100223 IBaseIIEQUATION1520 V5 EN-US (Equation 109)where:I2 is the maximal negative sequence current during normal operating conditions, plus a marginof 10...20%IBase is the base current for the function according to the settingGlobalBaseSel13.2.3.4 Zero sequence based M13683-43 v8The IED setting value 3U0> is given in percentage of the base voltage UBase. Thesetting of 3U0> should not be set lower than the value that is calculated accordingto equation 110.10030303 UBaseUUEQUATION1521 V4 EN-US (Equation 110)where:3U0 is the maximal zero sequence voltage during normal operation conditions, plus a margin of10...20%UBase is the base voltage for the function according to the settingGlobalBaseSelThe setting of the current limit 3I0< is done in percentage of IBase. The setting of3I0< must be higher than the normal unbalance current that might exist in thesystem. The setting can be calculated according to equation 111.3 03 0 100II IBase= ×<EQUATION2293 V3 EN-US (Equation 111)where:3I0< is the maximal zero sequence current during normal operating conditions, plus a margin of10...20%IBase is the base current for the function according to the settingGlobalBaseSel13.2.3.5 Delta U and delta I GUID-02336F26-98C0-419D-8759-45F5F12580DE v7Set the operation mode selector OpDUDI to On if the delta function shall be inoperation.1MRK 511 401-UEN A Section 13Secondary system supervisionBay control REC670 2.2 IEC 279Application manual
