Settings - ABB Relion Technical Manual

1MRK 502 048-UUS A
8.8.5
Table 137: AEGGAPC (50AE) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
I> 5 - 900
tOC 0.000 - 60.000
ArmU< 2 - 150
tArm 0.000 - 60.000
DisarmU> 2 - 200
tDisarm 0.000 - 60.000
Table 138: AEGGAPC (50AE) Non group settings (basic)
Name Values (Range)
GlobalBaseSel 1 - 6
8.8.6
8.8.7
Technical manual

Settings

Unit Step
- -
%IB 1
s 0.001
%VB 1
s 0.001
%VB 1
s 0.001
Unit Step
- 1
Monitored data
Table 139: AEGGAPC (50AE) Monitored data
Name Type
IMAX REAL
UMAX REAL
Operation principle
Accidental energizing protection for synchronous generator AEGGAPC (50AE) function
is connected to three phase current input either from the generator terminal side or from
generator neutral point side and three phase voltage from the generator terminals. The
maximum of the three phase-to-phase voltages and maximum of the three phase currents
are measured.
When the maximum phase-to-phase voltage is less than the 27_pick_up for the period
tArm, it is ensured that the generator is off-line. The Enabled signal will initiate the arming
and enable the overcurrent function. If the calculated maximum current of the three phases
Default Description
Disabled Disable/Enable Operation
120 Phase current pickup in % of IBase
0.030 Trip time daly for overcurrent level
50 Undervoltage level to arm protection in % of
Vbase
5.000 Time delay to arm protection with undervoltage
pickup
80 Over voltage level to disarm protection in % of
Vbase
0.500 Time delay to disarm protection when voltage
greater than drop out level
Default Description
1 Selection of one of the Global Base Value
Groups
Values (Range) Unit
- A
- kV
Section 8
Current protection
Description
Maximum value of current
Maximum value of phase to
phase voltage
263