Value is stable and therefore recorded when a change of 0.0003% per second,
or 0.003% per 10 seconds or 0.03% per 100 seconds is achieved.
Value is stable and therefore recorded when a change of 0.003% per second,
or 0.03% per 10 seconds or 0.3% per 100 seconds is achieved.
User can manually introduce any stabilization parameter, the value introduced
is the slope of the change, and is defined as value (in percentage) per second
Winding:
Define which available tap changer is used
(taped trough) in the actual measurement.
Sequence:
Select which taps have to be measured
(single extremes, all)
Operation:
Define if the tap changer is operated
manually (the unit gives a message to
change and waits for confirmation) or
automated together with the “Remote Tap
Switch” cable.
Set as timeout the time which is maximum
needed to change the tap (used if no
feedback signal is available from the tap
changer)
Type:
Off Load the unit will be discharged
before changing a tap
On Load The unit stays charged while
tap changing.
Short unused windings Normally
checked. Avoids overvoltage protection
problems.
Example: When “All Taps” and “On Load” is selected the sequence is as follows:
First phase – test all taps – next phase etc., tap changing in charged state and the
measurements on multiple windings are performed sequential.
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