ABB Relion RES670, Technical Manual

Page: 343 / 934

Set value for the
parameter
CurrentInput
Comment
11 PhaseB-PhaseC 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
B
-I
C
)
12 PhaseC-PhaseA 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
C
-I
A
)
13 MaxPh-Ph CVGAPC function will measure ph-ph current phasor with the maximum
magnitude
14 MinPh-Ph CVGAPC function will measure ph-ph current phasor with the minimum
magnitude
15 UnbalancePh-Ph 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
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
Comment
1 PhaseA CVGAPC function will measure the phase A voltage phasor
2 PhaseB CVGAPC function will measure the phase B voltage phasor
3 PhaseC CVGAPC function will measure the phase C voltage phasor
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 -3ZeroSeq 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
Table continues on next page
1MRK 511 408-UUS A
Section 11
Multipurpose protection
Phasor measurement unit RES670 2.2 ANSI 337
Technical manual