P54x/EN ST/La4 Settings
(ST) 4-4
MiCOM P543, P544, P545, P546
ST
Menu text Default setting Available settings
Copy to No Operation
No Operation
Group 1, 2, 3 or 4
Allows displayed settings to be lected setting gr ). copied to a se oup (ready to paste
Setting Group 1 Enabled Enabled or Disabled
If the setting group is disable e configuration, then gs and d from th all associated settin
signals are hidden, with the exception of this setting (paste).
Setting Group 2 (as above) Disabled Enabled or Disabled
Setting Group 3 (as above) Disabled Enabled or Disabled
Setting Group 4 (as above) Disabled Enabled or Disabled
Distance Enabled Enabled or Disabled
Only in models with Distance o enable (activate) or d stance ption. To isable (turn off) the Di
Protection: ANSI 21P/21G.
Directional E/F Enabled Enabled or Disabled
Only in models with Distance o enable (activate) or d
This
ption. To isable (turn off) the
Directional Earth Fault (DEF) Protection used in a pilot aided scheme: ANSI 67N.
protection is independent from back up Earth fault protection described below.
Phase Diff Enabled Enabled or Disabled
To enable (activate) or disable (turn off) the Differential Protec ntial
.
tion. To get the differe
protection fully active, it is necessary also to enable the differential protection in the group
Note that Phase Diff setting and InterMiCOM
64
Fiber setting are mutually exclusive as with
Phase Diff enabled, the digital message exchanged has the structure of the differential
message (i.e. currents are sent to the remote end, etc) and with InterMiCOM
64
Fiber the
digital message exchanged has the structure and properties of the InterMiCOM
64
Fiber.
Overcurrent Enabled Enabled or Disabled
To enable (activate) or disable (turn off) the Phase Overcurre I> nt Protection function.
stages: ANSI 50/51/67P.
Neg. Sequence O/C Disabled Enabled or Disabled
To enable (activate) or disable gative Sequen tion (turn off) the Ne ce Overcurrent Protec
function.
I2> stages: ANSI 46/67.
Broken Conductor Disabled Enabled or Disabled
To enable (activate) or disable he Broken Conducto (turn off) t r function.
I2/I1> stage: ANSI 46BC.
Earth Fault Disabled Enabled or Disabled
To enable (activate) or disable (turn off) the back up Earth Fa ult Protection function.
IN >stages: ANSI 50/51/67N.
Sensitive E/F Disabled Enabled or Disabled
To enable (activate) or disable (turn off) the Sensitive Earth F . ault Protection function
ISEF >stages: ANSI 50/51/67N.
Residual O/V NVD Disabled Enabled or Disabled
To enable (activate) or disable (turn off) the Residual Overvol n. tage Protection functio
VN>stages: ANSI 59N.
Thermal Overload Disabled Enabled or Disabled
To enable (activate) or disable rmal Overload (turn off) the The Protection function.
ANSI 49.