Functions
2.7 Teleprotection for Distance Protection (optional)
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
208
Figure 2-98 Receive circuit of pilot wire comparison logic
The isolation voltage of the pilot wires and the binary inputs and outputs must also be taken into account. In the
event of an earth fault the induced longitudinal voltage must neither exceed 60% of the isolation voltage of the
pilot wires nor 60% of the isolation of the device. The pilot wire comparison is therefore only suited for short
lines.
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