8.1.5.4 SettingsTable 543:VMMXU Non group settingsParameter Values (Range) Unit Step Default DescriptionOperation 1=on5=off1=on Operation Off / OnMeasurement mode 1=RMS2=DFT2=DFT Selects used measurement modeNum of phases 1=1 out of 32=2 out of 33=3 out of 31=1 out of 3 Number of phases required by limitsupervisionV high high limit 0.00...4.00 xUn 1.40 High alarm voltage limitV high limit 0.00...4.00 xUn 1.20 High warning voltage limitV low limit 0.00...4.00 xUn 0.00 Low warning voltage limitV low low limit 0.00...4.00 xUn 0.00 Low alarm voltage limitV deadband 100...100000 10000 Deadband configuration value forintegral calculation. (percentage ofdifference between min and max as0,001 % s)8.1.5.5 Monitored dataTable 544:VMMXU Monitored dataName Type Values (Range) Unit DescriptionU12-kV FLOAT32 0.00...4.00 xUn Measured phase tophase voltage amplitudephase ABU23-kV FLOAT32 0.00...4.00 xUn Measured phase tophase voltage amplitudephase BCU31-kV FLOAT32 0.00...4.00 xUn Measured phase tophase voltage amplitudephase CA8.1.5.6 Technical dataTable 545:VMMXU Technical dataCharacteristic ValueOperation accuracy Depending on the frequency of the voltagemeasured: fn ±2 HzAt voltages in range 0.01…1.15 x Un±0.5% or ±0.002 x UnSuppression of harmonics DFT: -50 dB at f = n x fn, where n = 2, 3, 4, 5,…RMS: No suppression1YHT530004D05 D Section 8Measurement functions615 series 637Technical Manual
