Information List; Oscillographic Fault Records; Description - Siemens SIPROTEC 4 User Manual

Functions
2.1 General
Addr. Parameter
614A OP. QUANTITY 59
615A OP. QUANTITY 27
2.1.3.4

Information List

No. Information
5145 >Reverse Rot.
5147 Rotation ABC
5148 Rotation ACB

Oscillographic Fault Records

2.1.4
The Multi-Functional Protective Relay with Local Control 7SJ62/64 is equipped with a fault record memory. The
instantaneous values of the measured quantities
i , i , i , i or i
A B C N NS
(voltages depending on connection) are sampled in a 1.25 ms grid (for 50 Hz) and stored in a ring buffer (16
sampled values per period). In the event of a fault, the data are recorded for a set period of time, but not
longer than 5 seconds. The total duration of recording amounts to up to 20 seconds. A minimum of 8 faults
can be recorded in this buffer. The fault record memory is automatically updated with every new fault, so no
acknowledgment for previously recorded faults is required. In addition to protection pickup, the fault record
buffer can also be started via a binary input or the 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
measured values. Currents and voltages 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 and voltages
are referred to their maximum values, scaled to their rated values and prepared for graphic representation.
Signals are additionally 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.
NOTE
i
i
The signals used for binary tracks can be configured in DIGSI.
48
C Setting Options
Vphph
Vph-n
V1
V2
V1
Vphph
Vph-n
Type of
Informa-
tion
SP
OUT
OUT
and u , v , v , v or. 3 · v and v
A B C N 0
Default Setting
Vphph
V1
Comments
>Reverse Phase Rotation
Phase rotation ABC
Phase rotation ACB
(only 7SJ623/624/625/626 and 7SJ64)
SYN
Comments
Opera. Quantity for 59
Overvolt. Prot.
Opera. Quantity for 27
Undervolt. Prot.
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016