Siemens siprotec 7SA522, User Manual

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Configuration
5-2
7SA522 Manual
C53000-G1176-C119-2
5.1 Configuration of Functions
General The 7SA522 relay contains a series of protective and additional functions. The scope
of hardware and firmware is matched to these functions. Furthermore, commands
(control actions) can be suited to individual needs of the protected object. In addition,
individual functions may be enabled or disabled during configuration, or interaction be-
tween functions may be adjusted.
Example for the configuration of the scope of functions:
A substation has overhead line and transformer feeders. Fault location must only be
carried out on the line feeders. The devices in the transformer bays will therefore be
configured to disable this function.
The available functions must be configured as
HQDEOHG
or
GLVDEOHG
. For individual
functions, the choice between several alternatives may be presented, as described
below.
Functions configured as
GLVDEOHG
are not processed by the 7SA522. 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 rear 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, default 000000) is required to modify
configuration settings (see Section 4.16). 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
'HYLFH&RQILJXUDWLRQ
dialogue box (see Figure 5-1) to match equipment requirements. To change a func-
tion, click on the corresponding line under
6FRSH
, 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 are depending on the ordering code of the re-
lay (see ordering code in the appendix for details).