ABB Relion 650 Series Technical Manual page 211

1MRK 506 326-UUS B
6.10.8 Technical data
Table 118: CCRBRF (50BF) technical data
Function
Operate phase current
Reset ratio, phase current
Operate residual current
Reset ratio, residual current
Phase current pickup for blocking of
contact function
Reset ratio
Timers
Operate time for current detection
Reset time for current detection
6.11 Breaker failure protection CSPRBRF (50BF)
6.11.1 Identification
Function description
Breaker failure protection
6.11.2 Functionality
Breaker failure protection for single pole tripping applications CSPRBRF (50BF) ensures fast back-
up tripping of surrounding breakers in case the protected breaker fails to open. CSPRBRF (50BF)
can be current based, contact based, or adaptive combination between these two principles.
A current check with extremely short reset time is used as a check criterion to achieve a high
security against unnecessary operation.
A contact check criteria can be used where the fault current through the breaker is small.
CSPRBRF (50BF) function current criteria can be fulfilled by one or two phase currents, or one
phase current plus residual current. When those currents exceed the user defined settings, the
function is activated. These conditions increase the security of the back-up trip command.
Line distance protection REL650
Technical manual
Range or value
(5-200)% of
> 95%
(2-200)% of
> 95%
(5-200)% of
> 95%
(0.000-60.000) s
35 ms typically
10 ms maximum
IEC 61850 identification
CSPRBRF
© Copyright 2011 ABB Power Grids. All rights reserved
lBase
lBase
lBase
IEC 60617 identification
3I>BF
SYMBOL-U V1 EN-US
Section 6
Current protection
M12353-1 v5
Accuracy
± 1.0% of I at I £ I
n n
± 1.0% of I at I > I
n
-
± 1.0% of I at I £ I
n n
± 1.0% of I at I > I
n
-
± 1.0% of I at I £ I
n n
± 1.0% of I at I > I
n
-
± 0.5% ±10 ms
-
-
GUID-47239129-F1C9-4C13-85E9-2AA66ECC9940 v1
GUID-590380C1-76D2-43CA-AA74-A520897B00B5 v1
ANSI/IEEE C37.2 device
number
50BF
GUID-293A8842-8292-45D4-AD04-32CCAD2BF4C9 v2
205