations Gas-Insulated Switchgear Innovation and Trendsetting Technologies Self-compression interrupter unit combining superior latest technical requirements with highest reliability Spring operated mechanism, reliable and maintenance-free Superior reliability through platform solution of interrupter unit and operating mechanism for Live Tank Dead Tank and GIS-Solutions Most compact design worldwide Page 44 Oct-11 © Siemens AG 2011. All rights reserved Energy Sector / Power Transmission / High Voltage Substations
