Bender ISOSCAN W Series - Connection of the X2 Interface (K1-12;L1-12); Connection of CTAC

Mounting
4.10 Connection of the X2 interface (k1-12/l1-12)
A1 A2
1
2 3 4 5 6 7 8 9 10 11 12
L
l 1 l 12l 11l 2 l 10l 9l 8l 7l 6l 5l 4l 3
k 1 k12k11k 2 k10k 9k 8k 7k 6k 5k 4k 3
l1 Measuring current transformer 1 k1
l2 Measuring current transformer 2 k2
l3 Measuring current transformer 3 k3
l4 Measuring current transformer 4 k4
… … …
l12 Measuring current transformer 12 k12
Cable lengths of the measuring current transformers
Install the measuring current transformers according to the instructions in the respective data sheet of the
measuring current transformer. When connecting, observe the maximum cable lengths.
4.10.1 Connection of CTAC… series measuring current transformers
For insulation fault location, the measuring current transformers of the CTAC… series are used.
A1/+ A2/-
l1
k1
l2
k2
l3
k3
l4
k4
l5
k5
l6
k6
l7
k7
l8
k8
l9
k9
l10
k10
l11
k11
l12
k12
Type A
CTAC 1
k
l
CTAC 2
k
l
l1 k1 l2 k2
l k l k
CTAC… series measuring current transformers
Terminals 1 and 2 as well as terminals 3 and 4 of the measuring current transformer are bridged internally.
The connections k and l must not be interchanged on the EDS44….
24 EDS44x_D00201_10_M_XXEN/11.2023