文档介绍：USERMANUALDSSD331/DTSD341-9DTHREEPHASEELECTRONICMULTIFUNCTIONENERGYMETERContent1. Overview . Standard . WorkingTheory . NameplateDescription . TechnicalParameter 72. Glossary . Demandinterval . Maximumdemand . Slidingwindowtime . Peakon,Peak,Peakoff,Valley,LowValley,LowestValleytimezone . Harmonicvoltage(voltageDistortion) . urrent(currentDistortion) . TotalVoltageHarmonicDistortion(THDU) . TotalCurrentharmonicDistortion(THDi) 83. FunctionIntroduction . TOUenergymeasurement(sixtariffs,4quadrants) . Measurecurrent,voltage,frequencyandpower . . Harmonicanalyze . ountdata . Therecordofloadcurve . MainandSubsidiaryTariffSetting . Therecordofevent -neutralitycurrent . FreezingEnergy . uracycheck . Othersignaloutput . DoubleRS-munication . ReadingmeterwhenPTshutdown . Battery 124. LCDDescription . LCDdisplayface . Descriptionofmaindisplayscreen. . Dendritemenu(referstoappendix1) . Descriptionofmenu,displayscreenandthemark.