Removing The Ied; Sending Protection Relay For Repair; Exchanging Protection Relay - ABB Relion 620 Series Installation Manuals

Section 6
Removing, repairing and exchanging
6.3
6.4
6.5
52

Removing the IED

1. Turn off the power.
2. Detach the plug-in unit from the case.
3. Disconnect the wiring.
4. Loosen the four M5 fixing screws.
GUID-D5C8B9E4-24C0-42A5-8632-997132CEE995 V1 EN
Figure 45: Loosening the M5 screws
5. Detach the case from the panel cut-out.

Sending protection relay for repair

• In case of product problems, contact the nearest ABB office or representative for
consultation and instructions.

Exchanging protection relay

• To exchange the protection relay with another identical unit, remove the
protection relay and install the new one.
1MRS757641 E
620 series
Installation Manual