Additional Pararmeters for Three-Winding Transformers and for Grid Coupling Transformers
Parameter: V< Threshold w1
•
Default setting
(_:136) V< Threshold w1
=
90.000 V
Parameter: V< Threshold w2
•
Default setting
(_:150) V< Threshold w2
=
90.000 V
You can find the parameter and information lists in chapter
Parallel control
Parameter: Parallel mode
•
Default setting
(_:14011:161) Parallel mode
=
No mode
With the
Parallel mode
parameter, you can switch the voltage controller into one of the following modes:
No mode
Master
Follower
Circulat. react current
Parameter: Parallel-transfomer id
•
Default setting
(_:14011:168) Parallel-transfomer id
=
1
The
Parallel-transfomer id
parameter indicates the ID of the transformer.
With this parameter, you identify individual transformers in a parallel group. Transformers belonging to the
same parallel group must be uniquely identifiable based on the ID. The unique identification applies to all
transformers which communicate via GOOSE.
Parameter: Parallel mode changeable
•
Default setting
(_:14011:164) Parallel mode changeable
=
by setting
With the
Parallel mode changeable
parameter, you can influence the parallel control
by setting
or
via the setting
controllable
.
Parameter: Force master changeable
•
Default setting
(_:14011:165) Force master changeable
=
by setting
With the
Force master changeable
parameter, you can determine
by setting
or via the setting
controllable
, which device is the Master in the parallel control. In a group of transformers working in
parallel, only one device can be the Master. The presence of a Master is monitored.
Parameter: Maximal tap difference
•
Default setting
(_:14011:166) Maximal tap difference
=
2
With the
Maximal tap difference
parameter, you set the maximum permissible difference of the tap-
changer positions between the transformers of a group.
Parameter: Reactive I control factor
•
Default setting
(_:14011:169) Reactive I control factor
=
1.00
The voltage deviation between the transformers is influenced with the parameter
Reactive I control
factor
. This means that a deviation from one stage exceeds the bandwidth of the voltage controller. This
allows the control deviation D
CRC
, initiated by the circulating reactive current, to be adjusted individually for
every parallel controller.
Parameter:VT supervision
•
Default setting
(_:14011:146) VT supervision
=
on
With the
VT supervision
parameter, you switch the voltage supervision on or off.
Parameter: VT supervision threshold
•
Default setting
(_:14011:147) VT supervision threshold
=
10.0 %
With the
VT supervision threshold
parameter, you set the threshold value for the voltage supervision.
Parameter: VT supervision time delay
6.9.4.7
Control Functions
6.9 Voltage Controller
500
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
Summary of Contents for 6MD85
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