Alstom MiCOM P545 - 4.6 Circuit breaker control (P543;P545)

P54x/EN OP/La4 Operation
(OP) 5-162 MiCOM P543, P544, P545 & P546
OP
DDB CB Monitor alarm (299)
DDB CB lockout alarm (300)
NOTE : CB MAINTENANCE DATA SHALL NOT BE INCREMENTED IF THE RELAY IS IN TEST
MOSE
DDB CB Ops Maint (1108)
DDB CB Ops Lock (1109)
DDB CB Time Maint (1110)
DDB Reset Lockout (446)
INTSIG CB Failed to Trip
DDB A/R Lockout (306)
INTSIG Control CB Unhealthy
INTSIG Control no Check Synch
SET: CB Control
Reset Lockout
DDB CB Open 3ph (903)
Opto Input DDB Reset CB data (447)
Command :
Clear Alarms
DDB External Trip3ph (534)
DDB Trip 3ph (526)
Command :
Reset CB Data
DDB I^ Maintenance Alarm (1106)
DDB I^ Lockout Alarm (1107)
DDB CB Closed 3ph
(907)
INTSIG CB Failed to Close
S
R
Q
S
R
Q
Command: :
Lockout Reset
Command:
Clear Alarms
Yes
SET: CB Control/
Man Close Rst Dly
0
CB Close
User Interface
Quiescent State
Quiescent State
No Operation
Clear
No
t
Reset
Lockout
Phase C Circuit Breaker Operation Time
Phase A Circuit Breaker Operation Time
Phase B Circuit Breaker Operation Time
Reset
Reset
Reset
Select
Greatest
0
Reset
Excessive Fault
Frequency Counter
Increment
Excessive Fault
Frequency Counter
Select
Maximum
Phase B Broken Current
Phase C Broken Current
Phase A Broken Current
Quiescent State
Quiescent State
No
Yes
Reset
Reset
Reset
Select
Greatest
Disable
SET: CB Time
Maintenance Alarm
Disable
SET CB Time
Lockout Alarm
>CB Time Lockout
Setting
Enable
>CB Time
Maintenance
Setting
SET: No CB Ops
Lock Alarm
Disable
SET: Fault Freq
Lock Alarm
Enable
> Fault Freq Count
Setting Minus 1
> Fault Freq
Count Setting
Enable
> No CB Ops Lock
Setting Minus 1
Disable
> No CB Ops Lock
Setting
> I^ lockout Alarm
> No CB Ops
Maintenance Setting
Enable
Disable
Enable
SET: No CB Ops
Maintenance Alarm
SET: I^ Maintenance
Alarm
Disable
Enable
Disable
Enable
> I^ Maintenance
Setting
> I^ Lockout
Setting
Set
Dominant
Yes
No
1
1
1
1
Reset
Phase A Trip
Counter
Increment
Reset
Phase B Trip
Counter
Increment
Reset
Phase C Trip
Counter
Increment
1
1
&
1
&
&
&
S
R
Q
&
S
R
Q
&
&
&
&
&
1
S
R
Q
&
&
&
t
S
R
Q
SET: Fault
Freq Time
S
R
Q
DDB Pre-Lockout (1364)
DDB CB Time Lockout (1111)
INTSIG Reset Lockout Alarm
DDB Lockout Alarm (860)
DDB Fault Freq Lock (1112)
P1115ENg
1
1
Set Dominant
Set Dominant
Set Dominant
1
Figure 104 CB monitoring (P543/P545)
4.6 Circuit breaker control (P543/P545)
The rel
ay includes the following options for control of a single circuit breaker:
 Local tripping and closing, via the relay menu or Hotkeys
 Local tripping and closing, via relay opto-isolated inputs
 Remote tripping and closing, using the relay communications
It is recommended that separate relay output contacts are allocated for remote circuit
breaker control and protection tripping. This enables the control outputs to be selected via a
local/remote selector switch as shown in Figure 105 Where this feature is not required the
same o
utput contact(s) can be used for both protection and remote tripping.