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試験装置 DV Power TRT03のPDF マニュアルをオンラインで閲覧またはダウンロードできます。DV Power TRT03 19 ページ。 Three-phase transformer turns-ratio test instrument
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3.2 Setting the Measurement Parameters
Five seconds after the first (initial) message on the display, TRT03 automatically changes the display to the
CONFIGURATION menu and the green LED lights up. By pressing
CONFIGURATION menu and the MEMORY menu.
Press
in the HV CONFIG field to select the test mode to be performed. A list of the available test
UP/DOWN
modes is shown in the Table 2.
HV
LV
Config.
Config.
D
displayed
Y
displayed
YN
displayed
Z
displayed
ZN
displayed
AUTO
hidden
SINGLE
hidden
CT
hidden
Press
to choose one of the available options in the configuration menu.
ENTER
1. If the vector group is selected, TRT03 will perform the phase by phase test by applying single phase test
voltages to all phases in turn.
2. If SINGLE is chosen, TRT03 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, TRT03 will test a current transformer by applying the single phase test voltage between
1U/H1/A and 1N/H0/N.
4. If the AUTO option is selected, TRT03 will automatically detect the vector group of the transformer under
test.
Table 3 lists the available vector groups in this menu.
Configuration
D-d, D-z, D-zn, Z-d, ZN-d, Y-y, Y-Yn, YN-y, YN-yn
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
If a ratio deviation calculation is enabled, the following menu is displayed to enter the name plate voltages
and the tap changer positions:
Figure 3-1:
Input name plate
voltages values
M-T003NN-205-EN
Table 2: Available options in the configuration menu
Ph
Comment
Displacement
displayed
Delta winding
displayed
Star winding
displayed
Star winding with neutral point
displayed
Zigzag
displayed
Zigzag with neutral point
hidden
Automatic vector group
detection
hidden
Single-phase transformer
hidden
Current transformer (CT)
Table 3: Available vector group configurations
9
the user can switch between the
SET
Test mode
Phase by phase test
using single-phase
voltage in turns
Single phase test
using single-phase
voltage
Displacements
0-2-4-6-8-10
1-3-5-7-9-11
High Voltage Tap Changer
position
Low Voltage Tap Changer
position
Getting Started