Functions
2.1 General
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
43
2.1.3
Power System Data 1
2.1.3.1
Description
The device requires certain basic data regarding the protected equipment so that the device can adapt to its
desired application. These may be, for instance, nominal power system and transformer data, measured quan-
tity polarities and their physical connections, breaker properties (where applicable) etc. There are also certain
parameters that are common to all functions, i.e. not associated with a specific protection, control or monitoring
function. The following section discusses these parameters.
2.1.3.2
Setting Notes
General
The data for parameters
209
PHASE SEQ.
,
210
TMin TRIP CMD
,
211
TMax CLOSE CMD
and
212
BkrClosed I MIN
can be entered directly at the device if it features an integrated or detached operator panel:
Press the
MENU
key to open the main menu. Apply the
▼
key to select
SETTINGS
and then press the
X
key to
navigate to the SETTINGS display. To enter the Power System Data, select the
P.System Data 1
in the
SETTINGS
menu.
In DIGSI, doubleclick
Settings
to display the relevant selection. A dialog box with tabs , , , and Prot.Op. quant.
will open under
P.System Data 1
in which you can configure the individual parameters. The following de-
scriptions are therefore structured accordingly.
Rated Frequency (Power System Data)
The rated system frequency is set at address
214
Rated Frequency
. The factory setting of the model
number only has to be changed if the device is used for a purpose other than the one planned when ordering
the device.
Phase Rotation (Power System)
Address
209
PHASE SEQ.
is used to change the default phase sequence (
A B C
for clockwise rotation) if your
power system permanently has an anti-clockwise phase sequence (
A C B
). A temporary reversal of rotation
is also possible using binary inputs (see Section 2.21.2).
Temperature Unit (Power System)
Address
276
TEMP. UNIT
allows displaying the temperature values either in degrees Celsius or in degrees
Fahrenheit.
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