Schweitzer Engineering Laboratories SEL-751 - Table F.21 Logical Device: MET (Metering)

F.31
Date Code 20170927 Instruction Manual SEL-751 Relay
IEC 61850 Communications
Logical Nodes
Table F.21 shows the LN associated with measuring elements defined as
Logical Device MET.
TRIPPTRC1 Tr.general TRIP Trip logic output
UGFRDIR1 Dir.general UGFWD Zero-sequence voltage polarized forward direction detected
ungrounded/high Z control U
UGFRDIR1 Dir.dirGeneral UGFWD?0:1 Zero-sequence voltage polarized forward direction detected
ungrounded/high Z control U, direction (UGFWD = false, direction
unknown; UGFWD = true, direction forward)
UGRRDIR1 Dir.general UGREV Zero-sequence voltage polarized reverse direction detected
ungrounded/high Z control U
UGRRDIR1 Dir.dirGeneral UGREV?0:2 Zero-sequence voltage polarized reverse direction detected
ungrounded/high Z control U, direction (UGREV = false, direction
unknown; UGREV = true, direction reverse)
a
MX values contain instantaneous attributes (instMag and instCVal), which are updated whenever the source updates, and other attributes
that are only updated when the source goes outside the data source’s deadband (mag and cVal). Only instantaneous values are shown in
the table.
b
Valid data depends on HIF firmware option and EHIF setting.
c
Valid data depends on the installed arc-flash card.
Table F.20 Logical Device: PRO (Protection) (Sheet 13 of 13)
Logical Node Attribute Data Source Comment
Table F.21 Logical Device: MET (Metering) (Sheet 1 of 5)
Logical Node Attribute Data Source Comment
Functional Constraint = DC
DevIDLPHD1 PhyNam.model PARTNO Part number
Functional Constraint = MX
a b
DCZBAT1 Vol.instMag.f VDC Station dc battery voltage
METMDST1 DmdA.nseq.instCVal.mag.f 3I2D Negative-sequence current demand
METMDST1 DmdA.phsA.instCVal.mag.f IAD A-phase current demand
METMDST1 DmdA.phsB.instCVal.mag.f IBD B-phase current demand
METMDST1 DmdA.phsC.instCVal.mag.f ICD C-phase current demand
METMDST1 DmdA.res.instCVal.mag.f IGD Residual current demand
METMDST1 DmdVArh.actVal MVARH3PO Three-phase reactive energy OUT
METMDST1 DmdWh.actVal MWH3P Three-phase real energy OUT
METMDST1 PkDmdA.nseq.instCVal.mag.f 3I2PD Negative-sequence current peak demand
METMDST1 PkDmdA.phsA.instCVal.mag.f IAPD A-phase current peak demand
METMDST1 PkDmdA.phsB.instCVal.mag.f IBPD B-phase current peak demand
METMDST1 PkDmdA.phsC.instCVal.mag.f ICPD C-phase current peak demand
METMDST1 PkDmdA.res.instCVal.mag.f IGPD Residual current peak demand
METMDST1 SupVArh.actVal MVARH3PI Reactive energy, three-phase IN
METMDST1 SupWh.actVal MWH3PI Three-phase real energy IN
METMMXU1 A.phsA.instCVal.ang.f IA_ANG Current, A-phase, angle