Function IEC 61850 IEC ANSIDirectional earth-fault protection, low stage,instance 1DEFLPDEF1 I0> → (1) 67N-1 (1)Directional earth-fault protection, low stage,instance 2DEFLPDEF2 I0> → (2) 67N-1 (2)Directional earth-fault protection, high stage DEFHPDEF1 I0>> → 67N-2Transient/intermittent earth-fault protection INTRPTEF1 I0> → IEF 67NIEFNon-directional earth-fault protection, highstage, calculated I0 current (Double earth-faultprotection)EFHPTOC1 I0>> 51N-2Negative-sequence overcurrent protection,instance 1NSPTOC1 I2> (1) 46 (1)Negative-sequence overcurrent protection,instance 2NSPTOC2 I2> (2) 46 (2)Phase discontinuity PDNSPTOC1 I2/I1> 46PDThree-phase inrush detector INRPHAR1 3I2f> 68Three-phase undervoltage protection PHTUV1PHTUV2PHTUV33U< (1)3U< (2)3U< (3)27 (1)27 (2)27 (3)Three-phase overvoltage protection PHTOV1PHTOV2PHTOV33U> (1)3U> (2)3U> (3)59 (1)59 (2)59 (3)Residual overvoltage protection ROVPTOV1ROVPTOV2ROVPTOV3U0> (1)U0> (2)U0> (3)59G (1)59G (2)59G (3)Positive-sequence undervoltage protection PSPTUV U1< 47U+Negative-sequence overvoltage protection NSPTOV U2> 47O-Three-phase thermal protection for feeders,cables and distribution transformersT1PTTR1 3Ith> 49FAutoreclosure DARREC1 O → I 79Circuit breaker failure protection CCBRBRF1 3I>/I0>BF 51BF/51NBFMaster Trip TRPPTRC1TRPPTRC2Master trip (1)Master trip (2)94/86 (1)94/86 (2)Trip circuit supervision, instance 1 TCSSCBR1 TCS (1) TCM (1)Trip circuit supervision, instance 2 TCSSCBR2 TCS (2) TCM (2)Disturbance recorder RDRE1 - -Circuit breaker condition monitoring SSCBR1 CBCM CBCMThree-phase current measurement CMMXU1 3I 3ISequence current measurement CSMSQI1 I1, I2, I0 I1, I2, I0Residual current measurement RESCMMXU1 I0 InResidual voltage measurement RESVMMXU1 U0 VnThree-phase voltage measurement VMMXU1 3U 3UVoltage sequence components measurement VSMSQI1 U1, U2, U0 U1, U2, U0Power and energy measurement PEMMXU1 P, E P, ESection 3 1MRS756378 DREF615 variants94 REF615Application Manual