Siemens siprotec 7SD5, User Manual

Page: 556 / 698

4 Technical Data
556
7SD5 Manual
C53000-G1176-C169-1
Inverse Time Overcurrent Stage (IEC)
Inverse Time Overcurrent Stage (ANSI)
Pickup value 3 I
0
> (earth) for I
N
= 1 A 0.05 A to 25.00 A
Or
∞
(ineffective)
Increments 0.01 A
for I
N
= 5 A 0.25 A to 125.00 A
Or
∞
(ineffective)
Delay T
I Ph
> (phases) 0.00 s to 30.00 s
Or
∞
(ineffective)
Increments 0.01 s
Delay T
3 I 0
> (earth) 0.00 s to 30.00 s
Or
∞
(ineffective)
Increments 0.01 s
Dropout Ratio Approx. 0.95 for I / I
N
≥
0.5
Pickup times (fast relays/high-speed relays) approx. 30/25 ms
Dropout times Approx. 30 ms
Tolerances Currents 3 % of setting value or 1 % nominal current
Times 1 % of setting value or 10 ms
The set times are pure delay times
Pickup value I
P
(phases) for I
N
= 1 A 0.10 A to 4.00 A
or
∞
(ineffective)
Increments 0.01 A
for I
N
= 5 A 0.50 A to 20.00 A
or
∞
(ineffective)
Pickup value 3 I
0P
(earth) for I
N
= 1 A 0.05 A to 4.00 A
or
∞
(ineffective)
Increments 0.01 A
for
I
N
= 5 A 0.25 A to 20.00 A
or
∞
(ineffective)
Time factors T
I P
(phas-
es)
0.05 s to 3.00 s
or
∞
(ineffective)
Increments 0.01 s
T
3 I 0P
(earth)
0.05 s to 3.00 s
or
∞
(ineffective)
Increments 0.01 s
Additional time delays T
I P delayed
(phases)
0.00 s to 30.00 s Increments 0.01 s
T
3 I 0P delayed
(earth)
0.00 s to 30.00 s Increments 0.01 s
Characteristics See Figure 4-1
Tolerances currents Pickup values at 1.05
≤
I / I
P
≤
1.15
or 1.05
≤
I
/3
I
0P
≤
1.15
Tolerances times 5 %
±
15 ms for 2
≤
I
/
I
P
≤
20 and T
I P
/s
≥
1
or 2
≤
I /3 I
0P
≤
20 and T
3 I 0P
/s
≥
1
Defined times 1 % of setting value or 10 ms
Pickup value I
P
(phases) for I
N
= 1 A 0.10 A to 4.00 A
or
∞
(ineffective)
Increments 0.01 A
for
I
N
= 5 A 0.50 A to 20.00 A
or
∞
(ineffective)
Pickup value 3 I
0P
(earth) for I
N
= 1 A 0.05 A to 4.00 A
or
∞
(ineffective)
Increments 0.01 A
for I
N
= 5 A 0.25 A to 20.00 A
or
∞
(ineffective)
www
. ElectricalPartManuals
. com