Neutral Beam Power Supplies for ITER: - Fusion For Energy - Europa

Neutral Beam Power Supplies for ITER:Calls for Tender planned in 2009, 2010 and beyondMuriel Simon, H&CD Group, ITER DepartmentHeating and Current Drive Power Supplies for ITERInformation day 27 May 2009 – Barcelona

BackgroundNeutral Beam Power Supplies are needed:– For the ITER experiment in Cadarache, France– For the Neutral Beam Test Facility in Padua (SPIDER, MITICA)ITER SitePadua test SiteIn total, it is planned to distribute the overall procurement of the Neutral BeamPower Supplies over 6 procurement contracts:4 are for procurements covering both the NB Test Facility and ITER injectors2 are for procurements specific to the NB Test Facility in Padua (SPIDER)F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Layout for the 1MV NB Injector2. 2. Acceleration Acceleration Grid Grid PS 1. Ion Source and Extraction Power Supplies2.PS2. Ground Ground Related Related PS1. Ion Source and Extraction Power SuppliesPS3.3.HVHVDeckDeck3.3.HVD1-TLHVD1-TLBushingBushingF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Layout for the 100kV Ion Source1. Ion Source and Extraction Power Supplies (// ITER)1. Ion Source and Extraction Power Supplies (// ITER)3.3.100kV100kVPowerPowerSuppliesSupplies2.2.HVHVDeckDeck++TransmissionTransmissionLinesLinesF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Draft Procurement scheduleOne contract per component,covering both NBTF and ITER sites1. ISEPS (2010 - 2018)SPIDERMITICAITER (2 units)2. HVD1 – TL SPIDER (2010 – 2012) SPIDERSPIDER3. 100kV PS (2010 – 2012)SPIDERMITICA4. AGPS (2010 - 2018)MITICAITER (2 units)5. HVD1 – Bushing (2010 – 2018)MITICAITERITER (2 units)6. NB CODAQ (2012 – 2018)MITICAITER (2 units)20092010 2011 2012 2013 2014 2015 2016 2017 2018F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

