V0I0 AND V2I2 which gives that both negative and zero sequence algorithms are activated andworking in an AND-condition, that is, both algorithms must give condition for block in order toactivate the output signals BLKV or BLKZ.13.2.3.3 Negative sequence based M13683-17 v9The relay setting value3V2PU is given in percentage of the base voltageVBase and should not beset lower than the value that is calculated according to equation 98.1003223 VBaseVPUVEQUATION1757-ANSI V4 EN-US (Equation 98)where:V2PU is the maximal negative sequence voltage during normal operation conditions, plus a margin of 10...20%VBase is the base voltage for the function according to the settingGlobalBaseSelThe setting of the current limit3I2PU is in percentage of parameterIBase. The setting of3I2PUmust be higher than the normal unbalance current that might exist in the system and can becalculated according to equation 99.100223 IBaseIPUIEQUATION1758-ANSI V4 EN-US (Equation 99)where:I2 is the maximal negative sequence current during normal operating conditions, plus a margin of 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 value3V0PU is given in percentage of the base voltageVBase. The setting of3V0PU should not be set lower than the value that is calculated according to equation 100.10030303 VBaseVPUVEQUATION1759-ANSI V4 EN-US (Equation 100)where:3V0 is the maximal zero sequence voltage during normal operation conditions, plus a margin of 10...20%VBase is the base voltage for the function according to the settingGlobalBaseSelSection 13 1MRK 511 364-UUS ASecondary system supervision188Application manual
