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2. OPERATION LOGIC
6 DBF Breaker Failure Protection GEK-106168E
Group Status Comment
2.7 Optional Exp. Board
2.8 Input Nº 7 Digital Input #7 Status
2.9 Input Nº 8 Digital Input #8 Status
2.10 Input Nº 9 Digital Input #9 Status
2.11 Input Nº 10 Digital Input #10 Status
2.12 Input Nº 11 Digital Input #11 Status
2.13 Input Nº 12 Digital Input #12 Status
2.14 Input Nº 13 Digital Input #13 Status
2.15 Input Nº 14 Digital Input #14 Status
3.0 Breaker Failure Logic BF Logic = 3P
3.1 Hi-Set A Pickup Output of Hi-Set current detector ph A
3.2 Hi-Set B Pickup Output of Hi-Set current detector ph B
3.3 Hi-Set C Pickup Output of Hi-Set current detector ph C
3.4 50BF Pole A Initiate CC1 Dig. Input ON (default configuration)
3.5 50BF Pole B Initiate CC2 Dig. Input ON (default configuration)
3.6 50BF Pole C Initiate CC3 Dig. Input ON (default configuration)
3.7 Lo-Set A Pickup Output of Lo-Set current detector ph A
3.8 Lo-Set B Pickup Output of Lo-Set current detector ph B
3-9 Lo-Set C Pickup Output of Lo-Set current detector ph C
3.10 50BF 3 Phase Initiate CC7 Dig. Input ON (default configuration)
3.11 50BF Neutral Initiate Output of Neutral current detector
3.12 Internal Arc A Pickup Output of AND 16 in figure 1
3.13 Internal Arc B Pickup Output of AND 17 in figure 1
3.14 Internal Arc C Pickup Output of AND 18 in figure 1
3.15
4.0 Pickup
Any BF signal is activated. Output of OR
7infigure1
4.1 Trip 1
Any unit (except Internal Arc) has tripped.
Output of OR 6 in figure 1
4.2 Trip 2
Same as Trip 1 when 1 step is selected.
2
nd
stage when 2 steps are selected.
Output of AND 14 / 15 in figure 1
4.3 Internal Arc
Trip from Internal Arc unit. Output of
Timer 4 in figure 1
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
5.0 Phase A Trip Output of Timer 1 phase A in figure 1
5.1 Phase B Trip Output of Timer 1 phase B in figure 1
5.2 Phase C Trip Output of Timer 1 phase C in figure 1
5.3 Three-Pole Trip with Current Output of Timer 2 in figure 1
5.4 Three-Pole Trip without Current Output of Timer 3 in figure 1
5.5 Second Stage Trip Output of AND 14 / 15 in figure 1
5.6
5.7
5.8