⇒ This presentation:First Calls, mid 2009: Ion Source PS (100kV HV Deck+TL)End 2009, 2010: 100kV PS (1MV PS + GRPS+ PS Control) (1MV HV Deck + Bushing),Beyond 2010: NB ControlF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Scope of supply for all PS procurements1. Detailed Design, up to manufacturing drawings2. Fabrication3. Factory testing4. Transport5. Installation6. On-site commissioning and acceptance testing7. Documentation and TrainingF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Short-termProcurement 1: Ion Source Power Supplies –ISEPSCall for Tender planned Q3 2009F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Ion Source and Extraction PowerSupplies - ISEPSFirst units are for the Test Facility in Padua (SPIDER, thenMITICA)- Additional units needed later for ITER Site inFrance (NBI-1, NBI-2)- In total, 4 units neededISEPSSPIDERISEPSMITICAISEPScontractISEPSNBI-1ISEPSNBI-2F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS operating conditionsSPIDERMITICAITER HNBMaximum pulse duration3600 s==Duty cycle1 shot/10 min for pulse duration 150 s==Modulation requiredYes (5Hz for 3 sec every 20 sec)NoNoPulse dutyTotal number of pulsesTotal beam on timeTotal number of breakdownsITER Operational life50,0001.98x10 7 s450,000ParameterMaximum detection timeMaximum switch-off timeTime to be ready for restart after a BDMaximum number of BD for a singlepulseGrid breakdowns50 µs100 µs20 msValue200 total (in 1 hour)50 consecutiveF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS – Main componentsISEPS of MITICARadio Frequency PSExtraction Grid PSISEPS Main componentsISEPS of SPIDERSource Support PSRadio Frequency PSExtraction Grid PSSource Support PSRadio Frequency PSExtraction Grid PSSource Support PSLoad connections and groundingPower distribution inside and outside theHigh Voltage DeckLoad connections and groundingPower distribution inside and outsidethe High Voltage DeckISEPS local control and protectionsystemAdditional equipment: lighting,cooling, signal connections+ Testing TransformerLoad connections and groundingISEPS local control and protection systemISEPS of ITER NBIPower distribution inside and outsidethe High Voltage DeckISEPS local control and protectionsystemAdditional equipment: lighting, cooling,signal connectionsAdditional equipment: lighting, cooling,signal connections+ Bias Plate PS+100kV TransformerRadio Frequency PSExtraction Grid PSSource Support PSLoad connections and groundingPower distribution inside and outside theHigh Voltage DeckISEPS local control and protection systemAdditional equipment: lighting, cooling,signal connections+ Testing Transformer+24kV disconnector & switchF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS – Main componentsISEPS Main componentsRadio Frequency PSExtraction Grid PSSource Support PSLoad connections and groundingPower distribution inside andoutside the High Voltage Deck44××200kW200kW1MHz1MHzRF-PSRF-PSISEPS local control and protectionsystemAdditional equipment: lighting,cooling, signal connectionsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS – Main componentsISEPS Main componentsRadio Frequency PSExtraction Grid PSSource Support PS12kV EG-PS12kV EG-PSLoad connections and groundingPower distribution inside andoutside the High Voltage DeckISEPS local control and protectionsystemAdditional equipment: lighting,cooling, signal connectionsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS main specifications - EGPSRatingsOutput voltage-12 kV dcOutput voltage range0 – 100%ExtractionGridPSAGPSI(beam) + I(coestr. elec.)I (coestr. elec.)Plasma GridExtraction GridI(beam)0 kVOutput voltageresolutionRated output currentMaximum switch-off timeEnergy onto breakdownTime to be ready after aBD100 V140 A100 µs10J20 msQuantity to be controlledVoltageEfficiency at full power> 80%F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS – Main componentsISEPS Main componentsRadio Frequency PSExtraction Grid PSSource Support PSSource support PSSource support PSLoad connections and groundingPower distribution inside andoutside the High Voltage DeckISEPS local control and protectionsystemAdditional equipment: lighting,cooling, signal connectionsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS main specifications - SSPSRated output powerOutput voltageOutput currentOutput current rangeCurrent accuracyRatings requiredat the power supply75 kW15 V5 kA0 – 100%1%Ratings requiredat the power supplyOutput voltageOutput voltage resolutionRated output currentVoltage accuracyQuantity to be controlledRatings requiredat the power supply0 - 30 V0.1 V150 A5 %Voltage / CurrentNumber of unitsTotal PowerType of supplyNumber of unitsOutput CurrentRatings requiredat the power supply33 x 400 W220 - 240V ac 50HzRatings requiredat the power supply2140 ARated output power18 kWOutput Voltage50 VOutput voltageOutput currentVoltage accuracyCurrent accuracyQuantity to be controlled0 - 30 V0 - 600 A1 %1 %Voltage / CurrentNumber of filaments8PowerType of outputOutput voltageRatings requiredat the power supply1200 Wac 50Hz20 VQuantity to be controlledCurrent accuracyMax peak to peak currentripplecurrent1 %1 %Output current60 AF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS – Main componentsISEPS Main componentsRadio Frequency PSExtraction Grid PSSource Support PSLoad connections andgroundingLoad collector, connection ISEPS – term. Board,grounding switches…Power distribution inside andoutside the High Voltage DeckISEPS local control andprotection systemAdditional equipmentInside: Earthing network, 6.6kV distributionboard, 6.6kV/400V transformers, 400Vdistribution, Uninterruptible Power SupplyOutside: 22kV and 6.6kV cablingLighting, cooling distribution, signalconnectionsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS – Main componentsISEPS Main componentsRadio Frequency PSExtraction Grid PSSource Support PSLoad connections and groundingPower distribution inside andoutside the High Voltage DeckISEPS local control andprotection systemAdditional equipment: lighting,cooling, signal connectionsFUNCTIONS:• Set-up parameters for the operation of the ISEPSand ensure correct operation during normaloperation and during commissioning• Allow local operation of ISEPS• Provide monitoring, protection, interlocking, alarmhandling, alarm logging, data collection and signalconditioning• Exchange data and signals with NBI Plant ControlSystem• Exchange information with NBI Plant InterlockSystem• Display status of all control and protective devicesof ISEPSF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS main specifications – control & protectionAll within ISEPS procurementNBI PS ControlISEPS Local Control AGPS Local Control GRPS Local ControlTL & HVD LocalControlRadio Frequency PSLCUExtraction Grid PSLCUSource Support PSLCUIon Source PowerDistribution PSLCUIndividual Local Control UnitsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

