Siemens siprotec 7SA6, Manual

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Configuration
5-48
7SA6 Manual
C53000-G1176-C156-2
5.4 Establishing a Default Display
The default display is the display appearing automatically after the initialization of the
processor system. There are two types of displays, the 4-line LC display and the
graphic display.
4-line LC Display Under normal conditions, the so-called default display is the default image in the relay
display. It shows operating information and/or measured values of the protected
equipment. Depending on the relay type, a number of predefined basic displays are
available. Using the
and keys, one of the displayed images may be selected
(see example in the following figure), causing it to appear as the default display under
normal conditions.
Figure 5-45 Default display
Default Display of a
Graphic Display In the idle state the so-called default display appears on the display of the device as a
continuous display. It can be configured by the user. Normally, a schematic plan of the
feeder is chosen as a basis so that a graphical overview of the switching state of the
station is always available. It is not possible to operate the switching objects via this
default display. However, the default display can be supplemented by further informa-
tion, e.g. the most important measured operational values (current and voltage in the
feeder) can continuously be displayed.
When the device is delivered, it might provide one or more pre-assembled default dis-
plays (for example, see Figure 5-46). These can be modified or replaced to adapt to
the actual substation conditions. However, it is also possible to display other informa-
tion than the station image on a default display. The display, for example, can be used
to view a variety of operational measured values.
Under normal conditions, a preset image is shown as the default display. The layout
of this default display may be configured by the user. In general, a single-line diagram
of the protected system is designed as the default display in order to show a continu-
ous graphical image of the switching condition of the protected equipment. Operation
of switching devices from this display is not possible. The display, however, may be
enhanced with additional information. So, for example, the most significant operating
values (system currents and voltages) may be displayed continuously.
As delivered, the relay shows a basic default image (see Figure 5-46) which may be
modified or replaced to show the actual equipment conditions. It is also possible, how-
ever, to show information in addition to the single-line diagram. The display may also
be used, for example, to show a number of measured values.
Procedure The Display Editor in DIGSI
®
4 is used to create or modify the default or control dis-
play. The basic procedure is described in Section 4.9. For detailed information, consult
the Display Editor Manual (order number E50417–H1176–C095).
A precondition for modification or creation of dynamic objects within this display is, the
information which is to appear must be configured in the configuration matrix (see
Section 5.2), i.e. the information of the respective lines in the
Destination
% I ULE ULL
L1 100.1 102.0 102.2
L2 102.5 102.5 100.0
L3 98.7 98.7 99.8