Technical Data - ABB RELION REX640 Technical Manual

Section 5
Protection related functions
5.1.10
5.2
5.2.1
5.2.2
5.2.3
1066

Technical data

Table 1006: INRPHAR Technical data
Characteristic
Operation accuracy
Reset time
Reset ratio
Operate time accuracy
Circuit breaker failure protection CCBRBRF
Identification
Function description
Circuit breaker failure protection
Function block
GUID-290B1D3C-D9DA-4E29-963A-428535603146 V1 EN
Figure 572: Function block
Functionality
The circuit breaker failure protection function CCBRBRF is activated by trip
commands from the protection functions or through binary inputs. CCBRBRF
includes a conditional or unconditional re-trip function, and also a conditional back-
up trip function.
The operating values of the current measuring elements can be set within a predefined
setting range. The function has two independent timers for trip purposes: a re-trip
timer for the repeated tripping of its own breaker and a back-up timer for the trip logic
operation for upstream breakers. A minimum trip pulse length can be set
independently for the trip output.
Value
At the frequency f = f
Current measurement:
±1.5% of the set value or ±0.002 × I
Ratio I2f/I1f measurement:
±5.0% of the set value
+35 ms / -0 ms
Typically 0.96
+35 ms / -0 ms
IEC 61850 IEC 60617
identification identification
CCBRBRF 3I>/Io>BF
1MRS759142 C
n
n
ANSI/IEEE C37.2
device number
50BF
REX640
Technical Manual