ABB RES670 Technical Manual page 343

1MRK 511 408-UUS A
Phasor measurement unit RES670 2.2 ANSI
Technical manual
Set value for the
parameter
CurrentInput
11 PhaseB-PhaseC
12 PhaseC-PhaseA
13 MaxPh-Ph
14 MinPh-Ph
15 UnbalancePh-Ph
The user can select to measure one of the voltage quantities shown in table 190:
Table 190: Voltage selection for CVGAPC function
Set value for the
parameter
VoltageInput
1 PhaseA
2 PhaseB
3 PhaseC
4 PosSeq
5 -NegSeq
6 -3ZeroSeq
7 MaxPh
8 MinPh
9 UnbalancePh
Table continues on next page
Comment
CVGAPC function will measure the current phasor internally calculated as
the vector difference between the phase B current phasor and phase C
current phasor (I -I )
B C
CVGAPC function will measure the current phasor internally calculated as
the vector difference between the phase C current phasor and phase A
current phasor ( I -I )
C A
CVGAPC function will measure ph-ph current phasor with the maximum
magnitude
CVGAPC function will measure ph-ph current phasor with the minimum
magnitude
CVGAPC function will measure magnitude of unbalance current, which is
internally calculated as the algebraic magnitude difference between the ph-
ph current phasor with maximum magnitude and ph-ph current phasor with
minimum magnitude. Phase angle will be set to 0° all the time
Comment
CVGAPC function will measure the phase A voltage phasor
CVGAPC function will measure the phase B voltage phasor
CVGAPC function will measure the phase C voltage phasor
CVGAPC function will measure internally calculated positive sequence
voltage phasor
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.
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.
CVGAPC function will measure voltage phasor of the phase with maximum
magnitude
CVGAPC function will measure voltage phasor of the phase with minimum
magnitude
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
Section 11
Multipurpose protection
337