Set value for parameter
"VoltageInput"
Comment
4
PosSeq
CVGAPC function will measure internally calculated positive
sequence voltage phasor
5
-NegSeq
CVGAPC function will measure internally calculated negative
sequence voltage phasor. This voltage phasor will be
intentionally rotated for 180° in order to enable easier settings
for the directional feature when used.
6
-3*ZeroSeq
CVGAPC function will measure internally calculated zero
sequence voltage phasor multiplied by factor 3. This voltage
phasor will be intentionally rotated for 180° in order to enable
easier settings for the directional feature when used.
7
MaxPh
CVGAPC function will measure voltage phasor of the phase
with maximum magnitude
8
MinPh
CVGAPC function will measure voltage phasor of the phase
with minimum magnitude
9
UnbalancePh
CVGAPC function will measure magnitude of unbalance
voltage, which is internally calculated as the algebraic
magnitude difference between the voltage phasor of the phase
with maximum magnitude and voltage phasor of the phase
with minimum magnitude. Phase angle will be set to 0° all the
time
10
phase1-phase2
CVGAPC function will measure the voltage phasor internally
calculated as the vector difference between the phase L1
voltage phasor and phase L2 voltage phasor (UL1-UL2)
11
phase2-phase3
CVGAPC function will measure the voltage phasor internally
calculated as the vector difference between the phase L2
voltage phasor and phase L3 voltage phasor (UL2-UL3)
12
phase3-phase1
CVGAPC function will measure the voltage phasor internally
calculated as the vector difference between the phase L3
voltage phasor and phase L1 voltage phasor (UL3-UL1)
13
MaxPh-Ph
CVGAPC function will measure ph-ph voltage phasor with the
maximum magnitude
14
MinPh-Ph
CVGAPC function will measure ph-ph voltage phasor with the
minimum magnitude
15
UnbalancePh-Ph
CVGAPC function will measure magnitude of unbalance
voltage, which is internally calculated as the algebraic
magnitude difference between the ph-ph voltage phasor with
maximum magnitude and ph-ph voltage phasor with minimum
magnitude. Phase angle will be set to 0° all the time
It is important to notice that the voltage selection from table
applicable regardless the actual external VT connections. The three-phase VT
inputs can be connected to IED as either three phase-to-earth voltages U
L1
, U
L2
&
U
L3
or three phase-to-phase voltages U
L1L2
, U
L2L3
& U
L3L1
VAB, VBC and VCA.
This information about actual VT connection is entered as a setting parameter for
the pre-processing block, which will then take automatically care about it.
Section 6
1MRK 511 423-UEN A
Multipurpose protection
76
Bay control REC650 2.2 IEC
Application manual
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