1MAC309294-MB F Section 5Control functionsRER620 341Technical Manualselected as the phase to which the voltage transformers is connected. The Vt line enableshould be TRUE to consider the settings Vt config line and Vt line phase. Table 311 clearlyexplains the phases selected with different possible selection of appropriate settings inSectionalizing recloser modes.In case of mid-point mode, the numbers of voltage transformers connected can be either 1or 3. So the Vt config line can be either “1” or “3”. The phase selection is similar as insectionalizer mode but Vt config line cannot be “2”.In case of tie-point mode the 3 phases of both sources are considered. Hence in tie-pointmode the Vt config line and Vt config load settings should be selected as “3” and Vt lineenable and Vt load enable should be selected as ‘TRUE”. That is tie-point recloser shouldalways have 3 voltage transformers connected to each source.In case of disabled mode no phase is considered.Table 311: Selection of phases in Sectionalizing recloser modeThe outputs S1_DISABLED and S2_DISABLED indicate whether the respective sourceis enabled or disabled. The output will be TRUE if respective source is disabled.The condition for any source to be enabled in sectionalizer or midpoint modes is therespective source should be selected as Line side source and Vt line enable should be“TRUE” and the respective source enable input should be triggered with a positive pulse.Line side src Vt config line Vt line phase Vt line enable Phases SelectedS1 3 Not valid TRUE S1_V_AS1_V_BS1_V_CS1 1 PhA TRUE S1_V_AS1 1 PhB TRUE S1_V_BS1 1 PhC TRUE S1_V_CS1 2 PhA TRUE S1_V_AS1_V_BS1 2 PhB TRUE S1_V_BS1_V_CS1 2 PhC TRUE S1_V_CS1_V_AS2 3 Not valid TRUE S2_V_AS2_V_BS2_V_CS2 1 PhA TRUE S2_V_AS2 1 PhB TRUE S2_V_BS2 1 PhC TRUE S2_V_CS2 2 PhA TRUE S2_V_AS2_V_BS2 2 PhB TRUE S2_V_BS2_V_CS2 2 PhC TRUE S2_V_CS2_V_A
