•
Calculated settings
•
Valid configuration diagram for the IED
•
Valid terminal diagram for the IED
•
Technical manual
•
Three-phase test equipment
Content of the technical manual.
•
Application and functionality summaries
•
Function blocks
•
Logic diagrams
•
Input and output signals
•
A list of setting parameters
•
Technical data for the function
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 local HMI (logical signal or phasors)
•
Using the online mode in the PCM600 configuration software
Do not switch off the auxiliary power supply to the IED before 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 to be worn out due to too many writings. As a consequence it may
take up to an hour to save changes. If the auxiliary power is interrupted before a change is
saved, that change is lost.
6.2
Activating the test mode
M11412-2 v10
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. The busbar differential protection is not included in the test mode and is not
prevented to operate during the test operations. The test switch should then be connected to
the IED.Test mode is indicated when the yellow StartLED flashes.
1.
Select Main menu/Tests/IED test mode/TESTMODE:1
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 6
1MRK 505 293-UEN B
Testing IED operation
38
Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved
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