ABB REL670 2.2 IEC - Setting Guidelines

TRUE
Bool to
Integer
ZREL
L3L1
L2L3
L1L2
L3N
L2N
L1N
TRUE
TRUE
RELCNDZ1
bitwise
AND
relcndphs
enable
TRZ1
Zone1
Phase
selection
bitwise
AND
enable
Zone2
RELCNDZ2
RELCNDZ4
Zone5
ZMFPDISPPL2PHIZ
Phase
preference
L1N
L2N
L3N
enable
TRZRV
bitwise
AND
enable
bitwise
AND
enable
TRZ4
bitwise
AND
enable
TRZ5
bitwise
AND
Zone3
Zone4
ZoneRV
RELCNDZ3
RELCNDZ5
RELCNDZRV
IEC16000017-1-en.vsdx
IEC16000017 V1 EN-US
Figure 248: The connection of Phase preference logic function
8.20.3 Setting guidelines
GUID-01929A71-DFDA-4321-88C4-B3CDD7581F8C v1
The parameters for the Phase preference logic function PPL2PHIZ are set via the
local HMI or PCM600.
GlobalBaseSel: Selects the global base value group used by the function to define
IBase, UBase and SBase as applicable.
OperMode: The operating mode is selected. Choices includes cyclic or acyclic
phase selection in the preferred mode. This setting must be identical for all IEDs in
the same galvanic connected network part.
UPN<: The setting of the phase-to- earth voltage level (phase voltage) which is
used by the evaluation logic to verify that a fault exists in the phase. Normally in a
high impedance earthed system, the voltage drop is big and the setting can typically
be set to 70%, which is 70% of UBase divided by √3.
UPP<: The setting of the phase-to-phase voltage level (line voltage) which is used
by the evaluation logic to verify that a fault exists in two or more phases. The
voltage must be set to avoid that a partly healthy phase-to-phase voltage, for
example, L2-L3 for a L1-L2 fault, picks-up and gives an incorrect release of all
loops. The setting value should therefore not, without special reasons, be set higher
than 50% (of UBase), which corresponds to 85% of the minimum voltage for the
partly healthy loops (i.e. 85% of UBase divided by √3).
3U0>: The setting of the residual voltage level (neutral voltage) which is used by
the evaluation logic to verify that an earth-fault exists. The setting can typically be
20% of base voltage (UBase).
1MRK 506 369-UEN B Section 8
Impedance protection
Line distance protection REL670 2.2 IEC 453
Application manual