Seg HighTECH MRG3 - Earth Fault Supervision

SEG Electronics GmbH Manual MRG3
80 DOK-TD-MRG3, Rev. D
7.8.4 Earth fault supervision
Setting range
Step (Range)
Tolerance
I
E
>
Warn or trip of I
E
> element
trip; warn
I
E
>
1...200 % (EXIT)
0.1 (1...5)
0.2 (5...10)
0.5 (10...20)
1 (20...50)
2 (50...100)
5 (100...200)
3% of the set value
or. 0.3% I
N
tI
E
>
0.04 - 300 s (EXIT)
(definite time)
0.02 (0.06...1.0)
0.05 (1.0...2.0)
0.1 (2.0...5.0)
0.2 (5.0...8.5)
0.5 (10...20)
1,0 (20...50)
2.0 (50...100)
5.0 (100...200)
10.0 (200...300)
3% or 20 ms
I
E
_Char
Normal Inverse Typ “A”
Very Inverse Typ “B”
Extremely Inverse Typ “C”
RI - Inverse
Long Time Inverse
RXIDG-Kennlinie
NINV
VINV
EINV
RINV
LINV
RXID
0,05 - 10 (EXIT)
0.05 – 1.0 (EXIT) only RXIDG
(inverse time)
0.01 (0.05...0.5)
0.02 (0.5...1.0)
0.05 (1.0...2.0)
0.1 (2.0...5.0)
0.2 (5.0...10.0)
3% related to the measured
current value and 20ms re-
spectively
(see EN 60255-3)
tI
E
>
Reset
Reset Mode for tripping times
0s; 60s
I
E
>>
1...400 % (EXIT)
0,1 (1...5)
0,2 (5...10)
0,5 (10...20)
1 (20...50)
2 (50...100)
5 (100...200)
10 (200...400)
3% of the set value
tIE>>
0.04...300 s (EXIT)
0.02 (0.06...0.5)
0.05 (0.5...2.0)
0.1 (2.0...5.0)
0.2 (5.0...10)
0.5 (10...20)
1.0 (20...50)
2.0 (50...100)
5.0 (100...200)
10.0 (200...300)
3% or 20 ms
Table 7.4: Earth fault supervision
* Tripping time in forward direction (tripping range)
** Tripping time in backward direction (blocking range), see chapter 4.7.3