Set value for parameter"VoltageInput"Comment4PosSeq CVGAPC function will measure internally calculated positivesequence voltage phasor5-NegSeq CVGAPC function will measure internally calculated negativesequence voltage phasor. This voltage phasor will beintentionally rotated for 180° in order to enable easier settingsfor the directional feature when used.6-3*ZeroSeq CVGAPC function will measure internally calculated zerosequence voltage phasor multiplied by factor 3. This voltagephasor will be intentionally rotated for 180° in order to enableeasier settings for the directional feature when used.7MaxPh CVGAPC function will measure voltage phasor of the phase withmaximum magnitude8MinPh CVGAPC function will measure voltage phasor of the phase withminimum magnitude9UnbalancePh CVGAPC function will measure magnitude of unbalancevoltage, which is internally calculated as the algebraicmagnitude difference between the voltage phasor of the phasewith maximum magnitude and voltage phasor of the phase withminimum magnitude. Phase angle will be set to 0° all the time10phase1-phase2 CVGAPC function will measure the voltage phasor internallycalculated as the vector difference between the phase L1voltage phasor and phase L2 voltage phasor (UL1-UL2)11phase2-phase3 CVGAPC function will measure the voltage phasor internallycalculated as the vector difference between the phase L2voltage phasor and phase L3 voltage phasor (UL2-UL3)12phase3-phase1 CVGAPC function will measure the voltage phasor internallycalculated as the vector difference between the phase L3voltage phasor and phase L1 voltage phasor (UL3-UL1)13MaxPh-Ph CVGAPC function will measure ph-ph voltage phasor with themaximum magnitude14MinPh-Ph CVGAPC function will measure ph-ph voltage phasor with theminimum magnitude15UnbalancePh-Ph CVGAPC function will measure magnitude of unbalancevoltage, which is internally calculated as the algebraicmagnitude difference between the ph-ph voltage phasor withmaximum magnitude and ph-ph voltage phasor with minimummagnitude. Phase angle will be set to 0° all the timeIt is important to notice that the voltage selection from table 49 is always applicableregardless the actual external VT connections. The three-phase VT inputs can beconnected to IED as either three phase-to-earth voltages UL1, UL2 & UL3 or threephase-to-phase voltages UL1L2, UL2L3 & UL3L1VAB, VBC and VCA. Thisinformation about actual VT connection is entered as a setting parameter for the pre-processing block, which will then take automatically care about it.12.1.2.2 Base quantities for CVGAPC functionThe parameter settings for the base quantities, which represent the base (100%) forpickup levels of all measuring stages shall be entered as setting parameters for everyCVGAPC function.Section 12 1MRK 502 071-UEN -Multipurpose protection448 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062Application manual
