If the IED has been calibrated with the system inputs, the calibration procedure
must be performed again to maintain the total system accuracy.
13.4
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: [email protected]
13.5
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 13
1MRK 505 372-UEN A
Troubleshooting
178
Busbar protection REB670 2.2 IEC
Commissioning manual