ISEPS main specifications – 100kV transformerISEPS of SPIDERRadio Frequency PSExtraction Grid PSSource Support PS (+ Bias Plate PS)Load connections and groundingPower distribution inside and outside the High VoltageDeckISEPS local control and protection systemNumber of input and output phases:Rated frequency:Installation:Type of duty:Rated pulsed power:Nominal duty cycle at the rated pulsed power:Maximum pulse duration:Rated primary voltage:Highest system voltage:System short circuit power:Rated secondary voltage:Insulating level between primary and secondarywindings350 Hzoutdoorpulsed5 MVA25% ON / 75% OFF3600 s22 kV rms24 kV rms0.85 GVA6.6 kV rms-100kV dcAdditional equipment: lighting, cooling, signalconnections-100kV insulation transformer (SPIDER only)F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Summary procurement 1: Ion Source and Extraction PowerSupplies, 4 units neededSPIDERMITICAIHNB1IHNB224 kV disconnector and earthing switchRadio Frequency PS (RFPS)Extraction Grid PS (EGPS)Source Support PS (Plasma Grid, Bias, Starter Filament, Caesium Oven,Core snubber Bias)Bias Plate PS (BPPS) and associated dummy loadLoad connections and groundingPower distribution inside and outside the HV DeckISEPS Local Control and Protection SystemsAdditional equipment (lighting, cooling, signal connections)100 kV Insulation TransformerDummy LoadsISEPS Testing TransformerSpecial equipment necessary for the operation and maintenanceF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Short-termProcurement 2: High Voltage Deck andTransmission Lines for SPIDERCall for Tender planned Q3 2009F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

HVD and TL for SPIDERScope of supply – main componentsThe main components of this procurement are:1. The Transmission Line, which has to connect the Ion Source andExtraction Grid Power Supplies (ISEPS) located inside the HighVoltage Deck to the Ion Source and to transmit the electricalpower for the beam acceleration;2. The High Voltage Deck, which is the insulated platform hosting allthe equipment forming the ISEPS;3. Additional equipment including the Terminal Board, the insulatedplatform, the catwalk, an electrical-EMI screening, insulated tubesfor cooling water supply and insulating support for Fiber Optic.Again, the supply includes the Detailed Design, the Fabrication and factory testing, the transport, delivery andinstallation on site, the commissioning and acceptance testing on-site and the associated documentation antraining.F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

2485 mm 22485 mm 2SPIDER HVD+TL – Main specifications1. The Transmission lineInner conductor: cylindrical High Voltageelectrostatic Screen (HVS) of 500mm diametercontaining ISEPS power and measurementcontrolconductors coming from the HVD. Thescreen is polarized at the negative electricpotential resulting from composition of AGPSand EGPS voltages; on the external screensurface core snubber rings are uniformlydistributed along the line length.Conductor (RT conductor) which returns theaccelerator current from the Grounded Gridtowards the AGPS;MetallicframeMetallic flange(soldered on theframe)Threaded pin(soldered on theflange)ML ML MLML ML MLRF #2Ceiling of the Ion Sourceconcrete shieldingMLVPGF-E5.1 kAMHVEGBI 0.6kA1600 mm 2EGPGF-B5.6 kARF #1 RF #42SF+BMOF (12 fibers)ITMLVMLGP CSBMHVEGMLVMLVMLVMLVRF #3MLVCO+CSInsulatingsupportInsulatingsleeveThreadedpinExternal conductor: double screening againstElectro Magnetic Interferences (EMI) consistingin two metallic sheets separated by aninsulating layer.RTFloor of the Ion Source shieldingor supporting structure(Design for reference only)F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

