Siemens SIPROTEC 7SJ46 - Page 68

Manual 7SJ46 Technical Data
C53000-K1174-C002-4 68
Overcurrent protection
Setting ranges/increments for definite-time protection
(DT O/C 50/51)
The set times are pure delay times.
Setting ranges/increments for inverse-time protection
(IEC 51 or ANSI 51)
Pickup current I>> (phases) 2 I
N
to 20 I
N
or disabled,
step 0.5 I
N
Pickup current I> (phases) 0.5 I
N
to 6.2 I
N
or disabled,
step 0.1 I
N
Pickup current IEp>
(earth calculated)
0.5 I
N
to 6.2 I
N
or disabled,
step 0.1 I
N
Delay times T I>> 0 to 1575 ms, step 25 ms
Delay times T I> 0 to 6300 ms, step 100 ms
Pickup current Ip (phases) 0.5 I
N
to 4 I
N
or disabled,
step 0.1 I
N
Pickup current IEp>
(earth calculated)
0.5 I
N
to 4 I
N
or disabled,
step 0.1 I
N
Delay times T Ip (IEC) 0.05 to 3.15 s, step 0.05 s
Delay times D (ANSI) 0.5 to 15.00 s, step 0.25 s
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