1003223 UBaseUUEQUATION1519 V5 EN-US (Equation 155)where:U2 is the maximal negative 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 limit3I2< is in percentage of parameterIBase. The setting of3I2<must be higher than the normal unbalance current that might exist in the system and can becalculated according to equation 156.100223 IBaseIIEQUATION1520 V5 EN-US (Equation 156)where:I2 is the maximal negative sequence current during normal operating conditions, plus a margin of10...20%IBase is the base current for the function according to the settingGlobalBaseSel11.2.3.4 Zero sequence based M13683-43 v8The IED setting value3U0> is given in percentage of the base voltageUBase. The setting of3U0> should not be set lower than the value that is calculated according to equation 157.10030303 UBaseUUEQUATION1521 V4 EN-US (Equation 157)where:3U0 is the maximal zero sequence voltage during normal operation conditions, plus a margin of 10...20%UBase is the base voltage for the function according to the settingGlobalBaseSelThe setting of the current limit3I0< is done in percentage ofIBase. The setting of3I0< mustbe higher than the normal unbalance current that might exist in the system. The setting can becalculated according to equation 158.3 03 0 100II IBase= ×<EQUATION2293 V3 EN-US (Equation 158)where:3I0< is the maximal zero sequence current during normal operating conditions, plus a margin of 10...20%IBase is the base current for the function according to the settingGlobalBaseSelSection 11 1MRK 505 363-UEN ASecondary system supervision202Application manual
