Protective Elements
R Inverse
Various reset modes are available:
Resetting via characteristic, delayed and instantaneous.
Remark: For
I
G
> 20
⋅
I
G>
, the curve stops decreasing, the t-values are kept constant at the value for
I
G
= 20
⋅
I
G>
.
464
MRI4
DOK-HB-MRI4-2E
≤ 20
If:
IG
IG>
1 <
0.01
0.1
1
10
100
0.1
1
10
100
0.05
0.1
0.2
0.5
1
1.5
t [s]
IG / IG> (multiples of pickup)
tchar=
E
d
o
c
_Z
1
2
»Char«
= RINV
Reset
Trip
t
=
tchar
1.0
t
1−
1.0
=
IG
IG>
2
If:
< 1
IG
IG>
tchar
IG
IG>
−1
0.339−0.236
Summary of Contents for highprotec MRI4
Page 1: ...Manual Feeder Protection MRI4 Software Version 3 4 a DOK HB MRI4 2E Revision C English...
Page 43: ...Installation and Connection 43 MRI4 DOK HB MRI4 2E...
Page 46: ...Installation and Connection Ensure the correct tightening torques 46 MRI4 DOK HB MRI4 2E...
Page 69: ...Navigation Operation Navigation Operation 69 MRI4 DOK HB MRI4 2E 1 2 3 5 7 6 8 10 9...
Page 353: ...Device Parameters 353 MRI4 DOK HB MRI4 2E...
Page 373: ...373 MRI4 DOK HB MRI4 2E...