Siemens SIPROTEC 7SD610 User Manual

2 Functions
252
7SD610 Manual
C53000-G1176-C145-4
The information overviews below show you which information is available for each
device.
2.17.7 Measured values constellation
2.17.7.1 Functional Description
The measured values constellation of both possible devices are showed here by eval-
uating the device (see table 2-14). Information on the second device is given in the
Appendix.
The computation of this measured values constellation is also performed during an ex-
isting system fault at an interval of approx. 2 s.
Table 2-14 Measured values constellation for device 1
2.17.8 Oscillographic Fault Records
2.17.8.1 Function Description
The 7SD610 differential protection is equipped with a fault recording function. The in-
stantaneous values of measured values
i
L1
, i
L2
, i
L3
, 3
i0
, u
L1
, u
L2
, u
L3
, 3 u
0
or u
en
or u
x
as well asI
diffL1
, I
diffL2
, I
diffL3
, I
stabL1
, I
stabL2
,
I
stabL3
(voltages depending on the connection) are sampled at intervals of 1 ms (for 50 Hz)
and stored in a circulating buffer (20 samples per cycle). For a fault, the data are
stored for an adjustable period of time, but no more than 5 seconds per fault. A total
of 8 faults can be saved during a total time of 15s. The fault record memory is auto-
matically updated with every new fault, so that no acknowledgment is required. The
storage of fault values can be started by pickup of a protective function, as well as via
binary input and via the serial interface.
No. Information Type of In-
formation
Description
7761 „Relay ID“ MW Device address of the device
7762 „IL1_opN=“ MW IL1 (% of operational rated current)
7763 „ΦI L1=“ MW Angle IL1_remote <-> IL1_local
7764 „IL2_opN=“ MW IL2 (% of operational rated current)
7765 „ΦI L2=“ MW Angle IL2_remote <-> IL2_local
7766 „IL3_opN=“ MW IL3 (% of operational rated current)
7767 „ΦI L3=“ MW Angle IL3_remote <-> IL3_local
7769 „UL1_opN=“ MW UL1 (% of operational rated voltage)
7770 „ΦU L1=“ MW Angle UL1_remote <-> UL1_local
7771 „UL2_opN=“ MW UL2 (% of operational rated voltage)
7772 „ΦU L2=“ MW Angle UL2_remote <-> UL2_local
7773 „UL3_opN=“ MW UL3 (% of operational rated voltage)
7774 „ΦU L3=“ MW Angle UL3_remote <-> UL3_local
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Siemens SIPROTEC 7SD610 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SD610
Category	Relays
Language	English