•
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.
15.4
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
15.5
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.
Section 15
1MRK 502 067-UEN B
Troubleshooting
246
Commissioning manual
