Datcon PQRM5100 11 U I Series, Instruction Manual

Page: 17 / 80

PQRM5100 11 Ux Ix xx xx (PS)
20200205-V1
17
5.6. Connecting the measuring inputs
to symmetrical
three-phase power network without
neutral
conductor. (3 phase, 3 wire, 1 measuring)
The following figure shows the wiring plan to symmetrical
three-phase network without neutral conductor. Measuring
only one phase. The three phase outputs are calculated
values. The measuring arrangement use for the
measurement of rotating machinery!
Wiring plan, connecting
the voltage and current
inputs to power network.
The application of:
The vector sum of all
phase voltages is always
zero!
The terminal “k” of CT and
terminal “v” of VT you have
to connecting to earth!
1. Loosen terminal screws.
2. Insert the wire ends into the open terminals according to
the wiring plan.
3. Screw the terminal in.
4. Check the hold of the wires in terminals by pulling on
them firmly.
Checking the
connections
Check if the cables are connected properly (have you
connected all the cables, have you connected to the right
place, do not the cable-ends touch each other).