MR ETOS TD, Руководство по эксплуатации

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9 Visualization
Maschinenfabrik Reinhausen GmbH 2020 186 4453918/14 EN ETOS
®
TD
voltage regulators as a correction for the control deviation determined on the
basis of the measurement voltage. You can use the circulating reactive cur-
rent sensitivity parameter to decrease or increase this extra control devia-
tion.
The circulating reactive current method is suited to transformers connected
in parallel with a similar nominal output and short-circuit voltage U
K
and to
vector groups with the same and different step voltages. This does not re-
quire any information about the tap position.
Note that the following prerequisites must be met for the "circulating reactive
current minimization" parallel operation method:
▪ You have to use current transformers with the same rated values for all
transformers in parallel operation.
▪ If you wish to operate in parallel operation with existing devices, you have
to activate the Retrofit TAPCON® 2xx [ ► Section 9.21.3, Page 192] pa-
rameter.
For the circulating reactive current minimization parallel operation method
with CAN communication, you have to set the following parameters:
▪ Activate parallel operation
▪ Parallel operation method: Circulating reactive current
▪ CAN bus address
▪ Circulating reactive current sensitivity
▪ Circul. reactive current blocking limit
▪ Error if no communication present
▪ Behavior if no communication present
▪ Parallel operation error delay time