5. Unscrew the main back plate of the IED.
6. If the transformer module is to be changed:
•
Remove the IED from the panel if necessary.
•
Remove the rear plate of the IED.
•
Remove the front plate.
•
Remove the screws of the transformer input module, both front and rear.
7. Pull out the faulty module.
8. Check that the new module has a correct identity number.
9. Check that the springs on the card rail are connected to the corresponding
metallic area on the circuit board when the new module is inserted.
10. Reassemble the IED.
If the IED has been calibrated with the system inputs, the calibration procedure
must be performed again to maintain the total system accuracy.
12.4
Repair support
M11768-3 v3
If an IED needs to be repaired, the whole IED must be removed and sent to an
ABB Logistic Center. Before returning the material, an inquiry must be sent to the
ABB Logistic Center.
e-mail: offer.selog@se.abb.com
12.5
Maintenance
M11769-3 v2
The IED is self-supervised. No special maintenance is required.
Instructions from the power network company and other maintenance directives
valid for maintenance of the power system must be followed.
1MRK 506 377-UEN C
Section 12
Troubleshooting
Railway application RER670 2.2 IEC
197
Commissioning manual
Summary of Contents for RELION RER670
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