Siemens 7SC80 Manual page 73

[7sj6x-ueberstromst-i-fuer-ph-20061212, 1, en_US]
Figure 2-7
If parameter 1213 MANUAL CLOSE is set to 50 -1 instant. and manual close detection is used, a pickup
causes instantaneous tripping even if the stage is blocked via a binary input.
The same applies to 79 AR 50-1 inst.
The dropout delay only operates when no inrush was detected. An incoming inrush resets an already running
dropout time delay.
[7sj6x_rueckfallverzoegerung_i_gr_ph_260803_he, 1, en_US]
Figure 2-8
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
Logic diagram for the 50-1 overcurrent element for phases
Logic diagram of the dropout delay for 50-1
2.2 Overcurrent Protection 50, 51, 50N, 51N
Functions
73