TL Inner conductorPost insulatorsPostinsulatorMetallictapeSteel rodsMeasurement cablesCoppermesh(HVS)SteelframeMOF (12 fibers)CabletrayMLVMLVMLVMLV MLV MLVMLV MLV MLVBusbarBI 0.6kA1600 mm 2MLVMLVMLV MLVMLVCO+CSRF conductorsPGF-EPGF-B5.1 kA5.6 kARF #1 RF #42485 mm 22485 mm 2RF #22SF+BPIT GP CSBRF #3MHVEGEGMHVEGInsulatingmaterialRFconductor500500mmF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Transmission linerouting5 sections betweenthe HV deck and theSource.Vertical sectioninterfaced with thevessel presents thelargest cross-section1.6mF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

SPIDER HV Deck – Main specifications2. High Voltage DeckThe High Voltage Deck (HVD) is an air insulated box, polarized at -100kVdc /ground.It contains all devices forming the ISEPS (such as transformers, power and controlcubicles), the related diagnostics and also all the auxiliary equipment (lighting, low voltageAC distribution, ventilation system and water cooling circuits).During operation the HVD is fed by an insulation transformer which provides main ACpower supply via a 3-phase plus neutral insulated (100kV) cables routing.In order to comply with the required insulation level, the overall HVD structure load has tobe sustained by means of insulating supports with a dry arc height of 1m, in order towithstand steady state and transient voltage associated to accelerator grids breakdownevents. The same clearance must be assured all around HVD structure.F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

HV Deck - Dimensions and loadHVD dimensions: 13m (L) x 11m (W) x 5m (H).clearance to the roof ≥ 1 m.1m pitTotal equipment loadestimated at ~35 tonsAverage per unit weightof 250 kg/m2(Maximum load ~750kg/m2 locally)13 m5 m 1 mInsulated platformEstimated equipment load ~8tons.Accessible from outside by aninsulated stair.Accessible inside HVD fromground plan by means of aremovable insulated backstairs.11 mF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Interface HV Deck - TLTerminal boardOnly the inner conductorenters the HV DeckIon Source PSconnectionsInsulatedsupportF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Medium-TermProcurement 3: 100kV Power Supplies for SPIDERCall for Tender planned Q4 2009F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

100kV PS for SPIDERScope of supply – main componentsThe main functions of the HV Power Supply unit is to supply, with thespecified voltage regulation and control, the high voltage DC electrical powerrequired for operation of SPIDER Ion source.Specifications very similar to the PS procured by the Indian Domestic Agencyfor the Diagnostic Neutral BeamThe supply includes the Detailed Design, the Fabrication and factory testing, the transport, delivery andinstallation on site, the commissioning and acceptance testing on-site and the associated documentation antraining.F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

100kV PS Preliminary specificationsOutput parametersRated output voltageRated output currentPulse durationModulation- 100kV dc71A dcContinuous up to 1 hour5Hz for 3 sec every 20 secRise time of output voltage (10 – 90%)Output Voltage stabilityDuty cycleTime to be ready for restart0.5ms±1%25% pulse 75% OFF20ms or lessF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

100kV PS - line diagramWorking principle: numerous voltage steps, inseries, that can be switched in and out, ensuringfast voltage modulation as per SPIDERrequirementsMain components: multi winding transformer(s),SPS, Output filters, controlF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Medium-TermProcurement 4: AGPS, GRPS and NBPS Controlfor 1MV injectorsCall for Tender planned Q1 2010F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

100kV PS for SPIDERScope of supply – main components1. Acceleration Grid power Supplies – AGPS (low voltage part)2. Ground-Related Power Supplies - GRPS3. Power Supplies Control & DAQ – for all Neutral Beam PSThe supply includes the Detailed Design, the Fabrication and factory testing, the transport, delivery andinstallation on site, the commissioning and acceptance testing on-site and the associated documentation antraining.F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

