DV Power TRT3 Series, Manual

Page: 10 / 21

TRT3x Getting Started
M-T03XNN-205-EN 10
3.2 Setting the Measurement Parameters
Five seconds after the first (initial) message on the display, TRT3x automatically changes the display to the
CONFIGURATION menu and the green LED lights up. By pressing
SET
the user can switch between the
CONFIGURATION menu and the MEMORY menu.
Press
UP/DOWN
in the HV CONFIG field to select the test mode to be performed. A list of the available test
modes is shown in the Tables 2 and 4.
Table 2 : Available options in the configuration menu
HV
Config.
LV
Config.
Ph
Displacement
Comment Test mode
D displayed displayed Delta winding Phase by phase test
using single-phase
voltage in turns
&
the true 3-phase test
using 3-phase voltage
Y displayed displayed Star winding
YN displayed displayed Star winding with neutral point
Z displayed displayed Zigzag
ZN displayed displayed Zigzag with neutral point
AVGD hidden hidden Automatic vector group
detection
SINGLE hidden hidden Single-phase transformer Single phase test
using single-phase
voltage
CT hidden hidden Current transformer (CT)
TRUE 3~
TEST
hidden hidden Only true three-phase test True 3-phase test
using 3-phase voltage
AUTO hidden hidden Autotransformer menu See the Table 4
Press
ENTER
to choose one of the available options in the configuration menu.
1. If the vector group is selected, TRT3x will perform both the true three-phase test by applying true three-
phase test voltage and the phase by phase test by applying single phase test voltages to all phases in
turn.
2. If SINGLE is chosen, TRT3x will test a single phase transformer by applying the single phase test voltage
between 1U/H1/A and 1N/H0/N.
3. If CT is chosen, TRT3x will test a current transformer by applying the single phase test voltage between
1U/H1/A and 1N/H0/N.
4. If AUTO is chosen, TRT3x will display the special menu for autotransformers to the user.
5. If the AVGD option is selected, TRT3x will automatically detect the vector group of the transformer under
test.
6. If TRUE 3~ TEST is selected, TRT3x will perform the true three-phase test by applying the true three-
phase test voltage.
Table 3 lists the available vector groups in this menu.
Table 3: Available vector group configurations
Configuration Displacements
D-d, D-z, D-zn, Z-d, ZN-d, Y-y, Y-Yn, YN-y, YN-yn 0-2-4-6-8-10
D-y, D-Yn, Y-d, Y-z, Y-zn, Y-d, YN-z, YN-zn, YN-d, Z-y, Z-yn, ZN-y, ZN-yn 1-3-5-7-9-11