Settings - Siemens SIPROTEC 4 User Manual

Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
active means that the 50-2 or the 50-3 element will only be released if automatic reclosing is not blocked. If
this is not desired, the setting Always is selected so that the 50-2 or the 50-3 element is always active.
The integrated automatic reclosing function of 7SJ62/64 also provides the option to individually determine for
each overcurrent element whether tripping or blocking is to be carried out instantaneously or unaffected by
the AR with the set time delay (see Section
Interaction with the Automatic Reclosing Function (ground)
When reclosing occurs, it is desirable to have high-speed protection against faults with 50N-2 or 50N-3. If the
fault still exists after the first reclosing, the 50N-1 or the 51N element will be initiated with coordinated trip-
ping times, that is, element 50N-2 or 50N-3 will be blocked. At address 1314 50N-2 active or 1316 50N-3
active active it can be specified whether the 50N-2 or the 50N-3 element should be influenced by the
release signal of an internal or external automatic reclosing system. Address with 79 active determines
that the 50N-2 or the 50N-3 element will only operate if automatic reclosing is not blocked. If not desired,
select the setting Always so that the 50N-2 or the 50N-3 element will always operate, as configured.
The integrated automatic reclosing function of 7SJ62/64 also provides the option to individually determine for
each overcurrent element whether tripping or blocking is to be carried out instantaneously or unaffected by
the AR with the set time delay (see Section

Settings

2.2.12
Addresses which have an appended "A" can only be changed with DIGSI, under "Additional Settings".
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding secon-
dary nominal current of the current transformer.
Addr. Parameter
1201 FCT 50/51
1202 50-2 PICKUP
1203 50-2 DELAY
1204 50-1 PICKUP
1205 50-1 DELAY
1207 51 PICKUP
1208 51 TIME DIAL
1209 51 TIME DIAL
1210 51 Drop-out
1211 51 IEC CURVE
1212 51 ANSI CURVE
80
2.16 Automatic Reclosing System
2.16 Automatic Reclosing System
C Setting Options
ON
OFF
1A 0.10 .. 35.00 A; ∞
5A 0.50 .. 175.00 A; ∞
0.00 .. 60.00 sec; ∞
1A 0.10 .. 35.00 A; ∞
5A 0.50 .. 175.00 A; ∞
0.00 .. 60.00 sec; ∞
1A 0.10 .. 4.00 A
5A 0.50 .. 20.00 A
0.05 .. 3.20 sec; ∞
0.50 .. 15.00 ; ∞
Instantaneous
Disk Emulation
Normal Inverse
Very Inverse
Extremely Inv.
Long Inverse
Very Inverse
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Extremely Inv.
Definite Inv.
79).
79).
Default Setting Comments
ON 50, 51 Phase Time Overcur-
rent
2.00 A 50-2 Pickup
10.00 A
0.00 sec 50-2 Time Delay
1.00 A 50-1 Pickup
5.00 A
0.50 sec 50-1 Time Delay
1.00 A 51 Pickup
5.00 A
0.50 sec 51 Time Dial
5.00 51 Time Dial
Disk Emulation Drop-out characteristic
Normal Inverse IEC Curve
Very Inverse ANSI Curve
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016