Siemens 7SJ82, Manual

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Pulse- and Energy- Metered Values , Transformer Taps
Pulse-Metered Values
Pulse-metered values are available as data types BCR (Binary Counter Reading) in the DIGSI library under User-
defined Functions.
The functionality and the settings of the pulse-metered values can be found in chapter
10.8.1 Function
Description of Pulse-Metered Values .
Transformer Taps
Transformer taps are contained in the Transformer tap changers switching element. When the Transformer
tap changer switching element is created in the device, the transformer tap position is available as a data
object of type BSC (binary controlled tap changer with tap-position information).
You can find detailed information in
8.8.1 Function Description .
Energy-Metered Values
Energy-metered values no longer need to be created by the user separately. They are available as active and
reactive power in each Line function group for reference and output direction. The calculation is based on the
current and voltage transformers associated with the protected object.
You can find more detailed information in chapter
10.7.1 Function Description of Energy Values .
Additional Data Types
The following data types are also used in the system but are not available for general use as user-defined
signals in the library:
•
ENC (Enumerated Setting Controllable)
The data type ENC models a command with which the user can set predefined values.
•
SEQ (Sequence)
•
BSC (Binary Controlled Step Position)
The data type BSC can, for example, be used to control a transformer tap changer. The commands up,
down can be given.
i
i
NOTE
Transformer taps are included in the Transformer tap changer switching element. If this switching
element is created in the device, the transformer tap position is available as a data object of type BSC
(binary controlled step position information).
External Signals
User-defined signals of different types (see Figure 3-77 ) are available for GOOSE Later Binding. After instantia-
tion in a logical node, an external reference is generated during IID export and provided to a IEC 61850 system
tool (for example, System Configurator) for GOOSE Later Binding (according to the Later-Binding procedure
specified in IEC 61850-6).
3.7.3
3.7.4
3.7.5
System Functions
3.7 User-Defined Objects
158 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017