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CHAPTER 3: IEC 61850 COMMUNICATION MODEL IMPLEMENTATION CONFORMANCE STATEMENT (MICS)
UR FAMILY – COMMUNICATIONS GUIDE 3-77
3
Table 3-72: Neutral current unbalance stage objects
3.5.2.43 Neutral directional overcurrent (NeuDoc)
This element is instantiated in the following products: C70, D30, D60, F60, G30, G60, L30, L60, L90, M60, N60, T60.
Table 3-73: Neutral directional overcurrent data objects
CompAop MV Comp Iop in per unit R
instMag AnalogueValue MX R
instMag.f FLOAT32 Comp Iop R
mag AnalogueValue MX R
mag.f FLOAT32 instMag.f deadbanded
exception
R
units Unit CF R
units.SIUnit ENUMERATED 1, the code for dimensionless (per unit) R
units.multiplier ENUMERATED 0, the code for a multiplier of 1 R
db INT32 CF NeAUnPTOC#.CompAop.db R/W/C
zeroDb INT32 CF 0 R
LNName: NeAUn$PTOC# LDevice inst: Prot UR element: Neutral Current Unbalance element # Stage$
data obj. data attribute Type FC UR Name Description R/W/C
Str ACD NTRL CUR # STG$ PKP operands. R
general BOOLEAN ST NTRL CUR # STG$ PKP R
dirGeneral ENUMERATED ST 0, the code for unknown. R
Op ACT NTRL CUR # STG$ OP operands R
general BOOLEAN ST NTRL CUR # STG$ OP R
BlkRefγ ORG NTRL CUR # BLK STG$ setting for setting
group γ.
R
setSrcRef ObjectReference SP NTRL CUR # BLK STG$ for group
γ (where $ refers to STAGE 1, 2, 3,
4)
reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
LNName: NeuDocRDIR# LDevice inst: Prot UR element: Neutral Directional Overcurrent element #
data obj. data attribute Type FC UR Name Description R/W/C
Dir ACD NTRL DIR OC# FWD or NTRL DIR OC# REV
operands, which becomes On when
neutral directional overcurrent is flowing
in either forward or reverse direction
respectively
R
general BOOLEAN ST logical OR of operands NTRL DIR
OC# FWD and NTRL DIR OC#
REV
R
dirGeneral ENUMERATED ST 1 for forward 2 for backward 0 for none 3
for both
R
FwdOp SPS NTRL DIR OC# FWD operand R
stVal BOOLEAN ST NTRL DIR OC# FWD R
RvOp SPS NTRL DIR OC# REV operand R
stVal BOOLEAN ST NTRL DIR OC# REV R
BlkRefγ ORG NEUTRAL DIR OC# BLOCK setting for
setting group γ.
R
setSrcRef ObjectReference SP NEUTRAL DIR OC# BLOCK for
group γ.
reference to the data attribute to input R/C
setSrcCB ObjectReference SP source GoCB of input if via GOOSE R/C
LNName: NeAUnPTOC# LDevice inst: Prot UR element: Neutral Current Unbalance element #
data obj. data attribute Type FC UR Name Description R/W/C