Alstom MiCOM P54 Series - Page 379

Operation P54x/EN OP/La4
MiCOM P543, P544, P545 & P546 (OP) 5-205
OP
When the check synchronism criteria is satisfied, a DDB signal “CBx CSy OK” is set (x = 1 or
2, y = 1 or 2).
For CB1 CS1 OK DDB (883) to be set, the following conditions are necessary:
 Settings Sys Checks CB1 and CB1 CS1 Status must both be Enabled;
AND
 Live Line and Live Bus 1 signals are both set;
AND
 None of the selected CB1 CS1 Volt. Blk conditions (V<, V>, VDiff) are true;
AND
 The measured phase angle magnitude is less than the CB1 CS1 Angle setting;
AND
 If CB1 CS1 SlipCtrl setting is Enabled, the measured slip frequency between the line VT
and Bus1 VT is less than the CB1 CS1 SlipFreq setting.
For signal CB1 CS2 OK DDB (884) to be set, the following conditions are necessary:
 Settings Sys Checks CB1 and CB1 CS2 Status must both be Enabled;
AND
 Live Line and Live Bus 1 signals are both set;
AND
 None of the selected CB1 CS1 Volt. Blk conditions (V<, V>, VDiff) are true;
AND
 If CB1 CS2 SlipCtrl setting is Enabled, the measured slip frequency between the line
VT and Bus1 VTs is less than the CB1 CS2 SlipFreq setting;
AND
 The measured phase angle magnitude is decreasing;
AND
 If the CB1 CS2 Adaptive setting is Disabled, the measured phase angle magnitude is
less than the CB1 CS2 Angle setting;
OR
If the CB1 CS2 Adaptive setting is Enabled, AND if the predicted phase angle when
CB1 closes (after CB1 Cl Time setting) is less than the CB1 CS2 Angle setting AND as
close as possible to zero AND still decreasing in magnitude.
For CB2 CS1 OK DDB (1577) to be set, the following conditions are necessary:
 Settings Sys Checks CB2 and CB2 CS1 Status must both be En
abled;
AND
 Live Line and Live Bus 2 signals are both set;
AND
 None of the selected CB2 CS1 Volt. Blk conditions (V<, V>, VDiff) are true;
AND
 The measured phase angle magnitude is less than the CB2 CS1 Angle setting;
AND
 If CB2 CS1 SlipCtrl setting is Enabled, the measured slip frequency between the line VT
and Bus1 VT is less than the CB2 CS1 SlipFreq setting.
For signal CB2 CS2 OK DDB (1463) to be set, the following conditions are necessary:
 Settings Sys Checks CB2 and CB2 CS2 Status must both be Enabled;
AND