Siemens 6MD85, Руководство пользователя

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Function Embedding in the Device
General
SIPROTEC 5 devices offer great flexibility in the handling of functions. Functions can be individually loaded
into the device. Additionally, it is possible to copy functions within a device or between devices. The necessary
integration of functions in the device is illustrated by the following example.
i
i
NOTE
The availability of certain settings and setting options depends on the device type and the functions avail-
able on the device!
EXAMPLE
A 1 1/2 circuit breaker layout of the 6MD86 serves as an example. The following protection functions are
required for implementation (simplified and reduced):
•
Automatic reclosing (79)
•
Circuit-breaker failure protection (50BF), for circuit breakers 1 and 2
•
Basic functionality (switchgear interlocking protection, control, etc.)
Several predefined function packages that are tailored to specific applications exist for each device family. A
predefined functional scope is called an application template. The existing application templates are offered
for selection automatically when you create a new device in DIGSI 5.
EXAMPLE
When creating the device in DIGSI 5, you must select the appropriate 6MD86 application template. In the
example, select the application template 1 1/2 circuit-breaker layout configuration Type 2. This application
template covers the required functional scope. Selecting this application template determines the preconfig-
ured functional scope. This can be changed as necessary (see chapter
2.2 Adjustment of Application
Templates/Functional Scope ).
Function Groups (FG)
Functions are arranged in function groups. This simplifies handling of functions (adding and copying). The
function groups are assigned to primary objects, such as transformer, or circuit breaker.
The function groups bundle functions with regard to the following basic tasks:
•
Assignment of functions to current and/or voltage transformers (assignment of functions to the meas-
uring points and thus to the protected object)
•
Exchange of information between function groups
When a function is copied into a function group, it automatically works with the measuring points assigned to
the function group. Their output signals are also automatically included in the configured interfaces of the
function group.
The number and type of function groups differ in the respective application templates, depending on the type
of the device and application. You can add, copy, or even delete function groups for a specific application. You
can also adapt the functional scope within a function group according to the use case. You can find detailed
information on this in the DIGSI 5 Online help.
Interface Between Function Group and Measuring Point
The function groups receive the measurands of the current and voltage transformers from measuring points.
For this, the function groups are connected to one or more measuring points.
The number of measuring points and the assignment of function groups to the measuring points are preset by
the selected application template in accordance with the specific application. Therefore, this specifies which
2.1
Basic Structure of the Function
2.1 Function Embedding in the Device
36 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017