ABB RED615 Product Manual page 38

Line Differential Protection and Control
RED615
Product version: 2.0
Table 39. Circuit breaker failure protection (CCBRBRF)
Characteristic
Operation accuracy
Operate time accuracy
Table 40. Circuit breaker failure protection (CCBRBRF) main settings
Parameter
Current value
(Operating phase
current)
Current value Res
(Operating residual
current)
CB failure mode
(Operating mode of
function)
CB fail trip mode
Retrip time
CB failure delay
CB fault delay
Table 41. Three-phase thermal overload (T1PTTR)
Characteristic
Operation accuracy
1)
Operate time accuracy
1) Overload current > 1.2 x Operate level temperature
38
Function
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
Value
Depending on the frequency of the current
measured: f ±2Hz
n
±1.5% of the set value or ±0.002 x I
±1.0% of the set value or ±20 ms
Value (Range)
0.05...1.00 x I
n
0.05...1.00 x I
n
1=Current
2=Breaker status
3=Both
1=Off
2=Without check
3=Current check
0...60000 ms
0...60000 ms
0...60000 ms
Value
Depending on the frequency of the current
measured: f ±2Hz
n
Current measurement: ±1.5% of the set value
or ±0.002 x I (at currents in the range of
n
0.01...4.00 x I )
n
±2.0% of the theoretical value or ±0.50 s
1MRS756500 B
Issued: 03.07.2009
n
Step
0.05
0.05
10
10
10
ABB