11
the next interface.
2 0 0 7 . 0 1 . 0 1
Tap
R
3 5 1 . 2
mΩ
Store
Current tap:
0 1
Re-test
Exit
1 4 : 0 2 : 5 1
Now, the dc resistance tester starts to display the resistance value of the
winding under test and such value gradually becomes stable. At this time,
press the Tap button to adjust and set the current tap value or winding name so
as to mark the measurement result. After the Tap button is pressed down, the
multi-functional key on the right becomes “▲”“▼”“
”“OK” and “Cancel”, and
the tap setting dialogue box is ejected. After setting, press “OK” button to save
it and press “Cancel” button to modify it. Then, press “Store” and “Print” button
to save or print the measurement result. In case of any doubt about the data,
press “Retest” button to carry out the measurement and calculation again.
When measuring the on-load voltage changing transformer, after the
testing data of one tapping position becomes stable, the on-load tapping
switch may be switched to the next tapping position, without discharging to
conduct the measurement over again. At this time, the resistance value of the
winding will change gradually until it becomes stable. You may also press
“Re-test” button to quickly refresh the data. Repeat the above-mentioned
procedure until all the tapping tests are completed.
③
Three-phase measurement:
The three-phase measurement applies to the windings of YN star
