R.8.20
SEL-421 Relay Reference Manual Date Code 20111215
IEC 61850 Communications
Logical Nodes
Tab le 8.9 shows the LNs associated with measuring elements, defined as
Logical Device MET.
Table 8.9 Logical Device: MET (Metering) (Sheet 1 of 2)
Logical Node
(All ICD Versions)
Measurand Comment
METMMXU1 TotW.mag P, Total real power
METMMXU1 TotVAr.mag Q, Total reactive power
METMMXU1 TotVA.mag S, Total apparent power
METMMXU1 TotPF.mag PF, Three-phase power factor
METMMXU1 Hz.mag FREQ, System frequency
METMMXU1 PhV.phsA.cVal.mag VA, Phase A voltage magnitude
METMMXU1 PhV.phsA.cVal.ang VA, Phase A voltage angle
METMMXU1 PhV.phsB.cVal.mag VB, Phase A voltage magnitude
METMMXU1 PhV.phsB.cVal.ang VB, Phase A voltage angle
METMMXU1 PhV.phsC.cVal.mag VC, Phase A voltage magnitude
METMMXU1 PhV.phsC.cVal.ang VC, Phase A voltage angle
METMMXU1 A1.phsA.cVal.mag IA1, Line phase A current magnitude
METMMXU1 A1.phsA.cVal.ang IA1, Line phase A-phase current angle
METMMXU1 A1.phsB.cVal.mag IB1, Line phase B current magnitude
METMMXU1 A1.phsB.cVal.ang IB1, Line phase B-phase current angle
METMMXU1 A1.phsC.cVal.mag IC1, Line phase C current magnitude
METMMXU1 A1.phsC.cVal.ang IC1, Line phase C-phase current angle
METMMXU1 A2.phsA.cVal.mag IA2, Breaker 1 A-phase current magnitude
METMMXU1 A2.phsA.cVal.ang IA2, Breaker 1 A-phase current angle
METMMXU1 A2.phsB.cVal.mag IB2, Breaker 1 B-phase current magnitude
METMMXU1 A2.phsB.cVal.ang IB2, Breaker 1 B-phase current angle
METMMXU1 A2.phsC.cVal.mag IC2, Breaker 1 C-phase current magnitude
METMMXU1 A2.phsC.cVal.ang IC2, Breaker 1 C-phase current angle
METMMXU1 A3.phsA.cVal.mag IA3, Breaker 2 A-phase current magnitude
METMMXU1 A3.phsA.cVal.ang IA3, Breaker 2 A-phase current angle
METMMXU1 A3.phsB.cVal.mag IB3, Breaker 2 B-phase current magnitude
METMMXU1 A3.phsB.cVal.ang IB3, Breaker 2 B-phase current angle
METMMXU1 A3.phsC.cVal.mag IC3, Breaker 2 C-phase current magnitude
METMMXU1 A3.phsC.cVal.ang IC3, Breaker 2 C-phase current angle
SEQMSQI1 SeqA.c1.cVal.mag I1_1, Line positive-sequence current mag-
nitude
SEQMSQI1 SeqA.c1.cVal.ang I1_1, Line positive-sequence current angle
SEQMSQI1 SeqA.c2.cVal.mag I2_1, Line negative-sequence current mag-
nitude
SEQMSQI1 SeqA.c2.cVal.ang I2_1, Line negative-sequence current angle
SEQMSQI1 SeqA.c3.cVal.mag I0_1, Line zero-sequence current magni-
tude
SEQMSQI1 SeqA.c3.cVal.ang I0_1, Line zero-sequence current angle
SEQMSQI1 SeqV.c1.cVal.mag V1, Positive-sequence voltage magnitude