1MRK 505 353-UEN
Section 6
BP-Additions to base documentation
Application Manual
43
Bay protection functions REB500
Table 50
Directional overcurrent inverse 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°
Inverse time characteristic
(acc. to B.S. 142, IEC 60255-3 with extended setting range):
•
normal inverse
•
very inverse
•
extremely inverse
•
long time inverse
t = k
1
/ ((I/I
B
)
C
- 1)
•
c = 0.02
•
c = 1
•
c = 2
•
c = 1
•
t-min
0 to 20 in steps of 0.01
•
IB-value
0.04 to 2.5 I
N
in steps of 0.01 I
N
•
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
60 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
·
Inverse
time
characteristic
·
Voltage memory for near faults
·
Selectable response when power direction no longer valid (trip or block)
Содержание Relion REB500
Страница 1: ...png Substation Automation Products Bay protection functions REB500 Application Manual...
Страница 2: ......
Страница 8: ......