Operation
An example of the effect of the Filter is shown below.
Current waveform (— without filter)
Relay range
1 Amp
1 Amp
1 Amp
2 Amp
4 Amp
4 Amp
12
Overload
factor
Filter in
x 2
x 4
x 6
x 2
x 2
x 4
Time to trip/s
Filter out
9,37
12,23
4,92
6,53
3,97
4,97
9,30
11,37
9,42
10,40
4,90
4,88
(— with filter)
Filter range
2 A
5 A
10 A
5 A
10 A
30 A