8.11.6 Monitored dataTable 226:GOPPDOP Monitored dataName Type Values (Range) Unit DescriptionP REAL - MW Active power P in MWPPERCENT REAL - % Active power P in % ofSBaseQ REAL - MVAr Reactive power Q inMVArQPERCENT REAL - % Reactive power Q in % ofSBase8.11.7 Operation principleA simplified scheme showing the principle of the power protection function is shownin figure 199. The function has two stages with individual settings.IEC06000567-2-en.vsdChosen currentphasorsChosen voltagephasorsComplexpowercalculationPDerivation ofS(composant)in Char angleS(angle) S(angle) >Power1t TRIP1START1QP = POWREQ = POWIMS(angle) >Power2t TRIP2START2IEC06000567 V2 ENFigure 199: Simplified logic diagram of the power protection functionThe function will use voltage and current phasors calculated in the pre-processingblocks. The apparent complex power is calculated according to chosen formula asshown in table 227.1MRK502052-UEN B Section 8Current protection431Technical manual
