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5 Commissioning
Maschinenfabrik Reinhausen 2014
47
2374092/04 EN
TAPCON® 260
If the control deviation appears in the opposite direction, change the polarity
of the current transformer.
8.
Set the
Z compensation
and
Z compensation limit value
parameters
to the desired operating values.
ð
The function test for Z compensation is complete.
Also refer to
2
2
Setting the Z compensation limit value [
Checking parallel operation of several banks of transformers
This section describes how you can run the function test for parallel opera-
tion of several banks of transformers .
To obtain perfect functioning in parallel operation, the voltage regulator must
be commissioned in simplex mode. Make sure that the conditions below
have been fulfilled.
▪
All motor-drive units of the banks of transformers (ED1...ED3) are in the
same tap position.
▪
All devices are set to the same operating parameters for
desired value
,
circulating reactive current sensitivity
and
delay time T1
.
▪
The circulating reactive current sensitivity on all devices must be set to
0 %.
▪
The
circulating reactive current blocking
parameter must be set to
20 %.
▪
You must undertake all settings in manual mode.
▪
Each device needs an individual address on the CAN bus.
Checking circulating reactive current sensitivity
This section describes how to run the function test for circulating reactive
current sensitivity.
1.
Adjust both transformers in simplex mode to the same actual voltage by
means of the on-load tap-changer.
ð
When both devices are in a state of equilibrium, then the value of
the control deviation dV [%] is smaller than the set
bandwidth
. You
can see this in the main screen if the mark for the measured volt-
age U
actual
is within the bandwidth.
2.
Connect the transformers in parallel and enable the parallel control.
ð
The two devices must still be in a state of equilibrium.
ð
The
Parallel operation
LED on the front panel is illuminated.
5.3.3
Requirements
5.3.3.1
Содержание TAPCON 260
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