MR TAPCON, Operating Instructions Manual

Page: 135 / 334

8 Operation
Maschinenfabrik Reinhausen GmbH 2020 135 3587317/21 EN TAPCON
®
U switching direction
You can use this parameter to set the switching direction for voltage regula-
tion. You can use this to adjust the behavior of the device based on how
your on-load tap-changer and motor-drive unit are configured. You can se-
lect the following options:
Setting Meaning
Standard The device issues a signal via the Raise output to increase the
voltage.
The device issues a signal via the Lower output to reduce the
voltage.
Swapped The device issues a signal via the Lower output to increase
the voltage.
The device issues a signal via the Raise output to reduce the
voltage.
Table 39: Behavior
Q switching direction (optional)
You can use this parameter to set the switching direction for reactive power
regulation. You can use this to adjust the behavior of the device based on
how your on-load tap-changer and motor-drive unit are configured. You can
select the following options:
Setting Definition
Standard The device issues a signal via the RAISE output to increase
the reactive power.
The device issues a signal via the LOWER output to reduce
the reactive power.
Swapped The device issues a signal via the LOWER output to increase
the reactive power.
The device issues a signal via the RAISE output to reduce the
reactive power.
Table 40: Behavior
Switching direction monitoring
You can use this parameter to set the switching direction monitoring. This
function monitors whether a tap-change operation in the wrong direction has
been undertaken (e.g. due to a wiring mistake).
If a tap-change operation in the wrong direction is detected, the device is-
sues the event message
Switching direction monitoring and blocks auto-
matic regulation. Automatic regulation is blocked until you acknowledge
[
► Section 8.25.1, Page 237] the event.
Switching direction monitoring is not active if you control the motor-drive unit
with a continuous pulse [
► Section 8.10.1, Page 132].