TPSTU02.docx
- 文档编号:11213837
- 上传时间:2023-05-29
- 格式:DOCX
- 页数:33
- 大小:474.13KB
TPSTU02.docx
《TPSTU02.docx》由会员分享,可在线阅读,更多相关《TPSTU02.docx(33页珍藏版)》请在冰点文库上搜索。
TPSTU02
ABBAutomationInc.
ETSITurbine&RotatingMachineryControls
TurbineProtectionSystem(TPS)
TerminationUnit(TPSTU02)
RevisionBboard
User'sManual
–CONTENTS–
SECTION1Introduction1-1
1.1Overview1-1
1.2HydraulicOverspeedProtectionSystems1-3
1.3SpeedProbeApplications1-4
1.4TerminationUnitSpecifications1-5
SECTION2TerminationUnitFunctionalDescription2-1
2.1Overview2-1
2.2ProtectiveRelayLogic&Operation2-2
SECTION3Installation&Configuration3-1
3.1SpecialHandling3-1
3.2UnpackingandInspection3-1
3.3Module/TerminationUnitCabling3-1
3.4TerminationUnitDIPSwitch,Jumper,andDIPShuntConfiguration3-2
3.5TerminationUnitFuses3-7
3.6TerminationUnitWiring3-8
3.7TerminationUnitRelays3-15
3.8StartupPreparation3-16
SECTION4Maintenance4-1
4.1MaintenanceSchedule4-1
4.2ReplacementParts4-1
4.3Repair/ReplacementandOrderingProcedures4-1
–TABLES–
Table1TerminationUnitSpecifications1-5
Table2TerminationUnitOSP,EHC,andTRIPProtectionRelayTruthTable2-2
Table3AnalogDIPshuntXU1–XU6Assignments3-3
Table4AnalogOutputConfiguration3-4
Table5MedianSelectAnalogOutput(TB11-25&26)Configuration3-4
Table6FunctionoftheJumpersintheSpeedInputCircuits3-5
Table7JumperAssignmentsforEachSpeedInput3-5
Table8MaintenanceSchedule4-1
–FIGURES–
Figure1TPSApplicationExample1-2
Figure2TypicalTurbineProtectionSystem1-3
Figure3ManifoldHydraulicCircuit1-4
Figure4TerminationUnitInput/Outputs2-1
Figure5TerminationUnitDIPSwitch,Jumper,&DIPShuntLocations3-2
Figure6AnalogInputDIPshuntConfigurationfor3IndividualInputs3-3
Figure7AnalogInputDIPshuntConfigurationforaSingleInput3-4
Figure8SpeedInput#1Circuit3-5
Figure9RecommendedJumperConfigurationforDifferentSpeedProbeTypes3-6
Figure10TerminationUnitFuseLocations3-7
Figure11TerminationUnitTerminalBoardLocations3-8
Figure12TerminationUnitPowerConnections3-9
Figure13SingleAnalogInputConnections3-12
Figure14SingleDigitalInputConnections3-13
Figure15PassiveSpeedProbeWiringConnections3-14
Figure16+24VDCPoweredActiveSpeedProbeWiringConnections3-14
Figure17–24VDCPoweredProximityProbeWiringConnections3-14
Figure18TerminationUnitRelayLocations3-15
!
WARNING!
Observetheseprecautionswhenconfiguring,calibrating,orservicingthisdevice.
1.Onlyqualifiedpersonnelshouldconfigure,calibrate,orservicethisdevice.SystemengineersandtechniciansshouldreadthismanualbeforeinstallingandoperatingtheTurbineProtectionSystem.Amoduleorterminationunitshouldnotbeputintooperationuntilthisinstructionisreadandunderstood.
2.Disconnectpowerortakeprecautionstoensurethatcontactwithenergizedpartsisavoidedwhenservicing.
3.Allcomponentswhetherintransportation,operation,orstoragemustbeinanon-corrosiveenvironment.
4.Thecontrolsystemapplicationmustbecarefullyevaluatedwheneverconfiguringorperformingmaintenancetopreventpersonnelinjuryand/orpropertydamageinthecaseofcomponentfailureorimproperoperation.
TheterminationunitcontainsElectrostaticSensitiveDevices(ESD).Obeyanti-staticprecautionsanduseanti-staticprotectionwhenservicing.
**NOTE**
Variousturbinemanufacturersusedifferenttermsforturbinevalvesandcomponents.Forexample,thismanualusestheterm“GovernorValve”forthesteamchestvalve(s)whereassometurbinesprefer“ControlValve”.Similarly,theterm“ThrottleValve”isusedforthevalve(s)upstreamoftheGovernorValvewhereassometurbinesprefer“StopValve”.TheterminologyusedinthismanualisnotintendedtoindicateapreferenceforonemanufactureortolimittheapplicationontheTurbineProtectionSystem.PleaseconsultwithETSIifthereareanyquestionsorconfusionregardingtheterminologyusedinthismanual.
