
Functions
2.1 General
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
41
2.1.3.4
Information List
2.1.4
Oscillographic Fault Records
The Multi-Functional Protection with Control 7SJ61 is equipped with a fault record memory. The instantaneous
values of the measured quantities
i
A
, i
B
, i
C
, i
N
or i
Ns
are sampled at intervals of 1.25 ms (for 50 Hz) or 1.04 ms (for 60 Hz), and stored in a ring buffer (16 samples
per cycle). In the case of a fault, the data is recorded for a set period of time, but not for more than 5 seconds.
The total duration of recording amounts to up to 20 seconds. Up to 8 fault records can be recorded in this buffer.
The fault record memory is automatically updated with every new fault, so that there is no acknowledgment for
previously recorded faults required. The fault record buffer can also be started with protection pickup, via binary
input, via PC interface, or a serial interface.
2.1.4.1
Description
The data can be retrieved via the serial interfaces by means of a personal computer and evaluated with the
protection data processing program DIGSI and the graphic analysis software SIGRA 4. The latter graphically
represents the data recorded during the system fault and also calculates additional information from the mea-
sured values. Currents can be presented as desired as primary or secondary values. Signals are additionally
recorded as binary tracks (marks) e.g. "pickup", "trip".
If the device has a serial system interface, the fault recording data can be passed on to a central device via this
interface. The evaluation of data is done by appropriate programs in the central device. Currents are referred
to their maximum values, scaled to their rated values and prepared for graphic presentation. Signals are addi-
tionally recorded as binary tracks (marks) e.g. "pickup", "trip".
Transfer to a central device can be polled automatically, either after each fault detection by the protection, or
only after a trip.
266
T 52 BREAKTIME
1 .. 600 ms
80 ms
Breaktime (52 Breaker)
267
T 52 OPENING
1 .. 500 ms
65 ms
Opening Time (52 Break-
er)
276
TEMP. UNIT
Celsius
Fahrenheit
Celsius
Unit of temperature mea-
surement
280
Holmgr. for
Σ
i
NO
YES
NO
Holmgreen-conn. (for fast
sum-i-monit.)
613A
50N/51N/67N w.
Ignd (measured)
3I0 (calcul.)
Ignd (measured)
50N/51N/67N Ground
Overcurrent with
No.
Information
Type of In-
formation
Comments
5145
>Reverse Rot.
SP
>Reverse Phase Rotation
5147
Rotation ABC
OUT
Phase rotation ABC
5148
Rotation ACB
OUT
Phase rotation ACB
Addr.
Parameter
C
Setting Options
Default Setting
Comments
Содержание SIPROTEC 7SJ61
Страница 368: ...Technical Data 4 22 Dimensions SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 368 ...
Страница 436: ...Appendix A 11 Measured Values SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 436 ...
Страница 438: ...Literature SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 438 ...
Страница 450: ...Glossary SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 450 ...
Страница 454: ...Index SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 454 ...