Siemens SIPROTEC Manual page 600

Technical Data
4.9 Earth Fault Protection in Earthed Systems (optional)
Inverse Current Stage (ANSI)
Pickup value 3I
0P
Time factor D
3I0P
Additional time delay T
3I0P add
Characteristics
Tolerances
Pickup and dropout thresholds 3I
Pickup time for 2 ≤ I/3I
0P
Defined times
Inverse Current Stage (logarithmic inverse)
Pickup value 3I
0P
Start current factor 3I
0P FACTOR
Time factor T
3I0P
Maximum time T
3I0P max
Minimum time T
3I0P min
Additional time delay T
3I0P add
Characteristics
Tolerances
Pickup and dropout thresholds 3I
Pickup time for 2 ≤ I/3I
0P
Defined times
600
for I = 1 A
N
for I = 5 A
N
0p
≤ 20 and D ≥ 1 s
3I0P
for I = 1 A
N
for I = 5 A
N
0p
≤ 20 and T ≥ 1 s
3I0P
0.05 A to 25.00 A
or
0.003 A to 25.000 A
0.25 A to 125.00 A
or
0.015 A to 125.000 A
0.50 s to 15.00 s
or ∞ (ineffective)
0.00 s to 30.00 s
or ∞ (ineffective)
See Figure 4-3 and 4-4
3 % of set value, or 1 % nominal current
5 % of set value ± 15 ms
1 % of set value or 10 ms
0.05 A to 25.00 A
or
0.003 A to 25.000 A
0.25 A to 125.00 A
or
0.015 A to 125.000 A
1.0 to 4.0
0.05 s to 15.00 s; ∞
0.00 s to 30.00 s
0.00 s to 30.00 s
0.00 s to 30.00 s
or ∞ (ineffective)
See Figure 4-5
3 % of set value, or 1 % nominal current
5 % of set value ± 15 ms
1 % of setting value or 10 ms
C53000-G1176-C169-5, Release date 02.2011
Increments 0.01 A
Increments 0.001 A
Increments 0.01 A
Increments 0.001 A
Increments 0.01 s
Increments 0.01 s
Increments 0.01 A
Increments 0.001 A
Increments 0.01 A
Increments 0.001 A
Increments 0.1
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
SIPROTEC, 7SD5, Manual