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1MRK 505 378-UEN Rev. K
14.4
Repair support
If an IED needs to be repaired, the whole IED must be removed and sent to an Hitachi Power grids
Logistic Center. Before returning the material, an inquiry must be sent to the Hitachi Power grids
Logistic Center.
e-mail: offer.selog@se.Hitachi Power grids.com
14.5
Maintenance
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.
Line differential protection RED670
Commissioning manual
© 2017 - 2022 Hitachi Energy. All rights reserved
Section 14
Troubleshooting
M11768-3 v4
M11769-3 v2
269
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