CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwhenPART7MeasurementofShaftPowerANSI/ASMEPTC19.7-1980INSTRUMENTSANDAPPARATUSTHEAMERICANSOCIETYOFMECHANICALENGINEERSUnitedEngineeringCenter345East47thStreetNewVork,N.V.10017CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwNopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisherDateofIssuance:August31,1980Copyright01980THEAMERICANSOCIETYOFMECHANICALENGINEERSAllRightsReservedPrintedinU.S.A.CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwFOREWORDThePerformanceTestCodesSupervisoryCommitteeinDecember1974activatedacommitteetorevisePTC19.7(1961)onMeasurementofShaftPower.ThisInstrumentsandApparatusTechnicalCommitteehaspreparedanInstrumentsandApparatusSupplementwhichincorporatesthelatesttechnologyontheMeasurementofShaftPower.TheScopeoftheworkofPTC19.7onMeasurementofShaftPowerislimitedtodescriptivematerialwhichwillenabletheusertoselectanappropriatesystemorprocedureforhisapplica-tion.Itincludescriteriafortheoperatingconditionsoftheequipmentwhosepowerisbeingmeasured.TheObjectofthisSupplementistodescribethefunction,characteristics,advan-tages,disadvantagesandaccuracyofequipmentandtechniquescurrentlyavailableforthemeasurementofshaftpowerinrotatingmachines.Onlythemethodsofmeasurementandinstruments,includinginstructionsfortheiruse,specifiedintheindividualtestcodesaremandatory.Othermethodsofmeasurementandinstru-ments,thatmaybetreatedintheSupplementsonInstrumentsandApparatus,shallnotbeusedunlessagreeabletoallthepartiestothetest.T...
