MR TAPCON 250 - Page 122

9 Operation
Maschinenfabrik Reinhausen GmbH 2022122 8595028/00 ENTAPCON
®
250
Circuit 1-E
L1
L2
L3
UL2
VT
CT
UL1 IL1
IL2
IL3UL3
UL2
UL2-UL1
-UL1
IL2
UI
L N k l
Figure63: Circuit 1-E
▪ The voltage transformer VT is connected to the phase conductors L1 and
L2.
▪ The current transformer CT is looped into the phase conductor L2.
▪ The current I
L2
is ahead of voltage U
L2
-U
L1
by 30°. This corresponds to a
phase shift of -30°.
▪ The voltage drop on a phase conductor is determined by the current I
L2
.
If you use this circuit, set the device as follows:
Parameter Option
Voltage-transformer circuit 3Ph differential voltage
Current-transformer circuit 3 Ph phase current
Phase angle correction 30°
Table33: Circuit 1-E
Circuit 1-F
IL1
L1
L2
L3
VT
CT
UL1
IL1
IL2
IL3
UL3
UL2
UL1
UL1-UL2
-UL2
UI
L
N
k
l
Figure64: Circuit 1-F