Section 4 1MAC309294-MB FProtection functions270 RER620Technical ManualBlocking logicThe binary input BLOCK can be used to block the function. The activation of the BLOCKinput deactivates RELEASE output and resets the Timer.4.5.6.5 ApplicationThe directional negative/zero sequence power protection (32N) function improves thepossibility to obtain selective function of the over-current protection in meshed networks.The 32N function is used to block or release other over current protection function.4.5.6.6 SignalsTable 281: 32N input signalsTable 282: 32N measured valuesTable 283: 32N output signalsName Type Default DescriptionV2 REAL 0.0 Negative sequence voltageVG REAL 0.0 Measured residual voltage or Ground voltageVN REAL 0.0 Calculated residual voltage or Neutral voltageI2 REAL 0.0 Negative sequence currentIG REAL 0.0 Measured residual current or Ground currentIN REAL 0.0 Calculated residual current or Neutral currentRCA_CTL BOOL FALSE Relay characteristic angle controlBLOCK BOOL FALSE Block signal for all binary outputsName Type Default DescriptionIG_AMPL REAL 0.0 Measured residual current or Ground current amplitudeIG_ANGL REAL 0.0 Measured residual current or Ground current phase angleIN_AMPL REAL 0.0 Calculated residual current or Neutral current amplitudeIN_ANGL REAL 0.0 Calculated residual current or Neutral current phase angleVG_AMPL REAL 0.0 Measured residual voltage or Ground voltage amplitudeVG_ANGL REAL 0.0 Measured residual voltage or Ground voltage phase angleVN_AMPL REAL 0.0 Calculated residual voltage or Neutral voltage amplitudeVN_ANGL REAL 0.0 Calculated residual voltage or Neutral voltage phase angleI2_AMPL REAL 0.0 Negative sequence current amplitudeI2_ANGL REAL 0.0 Negative sequence current phase angleV2_AMPL REAL 0.0 Negative sequence voltage amplitudeV2_ANGL REAL 0.0 Negative sequence voltage phase angleBLOCK BOOL FALSE Block signal for all binary outputsRCA_CTL BOOL FALSE Relay characteristic angle controlName Type DescriptionRELEASE BOOL Release signal if directionality criteria is satisfied
