If the function detects a broken conductor, it generates a phase-specific indication, for example
46BC
detect. Ia
or
46BC detect. Va
. The indication can be sent after a delay time. The delay time can be set.
The following logic diagram shows the functionality of broken conductor detection.
[7sc80_leiterbrucherkenn-16012013, 1, en_US]
Figure 2-70
Logic of the Broken Conductor Detection for Current and Voltage Connections
Inrush-Current Detection
When using the 7SC80 multifunctional protection with control to protect a transformer feeder, for example,
large inrush currents must be expected when energizing the transformer. These inrush currents can be several
2.12.1.6
Functions
2.12 Monitoring Functions
SIPROTEC Compact, 7SC80, Manual 231
E50417-G1140-C486-A8, Edition 07.2017
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