ABB RELION REB500 Applications Manual page 38

Section 6
BP-Additions to base documentation
Function/ Parameter
Accuracy of pick up value
Accuracy of angle measurement (at 0.97...1.03 f
Reset ratio
Table 17:
Function/ Parameter
Current
Angle
Inverse time characteristic
(according to B.S. 142, IEC 60255-3 with extended setting
range):
normal inverse
very inverse
extremely inverse
long time inverse
t-min
IB-value
Wait time
Memory duration
Voltage input range
Voltage memory range
Response time without delay
Directional overcurrent protection with detection of power flow direction
Back-up protection
Four 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Selectable response when power direction no longer valid (trip or block)
Table 18:
Function/ Parameter
Pick up voltage
Delay
Max. operating time without delay
• Over and undervoltage detection
• Single or three-phase measurement with detection of the highest, respectively lowest phase
voltage
• Four independent parameter sets
Accuracies
Accuracy of the pick up setting (at f
Reset ratio (U ≥ 0.1 U
• overvoltage
• undervoltage
32
Directional overcurrent inverse time protection 67 (PTOC)
Definite time over and undervoltage protection 59/27 (PTUV/PTOV)
)
N
)
N
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Range/ Value
±5%
) ±5°
N
95%
Range/ Value
0.02 to 20 I
N
-180° to +180° in steps of 15°
t = k / ((I/I
1 B
c = 0.02
c = 1
c = 2
c = 1
0 to 20 in steps of 0.01
0.04 to 2.5 I
N
0.02 to 20 s in steps of 0.01 s
0.2 to 60 s in steps of 0.01 s
0.005 to 2 U
<0.005 U
N
60 ms
Range/ Value
0.01 to 2.0 U
0.02 to 60 s in steps of 0.01 s
60 ms
Value
±2% or ±0.005 U
• >95%
• <106
1MRK 505 403-UEN Rev. C
in steps of 0.01 I
N
C
) - 1)
in steps of 0.01 I
N
N
in steps of 0.01 U
N N
N
Bay protection functions REB500
Application manual