Siemens SIPROTEC 4 7UT6 Series Manual page 417

Tolerances with definite time (IEC)
Currents
Times
Tolerances with definite time (ANSI)
Times
The set times are pure delay times.
1) Secondary values for Ι
2) With one 3-phase measuring location and Ι/Ι
Operating Times of the Definite Time Stages
7UT612
Pickup time / dropout time phase current stages
Pickup time at frequency
without inrush restraint, min.
without inrush restraint, typical
with inrush restraint, min.
with inrush restraint, typical
Dropout time, typical
Pickup time / dropout time residual current stages
Pickup time at frequency
without inrush restraint, min.
without inrush restraint, typical
with inrush restraint, min.
with inrush restraint, typical
Dropout time, typical
7UT613/63x
Pickup time / dropout time phase current stages
Pickup time at frequency
without inrush restraint,- 2 x Pickup Value
without inrush restraint,- 10 x Pickup Value
with inrush restraint,- 2 x Pickup Value
with inrush restraint,- 10 x Pickup Value
Dropout time, approx.
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
2)
Pickup
5 % ± 15 ms
5 % ± 45 ms
for 2 ≤ Ι/Ι
and T
or 2 ≤ Ι/3Ι
and T
2)
5 % ± 15 ms
5 % ± 45 ms
for 2 ≤ Ι/Ι
for 2 ≤ Ι/Ι
and D
and D
= 1 A; for Ι = 5 A the currents must be multiplied by 5.
N N
= 1 A/5 A
N
4.4 Time Overcurrent Protection for Residual Current
at 1.05 ≤ Ι/Ι
or 1.05 ≤ Ι/3Ι0P ≤
1.15
at f = 50/60 Hz
N
at f = 16.7 Hz
N
≤ 20
P
/s ≥ 1;
ΙP
≤ 20
0P
/s ≥ 1
3Ι0P
at f = 50/60 Hz
N
atf = 16.7 Hz
N
≤ 20
P
≤ 20
P
/s ≥ 1;
ΙP
/s ≥ 1
3Ι0P
50 Hz 60 Hz
20 ms 18 ms
25 ms 23 ms
40 ms 35 ms
45 ms 40 ms
30 ms 30 ms
50 Hz 60 Hz
40 ms 35 ms
45 ms 40 ms
40 ms 35 ms
45 ms 40 ms
30 ms 30 ms
50 Hz 60 Hz
26 ms 22 ms
16 ms 17 ms
44 ms 39 ms
36 ms 31 ms
33 ms 30 ms
Technical Data
≤ 1.15;
P
16,7 Hz
47 ms
19 ms
105 ms
77 ms
51 ms
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