SECTION1Introduction
1.1Overview
TheTurbineProtectionSystem(TPS)consistsofthreeTPS02modulescabledtoasingleTPSTU02terminationunit.Allelectronicoverspeedrelatedprotectivefunctionsaremonitoredandinitiatedinthemodulesandterminationunit.TheseprotectivefunctionsareindependentoftheInfi90MultifunctionProcessor(MFP)anddatahighways.Tripleredundantinputs,2-of-3-protectionlogic,andon-linetestingcapabilityareusedtoprovidehighreliability.Eachoftheprotectivefunctionsutilizesrelaysontheterminationunittocontrolactivationofthefunction,threeofwhichhavefourrelayoutputsforusewithhydraulicmanifoldssuchasthoseprovidedbyETSI,whichuse“1-of-2-twice”logicthatallowsforon-linetestingofthemanifolds.Themoduleutilizesanon-boardmicroprocessorandmemorytoprocessinputdata,controloutputs,andcommunicatewiththeBaileyInfi90OPENcontrolsystem.Themoduleprovidesthefollowingoverspeedprotectivefunctions:
OverSpeedProtection(OSP):
TypicallyactivatestheOverSpeedManifoldthatshutstheGovernorandInterceptValvestocontrolanoverspeedsituationwithouthavingtoinitiateaturbinetrip.Twoconditionswillactivatethisfunction:
(1)turbinespeedexceedstheOSPsetpoint(typically103%ofratedspeed)
or
(2)thegeneratorbreakeropenswithturbineloadaboveaminimumthresholdvalue.Thisactionoccursregardlessofactualturbinespeedinanticipationofanoverspeedcondition.
TurbineTrip(TRIP):
OperatesinparallelwithorinlieuoftheOEMelectricalturbinetrip(typicallyasolenoiddumpvalveintheturbinecontroloilcircuit)thatrapidlyshutsalloftheturbinevalveactuators.Thesetpointistypically110%ofratedturbinespeed.
EHCProtection(EHC):
OperatesinconjunctionwiththeTRIPfunctiontoactivatetheEHCManifold,whichdumpsthehydraulicpressuretoallofthevalveactuators.ThesetpointisthesameastheTRIPsetpoint.
PowerLoadImbalance(PLI):
Megawatts(electricalloadoutput)andIntermediatePressure(IP)TurbineExhaustPressure(mechanicalloadinput)arecomparedtodetermineifthereisanimbalancebetweenthetwo.Iftheturbinemechanicalloadinputexceedstheelectricalloadoutputbyasetamount,anoverspeedsituationisanticipatedandadigitaloutputisgeneratedforaspecifiedtimeperiod,whichistypicallyusedtobrieflyclosetheInterceptValves.
Themoduleprovidesturbinespeed,megawatts,IPexhaustpressure,andloadimbalancevaluesplusturbinetripandgeneratorbreakerstatustotheMFPovertheInfi90ExpanderBus.Duringnormaloperation,aFrontPanelDisplayonthemoduleprovideslocalindicationofturbinespeed,megawatts,loadimbalance,andmodulestatus.TheFrontPanelDisplayisalsousedduringmoduleconfigurationtodisplaytheconfigurationparameters.Push-buttonsontheFrontPanelDisplayareusedtomakechangestothemoduleconfiguration.
Eachmodulegeneratestripsignalsandcalculatesturbinespeedandloadimbalanceindependentoftheothers.Interposingrelaysareprovidedforalldigitaloutputs.Whenamodulegeneratesaprotectivefunctionsignal,itactivatesarelayontheTU.Theterminationunituses2-of-3modulesvotingtodeterminewhentoactivateallrelaysassociatedwiththatprotectivefunction.Eachmoduleisprovidedaseparatespeedinputsignalfromtheterminationunit.Amedianselectioncircuitontheterminationunitisusedtoselectananalogoutputsignalfromthethreemodules.Themedianselectioncanbespeed(default),megawatts,IPexhaustpressure,ordeltapower.
Figure1illustratesabasicInfi90turbinecontrolsystemusingtheTPSforturbine-overspeed-protection.AllfieldI/Oisconnectedtotheterminationunit,whichexchangessignalswiththemodule.CommunicationsbetweentheassociatedMulti-FunctionProcessor(MFP)andthemoduleareviatheExpanderBus.OtherMFPscanaccessthedatainthemoduleviatheControlway.
Figure1TPSApplicationExample
WhentheTPSisintegratedwithanETSIturbinecontrolsystem,overspeedprotectionisindependentoftheInfi90processorsanddatahighways.Thus,turbineprotectionisretainedevenintheunlikelyeventofafailureoftheredundantprocessorsanddatahighways.Turbinespeed,Megawatts,IPExhaustpressure,orDeltapowermaybemonitoredusingtheanalogoutputsignalsfromtheterminationunit.IfanMFPshouldfail,turbinecontrolcanbemaintainedviatheEmergencyManualfeatureoftheHydraulicServoModuleusedinETSIturbinecontrolsystems.
ForturbinesthatdonothaveanInfi90basedturbinecontrolsystem,astand-aloneturbineoverspeedprotectionsystemcanbeconfiguredusingthreemodulesinstalledinasingleModularMountingUnit(MMU)connectedtooneterminationunit.AmodularpowersupplymountsintheMMUalongsidethemodules(redundantsuppliescanbeusedifdesired).TripsetpointsandotherparametersareenteredthroughtheFrontPanelDisplayonthemodule.ThisconfigurationprovidesthesameoverspeedprotectionfunctionsandturbinespeedindicationasasystemintegratedintoanInfi90turbinecontrolsystemexceptitdoesnotprovidetheabilitytotestthetripfunctionsoroutputanyanalogvaluesexceptturbinespeed.TheFrontPanelDisplayprovideslocalindicationofMegawatts,PowerLoadImbalance,andTurbineSpeed.ByaddinganMFPandauserinterfacemoduletothesystemconfiguration,allofthefunctionsdetailedinthisdocumentareavailable.
1.2HydraulicOverspeedProtectionSystems
TheTPSwasspecificallydesignedforusewithelectro-hydraulicprotectionschemessuchastheoneshowninFigure2.Thevarioushydraulicmanifoldsacttodepressurizetheassociatedhydraulicheadertoinitiatethefunction.Forotherprotectionsystems,theoutpu
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- TPSTU02