Siemens siprotec 7SA6, Manual

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Configuration
5-2
7SA6 Manual
C53000-G1176-C156-2
5.1 Configuration of Functions
General The 7SA6 relay contains a series of protective and additional functions. The scope of
hardware and firmware is matched to these functions. Furthermore, commands (con-
trol actions) can be suited to individual needs of the protected object. In addition, indi-
vidual functions may be enabled or disabled during configuration, or interaction be-
tween functions may be adjusted.
In the following, an example for the configuration of the functions:
A substation has overhead line and transformer feeders. Fault location must only be
carried out on the overhead lines. This function therefore is disabled for devices on
transformer feeders.
The available functions must be configured as
enabled
or
disabled
. For individual
functions, the choice between several alternatives may be presented, as described
below.
Functions configured as
disabled
are not processed by the 7SA6. There are no
messages, and corresponding settings (functions, limit values) are not displayed dur-
ing detailed settings.
Determination of
Functional Scope Configuration settings may be entered using a PC and the software program DIGSI
®
4
and transferred via the operating interface on the device front, or via the serial service
interface. Operation via DIGSI
®
4 is described in Chapter 4 as well as in the DIGSI
®
4
manual, order number E50417–H1176–C097.
Entry of password No. 7 (for setting modification) is required to modify configuration
settings (see Chapter 4, last section). Without the password, the settings may be read,
but cannot be modified and transmitted to the device.
The functional scope with the available options is set in the
Device Configuration
dialogue box (see Figure 5-1) to match equipment requirements. To change a func-
tion, click on the corresponding line under
Scope
, and select the desired option in the
list which appears. The drop-down list closes automatically upon selection of an item.
Note:
Available functions and default settings depend on the ordering code of the relay (see
ordering code in the appendix for details).