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Functions
2.4 Backup overcurrent
Addr.
Parameter
2642
IEC Curve
2642
IEC Curve
2643
ANSI Curve
2643
ANSI Curve
2644
51(N)-B PilotBI
2644
67(N)TOC Pil/BI
2650
50-3 OpMo
2651
50-3 PICKUP
2652
50-3 DELAY
2653
50-3 Inrush
2654
50N-3 PICKUP
2655
50N-3 DELAY
2656
50-3 Pilot/BI
Information List
2.4.6
No.
Information
7104
>BLOCK 50-B1
7105
>BLOCK 50-B2
7106
>BLOCK 51-B
88
C
Setting Options
Normal Inverse
Very Inverse
Extremely Inv.
LongTimeInverse
Normal Inverse
Very Inverse
Extremely Inv.
LongTimeInverse
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Very Inverse
Extremely Inv.
Definite Inv.
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Very Inverse
Extremely Inv.
Definite Inv.
NO
YES
NO
YES
ON
Only Emer. prot
OFF
1A
0.10 .. 25.00 A; ∞
5A
0.50 .. 125.00 A; ∞
0.00 .. 30.00 sec; ∞
NO
YES
1A
0.05 .. 25.00 A; ∞
5A
0.25 .. 125.00 A; ∞
0.00 .. 30.00 sec; ∞
NO
YES
Type of
Comments
Informa-
tion
SP
>BLOCK 50-B1 Backup OverCurrent
SP
>BLOCK 50-B2 Backup OverCurrent
SP
>BLOCK 51-B Backup OverCurrent
Default Setting
Comments
Normal Inverse
IEC Curve
Normal Inverse
IEC Curve
Inverse
ANSI Curve
Inverse
ANSI Curve
NO
Instantaneous trip via Pilot
Prot./BI
NO
Instantaneous trip via Pilot
Prot./BI
OFF
50(N)-3 Operating Mode
1.50 A
50-3 Pickup
7.50 A
0.30 sec
50-3 Delay
NO
50-3 Inrush blocking
0.20 A
50N-3 Pickup
1.00 A
2.00 sec
50N-3 Delay
NO
Instantaneous trip via Pilot
Prot./BI
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
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