MICROELETTRICA MC30-R2, Operation Manual

Page: 16 / 38

MC30-R2
Doc. N°
MO-0462-ING
Copyright 2012 FW: 1290.37.01.x Date 06.09.2022 Rev. 1 Pag. 16 of 38
3.6 - Io>> (2F51N) - Second Earth Fault protection level
FuncEnab → Enable [Disable / Enable]
Options
→
BI Disable [Disable / Enable]
→ Trg Enable [Disable / Enable]
→ Sh1 No [No / Yes]
→ Sh2 No [No / Yes]
→
Sh3 No [No / Yes]
→ Sh4 No [No / Yes]
TripLev → Io>> 0.01 Ion (0.01  9.99) step 0.01 Ion
Timers
→
tIo>> 0.05 s
(0.05  60.00)
step 0.01 s
Description of variables
FuncEnab : If disable the function is disactivated
BI : Operation controlled by Blocking Digital Input
Trg : Function operation triggers the oscillographic wave form capture
(see § Oscillographic Recording)
Sh1 : Tripping of this function (2F51N) starts (Yes) or not (No) the first reclosure shot.
Sh2 : Tripping of this function (2F51N) starts (Yes) or not (No) the 2 nd reclosure shot.
Sh3 : Tripping of this function (2F51N) starts (Yes) or not (No) the 3 rd reclosure shot.
Sh4 : Tripping of this function (2F51N) starts (Yes) or not (No) the 4 th reclosure shot.
Io>> : Minimum Zero Sequence Residual Current Pick-up level
tIo>> : Trip time delay
3.7 - IoH (3F51N) - Third Earth Fault protection level
FuncEnab
→
Enable [Disable / Enable]
Options → BI Disable [Disable / Enable]
→ Trg Enable [Disable / Enable]
→ Sh1 No [No / Yes]
→ Sh2 No [No / Yes]
→ Sh3 No [No / Yes]
→ Sh4 No [No / Yes]
TripLev
→
IoH 0.01 Ion (0.01
 9.99)
step 0.01 Ion
Timers → tIoH 0.05 s (0.05  60.00) step 0.01 s
Description of variables
FuncEnab : If disable the function is disactivated
BI : Operation controlled by Blocking Digital Input
Trg : Function operation triggers the oscillographic wave form capture
(see § Oscillographic Recording)
Sh1 : Tripping of this function (3F51N) starts (Yes) or not (No) the first reclosure shot.
Sh2 : Tripping of this function (3F51N) starts (Yes) or not (No) the 2 nd reclosure shot.
Sh3 : Tripping of this function (3F51N) starts (Yes) or not (No) the 3 rd reclosure shot.
Sh4 : Tripping of this function (3F51N) starts (Yes) or not (No) the 4 th reclosure shot.
IoH : Minimum Zero Sequence Residual Current Pick-up level
tIoH : Trip time delay