Alstom MiCOM P545 - 1.4.2 Circuit breaker control; 1.4.2.1 Circuit breaker control (P543;P545)

Settings P54x/EN ST/La4
MiCOM P543, P544, P545, P546
(ST) 4-69
ST
1.4.2 Circuit
The System Checks functionality differs between the P543/P545 and the P544/P546 since
the P543/P545 can only co k 546 ca rol two.
A y, therefore, th re different
1.4.2.1 C
T
for control of a single circuit breaker:
 tripping and clo e relay men

 the relay communications
breaker control
ntrol one circuit brea
e settings a
er, whereas the P544/P
for the two.
n cont
ccordingl
ircuit breaker control (P543/P545)
he rel
ay includes the following options
Local sing, via th u or hotkeys
Local tripping and closing, via relay opto-isolated inputs
Remote tripping and closing, using
Setting range
Menu text Default setting
Min. Max.
Step size
CB control by Disabled
Disabled, Local, Remote, Local + Remote,
Opto, Opto + local, Opto + Remote, Opto +
Remote + local
This Setting selects the type of circuit breaker control that be used in the logic
Close Pulse Time 0.5 s 0.1 s 10 s 0.01 s
Defines the duration of the close pulse.
Trip Pulse Time 0.5 s 0.1 s 5 s 0.01 s
Defines the duration of the trip pulse.
Man Close Delay 10 s 0.01 s 600 s 0.01 s
This defines the delay ti he close pume before t lse is executed.
CB Healthy Time 5 s 0.01 s 9999 s 0.01 s
A settable time delay included for manual closure with this circuit breaker check. If the
circuit breaker doe
command then the r
s not indicate a healthy condition in this time period following a close
elay will lockout and alarm.
Check Sync. Time 5 s 0.01 s 9999 s 0.01 s
A user settable time de ed for manu g. If the
e
rm.
lay is includ al closure with check synchronizin
check sync. criteria are not satisfied in this time period following a close command th
relay will lockout and ala
Lockout Reset No No, Yes
Displays if the Lockout c ndition has been reset. o
Reset Lockout By CB Close User Interface, CB Close
Setting that determines condition wif a lockout ill be reset by a manual circuit breaker close
command or via the user interface.
Man Close RstDly 5 s 0.1 s 600 s 0.01 s
The manual clo
manual close.
se time, time delay, that is used to reset a lockout automatically from a
Single Pole A/R Disabled
Disabled or Enabled
Enable or disable AR for single phase fault types.
setting also n auto-recl n 3 pole tripping Care: This applies whe ose is configured i
applications. Even though the trip m nly, the fact that the ode may be 3 pole o
initiation was a single phase fault type is memorized.
Three Pole A/R Disabled
Disabled or Enabled
Enable or disable AR for multi-phase faults.