Preparing For Test; Preparing The Ied To Verify Settings - ABB RET670 Installation And Commissioning Manual

Section 13
Verifying settings by secondary injection
13.2
13.2.1
106
Prepare the IED 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 IED 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 therefore 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 on the local HMI (logical signals or phasors)
• A PC with PCM600 application configuration software in debug mode
All setting groups that are used should be tested.
This IED is designed for a maximum continuous current of four
times the rated current.
Please observe the measuring accuracy of the IED, the test
equipment and the angular accuracy for both of them.
Please consider the configured logic from the function block to the
output contacts when measuring the operate time.

Preparing for test

Preparing the IED to verify settings

If a test switch is included, start preparation by making the necessary connections
to the test switch. This means connecting the test equipment according to a specific
and designated IED terminal diagram.
Put the IED into test mode to facilitate the test of individual functions and prevent
unwanted operation caused by other functions. The test switch should then be
connected to the IED.
Verify that analog input signals from the analog input module are measured and
recorded correctly by injecting currents and voltages required by the specific IED.
To make testing even more effective PCM600 should be used. PCM600 includes
the Signal monitoring tool, which is useful to read of the individual currents and
voltages, their amplitudes and phase angles. In addition PCM600 contains the
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Installation and commissioning manual