Control Functions
6.8 Transformer Tap Changers
Example
The following 2 figures show a CFC chart as an example for transformer tap control with the routing of the
function keys for stepping up or stepping down.
[schilocd-280316-01, 2, en_US]
Figure 6-109
To use the function keys, you create 2 user-defined single-point indications (SPS). These are used for the func-
tion keys (for example, <F1>, Higher function key and <F2>, Lower function key) and as the input signals for
the appropriate CFC blocks. In addition, you must use the controllable Cmd. with feedback for the CFC
chart.
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Routing of the Function Keys and CFC Signals
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017