MR TAPCON 260 - Parallel Operation: CAN Bus Addressing and Conditions; General Conditions for Parallel Operation; Assigning the CAN Bus Address

6 Functions and settings
Maschinenfabrik Reinhausen 2014 912374092/04 EN TAPCON® 260
1. > Configuration > Transformer data > Press until the
desired parameter is displayed.
ð Transformer circuit.
2. Press or to select the required phase difference.
3. Press .
ð The phase difference is set.
Parallel operation of several banks of transformers
In the Parallel operation menu item, you can set the parameters needed for
parallel operation of banks of transformers. Parallel operation of banks of
transformers is used to increase the throughput capacity or short-circuit ca-
pacity in one place.
Compliance with the following general conditions is required for operating
banks of transformers in parallel:
▪ Identical rated voltage
▪ Transformer power ratio (< 3 : 1)
▪ Maximum deviation of short-circuit voltages (U
K
) for transformers con-
nected in parallel < 10 %
▪ Same number of switching groups
You can control up to 16 banks of transformers connected in parallel in one
or 2 groups without detecting the system topology. Information is swapped
between the voltage regulators operating in parallel using the CAN bus. Par-
allel operation is activated using one of 2 status inputs or the control system.
Parallel control can take one of two forms:
▪ Parallel operation following the "Circulating reactive current minimiza-
tion" principle
▪ Parallel operation following the "Tap synchronization" (master/follower)
principle
The following sections describe how you can set the parameters.
Assigning CAN bus address
You can use this parameter to assign a CAN bus address to the device. So
that all devices can communicate using the CAN bus, each device requires a
unique identifier. Addresses can be set from 1 to 16. If the value is set to 0,
then no communication takes place.
To enter the CAN bus address, proceed as follows:
6.10
Conditions for parallel
operation
6.10.1