Circuit Breaker Failure Protection (Ccbrbrf); Circuit Breaker Failure Protection (Ccbrbrf) Main Settings; Arc Protection (Arcsarc) - ABB RET620 Product Manual

Transformer Protection and Control
RET620
Product version: 2.0
Table 61. Circuit breaker failure protection (CCBRBRF)
Characteristic
Operation accuracy
Operate time accuracy
Retardation time
Table 62. 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 63. Arc protection (ARCSARC)
Characteristic
Operation accuracy
Operate time
Reset time
Reset ratio
Phase start value = 1.0 x I
1) , current before fault = 2.0 x set
n
2) Includes the delay of the heavy-duty output contact
3) Normal power output
4) High-speed output
ABB
Function
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
Operation mode = "Light
1)2)
+current"
Operation mode = "Light only"
Phase start value , f
= 50 Hz, fault with nominal frequency, results based on statistical distribution of 200 measurements
n
Value
Depending on the frequency of the current measured: f
±1.5% of the set value or ±0.002 x I
±1.0% of the set value or ±20 ms
< 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
±3% of the set value or ±0.01 x I
Minimum
3)
12 ms
4)
7 ms
2) 3)
9 ms
4)
4 ms
3)
< 40 ms
4)
< 55 ms
Typical 0.96
1MRS757846 A
n
Step
0.05
0.05
-
-
10
10
10
n
Typical Maximum
3)
14 ms 16 ms
4)
8 ms 11 ms
3)
10 ms 12 ms
4) 4)
6 ms 6 ms
±2 Hz
n
3)
4)
3)
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