Testing Interfaces In The Compound System - Siemens SIPROTEC 5 Operation Manual

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Since measured values are also displayed apart from switching devices in the display diagram, check the
proper assignment of measured values by feeding and changing the test quantities.
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Tap changer position commands and control commands for arc-suppression coils can be checked via
DIGSI 5. Check the corresponding relay outputs and feedbacks via binary inputs or communication inter-
faces.

Testing Interfaces in the Compound System

7.4.3
Besides binary inputs and outputs, communication between devices occurs via serial communication inter-
faces. Test instructions are hereinafter given for the following applications:
Protection Communication Between Devices
A typical application is communication between line differential protection devices. The main protection func-
tion is differential protection which requires a functioning data connection between devices. Please refer to
the Device manual for checking the Differential protection function.
A 2nd application is communication between devices by transferring binary signal and measured values (for
example, remotely from the opposite end). You generate test signals with the communication test by setting
signals to be transmitted systematically in the transmitter and checking their receipt. Please refer to the
chapter Protection Interface in the Device manual for the necessary test items.
GOOSE Communication Between Devices
GOOSE communication is possible only with the IEC 61850 protocol. Check whether the interfaces and
switches are parameterized properly. Familiarize yourself with the information that is to be transmitted via
GOOSE (Generic Object Oriented Substation Event). Using external test programs such as the GOOSE
Inspector, you can automatically check all GOOSE connections configured in the SCD file. In the event of
missing connections, check the GOOSE parameterization of the transmitting device.
Communication Between Device and Control Center
Various protocols are available to you for communicating with a control center (station or network control
center). Besides DNP3 and IEC 60870-5-103, the IEC 61850 protocol has emerged as the leading protocol. The
test requires the exchange of parameterizations between the protection device and the systems and control
device. Test telegrams for the communication interfaces can be created using the editor described in
7.2.4 Creating Signals for Communication
telegrams are sent via all existing systems and control protocols.
The test sequencer can be another test source (see chapter
a protection function systematically towards pickup and release using the test sequencer. A fault record is also
simultaneously created during the process. In the systems control, check, for example, that the correct indica-
tions are coming and the fault record was correctly received. In case of a longer sequence you can also verify
the measured values. In addition, check communication in the direction of the device. If switching commands
are controlled by the systems control, check proper execution.
SIPROTEC 5, Operation, Manual
C53000-G5040-C003-7, Edition 06.2016
Interfaces. When setting states in the device, the corresponding
7.2.3 Testing Protection
Commissioning
7.4 Secondary Tests
Functions). You can bring
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