MR tapcon 240, Operating Instructions Manual

Page: 107 / 174

7 Functions and settings
Maschinenfabrik Reinhausen 2014 107 222/08 EN TAPCON® 240
To set the circulating reactive current sensitivity, proceed as follows:
1. > Configuration > Parallel operation > Press until the
desired parameter is displayed.
ð Stability.
2. Press to increase the value or to reduce it.
3. If necessary, press to highlight the decimal place.
ð The decimal place is now highlighted and the value can be
changed.
4. Press .
ð The circulating reactive current sensitivity is set.
Setting circulating reactive current blocking
You can use this parameter to set the limit value for the maximum permissi-
ble circulating reactive current. If, during parallel operation, the circulating re-
active current exceeds the set limit value, then the following event is activat-
ed:
▪
Problem with parallel operation
All devices operating in parallel are blocked. Depending on the set delay
time for the parallel operation error message, the signaling relay Problem
with parallel operation is activated.
To set the blocking limit for the maximum permitted circulating reactive cur-
rent, proceed as follows:
1. > Configuration > Parallel operation > Press until the
desired parameter is displayed.
ð Blocking.
2. Press to increase the value or to reduce it.
3. Press .
ð The blocking limit for the maximum permitted circulating reactive current
is set.
Setting tap synchronization
With the tap synchronization method, you need to designate one voltage
regulator as the master and all others as followers. The master handles volt-
age regulation and transmits its latest tap positions to all followers via the
CAN bus. The followers compare the tap position received with their own tap
position. If the set permissible tap difference between the tap position re-
ceived and their own position is exceeded, the followers switch to the tap po-
sition received from the master. This ensures that the transformers operating
in parallel are always in the same tap position.
For the tap synchronization method, you can select the following options:
7.9.2.2