Siemens siprotec 7SA6, Manual

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Technical Data
10-32
7SA6 Manual
C53000-G1176-C156
Time factors D
IP
(phases) 0.05 s to 3.00 s (steps 0.01 s)
or
∞
(ineffective)
D
3I0P
(earth) 0.05 s to 3.00 s (steps 0.01 s)
or
∞
(ineffective)
Additional time delays T
IPadd
(phases.)0.00 s to 30.00 s (steps 0.01 s)
T
3I0Padd
(earth) 0.00 s to 30.00 s (steps 0.01 s)
Characteristics see Figure 10-1 (in Section 10.5)
Tolerances currents Pick-up at 1.05
≤
I/I
P
≤
1.15;
or 1.05
≤
I/3I
0P
≤
1.15
times 5 % ± 15 ms for 2
≤
I/I
P
≤
20
and D
IP
/s
≥
1;
or 2
≤
I/3I
0P
≤
20
and T
3I0P
/s
≥
1
def. times 1 % of set value or 10 ms
The set times are pure delay times with definite time protection.
1
) Secondary values based on I
N
= 1 A; for I
N
= 5 A they must be multiplied by 5.
Stub Protection Pick-up values I
Ph STUB
> (phases) 0.10 A to 25.00 A
1
) (steps 0.01 A)
or
∞
(ineffective)
3I
0 STUB
> (earth) 0.05 A to 25.00 A
1
) (steps 0.01 A)
Time delays T
IPhSTUB
0.00 s to 30.00 s (steps 0.01 s)
or
∞
(ineffective)
T
3I0STUB
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
Pick-up time approx. 25 ms
Drop-off time approx. 30 ms
Tolerances currents 3 % of set value or 1% nominal current
times 1 % of set value or 10 ms
The set times are pure delay times.
1
) Secondary values based on I
N
= 1 A; for I
N
= 5 A they must be multiplied by 5.