Alstom MiCOM P545

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P54x/EN OP/La4 Operation

(OP) 5-206

MiCOM P543, P544, P545 & P546

 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

 If CB2 CS2 SlipCtrl setting is Enabled, the measured slip frequency between the line

VT and Bus1 VTs is less than the CB2 CS2 SlipFreqsetting;

AND

 The measured phase angle magnitude is decreasing;

AND

 If the CB2 CS2 Adaptive setting is Disabled, the measured phase angle magnitude is

less than the CB2 CS2 Angle setting;

If the CB2 CS2 Adaptive setting is Enabled, AND if the predicted phase angle when

CB2 closes (after CB2 Cl Time setting) is less than the CB2 CS2 Angle setting AND as

close as possible to zero AND still decreasing in magnitude.

Alstom MiCOM P545 - Page 380