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Overview
Overview
Required tools for testing of a terminal:
•
Calculated settings
•
Configuration diagram
•
Terminal diagram
•
Technical reference manual
•
Three-phase test equipment
The terminal has to be set and configured before the testing can start.
The terminal diagram, available in the Technical reference manual, is a general diagram for the
terminal. But note that the same diagram is not always applicable for each specific delivery (es-
pecially for the configuration of all the binary inputs and outputs). It is for this reason necessary
to check before testing that the available terminal diagram corresponds to the terminal.
The Technical reference manual contains application and functionality summaries, function
blocks, logic diagrams, input and output signals, setting parameters and technical data sorted per
function.
The test equipment should be able to provide a three-phase supply of voltages and currents. The
magnitude of voltage and current as well as the phase angle between voltage and current must
be variable. The voltages and currents from the test equipment must be obtained from the same
source and they must have a very small harmonic contents. If the test equipment cannot indicate
the phase angle, a separate phase-angle meter is necessary.
Prepare the terminal for test before testing a particular function. Consider the logic diagram of
the tested protection function when performing the test. All included functions in the terminal
are tested according to the corresponding test instructions in this chapter. The functions can be
tested in any order according to user preferences and the test instructions are therefor presented
in alphabetical order. Only the functions that are used (Operation is set to On) should be tested.
The response from a test can be viewed in different ways:
•
Binary outputs signals
•
Service values in the local HMI (logical signal or phasors)
•
A PC with CAP (configuration software) in debug mode
All used setting groups should be tested.
Note!
This terminal is designed for a maximum continuous current of four times the rated current.
Chapter 13
Verifying settings by secondary
injection
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