Section 6
1MRK 505 353-UEN
BP-Additions to base documentation
42
Application Manual
Bay protection functions REB500
Table 49
Directional overcurrent definite time protection 67 (PTOC)
Function/ Parameter
Range/ Value
•
Current
0.02 to 20 I
N
in steps of 0.01 I
N
•
Angle
-180° to +180° in steps of 15°
•
Delay
0.02 to 60 s in steps of 0.01 s
•
Wait time
0.02 to 20 s in steps of 0.01 s
•
Memory duration
0.2 to 60 s in steps of 0.01 s
•
Voltage input range
0.005 to 2 U
N
•
Voltage memory range
<0.005 U
N
•
Response time without delay
65 ms
·
Directional overcurrent protection with detection of power flow direction
·
Back-up
protection
·
4 independent parameter sets
·
Three-phase
measurement
·
Suppression of DC and HF components
·
Definite
time
characteristic
·
Voltage memory for near faults
·
Selectable response when power direction no longer valid (trip or block)
Accuracies
Classes/ Value
•
Accuracy of pick-up value
±5%
•
Accuracy of angle measurement (at 0.97
…
1.03 f
N
)
±5°
•
Reset ratio
95%
Содержание Relion REB500
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