1. Acceleration Grid PSFunctional specificationsMax. 54.7MW in D operation, nominal operating conditionsMain Power Supplies (EU) – per injector72kV Disconnector – AGGS22kV Step-down transformer - AGGTAC-DC Conversion System (Converter + DC link) - AGRTDC-AC Conversion System (5 Inverters) - AGGUThe step-up transformers and the High Voltage part are supplied by the Japanese Domestic AgencyF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

F4E66 kVITER gridOutdoor ITER - Building 34 Outdoorstep-downtransformerac/dc convertersystemMAMuG Configurationdc linkInvertersstep-up transformersdioderectifiers(62.8 A)59.4 ADCG1dc filters(2.4 A)3.0 A(-870 kV)-1000 kV(-696 kV)-800 kVH -D -H -D -DCG2AGPS Conversion systemDC Generator(4.3 A)5.3 A(-522 kV)-600 kVH -D -DCG3(3.1 A)3.1 A(-348 kV)-400 kVH -D -DCG4(2.1 A)2.7 A(-174 kV)-200 kVH -D -DCG5(50.9 A)45.3 A0 kVH -D -Interface between JA and EU ProcurementsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Acceleration Grid Power SupplyDisconnector10,000 mechanical manoeuvres / 1,000 opening/closing cyclesNominal current 600A r.m.s.Short time withstand current 25 kA r.m.s. 1sHighest system voltage 72 kV r.m.s.66kV Step-down transformerOil immersed3 input phases, 50HzPrimary voltage 66kV, highest 72kVNb of pulses in lifetime 10,000AC-DC Conversion System12-pulse operationDC-AC invertersOutput: central point to ground, other two are+3.25kV and -3.25kV respectivelySwitching semi-conductorF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

2. Ground Related PS 24KV Disconnector – GRGS GR Transformers - GRGT Active Control Correction Coils (ACCS) PS - GRCC Residual Ion Pump (RID) PS - GRGDCharacteristicValueAverage voltage25kVPeak of alternative component5kVVoltage waveformsTrapezoidal/SinusoidalRated nominal current60APeriod (T)20msSlope time for trapezoidal waveform 1 (t/T) 1ms / 20msAverage component 20 – 100%Voltage regulation rangeAlternative component 20 – 100%Max voltage ripple ± 2 %Maximum pulse duration3600 sPSNominalcurrentNominalVoltageCCPS1 650 A 1000 VCCPS2 650 A 500 VCCPS3 650 A 500 VCCPS4 650 A 1400 VCCPS5 650 A 500 VCCPS6 650 A 1000 VCCPS7 650 A 1000 VF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

3. PS Control & DAQFunctional structure of the NBI control, Interlock and safety SystemThisThisprocurementprocurementOther procurementsOther procurementsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Design General criteria Physical separation between Power Cubicles and Control Cubicles (e.g.different floors, rooms, segregated, etc.) Physical separation between “Remote control” room and “Local control”rooms “Local control” means that you can operate either a single power supply ata time from its local control cubicle or a subset of power supply fromCODAC Flexibility Plant Control Design HandbookF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Medium-TermProcurement 5: 1MV HV Deck and HV Bushing for1MV NBI injectorsCall for Tender in 2010, Procurement strategy TBCF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Scope of supply – main components1. 1MV High Voltage Deck2. 1 MV BushingThe supply includes the Detailed Design, the Fabrication and factory testing, the transport, delivery andinstallation on site, the commissioning and acceptance testing on-site and the associated documentation antraining.F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

1. High Voltage deck (1/2)The High Voltage Deck 1 (HVD1) is an air-insulated Faraday cage which houses thepower supplies of the Ion Source. During normal operation, the HVD1 is at the nominalpotential of -1 MV (dc) with respect to ground and is fed by a single insulation transformer All equipment will be housed on two floors, with both floors accessible from outsideMax 12mMax 12mMax 8mMax 8mDoorSpiralstaircaseUpper floorSpiralstaircaseUpper floorMax10mDoorLowe r floorMax16mMax16mLowe r floorInsulating supportsInsulatingsupportMax6mMax6mInsulating supportsHVH floorHVH floorFront viewSide viewF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

