Table of Contents
Advertisement
System Functions
3.3 Processing Quality Attributes
3.3
Processing Quality Attributes
Overview
3.3.1
The IEC 61850 standard defines certain quality attributes for data objects (DO), the so-called Quality. The
SIPROTEC 5 system automatically processes some of these quality attributes. In order to handle different appli-
cations, you can influence certain quality attributes and also the values of the data objects on the basis of
these quality attributes. This is how you can ensure the necessary functionality.
The following figure describes roughly the general data flow within a SIPROTEC 5 device. The following figure
also shows at which points the quality can be influenced. The building blocks presented in the figure are
described in more detail in the following.
[loquali1-090212-02.tif, 2, en_US]
Figure 3-25
Supported Quality Attributes
The following quality attributes are automatically processed within the SIPROTEC 5 system.
•
Validity using the values
The Validity quality attribute shows if an object transferred via a GOOSE message is received (valid,
invalid) or not received (invalid). The
setting a substitute value for the object that is not received (see
User for Received GOOSE
If the device receives one of these values, it is replaced by the
as
invalid .
If one of the detailed quality attributes (detailQual) has the value
invalid value, unless this was already done at the transmitter end.
•
Test using the values
The Test quality attribute indicates to the receiver device that the object received via a GOOSE message
was created under test conditions and not operating conditions.
88
Data Flow within a SIPROTEC 5 Device
good or invalid
invalid state can be suppressed in the receiver device by also
Values). The substitute value is forwarded to the functions.
TRUE , FALSE
3.3.2 Quality Processing/Affected by the
invalid value and thus processed further
TRUE , then Validity is set to the
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
Advertisement
Table of Contents
