MR ETOS ED - Page 200

9 Visualization
Maschinenfabrik Reinhausen GmbH 2020200 6385142/08 ENETOS
®
ED
▪ The voltage transformer VT is connected to the phase conductor L1 and
the neutral conductor.
▪ The current transformer CT is looped into the phase conductor L1.
▪ The voltage U and current I are in phase.
▪ The voltage drop on a phase conductor is determined by the current I
L1
.
If you use this circuit, set the device as follows:
Parameters Option
Voltage-transformer circuit 3 Ph phase voltage
Current-transformer circuit 3 Ph phase current
Phase angle correction 0°
Table50: Circuit 1-B
Circuit 1-C
L1
L2
L3
UL1
IL1
VT
CT1
UL1 IL1
IL2
IL3UL3
UL2
CT2
UL1-UL2
-UL2
IL1-IL2
-IL2
UI
L N k l
▪ The voltage transformer VT is connected to the phase conductors L1 and
L2.
▪ The current transformer CT1 is looped into the phase conductor L1 and
CT2 into the phase conductor L2.
▪ The current transformers CT1 and CT2 are connected crosswise in paral-
lel (total current = I
L1
+I
L2
).
▪ The total current I
L1
+I
L2
and voltage U
L1
-U
L2
are in phase.
▪ The voltage drop on a phase conductor is determined by the current:
(I
L1
+I
L2
)/√3.
If you use this circuit, set the device as follows:
Parameters Option
Voltage-transformer circuit 3 Ph differential voltage
Current-transformer circuit 3 Ph total current
Phase angle correction 0°
Table51: Circuit 1-C