Functions
2.2 Phase Comparison Protection and Ground Differential Protection
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
56
The received pickup and blocking information is compared with the own differential protection information and
element-specific pickup indications are created.
Figure 2-7 Phase comparison protection, receiving the differential protection information from the opposite
end
The following figure shows the formation of the phase-specific pickup of the phase comparison protection.
Figure 2-8 Logic diagram of phase comparison protection for pickup in a grounded system
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