Information List; Oscillographic Fault Records; Description - Siemens SIPROTEC 7RW80 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
2.1.4

Oscillographic Fault Records

The Multifunctional Protection with Bay Controller 7RW80 is equipped with a fault memory. The instantaneous
values of measured values
v , v , v , v
A B C AB
are sampled at intervals of 1.0 ms (for 50 Hz) or 0.83 ms (for 60 Hz), and stored in a ring buffer (20 samples
per cycle). For a fault, the data are stored for an adjustable period of time, but not more than 5 seconds. Up to
8 fault records 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 re-
cording of the fault event data can also be started via a binary input or via the serial interface.

2.1.4.1 Description

The data of a fault event can be read out via the device interface and evaluated with the help of the SIGRA 4
graphic analysis software. SIGRA 4 graphically represents the data recorded during the fault event and also
calculates additional information from the measured values. A selection may be made as to whether the volt-
ages are represented as primary or secondary values. Binary signal traces (marks) of particular events, e.g.
„pickup", „tripping" are also represented.
If port B of the device has been configured correspondingly, the fault record data can be imported by a central
controller via this interface and evaluated. Voltages are prepared for a graphic representation. Binary signal
traces (marks) of particular events, e.g. „pickup", „tripping" are also represented.
The retrieval of the fault data by the central controller takes place automatically either after each protection
pickup or after a tipping.
34
Setting Options
Vphph
Vph-n
V1
V2
V1
Vphph
Vph-n
Type of In-
formation
SP
OUT
OUT
, v , v , v , v , V , V
BC CA G X ph-g Syn
Default Setting
Vphph
V1
>Reverse Phase Rotation
Phase rotation ABC
Phase rotation ACB
(depends on the connection type)
C53000-G1140-C233-1, Release date 10.2010
Comments
Opera. Quantity for 59 Overvolt.
Prot.
Opera. Quantity for 27 Undervolt.
Prot.
Comments
SIPROTEC, 7RW80, Manual