Siemens SIPROTEC 7SD610 Manual page 346

Technical Data
4.8 Backup Time Overcurrent Protection
Inverse Time Stages (IEC)
Pickup value Ip>
(phases)
(earth)
Pickup value3I0p PICKUP
Time factors
Additional time delays
Tolerances
Pickup and dropout thresholds I
Pickup time 2 ≤ I/I ≤ 20 and T
P
Pickup time 2 ≤ I/3I ≤ 20 and T
0P
Defined times
Pickup value Ip> Dir.I
(directional phases)
Pickup threshold3I0p Dir.
(Earth directional)
Time factors
(directional stages)
Additional time delays
(directional stages)
Tolerances (directional stages)
Pickup and dropout thresholds I
Pickup time 2 ≤ I/I ≤ 20 and T
PDir
Pickup time 2 ≤ I/3I ≤ 20 and T
0PDir
Defined times
Characteristics
Defined times
346
for I = 1 A
N
for I = 5 A
N
for I = 1 A
N
for I = 5 A
N
T Ip Time Dial
(Phases)
T 3I0p TimeDial
(Earth)
T Ip Add (Phases) 0.00 s to 30.00 s
T 3I0p Add (Earth) 0.00 s to 30.00 s
, 3I
P 0P
≥ 1 s
IP
≥ 1 s
3I0P
for I = 1 A
N
for I = 5 A
N
for I = 1 A
N
for I = 5 A
N
T Ip Dir.
(Phases)
T 3I0p Dir. (Earth) 0.05 s to 3.00 s
T Ip Add Dir.
(Phases)
T 3I0p Add Dir.
(Earth)
, 3I
PDir 0PDir
≥ 1 s
IPDir
≥ 1 s
3I0PDir
0.10 A to 4.00 A
or ∞ (ineffective)
0.50 A to 20.00 A
or ∞ (ineffective)
0.05 A to 4.00 A
or ∞ (ineffective)
0.25 A to 20.00 A
or ∞ (ineffective)
0.05 s to 3.00 s
or ∞ (ineffective)
0.05 s to 3.00 s
or ∞ (ineffective)
3 % of setting value or 1 % of nominal current
5 % of setting value or ± 15 ms
5 % of setting value or ± 15 ms
1 % of setting value or 10 ms
0.10 A to 4.00 A
or ∞ (disabled)
0.50 A to 20.00 A
or ∞ (disabled)
0.05 A to 4.00 A
or ∞ (disabled)
0.25 A to 20.00 A
or ∞ (disabled)
0.05 s to 3.00 s
or ∞ (ineffective)
or ∞ (ineffective)
0.00 s to 30.00 s
0.00 s to 30.00 s
3 % of setting value or 1 % of nominal current
5 % of setting value or ± 15 ms
5 % of setting value or ± 15 ms
1 % of setting value or 10 ms
See Figure 4-2
1 % of setting value or 10 ms
C53000-G1176-C145-6, Release date 02.2011
Increment 0.01 A
Increment 0.01 A
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increment 0.01 A
Increment 0.01 A
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
SIPROTEC, 7SD610, Manual