Table 373:
67NIEF Non group settings (Basic)
Parameter
Values (Range)
Unit
Step
Default
Description
Operation
1=enable
5=disable
1=enable
Operation Disable / Enable
Operation mode
1=Intermittent EF
2=Transient EF
1=Intermittent EF
Operation criteria
Vg or V0
1=Measured VG
2=Calculated V0
1=Measured VG
Selection for used Uo signal
Table 374:
67NIEF Non group settings (Advanced)
Parameter
Values (Range)
Unit
Step
Default
Description
Reset delay time
40...60000
ms
1
500
Reset delay time
Peak counter limit
2...20
1
2
Min requirement for peak counter before
pickup in IEF mode
Min trip current
0.01...1.00
xIn
0.01
0.01
Minimum operating current for transient
detector
4.2.3.8
Monitored data
Table 375:
67NIEF Monitored data
Name
Type
Values (Range)
Unit
Description
FAULT_DIR
Enum
0=unknown
1=forward
2=backward
3=both
Detected fault direction
PICKUP_DUR
FLOAT32
0.00...100.00
%
Ratio of pickup time / trip time
67NIEF
Enum
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Status
4.2.3.9
Technical data
Table 376:
67NIEF Technical data
Characteristic
Value
Operation accuracy (VG criteria with transient
protection)
Depending on the frequency of the measured
current: f
n
±2 Hz
±1.5% of the set value or ±0.002 × VG
Trip time accuracy
±1.0% of the set value or ±20 ms
Suppression of harmonics
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5
1MAC059074-MB A
Section 4
Protection functions
615 series ANSI
369
Technical Manual
Summary of Contents for Relion 615 series
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