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 8-89
Routing of the Function Keys and CFC Signals
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.
Control Functions
8.8 Transformer Tap Changers
SIPROTEC 5, Overcurrent Protection, Manual 1183
C53000-G5040-C017-8, Edition 07.2017
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