Siemens SIPROTEC 7RW80 User Manual

Functions
2.1 General
SIPROTEC, 7RW80, Manual
C53000-G1140-C233-1, Release date 10.2010
34
2.1.3.4 Information List
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
A
, v
B
, v
C
, v
AB
, v
BC
, v
CA
, v
G
, v
X
, V
ph-g
, V
Syn
(depends on the connection type)
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.
614A OP. QUANTITY 59 Vphph
Vph-n
V1
V2
Vphph Opera. Quantity for 59 Overvolt.
Prot.
615A OP. QUANTITY 27 V1
Vphph
Vph-n
V1 Opera. Quantity for 27 Undervolt.
Prot.
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 Setting Options Default Setting Comments

Siemens SIPROTEC 7RW80 Specifications

General

Brand	Siemens
Model	SIPROTEC 7RW80
Category	Relays
Language	English