ABB REL 551 2.3 Series Installation And Comissioning Manual page 76


70
Overview
2YHUYLHZ
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 spe-
cific delivery (especially 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 cor-
responds to the terminal.
The Technical reference manual contains application and functionality summaries,
function blocks, logic diagrams, input and output signals, setting parameters and tech-
nical data sorted per function.
The test equipment should be able to provide a three-phase supply of voltages and cur-
rents. 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 di-
agram 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 in-
structions 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.
&KDSWHU 
9HULI\LQJ VHWWLQJV E\ VHFRQGDU\
LQMHFWLRQ