Connecting The Measuring Inputs To Three-Phase Power Network Trough Three-Phase Voltage Transformers Without Common Connection Point (3 Phase, 3 Wire, 3 Measuring, 3Fmv) - Datcon PQRM5300 33 U I Series Instruction Manual

PQRM5300 33 Ux Ix xx xx (PS)
Wiring plan, connecting
the voltage and current
inputs to power network.
The terminal "k" of CT you
have to connecting to
earth!
One phase of three-phase
transformer you have to
connecting to earth!
The 17, 22, 27 input of
devices shall not connect
to earth!
The VT you must mull √3
Checking the
connections
20201120-V1
5.9. Connecting the measuring inputs
power network trough three-phase voltage
transformers without common connection point (3
phase, 3 wire, 3 measuring, 3fmv)
The following figure shows the wiring plan to three-phase
network without neutral conductor. The voltage inputs are
connecting trough one three-phase transformers to power
network. One secondary phase of the three-phase
transformers is 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.
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).
to three-phase
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