ABB RET615 Product Manual page 45

ABB
Transformer Protection and Control
RET615
Product version: 4.0
Table 49. 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 50. Arc protection (ARCSARC)
Characteristic
Operation accuracy
Operate time
Reset time
Reset ratio
1) Phase start value = 1.0 x I , current before fault = 2.0 x set
n
distribution of 200 measurements
2) Includes the delay of the heavy-duty output contact
Table 51. Arc protection (ARCSARC) main settings
Parameter
Phase start value
(Operating phase current)
Ground start value
(Operating residual current)
Operation mode
Table 52. Multipurpose protection (MAPGAPC)
Characteristic
Operation accuracy
Function
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
CCBRBRF
Operation mode = "Light
+current" 1)2)
Operation mode = "Light
2)
only"
Phase start value , f
Function
ARCSARC
ARCSARC
ARCSARC
Value
±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
±3% of the set value or ±0.01 x I
Minimum Typical
9 ms 12 ms
9 ms 10 ms
< 40 ms
Typical 0.96
= 50 Hz, fault with nominal frequency, results based on statistical
n
Value (Range)
0.50...40.00 x I
n
0.05...8.00 x I
n
1=Light+current
2=Light only
3=BI controlled
1MRS756891 F
Step
0.05
0.05
-
-
10
10
10
n
Maximum
15 ms
12 ms
Step
0.01
0.01
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