Protective Elements
IEC Extremely 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>
.
459
MRI4
DOK-HB-MRI4-2E
0.01
0.1
1
10
100
0.01
0.1
1
10
100
1000
0.05
0.1
0.2
0.5
1
1.5
t [s]
IG / IG> (multiples of pickup)
tchar =
E
d
o
c_
Z
0
4
Reset
Trip
»Char«
= IEC EINV
≤ 20
t
− 1
80
=
If:
IG
IG>
1 <
tchar
t
1−
80
=
If:
< 1
IG
IG>
tchar
IG
IG>
2
IG
IG>
2
Содержание highprotec MRI4
Страница 1: ...Manual Feeder Protection MRI4 Software Version 3 4 a DOK HB MRI4 2E Revision C English...
Страница 43: ...Installation and Connection 43 MRI4 DOK HB MRI4 2E...
Страница 46: ...Installation and Connection Ensure the correct tightening torques 46 MRI4 DOK HB MRI4 2E...
Страница 56: ...Installation and Connection Ethernet RJ45 Terminals 56 MRI4 DOK HB MRI4 2E 1 8 TxD TxD RxD n c n c RxD n c n c...
Страница 69: ...Navigation Operation Navigation Operation 69 MRI4 DOK HB MRI4 2E 1 2 3 5 7 6 8 10 9...
Страница 353: ...Device Parameters 353 MRI4 DOK HB MRI4 2E...
Страница 373: ...373 MRI4 DOK HB MRI4 2E...