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Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
[7sc80-abhueberstromzeit-phase-131106, 1, en_US]
Figure 2-11
If an ANSI characteristic is configured, parameter 1209 51 TIME DIAL is used instead of parameter 1208 51
TIME DIAL.
If parameter 1213 MANUAL CLOSE is set to 51 instant. and manual close detection is used, a pickup
causes instantaneous tripping even if the element is blocked via a binary input.
The same applies to 79 AR 51 inst.
76
Logic diagram of the inverse time overcurrent protection for phases
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
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