MR TAPCON 230 basic, Руководство по эксплуатации

Страница: 118 / 172

7 Functions and settings
118 TAPCON® 230 basic 2117246/02 EN © Maschinenfabrik Reinhausen 2012
Circuit a (3 phase):
Figure 33 Circuit a - phase difference "0 3PH"

The voltage transformer VT is connected to the outer conductor L1 and
neutral N.

The current transformer CT is looped into the outer conductor L1.

The voltage V
L1
and current I
L1
are in phase.

The voltage drop on an outer conductor is determined by the current I
L1
.
Circuit b:
Figure 34 Circuit b - phase difference "0 3PH"

The voltage transformer VT is connected to the outer conductors L1 and
L2.

The current transformer CT
1
is looped into the outer conductor L1 and CT
2
into the outer conductor L2.

The current transformers CT
1
and CT
2
are connected crosswise in parallel
(total current = I
L1
+ I
L2
).

The total current I
L1
+ I
L2
and voltage V
L1/L2
are in phase.

The voltage drop on an outer conductor is determined by the current: (I
L1
+
I
L2
)/

3.