28592_EDEK
ZA0044-0224-1_EN
20
3.6.4.2 Connection to voltage sensors
multimess F144-PQ in 3-wire connection for medium and high-voltage via voltage sen-
sors
Voltage connections
Ensure that terminals 37 & 38 (N/E) are short-circuited for each measurement.
Ensure that the shielding of the voltage sensors is grounded on both sides.
Set the voltage transformation ratio.
Ground loops must be avoided! If there is a potential
difference, only one side of the shielding must be grounded!
Ensure that the switching mode (3-wire) is set (settings are described in chapter 4.3).
Set the voltage transformation ratio.
Enter the nominal voltage of the conductor-conductor voltage.
Current connections
Set current transformer ratio.
Connection multimess F144-PQ current I
N
in 3-wire network
If a current is connected to input I
N
in the 3-wire network,
it is not physically measured. The current I
N
is always calculated
in 3-wire operation.
Commissioning