1. High Voltage deck (2/2)In ITER: Building 37 – hosting the Ion Source Power SuppliesThe mechanical structure have to withstand the total equipment load (c.a. 50 tons)All supports rated for the nominal voltage of -1 MV (dc)StaircaseLowe r floorStaircaseUpper floorDummy load(Extraction)DoorPre-acceler. (power)Dummy loadT1-PreT2-PreDoorControl cubiclesMCB 400VT-400V7m7mCoolingMCB6.6kVRF1RF3RF2RF4T-RFRF DCPre-acceler.MCBs/CoolingRFExtractionCODACPG-Bias-StarterExtraction (power)T1-ExtrT2-ExtrTot. weight 2200011m11mTot. weight 2010011m11mRF PSExtraction grid PSPre-acceleration grid PSMCB 6.6kVCoolingPG filter / Bias / Starter / ... PSCODAC interfaceMCB 400VF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

2. High Voltage BushingConnects the -1MV DC air insulated High Voltage Deck to the gas insulatedtransmission line (Japanese procurement)Design and layout are only preliminary, currently under further analysisPriority on preserving the interface with the Japanese supply, provided a technicalsolution is identifiedF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Bushing connection with the Transmission lineReference layout – starting pointHVD1HV linkTransmissionlinesHVD1Plant (top) viewHV bushingFront viewF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Bushing connection with the Transmission lineSeveral alternative layouts under consideration:reduce/remove the HV link, more compact layout, multiplebushing etc..Some examples:F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

High Voltage Bushing designBushing Design alternativesPossible technologies:- Paper oil- Resin Impregnated Paper with SF6- SF6 gas-filledOuter covering:- Porcelain- Silicon rubber shedsDesign Challenges:- High Voltage DC operation- Frequent breakdowns- Number of conductors to accommodate- Interface with the transmission line2 mSection view of the bushing conductorF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

HV Deck and HV bushing procurementTo address these technical challenges, our objective is toencourage industry involvement in the detailed designphase for the bushing:-> competitive dialog, or possible alternative procurementstrategy to develop if needed more than one designsolutionStart of the procurement procedure planned early 2010F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Longer-TermProcurement 6: NB Control & DAQ for the NBIinjectorsProcurement start 2011F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Overall NBI Control & DAQPart of this procurement for historical reasons. Specifications still at an early stageProcurement strategy still to be defined.ThisThisprocurementprocurementOther PS procurementsOther PS procurementsF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Neutral Beam Control and Data AcquisitionSystemThe data acquisition system of the NB system will include the instrumentation needed tocondition, record, display and analyse the measured signal coming from the beam line.A preliminary list of measurement signals includes:• Temperature measurements: neutraliser leading edge, RID, Calorimeter, duct liners, cryopump• Measurement of gas flow at the neutraliser• Measurement of flow rates, temperature and pressure at the entrance/exit of: Neutraliser, RID,Calorimeter, each of grid coolant manifolds, Arc coolant line, filament coolant line• Measurements of currents and voltages of: each grid, the arc, the filaments, the bias• Standard vacuum measurements both in the NB Vessel and in the NB Duct (Fast Penning Gauges andResidual Gas Analyser)• Vertical magnetic stray field measurements (Hall effect probes)• Pressure and temperature of the insulating gas• Water conductivity• Positional Transducer (calorimeter and fast shutter position)• …F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Conclusions• The preparation of the first calls for tender of the H&CD NBPS is being completed and the first calls, for units to beinstalled at the test facilities are expected to be launchedbefore the end of 2009.• Deliveries are spread over a period of almost ten years• Components are generally within the EU “standard”capabilities with few identified exceptions for which expertiseexist but may require some specific design outside normalpractice• The responsibilities for the fulfilment of the specifiedperformances remain with the industry (Functionalspecification are issued by F4E).F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Acknowledgements: contributions from ITEROrganization, Consorzio RFX, F4E colleagues, externalexpert Dieter HrabalMore information:http://fusionforenergy.europa.euF4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009

Thank you!F4E Information Day on Additional Heating Power Supplies for ITER, 27 May 2009