Siemens Argus 7SR21 - Figure 3.5.3-1 Logic Diagram: 51 SEF Time Delayed Element; Figure 3.5.3-2 Logic Diagram: 51 SEF Time Delayed Element Compensated Networks

7SR210 & 7SR220 Description of Operation
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Figure 3.5.3-1 Logic Diagram: 51 SEF Time Delayed Element
Figure 3.5.3-2 Logic Diagram: 51 SEF Time Delayed Element Compensated Networks