9.3.2 Power swing detection ZMRPSB M13888-2 v9The aim is to verify that the settings of the Power swing detection functionZMRPSB is according to the setting table and to verify that ZMRPSB operates asexpected.Prepare the IED for verification of settings outlined in Section "Preparing the IEDto verify settings".Before starting this process, all impedance measuring zones shall be set and inoperation. Test the outer resistive boarder in forward and reverse direction,RLdOutFw and RLdOutRv and the inner reactive boarder in forward and reversedirection X1InFw and X1InRv. See figure 14.The corresponding resistive border for the inner resistive boundary and outerresistive boundary is calculated automatically from the setting of kLdRFw andkLdRRv.The inner zone of ZMRPSB must cover all zones by at least 10% margin.The test is mainly divided into two parts, one which aim is to verify that thesettings are in accordance to the selectivity plan and a second part to verify theoperation of ZMRPSB. The proposed test points for validation of the settings arenumbered according to figure 14Test of the interactions or combinations that are not configured are not consideredin this instruction.Section 9 1MRK 506 383-UEN ATesting functionality by secondary injection78 Line distance protection REL650 2.2 IECCommissioning manual
