ABB RELION 670 Series Technical Manual page 552

Section 8
Current protection
Table 280: GUPPDUP (37) Non group settings (basic)
Name Values (Range)
GlobalBaseSel 1 - 12
Mode A, B, C
Arone
Pos Seq
AB
BC
CA
A
B
C
8.11.6 Monitored data
Table 281: GUPPDUP (37) Monitored data
Name
P
PPERCENT
Q
QPERCENT
8.11.7 Operation principle
A simplified scheme showing the principle of the power protection function is shown in figure 290.
The function has two stages with individual settings.
Chosen current
phasors
Chosen voltage
phasors
ANSI06000438 V2 EN-US
Figure 290: Simplified logic diagram of the power protection function
546
Unit Step
- 1
- -
Type Values (Range)
REAL -
REAL -
REAL -
REAL -
P
Complex Derivation of
S( composant)
power
in Char angle
calculation
Q
Default Description
1 Selection of one of the Global Base Value
groups
Pos Seq Selection of measured current and voltage
Unit Description
MW Active Power in MW
% Active power in % of SBase
MVAr Reactive power in MVAr
% Reactive power in % of SBase
S( angle)
S( angle ) <
Power1
S( angle ) <
Power2
1MRK 502 066-UUS B
PID-3709-MONITOREDDATA v4
SEMOD172136-4 v4
t TRIP 1
0
PICKUP1
t TRIP2
0
PICKUP2
P = POWRE
Q = POWIM
ANSI06000438-2-en.vsd
Technical manual