Alstom MiCOM P546 - 1.3.20.2 System checks (check sync. function) (P544;P546)

Settings P54x/EN ST/La4
MiCOM P543, P544, P545, P546
(ST) 4-51
ST
Setting range
Menu text Default setting
Min. Max.
Step size
CS Overvoltage 130 V 60 V 185 V 0.5 V
Sets an overvoltage threshold above below which the line and bus voltage must be to
if selected in the ‘CS Voltage Block’ cell. satisfy the Check Sync. condition
CS Diff. Voltage 6.5 V 1 V 132 V 0.5 V
Sets the voltage magni
and bus voltage d
tude threshold between lts below that the line
ifference must be to satisfy the Check Sync. condition if selected in the
the line and bus vo
‘CS Voltage Block’ cell.
CS Voltage Block V<
V</V>/Vdiff.>/V< and V>/V< and Vdiff>/
V> and Vdiff>/V< V> and Vdiff>/None
Selects whether an undervoltage, ove
line and bus voltages must be satisf
rvoltage and voltage difference thresholds for the
ied in order for the Check Sync. conditions to be
satisfied.
SYSTEM SPLIT
SS Status Enabled Enabled or Disabled
Setting to enable or disable the system split function - to detect a line and bus which are
not possible to synchronize.
SS Phase Angle 120° 90° 175° 1°
Sets the maximum phase angle difference between the line and bus voltage, which must
be exceeded, for the System Split condition to be satisfied.
SS Under V Block Enabled Enabled or Disabled
Activates and undervoltage block criteria.
SS Undervoltage 54 V 10 V 132 V 0.5 V
Sets an undervoltage threshold above which the line and bus voltage must be to satisfy
the System Split condition.
SS Timer 1 s 0 s 99 0.01 s
The System Split output remains set for as long as ystem Sp ria are true, or for
ual to the System Split Timer setting, whichever is longer.
the S lit crite
a minimum period eq
1.3.20.2 S eck sync. function) (P544/P546)
T /P546 o stage Chec nction that can be set
i
Setting
ystem checks (ch
he MiCOM P544 has a tw k Synchronization fu
ndependently for each circuit breaker.
range
Menu text Default setting
Min. Max.
Step size
VOLTAGE MONITORS
Live Line 32 V
5 V 132 V 0.5 V
Line is considered Live with voltage above this setting.
Dead Line 13 V
5 V 132 V
0.5 V
Line is considered Dead with voltage below this setting.
Live Bus 1 32 V
5 V 132 V 0.5 V
Bus 1 is considered Liv ve the with voltage abo is setting.
Dead Bus 1 1 3 V
5 V 132 V 0.5 V
Bus 1 is considered Dead with voltage below this setting.