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Application
Pressing the Settings menu key opens the Settings page. The Settings page
of the TRRatio test card has another functionality as on other test cards.
Figure 3-3 Settings page of the TRRatio test card
Note: The Settings page opens automatically if the Auto-tap operation mode
is activated.
For proper Auto-tap operation, the Tap time and Start at settings need to be
adjusted. The Tap time is the time needed to switch from one tap to the next.
Start at defines the initial position of the tap. With the Tap up / Tap down
softkeys you can move the tap changer manually. Move the tap changer to the
highest or lowest tap, depending on your setting before measurement.
The Settings page allows adding the transformer’s ratio per tap as follows. After
pressing the Add Tap menu key first enter the Tap Number, Vprim and Vsec.
Add the next tap by pressing the Add Tap meu key and enter the corresponding
Vprim and Vsec values. After then, pressing the Add Tap menu key repeatedly
Time needed to switch from one tap to the next
Measurement starts at the lowest or highest tap position
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General