REX060X61988911101110X81STATOR MODULE SIMROTOR MODULE RIMIEDVOLTAGE MEASURE (U)CURRENT MEASURE (U)IEC11000210-1-en.vsdIEC11000210 V1 ENFigure 164: Connection to IED with two analogue voltage inputsSome settings are required for the analog voltage inputs in the IED. The voltage ratiofor the inputs shall be set 1/1, for example, VTSecx = 100 V VTPrimx = 0.1 kVThe analogue inputs are linked to a pre-processor (SMAI) block in the Signal MatrixTool. This pre-processor block must have the same cycle time, 8 ms, as the functionblock for STTIPHIZ.The default parameter settings shall be used for the pre-processor block.8.8.3.3 100% stator earth fault protectionOperation to be set On to activate the stator earth-fault protectionRTrip is the resistance level,set directly in primary Ohms, for activation of the trip-function.RAlarm is the resistance level, set directly in primary Ohms, for activation of thealarm-function.tAlarm is the time delay to activate the ALARM signal output when the measured faultresistance is below the set RAlarm levelULimRMS is a setting that controls the output URMSSTAT: if the total RMS voltagemeasured by the function at the injection point is above the setting ULimRMS then theoutput URMSSTAT is set to TRUE. The output URMSSTAT can be used in the logicthat selects the active reference impedance. The possibility to use this feature and the1MRK 502 071-UEN - Section 8Impedance protectionGenerator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 307Application manual
