MR TAPCON 250 - Page 121

9 Operation
Maschinenfabrik Reinhausen GmbH 2022 1218595028/00 EN TAPCON
®
250
If you use this circuit, set the device as follows:
Parameter Option
Voltage-transformer circuit 3Ph differential voltage
Current-transformer circuit 3Ph total current
Phase angle correction 0°
Table31: Circuit 1-C
Circuit 1-D
L1
L2
L3
UL1
VT
CT
UL1 IL1
IL2
IL3UL3
UL2
UL1-UL2
-UL2
IL3
UI
L N k l
Figure62: Circuit 1-D
▪ The voltage transformer VT is connected to the phase conductors L1 and
L2.
▪ The current transformer CT is looped into the phase conductor L3.
▪ The current I
L3
is ahead of voltage U
L1
-U
L2
by 90°. This corresponds to a
phase shift of -90°.
▪ The voltage drop on a phase conductor is determined by the current I
L3
.
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 90°
Table32: Circuit 1-D