4.10.1
SOTF – Settings via DiggiMEC or via Smart view
⚙
1. ▷
Activate the protection stage and select whether it shall operate as a supervision or a
protection function, see ╚═▷ “4.1 »Prot« – General Protection Module”.
2. ▷
Set the activating condition, as described at the beginning of this chapter:
• [Protection Para / SOTF] »SOTF . Enabling« =•
Available options depend on device variant:
◦ “Close Command”, “Breaker Pos.”.◦
3. ▷
Set the trigger mode by selecting which pickup signal shall trigger the »SOTF« module:
• [Protection Para / SOTF] »SOTF . Trigger« =•
Options:
◦ “I> . Pickup” — Pickup of the »I>« phase overcurrent.◦
◦ “I>> . Pickup” — Pickup of the »I>>« phase overcurrent.◦
◦ “I>>> . Pickup” — Pickup of the »I>>>« phase overcurrent.◦
◦ “Ipeak> . Pickup” — Pickup of the »Ipeak>« peak overcurrent.◦
◦ “Prot . Pickup” — General Pickup (issued by the »Prot« module).◦
Note that depending on your other settings, the selected protection pickup can be
(temporarily) blocked by the Inrush Blocking function. In this case, the »SOTF« does not
get triggered, and the protection concept should take care of this.
4. ▷
Specify the activity duration (in seconds). »SOTF« is active for this period of time after
the circuit breaker has been closed manually after a restart in CT-powered operation:
• [Protection Para / SOTF] »SOTF . t-enable«.•
5. ▷
Specify the tripping delay (in seconds). (A typical setting for this is “0 seconds”, i. e.
instantaneous tripping.)
• [Protection Para / SOTF] »SOTF . t«.•
168 WIC1 WIC1-1.0-EN-MAN
4 Protective Elements
4.10.1 SOTF – Settings via DiggiMEC or via Smart view
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