Siemens siprotec SJ62 User Manual page 67

2 Functions
Figure 2-6 Logic of the dropout delay for 50-1 phase current element
Figure 2-7 Logic diagram of the 50N-1 current element for ground
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If parameter MANUAL CLOSE is set to 50N-1 instant. and manual close detection
applies, the trip is initiated as soon as the pickup conditions arrive, even if the element
is blocked via binary input. The same applies to 79AR 50N-1 instantaneous.
The pickup values of each element 50-1, 50-2 for the phase currents and 50N-1, 50N-
2 for the ground current and the valid delay times for each element can be set individ-
ually.
The dropout delay only operates if no inrush was detected. An arriving inrush will reset
an already running dropout delay time.
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015