Siemens SIPROTEC 4 7SD80 Manual page 269

Inverse Time Current Elements (IEC)
Pickup value 51-B PICKUP
(phases)
Pickup value 51N-B PICKUP
(ground)
Time multipliers
Additional time delays
Tolerances
Pickup, dropout thresholds Ι
Pickup time 2 ≤ Ι/Ι ≤ 20 and T
P
Pickup time 2 ≤ Ι/3Ι ≤ 20 and T
0P
defined times
Pickup value 67-TOC PICKUP
directional phases
Pickup value 67N-TOC PICKUP
(directional ground)
Time multipliers
(directional phases)
Additional time delays
(directional phases)
Tolerances (directional phases)
Pickup, dropout thresholds Ι
Pickup time 2 ≤ Ι/Ι ≤ 20 and T
Pdir
Pickup time 2 ≤ Ι/3Ι ≤ 20 and T
0Pdir
defined times
Characteristics
defined times
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
for Ι = 1 A
Nom
for Ι = 5 A
Nom
for Ι = 1 A
Nom
for Ι = 5 A
Nom
51-B TD IEC
(phases)
51N-B TD IEC
(ground)
51-B AddT-
DELAY (phases)
51N-B AddT-
delay (ground)
, 3Ι
P 0P
≥ 1 s
ΙP
≥ 1 s
3Ι0P
for Ι = 1 A
Nom
for Ι = 5 A
Nom
for Ι = 1 A
Nom
for Ι = 5 A
Nom
67-TOC TD IEC
(phases)
67N-TOC TD
IEC (ground)
67-TOC
AddTDel.
(phases)
67N-TOC
AddTDel
(ground)
, 3Ι
Pdir 0Pdir
≥ 1 s
ΙPdir
≥ 1 s
3Ι0Pdir
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)
0.00 s to 30.00 s
0.00 s to 30.00 s
3 % of setting value or 1 % nominal current
5 % of setting value ± 15 ms
5 % of setting value ± 15 ms
1 % of setting value or 10 ms
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)
0.00 s to 30.00 s
0.00 s to 30.00 s
3 % of setting value or 1 % nominal current
5 % of setting value ± 15 ms
5 % of setting value ± 15 ms
1 % of setting value or 10 ms
see Figure 4-3
1 % of setting value or 10 ms
Technical Data
4.7 Time Overcurrent Protection
Increments 0.01 A
Increments 0.01 A
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 A
Increments 0.01 A
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
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