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Etrel Load Guard | User manual
|
The following figure shows the current clamp cables connection for all
three phases (
L1
, L2 in
L3
) from left to right. The phase conductors for
powering the Load Guard must be connected in the same way (from right
to left). Positions for
PE
(earthing conductor) and
N
(neutral conductor)
are also indicated. If phases are not connected in correct sequence, the
Load Guard power calculation will be wrong.
Figure 10: Arrangement of input and output phases
Measuring current transformers are connected to the Load Guard as it is
shown on the following figure.
Figure 11: Load Guard and connected measuring current transformers
The procedure of setting up measuring current transformer on the
conductor is to open it and close it with conductor wire inside of it. The
conductor does not need to be interrupted for the connection.
L1
L2
L3
P
E
N
L
1
L
2
L
3
