Siemens siprotec SJ62 User Manual page 98

Figure 2-22 Logic diagram for the directional overcurrent protection: 67-TOC relay element
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
The following figure shows by way of an example the logic diagram for the 67-TOC
relay element of the directional inverse time overcurrent protection of the phase cur-
rents.
2.3 Directional Overcurrent Protection 67, 67N
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