Commissioning P54x/EN CM/La4
MiCOM P543, P544, P545 & P546
CM) 10-27
CM
Note: If a PC connected to the relay via the rear communications port is
being used to display the measured voltage, the process will be
similar. However, the setting of cell [0D03: MEASURE’T SETUP,
Remote Values] will determine whether the displayed values are in
primary or secondary Volts.
The measurement accuracy of the relay is ±1%. However, an additional allowance must be
made for the accuracy of the test equipment being used.
Cell in MEASUREMENTS 1 column (02)
Corresponding CT ratio (in ‘CT and VT
RATIOS‘ column (0A) of menu)
[021A: VAN Magnitude]
[021C: VBN Magnitude]
[021E: VCN Magnitude]
[0A01 : Main VT Primary]
[0A02 : Main VT Secondary]
[022E: Voltage Mag]
[0A03 : C/S VT Primary]
[0A04 : C/S VT Secondary]
[024C: CB2 CS Volt Mag] (P544 & P546
only)
[0A05 : CB2 CS VT Prim’y]
[0A06 : CB2 CS VT Sec’y]
Table 10: Voltage ratio settings
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