Alstom MiCOM P54 Series - Page 153

Settings P54x/EN ST/La4
MiCOM P543, P544, P545, P546
(ST) 4-75
ST
Setting range
Menu text Default setting Step size
Min. Max.
C/S VT Primary 110.0 V 100 V 1000 kV 1
Sets the check sync. voltage transformer input primary voltage.
C/S VT Secondary 110.0 V 80 V 140 V 1
Sets the check sync. voltage transformer input secondary voltage.
Phase CT Primary 1.000 A 1 A 30 kA 1
Sets the phase current transformer input primary current rating.
Phase CT Sec’y 1 A 1 A 5 A 4
Sets the phase current transformer input secondary current rating.
SEF CT Primary 1.000 A 1 A 30 kA 1
Sets the sensitive earth fault current transformer input primary current rating.
SEF CT Secondary 1 A 1 A 5 A 4
Sets the sensitive earth er input secondary current rating. fault current transform
MComp CT Primary 1.000 A 1 30 k 1
Sets the primary current rating of the neutral transformer that is located on the parallel line.
MComp CT
Secondary
1 A 1 A 5 A 4
Sets the secondary current rating of the neutral transformer that is located on the parallel
line.
C/S Input A-N
A-N, B-N, C-N, A-B, B-C,
C-A, A-N/1.732, B-N/1.732,
C-N/1.732
N/A
Selects the check sync. Input voltage measurement.
Main VT Location Line Line, Bus N/A
Selects the main voltage transformer location.
CT Polarity Standard Standard or Inverted
To invert polarity (180 °) of the CT
SEF CT Polarity Standard Standard or Inverted
To invert polar T ity (180 °) of the SEF C
M CT Polarity Standard Standard or Inverted
T p lo invert o arity (180 °) of the M CT
V cTs Conne ted Yes Yes or No
To indicate if voltage transformers connected to the relay. This MUST are be set properly
d log works correctly. If set to ‘No’, it will set VTS Slow Block and
s, but will not raise any alarms. It will also override the VTS enabled
to ensure Pole Dea
VTS Fast Block DDB
ic
setting should the user set it. If set to ‘Yes’ this setting will have no effect.