Installation and Connection
EN MRM4 01/11
Page 45
L1
L2
L3
IL1
IL3'
IL2
IL3
IL1'
1
X3.
2
3
4
5
6
7
8
9
10
11
12
IL2'
IL1'
Two phase current measurement (Open Delta); In secondary = 5 A.
Earth-current measuring via cable-type current transformer ; IGnom secondary = 5 A.
IL3'
IG'
IL1
1A
5A
N
IL2
1A
5A
N
IL3
1A
5A
N
IG
1A
5A
N
Warning!
The shielding at the dismantled end of the line has to be put through the cable-type current
transformer and has to be grounded at the cable side.
Ring Core Type Current
Transformer: Measures the
ground current. (Sum of the
three phase currents). Can
be used for measuring the
earth current in isolated and
compensated networks. The
shield is to be returned
through the ring core current
transformer.
IG meas = IG
IG calc = IL1 + IL2 + IL3
Содержание MRM4
Страница 1: ...MRM4 HighPROTEC Motor Protection Device Manual DOK HB MRM4E...
Страница 3: ...Order Code EN MRM4 01 11 Page 3...
Страница 18: ...Important Definitions Page 18 EN MRM4 01 11 41 SG Prot ON 42 SG ON Cmd SG Prot ON SG ON Cmd...
Страница 115: ...Navigation Operation Navigation Operation EN MRM4 01 11 Page 115 1 2 3 5 7 6 8 10 9...
Страница 162: ...Recorder Name Description I 2 TripCmd Signal Trip Command Page 162 EN MRM4 01 11...