Monitored Data; Operation Principle - ABB RED650 Technical Manual

1MRK 505 394-UEN A
Table 104: CCRBRF Group settings (advanced)
Name Values (Range)
I>BlkCont
t3
tCBAlarm
Table 105: CCRBRF Non group settings (basic)
Name Values (Range)
GlobalBaseSel
8.6.6
8.6.7
Line differential protection RED650 2.2 IEC
Technical manual
Unit
5 - 200 %IB
0.000 - 60.000 s
0.000 - 60.000 s
Unit
1 - 12 -

Monitored data

Table 106: CCRBRF Monitored data
Name
IL1
IL2
IL3
IN

Operation principle

Breaker failure protection CCRBRF is initiated from the protection trip command,
either from protection functions within the IED or from external protection devices.
The start signal can be phase selective or general (for all three phases). Phase
selective start signals enable single pole re-trip function. This means that a second
attempt to open the breaker is done. The re-trip attempt is made after a set time
delay t1. For transmission lines, single pole trip and autoreclosing is often used.
The re-trip function can be phase selective if it is initiated from phase selective line
protection. The re-trip function can be done with or without current check. With the
current check, the re-trip is only performed if the current through the circuit
breaker is larger than the operate current level.
The re-trip function can be done with or without CB position check according to
table 107.
Step Default
1 20
0.001 0.030
0.001 5.000
Step Default
1 1
Type Values (Range)
REAL -
REAL -
REAL -
REAL -
Section 8
Current protection
Description
I> in % of IBase block operation using
Function Mode Contact
Additional time delay to t2 for a second
back-up trip
Time delay for alarm when faulty circuit
breaker indicated
Description
Selection of one of the Global Base
Value groups
PID-3562-MONITOREDDATA v7
Unit Description
A Measured current in
phase L1
A Measured current in
phase L2
A Measured current in
phase L3
A Measured residual
current
M16914-3 v9
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