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RMO60TD DV-Win Software
Attention:
When the demagnetization process is manually stopped by pressing
STOP
, it is highly recommended to
follow the discharging LED and the buzzer on the RMO60TD device and to be aware of the danger
during the discharging process.
7.8 Delta Winding
The winding resistances of the transformers with delta configuration cannot be directly measured, since
when connected between two terminals you will always measure combination of one winding in parallel
with two in series. However, the DV-Win software allows simple and precise calculation of exact winding
resistance values.
First, it is necessary to measure the resistance values between two corresponding terminals of the
transformer. Three measurements are necessary; between U and V, U and W, and finally, between V
and W. These measurements are performed in the Current tab of DV-Win, and the results are stored in
three different memory locations of the device (in the example above, those locations are 206, 207 and
208). Memory locations where the resistance values are stored need to be entered manually.
After pressing Next, the stored delta resistance values will be shown. After pressing Next again, values
of R
A
, R
B
and R
C
will be calculated.
