Operation Principle - ABB RELION REX640 Technical Manual

Section 9
Control functions
9.10.5
1540
in this document. The configuration can be written to the protection relay once the
mismatch is corrected.

Operation principle

The function can be enabled and disabled with the Operation setting. The
corresponding parameter values are "on" and "off".
The operation of OL5ATCC can be described with a module diagram. All the modules
in the diagram are explained in the next sections.
1MRS759142 C
REX640
Technical Manual