Name Values (Range) Unit Step Default DescriptionDrepChNoV_A 1 - 30 Ch 1 5 Recorder Input number recording phasevoltage, VADrepChNoV_B 1 - 30 Ch 1 6 Recorder Input number recording phasevoltage, VBDrepChNoV_C 1 - 30 Ch 1 7 Recorder Input number recording phasevoltage, VC14.14.6 Monitored dataTable 493:LMBRFLO Monitored dataName Type Values (Range) Unit DescriptionFLT_REL REAL - - Distance to fault, relativeFLT_DIST REAL - - Distance to fault in line lengthunitFLT_X REAL - Ohm Reactive distance to faultFLT_R REAL - Ohm Resistive distance to faultFLT_LOOP INTEGER 0=---1=L1-N2=L2-N3=L3-N4=L1-L25=L2-L36=L3-L17=L1-L2-L3- Fault loop14.14.7 Operation principleThe Fault locator (LMBRFLO) in the IED is an essential complement to other monitoringfunctions, since it measures and indicates the distance to the fault with high accuracy.When calculating distance to fault, pre-fault and fault phasors of currents and voltages areselected from the Trip value recorder data, thus the analog signals used by the fault locatormust be among those connected to the disturbance report function. The analogconfiguration (channel selection) is performed using the parameter setting tool withinPCM600.The calculation algorithm considers the effect of load currents, double-end infeed andadditional fault resistance.1MRK 506 335-UUS A Section 14Monitoring665Technical manual
