Siemens siprotec 7SA6 - Page 688

Technical Data
10-20 7SA6 Manual
C53000-G1176-C156
Tolerances current 3 % of set value or 1% of nominal current
time 1 % of set value or 10 ms
The set times are pure delay times.
1) Secondary values based on I
N
=1A;forI
N
= 5 A the current values must be multiplied by 5.
Overcurrent stage
(definite time)
Pickup value 3I
0
> 0.05 A to 25.00 A
1
) (steps 0.01 A)
or 0.003 A to 25.000 A
1
) (steps 0.001 A)
Delay time T
3I0>
0.00 s to 30.00 s (steps 0.01 s)
or
∞ (ineffective)
Drop-off to pick-up ratio approx. 0.95 for I/I
N
≥ 0.5
Pickup time (for 1.5* Setting Value) approx. 45 ms
(for
≥ 2 * Setting Value) approx. 35 ms
Drop-off time approx. 30 ms
Tolerances current 3 % of set value or 1% of nominal current
time 1 % of set value or 10 ms
The set times are pure delay times.
1) Secondary values based on I
N
=1A;forI
N
= 5 A the current values must be multiplied by 5.
Overcurrent stage
(inverse time acc.
IEC)
Pickup value 3I
0P
0.05 A to 25.00 A
1
) (steps 0.01 A)
or 0.003 A to 25.000 A
1
) (steps 0.001 A)
Time factor T
3I0P
0.05 s to 3.00 s (steps 0.01 s)
or
∞ (ineffective)
Additional time delay T
3I0Pverz
0.00 s to 30.00 s (steps 0.01 s)
or
∞ (ineffective)
Characteristics see Figure 10-1
Tolerances current pickup at 1.05
≤ I/3I
0P
≤ 1.15
times 5 % ± 15 ms for 2
≤ I/3I
0P
≤ 20
and T
3I0P
/s ≥ 1
1) Secondary values based on I
N
=1A;forI
N
= 5 A the current values must be multiplied by 5.
Overcurrent stage
(inverse time acc.
ANSI)
Pickup value 3I
0P
0.05 A to 25.00 A
1
) (steps 0.01 A)
or 0.003 A to 25.000 A
1
) (steps 0.001 A)
Time factor D
3I0P
0.50 s to 15.00 s (steps 0.01 s)
or
∞ (ineffective)
Additional time delay T
3I0Pverz
0.00 s to 30.00 s (steps 0.01 s)
or
∞ (ineffective)
Characteristics see Figures 10-2 and 10-3
Tolerances current pickup at 1.05
≤ I/3I
0P
≤ 1.15
times 5 % ± 15 ms for 2
≤ I/3I
0P
≤ 20
and D
3I0P
/s ≥ 1
1) Secondary values based on I
N
=1A;forI
N
= 5 A the current values must be multiplied by 5.
Overcurrent stage
(logarithmic in-
verse)
Pickup value 3I
0P
0.05 A to 25.00 A
1
) (steps 0.01 A)
or 0.003 A to 25.000 A
1
) (steps 0.001 A)
Startstromfaktor 3
I0P FAKTOR
1.0 to 4.0 (steps 0.1)