Siemens siprotec 7SJ63 - Page 462

Technical Data
10-16 7SJ63 Manual
C53000-G1140-C120-1
Reset Time Charac-
teristic As Per ANSI
Dropout ANSI without Disk–Emulation approx. [1.05 · I
p
setting value] for I
p
/I
N
>0.3,
Dropout/Pickup (ratio) corresponds to approx. [0.95·pickup
threshold]
ANSI with Disk Emulation approx. [0.90 · I
p
setting value]
Dropout/Pickup (ratio)
Tolerances Dropout Threshold I
p
, I
Ep
2 % of setting value or 50 mA
1
)
Dropout Time for 0.05≤ I/I
p
≤ 0.90 5 % of reference (calculated) value + 2 %
current tolerance, respectively 30 ms
Influencing Vari-
ables
Power Supply Direct Voltage in Range
0.8 ≤ V
PS
/ V
PS nominal
≤ 1.15 1 %
Temperature in Range
23º F ≤ ϑ
amb
≤ 131º F 0.06% /10º F
Frequency in Range
0.95 ≤ f/f
N
≤ 1.05 1 %, referring to reference time
1
) For I
N
= 1 A, divide all limits and increments by 5.
t
Reset
8.8
II
p
⁄()
2.0938
1
–
---------------------------------------



D⋅
=
$16,,19(56(
t
Reset
0.97
II
p
⁄()
2
1
–
---------------------------



D⋅
=
$16,02'(5$7(/<,19
t
Reset
5.82
II
p
⁄()
2
1
–
---------------------------



D⋅
=
$16,(;75(0(/<,19
For all Characteristics
t
RESET
= Reset time in seconds
D = Setting value of the time multiplier
I = Fault Current
I
p
= Setting value of the pickup current
for 0.05 < (I/I
p
) ≤ 0.90
t
Reset
4.32
II
p
⁄()
2
1
–
---------------------------



D⋅
=
$16,9(5<,19(56(
t
Reset
1.03940
II
p
⁄()
1.5625
1
–
---------------------------------------



D⋅
=
$16,'(),1,7(,19
t
Reset
0.831
II
p
⁄()
1.2969
1
–
---------------------------------------



D⋅
=
$16,6+257,19(56(
t
Reset
12.9
II
p
⁄()
1
1
–
---------------------------



D⋅
=
$16,/21*,19(56(
[s]
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