7 Functions and settings
88
TAPCON® 230 basic
2117246/02 EN
© Maschinenfabrik Reinhausen 2012
7.3.8
Setting delay time T1
Delay time T1 delays the issuing of a tap-change command for a defined pe-
riod. This function prevents unnecessary tap-change operations if the toler-
ance bandwidth is exited.
If the current measured voltage exits the bandwidth, delay time T1 starts. This
is shown in the display by the time bar filling and the remaining time being in-
dicated.
If the control deviation is still present after the delay time, a tap-change com-
mand is issued.
If during the delay time the measured voltage returns to within the bandwidth
range, the delay time still running is counted down in seconds starting from
the time already expired. The absolute time display disappears from the dis-
play. The time bar is shown hatched and shrinks steadily. If the measured vol-
tage exceeds the set bandwidth once more whilst the time is not displayed,
then the time delay is restarted from the remaining time.
The benefit of this method is that the effective time delay is reduced if the
bandwidth is frequently exceeded. The device responds faster because the
time measurement for the delay time doesn't start at 0 seconds but, for exam-
ple, at 5 seconds.
