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
2.16 Automatic Reclosing System 79
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
2.16 Automatic Reclosing System 79
Settings
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
C
Setting Options
Default Setting
Comments
1201
FCT 50/51
ON
OFF
ON
50, 51 Phase Time Overcur-
rent
1202
50-2 PICKUP
1A
0.10 .. 35.00 A; ∞
2.00 A
50-2 Pickup
5A
0.50 .. 175.00 A; ∞
10.00 A
1203
50-2 DELAY
0.00 .. 60.00 sec; ∞
0.00 sec
50-2 Time Delay
1204
50-1 PICKUP
1A
0.10 .. 35.00 A; ∞
1.00 A
50-1 Pickup
5A
0.50 .. 175.00 A; ∞
5.00 A
1205
50-1 DELAY
0.00 .. 60.00 sec; ∞
0.50 sec
50-1 Time Delay
1207
51 PICKUP
1A
0.10 .. 4.00 A
1.00 A
51 Pickup
5A
0.50 .. 20.00 A
5.00 A
1208
51 TIME DIAL
0.05 .. 3.20 sec; ∞
0.50 sec
51 Time Dial
1209
51 TIME DIAL
0.50 .. 15.00 ; ∞
5.00
51 Time Dial
1210
51 Drop-out
Instantaneous
Disk Emulation
Disk Emulation
Drop-out characteristic
1211
51 IEC CURVE
Normal Inverse
Very Inverse
Extremely Inv.
Long Inverse
Normal Inverse
IEC Curve
1212
51 ANSI CURVE
Very Inverse
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Extremely Inv.
Definite Inv.
Very Inverse
ANSI Curve
2.2.12
Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
80
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016
Summary of Contents for SIPROTEC 4
Page 8: ...8 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 18: ...18 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 30: ...30 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 540: ...540 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 594: ...594 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 720: ...720 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...