ASME8133-478II075967000415293HIAMERICANNATIONALSTANDARDGasTurbineControlandProtectionSystemsANSI8133.4-1978SECRETARIATTHEAMERICANSOCIETYOFMECHANICALENGINEERSPUBLISHEDBYTHEAMERICANSOCIETYOFMECHANICALENGINEERSUnitedEngineeringCenter345East47thStreetNewYork,N.Y.10017ASME8133.478..07596700041530TBlNopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.Copyright©1978byTHEAMERICANSOCIETYOFMECHANICALENGINEERSAllRightsReservedPrintedinU.S.A.ASME8133.478II075967000415311IIFOREWORDThepurposeoftheB133standardsistoprovidecriteriaforthepreparationofgasturbineprocure-mentspecifications.Thesestandardswillalsobeusefulforresponsetosuchspecifications.TheB133standardsprovideessentialinformationfortheprocurementofgasturbinepowerplants.Theyapplytoopen-cycle,closed-cycle,andsemi-closedcyclegasturbineswithconventionalcombustionsystemsforindustrial,marine,andelectricpowerapplications.Allauxiliariesneededforproperoperationarecovered.Notincludedaregasturbinesappliedtoearthmovingmachines,agriculturalandindustrial-typetractors,automobiles,trucks,busesandaero-propulsionunits.Forgasturbinesusingunconventionalorspecialheatsources(suchas:chemicalprocesses,nuclearre-actors,orfurnacesforsuperchargedboilers),thesestandardsmaybeusedasabasis;butappropriatemodi-ficationsmaybenecessary.TheintentoftheB133standardsistocoverthenormalrequirementsofthemajorityofapplications,recognizingthateconomictrade-offsandreliabilityimplicationsmaydifferinsomeapplications.Theusermaydesiretoadd,deleteormodifytherequirementsinthisstandardtomeethiS-specificneeds,andhehastheoptionofdoingsoinhisownprocurementspecification.AsspecifiedintheB133.4standard,thegasturbinecontrolsystemshallincludesequencing,control,protectionandoperatorinformationwhichshallprovidefortheorderlyandsafestartupofthegasturbine,controlofproperloadingandanorderlyshutdownprocedure.Itshallincludeanemergencyshutdowncapabilitywhichcanbeoperatedautomaticallybysuitablefailuredetecto...