•
Calculated settings
•
Valid configuration diagram for the IED
•
Valid terminal diagram for the IED
•
Technical manual
•
Three-phase test equipment
•
The test equipment should be able to provide a three-phase supply of currents and
three-phase voltage. The magnitude and angle of currents (and voltages) should
be possible to vary. Check that the IED is prepared for test before starting the test
session. Consider the logic diagram of the function when performing the test.
The response from a test can be viewed in different ways.
•
Binary output signals
•
Service values in the LHMI (logical signal or phasors)
•
A PC with PCM600 (configuration software) in debug mode
Do not switch off the auxiliary power supply to the IED before the
changes, for example, setting parameter or local/remote control state
changes, are saved.
A mechanism for limiting the number of writings per time period is included in the
IED to prevent the flash memory from wearing out due to too many writings caused
by the application configuration. As a consequence, saving application function states
may take up to an hour. If the auxiliary power is interrupted before the states are saved,
that change is lost. Settings and configuration parameters are saved without delay.
4.2
Activating the test mode
Put the IED into the test mode before testing. The test mode blocks all protection
functions and some of the control functions in the IED, and the individual functions to
be tested can be unblocked to prevent unwanted operation caused by other functions.
In this way, it is possible to test slower back-up measuring functions without the
interference from faster measuring functions. Test mode is indicated when the yellow
StartLED flashes.
1.
Select
Main menu/Tests/IED test mode
2.
Set parameter
TestMode
to "On".
3.
Save the changes.
As a consequence, the yellow startLED starts flashing as a reminder and remains
flashing until the test mode is switched off.
Section 4
1MRS756801 E
Testing IED operation
24
630 series
Commissioning Manual